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pigweed / third_party / github / FreeRTOS / FreeRTOS-Kernel / 9c0c37ab9b56f2c90085b78df2f58b5833e473db / . / FreeRTOS / Demo / CORTEX_MPU_M23_Nuvoton_NuMaker_PFM_M2351_IAR_GCC / Nuvoton_Code / StdDriver / src / crypto.c
blob: 4acedff66b307b6479920ce0eb7c90d842150d00 [file] [log] [blame]
/**************************************************************************//**
* @file crypto.c
* @version V1.10
* @brief Cryptographic Accelerator driver source file
*
* @copyright (C) 2017 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include <stdio.h>
#include <string.h>
#include "M2351.h"
#define ENABLE_DEBUG 0
#define XOM_SUPPORT 0
#if ENABLE_DEBUG
#define CRPT_DBGMSG printf
#else
#define CRPT_DBGMSG(...) do { } while (0) /* disable debug */
#endif
#if defined(__ICCARM__)
# pragma diag_suppress=Pm073, Pm143 /* Misra C rule 14.7 */
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup CRYPTO_Driver CRYPTO Driver
@{
*/
/** @addtogroup CRYPTO_EXPORTED_FUNCTIONS CRYPTO Exported Functions
@{
*/
/* // @cond HIDDEN_SYMBOLS */
static uint32_t g_AES_CTL[4];
static uint32_t g_TDES_CTL[4];
static char hex_char_tbl[] = "0123456789abcdef";
static void dump_ecc_reg(char *str, uint32_t volatile regs[], int32_t count);
static char get_Nth_nibble_char(uint32_t val32, uint32_t idx);
static void Hex2Reg(char input[], uint32_t volatile reg[]);
static void Reg2Hex(int32_t count, uint32_t volatile reg[], char output[]);
static char ch2hex(char ch);
static void Hex2RegEx(char input[], uint32_t volatile reg[], int shift);
static int get_nibble_value(char c);
/* // @endcond HIDDEN_SYMBOLS */
/**
* @brief Open PRNG function
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32KeySize it is PRNG key size, including:
* - \ref PRNG_KEY_SIZE_64
* - \ref PRNG_KEY_SIZE_128
* - \ref PRNG_KEY_SIZE_192
* - \ref PRNG_KEY_SIZE_256
* @param[in] u32SeedReload is PRNG seed reload or not, including:
* - \ref PRNG_SEED_CONT
* - \ref PRNG_SEED_RELOAD
* @param[in] u32Seed The new seed. Only valid when u32SeedReload is PRNG_SEED_RELOAD.
* @return None
*/
void PRNG_Open(CRPT_T *crpt, uint32_t u32KeySize, uint32_t u32SeedReload, uint32_t u32Seed)
{
if(u32SeedReload)
{
crpt->PRNG_SEED = u32Seed;
}
crpt->PRNG_CTL = (u32KeySize << CRPT_PRNG_CTL_KEYSZ_Pos) |
(u32SeedReload << CRPT_PRNG_CTL_SEEDRLD_Pos);
}
/**
* @brief Start to generate one PRNG key.
* @param[in] crpt The pointer of CRYPTO module
* @return None
*/
void PRNG_Start(CRPT_T *crpt)
{
crpt->PRNG_CTL |= CRPT_PRNG_CTL_START_Msk;
}
/**
* @brief Read the PRNG key.
* @param[in] crpt The pointer of CRYPTO module
* @param[out] u32RandKey The key buffer to store newly generated PRNG key.
* @return None
*/
void PRNG_Read(CRPT_T *crpt, uint32_t u32RandKey[])
{
uint32_t i, wcnt;
wcnt = (((crpt->PRNG_CTL & CRPT_PRNG_CTL_KEYSZ_Msk) >> CRPT_PRNG_CTL_KEYSZ_Pos) + 1U) * 2U;
for(i = 0U; i < wcnt; i++)
{
u32RandKey[i] = crpt->PRNG_KEY[i];
}
crpt->PRNG_CTL &= ~CRPT_PRNG_CTL_SEEDRLD_Msk;
}
/**
* @brief Open AES encrypt/decrypt function.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel AES channel. Must be 0~3.
* @param[in] u32EncDec 1: AES encode; 0: AES decode
* @param[in] u32OpMode AES operation mode, including:
* - \ref AES_MODE_ECB
* - \ref AES_MODE_CBC
* - \ref AES_MODE_CFB
* - \ref AES_MODE_OFB
* - \ref AES_MODE_CTR
* - \ref AES_MODE_CBC_CS1
* - \ref AES_MODE_CBC_CS2
* - \ref AES_MODE_CBC_CS3
* @param[in] u32KeySize is AES key size, including:
* - \ref AES_KEY_SIZE_128
* - \ref AES_KEY_SIZE_192
* - \ref AES_KEY_SIZE_256
* @param[in] u32SwapType is AES input/output data swap control, including:
* - \ref AES_NO_SWAP
* - \ref AES_OUT_SWAP
* - \ref AES_IN_SWAP
* - \ref AES_IN_OUT_SWAP
* @return None
*/
void AES_Open(CRPT_T *crpt, uint32_t u32Channel, uint32_t u32EncDec,
uint32_t u32OpMode, uint32_t u32KeySize, uint32_t u32SwapType)
{
crpt->AES_CTL = (u32Channel << CRPT_AES_CTL_CHANNEL_Pos) |
(u32EncDec << CRPT_AES_CTL_ENCRPT_Pos) |
(u32OpMode << CRPT_AES_CTL_OPMODE_Pos) |
(u32KeySize << CRPT_AES_CTL_KEYSZ_Pos) |
(u32SwapType << CRPT_AES_CTL_OUTSWAP_Pos);
g_AES_CTL[u32Channel] = crpt->AES_CTL;
}
/**
* @brief Start AES encrypt/decrypt
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel AES channel. Must be 0~3.
* @param[in] u32DMAMode AES DMA control, including:
* - \ref CRYPTO_DMA_ONE_SHOT One shop AES encrypt/decrypt.
* - \ref CRYPTO_DMA_CONTINUE Continuous AES encrypt/decrypt.
* - \ref CRYPTO_DMA_LAST Last AES encrypt/decrypt of a series of AES_Start.
* @return None
*/
void AES_Start(CRPT_T *crpt, int32_t u32Channel, uint32_t u32DMAMode)
{
crpt->AES_CTL = g_AES_CTL[u32Channel];
crpt->AES_CTL |= CRPT_AES_CTL_START_Msk | (u32DMAMode << CRPT_AES_CTL_DMALAST_Pos);
}
/**
* @brief Set AES keys
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel AES channel. Must be 0~3.
* @param[in] au32Keys An word array contains AES keys.
* @param[in] u32KeySize is AES key size, including:
* - \ref AES_KEY_SIZE_128
* - \ref AES_KEY_SIZE_192
* - \ref AES_KEY_SIZE_256
* @return None
*/
void AES_SetKey(CRPT_T *crpt, uint32_t u32Channel, uint32_t au32Keys[], uint32_t u32KeySize)
{
uint32_t i, wcnt, key_reg_addr;
key_reg_addr = (uint32_t)&crpt->AES0_KEY[0] + (u32Channel * 0x3CUL);
wcnt = 4UL + u32KeySize * 2UL;
for(i = 0U; i < wcnt; i++)
{
outpw(key_reg_addr, au32Keys[i]);
key_reg_addr += 4UL;
}
}
/**
* @brief Set AES initial vectors
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel AES channel. Must be 0~3.
* @param[in] au32IV A four entry word array contains AES initial vectors.
* @return None
*/
void AES_SetInitVect(CRPT_T *crpt, uint32_t u32Channel, uint32_t au32IV[])
{
uint32_t i, key_reg_addr;
key_reg_addr = (uint32_t)&crpt->AES0_IV[0] + (u32Channel * 0x3CUL);
for(i = 0U; i < 4U; i++)
{
outpw(key_reg_addr, au32IV[i]);
key_reg_addr += 4UL;
}
}
/**
* @brief Set AES DMA transfer configuration.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel AES channel. Must be 0~3.
* @param[in] u32SrcAddr AES DMA source address
* @param[in] u32DstAddr AES DMA destination address
* @param[in] u32TransCnt AES DMA transfer byte count
* @return None
*/
void AES_SetDMATransfer(CRPT_T *crpt, uint32_t u32Channel, uint32_t u32SrcAddr,
uint32_t u32DstAddr, uint32_t u32TransCnt)
{
uint32_t reg_addr;
reg_addr = (uint32_t)&crpt->AES0_SADDR + (u32Channel * 0x3CUL);
outpw(reg_addr, u32SrcAddr);
reg_addr = (uint32_t)&crpt->AES0_DADDR + (u32Channel * 0x3CUL);
outpw(reg_addr, u32DstAddr);
reg_addr = (uint32_t)&crpt->AES0_CNT + (u32Channel * 0x3CUL);
outpw(reg_addr, u32TransCnt);
}
/**
* @brief Open TDES encrypt/decrypt function.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel TDES channel. Must be 0~3.
* @param[in] u32EncDec 1: TDES encode; 0: TDES decode
* @param[in] Is3DES 1: TDES; 0: DES
* @param[in] Is3Key 1: TDES 3 key mode; 0: TDES 2 key mode
* @param[in] u32OpMode TDES operation mode, including:
* - \ref TDES_MODE_ECB
* - \ref TDES_MODE_CBC
* - \ref TDES_MODE_CFB
* - \ref TDES_MODE_OFB
* - \ref TDES_MODE_CTR
* @param[in] u32SwapType is TDES input/output data swap control and word swap control, including:
* - \ref TDES_NO_SWAP
* - \ref TDES_WHL_SWAP
* - \ref TDES_OUT_SWAP
* - \ref TDES_OUT_WHL_SWAP
* - \ref TDES_IN_SWAP
* - \ref TDES_IN_WHL_SWAP
* - \ref TDES_IN_OUT_SWAP
* - \ref TDES_IN_OUT_WHL_SWAP
* @return None
*/
void TDES_Open(CRPT_T *crpt, uint32_t u32Channel, uint32_t u32EncDec, int32_t Is3DES, int32_t Is3Key,
uint32_t u32OpMode, uint32_t u32SwapType)
{
g_TDES_CTL[u32Channel] = (u32Channel << CRPT_TDES_CTL_CHANNEL_Pos) |
(u32EncDec << CRPT_TDES_CTL_ENCRPT_Pos) |
u32OpMode | (u32SwapType << CRPT_TDES_CTL_BLKSWAP_Pos);
if(Is3DES)
{
g_TDES_CTL[u32Channel] |= CRPT_TDES_CTL_TMODE_Msk;
}
if(Is3Key)
{
g_TDES_CTL[u32Channel] |= CRPT_TDES_CTL_3KEYS_Msk;
}
}
/**
* @brief Start TDES encrypt/decrypt
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel TDES channel. Must be 0~3.
* @param[in] u32DMAMode TDES DMA control, including:
* - \ref CRYPTO_DMA_ONE_SHOT One shop TDES encrypt/decrypt.
* - \ref CRYPTO_DMA_CONTINUE Continuous TDES encrypt/decrypt.
* - \ref CRYPTO_DMA_LAST Last TDES encrypt/decrypt of a series of TDES_Start.
* @return None
*/
void TDES_Start(CRPT_T *crpt, int32_t u32Channel, uint32_t u32DMAMode)
{
g_TDES_CTL[u32Channel] |= CRPT_TDES_CTL_START_Msk | (u32DMAMode << CRPT_TDES_CTL_DMALAST_Pos);
crpt->TDES_CTL = g_TDES_CTL[u32Channel];
}
/**
* @brief Set TDES keys
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel TDES channel. Must be 0~3.
* @param[in] au32Keys The TDES keys. au32Keys[0][0] is Key0 high word and au32Keys[0][1] is key0 low word.
* @return None
*/
void TDES_SetKey(CRPT_T *crpt, uint32_t u32Channel, uint32_t au32Keys[3][2])
{
uint32_t i, reg_addr;
reg_addr = (uint32_t)&crpt->TDES0_KEY1H + (0x40UL * u32Channel);
for(i = 0U; i < 3U; i++)
{
outpw(reg_addr, au32Keys[i][0]); /* TDESn_KEYxH */
reg_addr += 4UL;
outpw(reg_addr, au32Keys[i][1]); /* TDESn_KEYxL */
reg_addr += 4UL;
}
}
/**
* @brief Set TDES initial vectors
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel TDES channel. Must be 0~3.
* @param[in] u32IVH TDES initial vector high word.
* @param[in] u32IVL TDES initial vector low word.
* @return None
*/
void TDES_SetInitVect(CRPT_T *crpt, uint32_t u32Channel, uint32_t u32IVH, uint32_t u32IVL)
{
uint32_t reg_addr;
reg_addr = (uint32_t)&crpt->TDES0_IVH + (u32Channel * 0x40UL);
outpw(reg_addr, u32IVH);
reg_addr = (uint32_t)&crpt->TDES0_IVL + (u32Channel * 0x40UL);
outpw(reg_addr, u32IVL);
}
/**
* @brief Set TDES DMA transfer configuration.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32Channel TDES channel. Must be 0~3.
* @param[in] u32SrcAddr TDES DMA source address
* @param[in] u32DstAddr TDES DMA destination address
* @param[in] u32TransCnt TDES DMA transfer byte count
* @return None
*/
void TDES_SetDMATransfer(CRPT_T *crpt, uint32_t u32Channel, uint32_t u32SrcAddr,
uint32_t u32DstAddr, uint32_t u32TransCnt)
{
uint32_t reg_addr;
reg_addr = (uint32_t)&crpt->TDES0_SADDR + (u32Channel * 0x40UL);
outpw(reg_addr, u32SrcAddr);
reg_addr = (uint32_t)&crpt->TDES0_DADDR + (u32Channel * 0x40UL);
outpw(reg_addr, u32DstAddr);
reg_addr = (uint32_t)&crpt->TDES0_CNT + (u32Channel * 0x40UL);
outpw(reg_addr, u32TransCnt);
}
/**
* @brief Open SHA encrypt function.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32OpMode SHA operation mode, including:
* - \ref SHA_MODE_SHA1
* - \ref SHA_MODE_SHA224
* - \ref SHA_MODE_SHA256
* @param[in] u32SwapType is SHA input/output data swap control, including:
* - \ref SHA_NO_SWAP
* - \ref SHA_OUT_SWAP
* - \ref SHA_IN_SWAP
* - \ref SHA_IN_OUT_SWAP
* @param[in] hmac_key_len HMAC key byte count
* @return None
*/
void SHA_Open(CRPT_T *crpt, uint32_t u32OpMode, uint32_t u32SwapType, uint32_t hmac_key_len)
{
crpt->HMAC_CTL = (u32OpMode << CRPT_HMAC_CTL_OPMODE_Pos) |
(u32SwapType << CRPT_HMAC_CTL_OUTSWAP_Pos);
if(hmac_key_len != 0UL)
{
crpt->HMAC_KEYCNT = hmac_key_len;
}
}
/**
* @brief Start SHA encrypt
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32DMAMode TDES DMA control, including:
* - \ref CRYPTO_DMA_ONE_SHOT One shop SHA encrypt.
* - \ref CRYPTO_DMA_CONTINUE Continuous SHA encrypt.
* - \ref CRYPTO_DMA_LAST Last SHA encrypt of a series of SHA_Start.
* @return None
*/
void SHA_Start(CRPT_T *crpt, uint32_t u32DMAMode)
{
crpt->HMAC_CTL &= ~(0x7UL << CRPT_HMAC_CTL_DMALAST_Pos);
crpt->HMAC_CTL |= CRPT_HMAC_CTL_START_Msk | (u32DMAMode << CRPT_HMAC_CTL_DMALAST_Pos);
}
/**
* @brief Set SHA DMA transfer
* @param[in] crpt The pointer of CRYPTO module
* @param[in] u32SrcAddr SHA DMA source address
* @param[in] u32TransCnt SHA DMA transfer byte count
* @return None
*/
void SHA_SetDMATransfer(CRPT_T *crpt, uint32_t u32SrcAddr, uint32_t u32TransCnt)
{
crpt->HMAC_SADDR = u32SrcAddr;
crpt->HMAC_DMACNT = u32TransCnt;
}
/**
* @brief Read the SHA digest.
* @param[in] crpt The pointer of CRYPTO module
* @param[out] u32Digest The SHA encrypt output digest.
* @return None
*/
void SHA_Read(CRPT_T *crpt, uint32_t u32Digest[])
{
uint32_t i, wcnt, reg_addr;
i = (crpt->HMAC_CTL & CRPT_HMAC_CTL_OPMODE_Msk) >> CRPT_HMAC_CTL_OPMODE_Pos;
if(i == SHA_MODE_SHA1)
{
wcnt = 5UL;
}
else if(i == SHA_MODE_SHA224)
{
wcnt = 7UL;
}
else if(i == SHA_MODE_SHA256)
{
wcnt = 8UL;
}
else if(i == SHA_MODE_SHA384)
{
wcnt = 12UL;
}
else
{
/* SHA_MODE_SHA512 */
wcnt = 16UL;
}
reg_addr = (uint32_t) & (crpt->HMAC_DGST[0]);
for(i = 0UL; i < wcnt; i++)
{
u32Digest[i] = inpw(reg_addr);
reg_addr += 4UL;
}
}
/*-----------------------------------------------------------------------------------------------*/
/* */
/* ECC */
/* */
/*-----------------------------------------------------------------------------------------------*/
#define ECCOP_POINT_MUL (0x0UL << CRPT_ECC_CTL_ECCOP_Pos)
#define ECCOP_MODULE (0x1UL << CRPT_ECC_CTL_ECCOP_Pos)
#define ECCOP_POINT_ADD (0x2UL << CRPT_ECC_CTL_ECCOP_Pos)
#define ECCOP_POINT_DOUBLE (0x0UL << CRPT_ECC_CTL_ECCOP_Pos)
#define MODOP_DIV (0x0UL << CRPT_ECC_CTL_MODOP_Pos)
#define MODOP_MUL (0x1UL << CRPT_ECC_CTL_MODOP_Pos)
#define MODOP_ADD (0x2UL << CRPT_ECC_CTL_MODOP_Pos)
#define MODOP_SUB (0x3UL << CRPT_ECC_CTL_MODOP_Pos)
enum
{
CURVE_GF_P,
CURVE_GF_2M,
};
/*-----------------------------------------------------*/
/* Define elliptic curve (EC): */
/*-----------------------------------------------------*/
#if !XOM_SUPPORT // Replace with XOM ready curve table
const ECC_CURVE _Curve[] =
{
{
/* NIST: Curve P-192 : y^2=x^3-ax+b (mod p) */
CURVE_P_192,
48, /* Echar */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC", /* "000000000000000000000000000000000000000000000003" */
"64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1",
"188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012",
"07192b95ffc8da78631011ed6b24cdd573f977a11e794811",
58, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF", /* "6277101735386680763835789423207666416083908700390324961279" */
58, /* Eol */
"FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831", /* "6277101735386680763835789423176059013767194773182842284081" */
192, /* key_len */
7,
2,
1,
CURVE_GF_P
},
{
/* NIST: Curve P-224 : y^2=x^3-ax+b (mod p) */
CURVE_P_224,
56, /* Echar */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE", /* "00000000000000000000000000000000000000000000000000000003" */
"b4050a850c04b3abf54132565044b0b7d7bfd8ba270b39432355ffb4",
"b70e0cbd6bb4bf7f321390b94a03c1d356c21122343280d6115c1d21",
"bd376388b5f723fb4c22dfe6cd4375a05a07476444d5819985007e34",
70, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "0026959946667150639794667015087019630673557916260026308143510066298881" */
70, /* Eol */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D", /* "0026959946667150639794667015087019625940457807714424391721682722368061" */
224, /* key_len */
9,
8,
3,
CURVE_GF_P
},
{
/* NIST: Curve P-256 : y^2=x^3-ax+b (mod p) */
CURVE_P_256,
64, /* Echar */
"FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC", /* "0000000000000000000000000000000000000000000000000000000000000003" */
"5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
"6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
"4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5",
78, /* Epl */
"FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF", /* "115792089210356248762697446949407573530086143415290314195533631308867097853951" */
78, /* Eol */
"FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551", /* "115792089210356248762697446949407573529996955224135760342422259061068512044369" */
256, /* key_len */
10,
5,
2,
CURVE_GF_P
},
{
/* NIST: Curve P-384 : y^2=x^3-ax+b (mod p) */
CURVE_P_384,
96, /* Echar */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC", /* "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003" */
"b3312fa7e23ee7e4988e056be3f82d19181d9c6efe8141120314088f5013875ac656398d8a2ed19d2a85c8edd3ec2aef",
"aa87ca22be8b05378eb1c71ef320ad746e1d3b628ba79b9859f741e082542a385502f25dbf55296c3a545e3872760ab7",
"3617de4a96262c6f5d9e98bf9292dc29f8f41dbd289a147ce9da3113b5f0b8c00a60b1ce1d7e819d7a431d7c90ea0e5f",
116, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF", /* "39402006196394479212279040100143613805079739270465446667948293404245721771496870329047266088258938001861606973112319" */
116, /* Eol */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973", /* "39402006196394479212279040100143613805079739270465446667946905279627659399113263569398956308152294913554433653942643" */
384, /* key_len */
12,
3,
2,
CURVE_GF_P
},
{
/* NIST: Curve P-521 : y^2=x^3-ax+b (mod p)*/
CURVE_P_521,
131, /* Echar */
"1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC", /* "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003" */
"051953eb9618e1c9a1f929a21a0b68540eea2da725b99b315f3b8b489918ef109e156193951ec7e937b1652c0bd3bb1bf073573df883d2c34f1ef451fd46b503f00",
"0c6858e06b70404e9cd9e3ecb662395b4429c648139053fb521f828af606b4d3dbaa14b5e77efe75928fe1dc127a2ffa8de3348b3c1856a429bf97e7e31c2e5bd66",
"11839296a789a3bc0045c8a5fb42c7d1bd998f54449579b446817afbd17273e662c97ee72995ef42640c550b9013fad0761353c7086a272c24088be94769fd16650",
157, /* Epl */
"1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", /* "6864797660130609714981900799081393217269435300143305409394463459185543183397656052122559640661454554977296311391480858037121987999716643812574028291115057151" */
157, /* Eol */
"1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409", /* "6864797660130609714981900799081393217269435300143305409394463459185543183397655394245057746333217197532963996371363321113864768612440380340372808892707005449" */
521, /* key_len */
32,
32,
32,
CURVE_GF_P
},
{
/* NIST: Curve B-163 : y^2+xy=x^3+ax^2+b */
CURVE_B_163,
41, /* Echar */
"00000000000000000000000000000000000000001",
"20a601907b8c953ca1481eb10512f78744a3205fd",
"3f0eba16286a2d57ea0991168d4994637e8343e36",
"0d51fbc6c71a0094fa2cdd545b11c5c0c797324f1",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
49, /* Eol */
"40000000000000000000292FE77E70C12A4234C33", /* "5846006549323611672814742442876390689256843201587" */
163, /* key_len */
7,
6,
3,
CURVE_GF_2M
},
{
/* NIST: Curve B-233 : y^2+xy=x^3+ax^2+b */
CURVE_B_233,
59, /* Echar 59 */
"00000000000000000000000000000000000000000000000000000000001",
"066647ede6c332c7f8c0923bb58213b333b20e9ce4281fe115f7d8f90ad",
"0fac9dfcbac8313bb2139f1bb755fef65bc391f8b36f8f8eb7371fd558b",
"1006a08a41903350678e58528bebf8a0beff867a7ca36716f7e01f81052",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
70, /* Eol */
"1000000000000000000000000000013E974E72F8A6922031D2603CFE0D7", /* "6901746346790563787434755862277025555839812737345013555379383634485463" */
233, /* key_len */
74,
74,
74,
CURVE_GF_2M
},
{
/* NIST: Curve B-283 : y^2+xy=x^3+ax^2+b */
CURVE_B_283,
71, /* Echar */
"00000000000000000000000000000000000000000000000000000000000000000000001",
"27b680ac8b8596da5a4af8a19a0303fca97fd7645309fa2a581485af6263e313b79a2f5",
"5f939258db7dd90e1934f8c70b0dfec2eed25b8557eac9c80e2e198f8cdbecd86b12053",
"3676854fe24141cb98fe6d4b20d02b4516ff702350eddb0826779c813f0df45be8112f4",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
85, /* Eol */
"3FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEF90399660FC938A90165B042A7CEFADB307", /* "7770675568902916283677847627294075626569625924376904889109196526770044277787378692871" */
283, /* key_len */
12,
7,
5,
CURVE_GF_2M
},
{
/* NIST: Curve B-409 : y^2+xy=x^3+ax^2+b */
CURVE_B_409,
103, /* Echar */
"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"021a5c2c8ee9feb5c4b9a753b7b476b7fd6422ef1f3dd674761fa99d6ac27c8a9a197b272822f6cd57a55aa4f50ae317b13545f",
"15d4860d088ddb3496b0c6064756260441cde4af1771d4db01ffe5b34e59703dc255a868a1180515603aeab60794e54bb7996a7",
"061b1cfab6be5f32bbfa78324ed106a7636b9c5a7bd198d0158aa4f5488d08f38514f1fdf4b4f40d2181b3681c364ba0273c706",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
123, /* Eol */
"10000000000000000000000000000000000000000000000000001E2AAD6A612F33307BE5FA47C3C9E052F838164CD37D9A21173", /* "661055968790248598951915308032771039828404682964281219284648798304157774827374805208143723762179110965979867288366567526771" */
409, /* key_len */
87,
87,
87,
CURVE_GF_2M
},
{
/* NIST: Curve B-571 : y^2+xy=x^3+ax^2+b */
CURVE_B_571,
143, /* Echar */
"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"2f40e7e2221f295de297117b7f3d62f5c6a97ffcb8ceff1cd6ba8ce4a9a18ad84ffabbd8efa59332be7ad6756a66e294afd185a78ff12aa520e4de739baca0c7ffeff7f2955727a",
"303001d34b856296c16c0d40d3cd7750a93d1d2955fa80aa5f40fc8db7b2abdbde53950f4c0d293cdd711a35b67fb1499ae60038614f1394abfa3b4c850d927e1e7769c8eec2d19",
"37bf27342da639b6dccfffeb73d69d78c6c27a6009cbbca1980f8533921e8a684423e43bab08a576291af8f461bb2a8b3531d2f0485c19b16e2f1516e23dd3c1a4827af1b8ac15b",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
172, /* Eol */
"3FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE661CE18FF55987308059B186823851EC7DD9CA1161DE93D5174D66E8382E9BB2FE84E47", /* "3864537523017258344695351890931987344298927329706434998657235251451519142289560424536143999389415773083133881121926944486246872462816813070234528288303332411393191105285703" */
571, /* key_len */
10,
5,
2,
CURVE_GF_2M
},
{
/* NIST: Curve K-163 : y^2+xy=x^3+ax^2+b */
CURVE_K_163,
41, /* Echar */
"00000000000000000000000000000000000000001",
"00000000000000000000000000000000000000001",
"2fe13c0537bbc11acaa07d793de4e6d5e5c94eee8",
"289070fb05d38ff58321f2e800536d538ccdaa3d9",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
49, /* Eol */
"4000000000000000000020108A2E0CC0D99F8A5EF", /* "5846006549323611672814741753598448348329118574063" */
163, /* key_len */
7,
6,
3,
CURVE_GF_2M
},
{
/* NIST: Curve K-233 : y^2+xy=x^3+ax^2+b */
CURVE_K_233,
59, /* Echar 59 */
"00000000000000000000000000000000000000000000000000000000000",
"00000000000000000000000000000000000000000000000000000000001",
"17232ba853a7e731af129f22ff4149563a419c26bf50a4c9d6eefad6126",
"1db537dece819b7f70f555a67c427a8cd9bf18aeb9b56e0c11056fae6a3",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
70, /* Eol */
"8000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF", /* "3450873173395281893717377931138512760570940988862252126328087024741343" */
233, /* key_len */
74,
74,
74,
CURVE_GF_2M
},
{
/* NIST: Curve K-283 : y^2+xy=x^3+ax^2+b */
CURVE_K_283,
71, /* Echar */
"00000000000000000000000000000000000000000000000000000000000000000000000",
"00000000000000000000000000000000000000000000000000000000000000000000001",
"503213f78ca44883f1a3b8162f188e553cd265f23c1567a16876913b0c2ac2458492836",
"1ccda380f1c9e318d90f95d07e5426fe87e45c0e8184698e45962364e34116177dd2259",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
85, /* Eol */
"1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE9AE2ED07577265DFF7F94451E061E163C61", /* "3885337784451458141838923813647037813284811733793061324295874997529815829704422603873" */
283, /* key_len */
12,
7,
5,
CURVE_GF_2M
},
{
/* NIST: Curve K-409 : y^2+xy=x^3+ax^2+b */
CURVE_K_409,
103, /* Echar */
"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"060f05f658f49c1ad3ab1890f7184210efd0987e307c84c27accfb8f9f67cc2c460189eb5aaaa62ee222eb1b35540cfe9023746",
"1e369050b7c4e42acba1dacbf04299c3460782f918ea427e6325165e9ea10e3da5f6c42e9c55215aa9ca27a5863ec48d8e0286b",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
123, /* Eol */
"7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE5F83B2D4EA20400EC4557D5ED3E3E7CA5B4B5C83B8E01E5FCF", /* "330527984395124299475957654016385519914202341482140609642324395022880711289249191050673258457777458014096366590617731358671" */
409, /* key_len */
87,
87,
87,
CURVE_GF_2M
},
{
/* NIST: Curve K-571 : y^2+xy=x^3+ax^2+b */
CURVE_K_571,
143, /* Echar */
"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"26eb7a859923fbc82189631f8103fe4ac9ca2970012d5d46024804801841ca44370958493b205e647da304db4ceb08cbbd1ba39494776fb988b47174dca88c7e2945283a01c8972",
"349dc807f4fbf374f4aeade3bca95314dd58cec9f307a54ffc61efc006d8a2c9d4979c0ac44aea74fbebbb9f772aedcb620b01a7ba7af1b320430c8591984f601cd4c143ef1c7a3",
68, /* Epl */
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001", /* "26959946667150639794667015087019630673557916260026308143510066298881" */
172, /* Eol */
"20000000000000000000000000000000000000000000000000000000000000000000000131850E1F19A63E4B391A8DB917F4138B630D84BE5D639381E91DEB45CFE778F637C1001", /* "1932268761508629172347675945465993672149463664853217499328617625725759571144780212268133978522706711834706712800825351461273674974066617311929682421617092503555733685276673" */
571, /* key_len */
10,
5,
2,
CURVE_GF_2M
},
};
#endif
static ECC_CURVE *pCurve;
static ECC_CURVE Curve_Copy;
static ECC_CURVE * get_curve(E_ECC_CURVE ecc_curve);
static int32_t ecc_init_curve(CRPT_T *crpt, E_ECC_CURVE ecc_curve);
static void run_ecc_codec(CRPT_T *crpt, uint32_t mode);
static char temp_hex_str[160];
volatile uint32_t g_ECC_done, g_ECCERR_done;
void ECC_DriverISR(CRPT_T *crpt)
{
if(crpt->INTSTS & CRPT_INTSTS_ECCIF_Msk)
{
g_ECC_done = 1UL;
crpt->INTSTS = CRPT_INTSTS_ECCIF_Msk;
/* printf("ECC done IRQ.\n"); */
}
if(crpt->INTSTS & CRPT_INTSTS_ECCEIF_Msk)
{
g_ECCERR_done = 1UL;
crpt->INTSTS = CRPT_INTSTS_ECCEIF_Msk;
/* printf("ECCERRIF is set!!\n"); */
}
}
#if ENABLE_DEBUG
static void dump_ecc_reg(char *str, uint32_t volatile regs[], int32_t count)
{
int32_t i;
printf("%s => ", str);
for(i = 0; i < count; i++)
{
printf("0x%08x ", regs[i]);
}
printf("\n");
}
#else
static void dump_ecc_reg(char *str, uint32_t volatile regs[], int32_t count) { }
#endif
static char ch2hex(char ch)
{
if(ch <= '9')
{
return ch - '0';
}
else if((ch <= 'z') && (ch >= 'a'))
{
return ch - 'a' + 10U;
}
else
{
return ch - 'A' + 10U;
}
}
static void Hex2Reg(char input[], uint32_t volatile reg[])
{
char hex;
int si, ri;
uint32_t i, val32;
si = (int)strlen(input) - 1;
ri = 0;
while(si >= 0)
{
val32 = 0UL;
for(i = 0UL; (i < 8UL) && (si >= 0); i++)
{
hex = ch2hex(input[si]);
val32 |= (uint32_t)hex << (i * 4UL);
si--;
}
reg[ri++] = val32;
}
}
static void Hex2RegEx(char input[], uint32_t volatile reg[], int shift)
{
uint32_t hex, carry;
int si, ri;
uint32_t i, val32;
si = (int)strlen(input) - 1;
ri = 0;
carry = 0U;
while(si >= 0)
{
val32 = 0UL;
for(i = 0UL; (i < 8UL) && (si >= 0); i++)
{
hex = (uint32_t)ch2hex(input[si]);
hex <<= shift;
val32 |= (uint32_t)((hex & 0xFU) | carry) << (i * 4UL);
carry = (hex >> 4) & 0xFU;
si--;
}
reg[ri++] = val32;
}
if(carry != 0U)
{
reg[ri] = carry;
}
}
/**
* @brief Extract specified nibble from an unsigned word in character format.
* For example:
* Suppose val32 is 0x786543210, get_Nth_nibble_char(val32, 3) will return a '3'.
* @param[in] val32 The input unsigned word
* @param[in] idx The Nth nibble to be extracted.
* @return The nibble in character format.
*/
static char get_Nth_nibble_char(uint32_t val32, uint32_t idx)
{
return hex_char_tbl[(val32 >> (idx * 4U)) & 0xfU ];
}
static void Reg2Hex(int32_t count, uint32_t volatile reg[], char output[])
{
int32_t idx, ri;
uint32_t i;
output[count] = 0U;
idx = count - 1;
for(ri = 0; idx >= 0; ri++)
{
for(i = 0UL; (i < 8UL) && (idx >= 0); i++)
{
output[idx] = get_Nth_nibble_char(reg[ri], i);
idx--;
}
}
}
static int32_t ecc_init_curve(CRPT_T *crpt, E_ECC_CURVE ecc_curve)
{
int32_t i, ret = 0;
pCurve = get_curve(ecc_curve);
if(pCurve == NULL)
{
CRPT_DBGMSG("Cannot find curve %d!!\n", ecc_curve);
ret = -1;
}
if(ret == 0)
{
for(i = 0; i < 18; i++)
{
crpt->ECC_A[i] = 0UL;
crpt->ECC_B[i] = 0UL;
crpt->ECC_X1[i] = 0UL;
crpt->ECC_Y1[i] = 0UL;
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Ea, crpt->ECC_A);
Hex2Reg(pCurve->Eb, crpt->ECC_B);
Hex2Reg(pCurve->Px, crpt->ECC_X1);
Hex2Reg(pCurve->Py, crpt->ECC_Y1);
CRPT_DBGMSG("Key length = %d\n", pCurve->key_len);
dump_ecc_reg("CRPT_ECC_CURVE_A", crpt->ECC_A, 10);
dump_ecc_reg("CRPT_ECC_CURVE_B", crpt->ECC_B, 10);
dump_ecc_reg("CRPT_ECC_POINT_X1", crpt->ECC_X1, 10);
dump_ecc_reg("CRPT_ECC_POINT_Y1", crpt->ECC_Y1, 10);
if(pCurve->GF == (int)CURVE_GF_2M)
{
crpt->ECC_N[0] = 0x1UL;
crpt->ECC_N[(pCurve->key_len) / 32] |= (1UL << ((pCurve->key_len) % 32));
crpt->ECC_N[(pCurve->irreducible_k1) / 32] |= (1UL << ((pCurve->irreducible_k1) % 32));
crpt->ECC_N[(pCurve->irreducible_k2) / 32] |= (1UL << ((pCurve->irreducible_k2) % 32));
crpt->ECC_N[(pCurve->irreducible_k3) / 32] |= (1UL << ((pCurve->irreducible_k3) % 32));
}
else
{
Hex2Reg(pCurve->Pp, crpt->ECC_N);
}
}
dump_ecc_reg("CRPT_ECC_CURVE_N", crpt->ECC_N, 10);
return ret;
}
static int get_nibble_value(char c)
{
char ch;
if((c >= '0') && (c <= '9'))
{
ch = '0';
return ((int)c - (int)ch);
}
if((c >= 'a') && (c <= 'f'))
{
ch = 'a';
return ((int)c - (int)ch + 10);
}
if((c >= 'A') && (c <= 'F'))
{
ch = 'A';
return ((int)c - (int)ch + 10);
}
return 0;
}
/**
* @brief Check if the private key is located in valid range of curve.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] ecc_curve The pre-defined ECC curve.
* @param[in] private_k The input private key.
* @return 1 Is valid.
* @return 0 Is not valid.
* @return -1 Invalid curve.
*/
int ECC_IsPrivateKeyValid(CRPT_T *crpt, E_ECC_CURVE ecc_curve, char private_k[])
{
uint32_t i;
pCurve = get_curve(ecc_curve);
if(pCurve == NULL)
{
return -1;
}
if(strlen(private_k) < strlen(pCurve->Eorder))
{
return 1;
}
if(strlen(private_k) > strlen(pCurve->Eorder))
{
return 0;
}
for(i = 0U; i < strlen(private_k); i++)
{
if(get_nibble_value(private_k[i]) < get_nibble_value(pCurve->Eorder[i]))
{
return 1;
}
if(get_nibble_value(private_k[i]) > get_nibble_value(pCurve->Eorder[i]))
{
return 0;
}
}
return 0;
}
/**
* @brief Given a private key and curve to generate the public key pair.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] private_k The input private key.
* @param[in] ecc_curve The pre-defined ECC curve.
* @param[out] public_k1 The output publick key 1.
* @param[out] public_k2 The output publick key 2.
* @return 0 Success.
* @return -1 "ecc_curve" value is invalid.
*/
int32_t ECC_GeneratePublicKey(CRPT_T *crpt, E_ECC_CURVE ecc_curve, char *private_k, char public_k1[], char public_k2[])
{
int32_t ret = 0, i;
uint32_t u32Tmp;
if(ecc_init_curve(crpt, ecc_curve) != 0)
{
ret = -1;
}
if(ret == 0)
{
for(i = 0; i < 18; i++)
{
crpt->ECC_K[i] = 0UL;
}
Hex2Reg(private_k, crpt->ECC_K);
/* set FSEL (Field selection) */
if(pCurve->GF == (int)CURVE_GF_2M)
{
crpt->ECC_CTL = 0UL;
}
else /* CURVE_GF_P */
{
crpt->ECC_CTL = CRPT_ECC_CTL_FSEL_Msk;
}
g_ECC_done = g_ECCERR_done = 0UL;
crpt->ECC_CTL |= ((uint32_t)pCurve->key_len << CRPT_ECC_CTL_CURVEM_Pos) |
ECCOP_POINT_MUL | CRPT_ECC_CTL_START_Msk;
do
{
u32Tmp = g_ECC_done;
u32Tmp |= g_ECCERR_done;
}
while(u32Tmp == 0UL);
Reg2Hex(pCurve->Echar, crpt->ECC_X1, public_k1);
Reg2Hex(pCurve->Echar, crpt->ECC_Y1, public_k2);
}
return ret;
}
/**
* @brief Given a curve parameter, the other party's public key, and one's own private key to generate the secret Z.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] ecc_curve The pre-defined ECC curve.
* @param[in] private_k One's own private key.
* @param[in] public_k1 The other party's publick key 1.
* @param[in] public_k2 The other party's publick key 2.
* @param[out] secret_z The ECC CDH secret Z.
* @return 0 Success.
* @return -1 "ecc_curve" value is invalid.
*/
int32_t ECC_GenerateSecretZ(CRPT_T *crpt, E_ECC_CURVE ecc_curve, char *private_k, char public_k1[], char public_k2[], char secret_z[])
{
int32_t i, ret = 0;
uint32_t u32Tmp;
if(ecc_init_curve(crpt, ecc_curve) != 0)
{
ret = -1;
}
if(ret == 0)
{
for(i = 0; i < 18; i++)
{
crpt->ECC_K[i] = 0UL;
crpt->ECC_X1[i] = 0UL;
crpt->ECC_Y1[i] = 0UL;
}
if((ecc_curve == CURVE_B_163) || (ecc_curve == CURVE_B_233) || (ecc_curve == CURVE_B_283) ||
(ecc_curve == CURVE_B_409) || (ecc_curve == CURVE_B_571) || (ecc_curve == CURVE_K_163))
{
Hex2RegEx(private_k, crpt->ECC_K, 1);
}
else if((ecc_curve == CURVE_K_233) || (ecc_curve == CURVE_K_283) ||
(ecc_curve == CURVE_K_409) || (ecc_curve == CURVE_K_571))
{
Hex2RegEx(private_k, crpt->ECC_K, 2);
}
else
{
Hex2Reg(private_k, crpt->ECC_K);
}
Hex2Reg(public_k1, crpt->ECC_X1);
Hex2Reg(public_k2, crpt->ECC_Y1);
/* set FSEL (Field selection) */
if(pCurve->GF == (int)CURVE_GF_2M)
{
crpt->ECC_CTL = 0UL;
}
else /* CURVE_GF_P */
{
crpt->ECC_CTL = CRPT_ECC_CTL_FSEL_Msk;
}
g_ECC_done = g_ECCERR_done = 0UL;
crpt->ECC_CTL |= ((uint32_t)pCurve->key_len << CRPT_ECC_CTL_CURVEM_Pos) |
ECCOP_POINT_MUL | CRPT_ECC_CTL_START_Msk;
do
{
u32Tmp = g_ECC_done;
u32Tmp |= g_ECCERR_done;
}
while(u32Tmp == 0UL);
Reg2Hex(pCurve->Echar, crpt->ECC_X1, secret_z);
}
return ret;
}
static void run_ecc_codec(CRPT_T *crpt, uint32_t mode)
{
uint32_t u32Tmp;
if((mode & CRPT_ECC_CTL_ECCOP_Msk) == ECCOP_MODULE)
{
crpt->ECC_CTL = CRPT_ECC_CTL_FSEL_Msk;
}
else
{
if(pCurve->GF == (int)CURVE_GF_2M)
{
/* point */
crpt->ECC_CTL = 0UL;
}
else
{
/* CURVE_GF_P */
crpt->ECC_CTL = CRPT_ECC_CTL_FSEL_Msk;
}
}
g_ECC_done = g_ECCERR_done = 0UL;
crpt->ECC_CTL |= ((uint32_t)pCurve->key_len << CRPT_ECC_CTL_CURVEM_Pos) | mode | CRPT_ECC_CTL_START_Msk;
do
{
u32Tmp = g_ECC_done;
u32Tmp |= g_ECCERR_done;
}
while(u32Tmp == 0UL);
while(crpt->ECC_STS & CRPT_ECC_STS_BUSY_Msk) { }
}
/**
* @brief ECDSA digital signature generation.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] ecc_curve The pre-defined ECC curve.
* @param[in] message The hash value of source context.
* @param[in] d The private key.
* @param[in] k The selected random integer.
* @param[out] R R of the (R,S) pair digital signature
* @param[out] S S of the (R,S) pair digital signature
* @return 0 Success.
* @return -1 "ecc_curve" value is invalid.
*/
int32_t ECC_GenerateSignature(CRPT_T *crpt, E_ECC_CURVE ecc_curve, char *message,
char *d, char *k, char *R, char *S)
{
uint32_t volatile temp_result1[18], temp_result2[18];
int32_t i, ret = 0;
if(ecc_init_curve(crpt, ecc_curve) != 0)
{
ret = -1;
}
if(ret == 0)
{
/*
* 1. Calculate e = HASH(m), where HASH is a cryptographic hashing algorithm, (i.e. SHA-1)
* (1) Use SHA to calculate e
*/
/* 2. Select a random integer k form [1, n-1]
* (1) Notice that n is order, not prime modulus or irreducible polynomial function
*/
/*
* 3. Compute r = x1 (mod n), where (x1, y1) = k * G. If r = 0, go to step 2
* (1) Write the curve parameter A, B, and curve length M to corresponding registers
* (2) Write the prime modulus or irreducible polynomial function to N registers according
* (3) Write the point G(x, y) to X1, Y1 registers
* (4) Write the random integer k to K register
* (5) Set ECCOP(CRPT_ECC_CTL[10:9]) to 00
* (6) Set FSEL(CRPT_ECC_CTL[8]) according to used curve of prime field or binary field
* (7) Set START(CRPT_ECC_CTL[0]) to 1
* (8) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (9) Write the curve order and curve length to N ,M registers according
* (10) Write 0x0 to Y1 registers
* (11) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (12) Set MOPOP(CRPT_ECC_CTL[12:11]) to 10
* (13) Set START(CRPT_ECC_CTL[0]) to 1 *
* (14) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (15) Read X1 registers to get r
*/
/* 3-(4) Write the random integer k to K register */
for(i = 0; i < 18; i++)
{
crpt->ECC_K[i] = 0UL;
}
Hex2Reg(k, crpt->ECC_K);
run_ecc_codec(crpt, ECCOP_POINT_MUL);
/* 3-(9) Write the curve order to N registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 3-(10) Write 0x0 to Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = 0UL;
}
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_ADD);
/* 3-(15) Read X1 registers to get r */
for(i = 0; i < 18; i++)
{
temp_result1[i] = crpt->ECC_X1[i];
}
Reg2Hex(pCurve->Echar, temp_result1, R);
/*
* 4. Compute s = k ? 1 ¡Ñ (e + d ¡Ñ r)(mod n). If s = 0, go to step 2
* (1) Write the curve order to N registers according
* (2) Write 0x1 to Y1 registers
* (3) Write the random integer k to X1 registers according
* (4) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (5) Set MOPOP(CRPT_ECC_CTL[12:11]) to 00
* (6) Set START(CRPT_ECC_CTL[0]) to 1
* (7) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (8) Read X1 registers to get k^-1
* (9) Write the curve order and curve length to N ,M registers
* (10) Write r, d to X1, Y1 registers
* (11) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (12) Set MOPOP(CRPT_ECC_CTL[12:11]) to 01
* (13) Set START(CRPT_ECC_CTL[0]) to 1
* (14) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (15) Write the curve order to N registers
* (16) Write e to Y1 registers
* (17) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (18) Set MOPOP(CRPT_ECC_CTL[12:11]) to 10
* (19) Set START(CRPT_ECC_CTL[0]) to 1
* (20) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (21) Write the curve order and curve length to N ,M registers
* (22) Write k^-1 to Y1 registers
* (23) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (24) Set MOPOP(CRPT_ECC_CTL[12:11]) to 01
* (25) Set START(CRPT_ECC_CTL[0]) to 1
* (26) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (27) Read X1 registers to get s
*/
/* S/W: GFp_add_mod_order(pCurve->key_len+2, 0, x1, a, R); */
/* 4-(1) Write the curve order to N registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 4-(2) Write 0x1 to Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = 0UL;
}
crpt->ECC_Y1[0] = 0x1UL;
/* 4-(3) Write the random integer k to X1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = 0UL;
}
Hex2Reg(k, crpt->ECC_X1);
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_DIV);
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, crpt->ECC_X1, temp_hex_str);
CRPT_DBGMSG("(7) output = %s\n", temp_hex_str);
#endif
/* 4-(8) Read X1 registers to get k^-1 */
for(i = 0; i < 18; i++)
{
temp_result2[i] = crpt->ECC_X1[i];
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, temp_result2, temp_hex_str);
CRPT_DBGMSG("k^-1 = %s\n", temp_hex_str);
#endif
/* 4-(9) Write the curve order and curve length to N ,M registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 4-(10) Write r, d to X1, Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = temp_result1[i];
}
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = 0UL;
}
Hex2Reg(d, crpt->ECC_Y1);
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_MUL);
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, crpt->ECC_X1, temp_hex_str);
CRPT_DBGMSG("(14) output = %s\n", temp_hex_str);
#endif
/* 4-(15) Write the curve order to N registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 4-(16) Write e to Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = 0UL;
}
Hex2Reg(message, crpt->ECC_Y1);
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_ADD);
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, crpt->ECC_X1, temp_hex_str);
CRPT_DBGMSG("(20) output = %s\n", temp_hex_str);
#endif
/* 4-(21) Write the curve order and curve length to N ,M registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 4-(22) Write k^-1 to Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = temp_result2[i];
}
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_MUL);
/* 4-(27) Read X1 registers to get s */
for(i = 0; i < 18; i++)
{
temp_result2[i] = crpt->ECC_X1[i];
}
Reg2Hex(pCurve->Echar, temp_result2, S);
} /* ret == 0 */
return ret;
}
/**
* @brief ECDSA dogotal signature verification.
* @param[in] crpt The pointer of CRYPTO module
* @param[in] ecc_curve The pre-defined ECC curve.
* @param[in] message The hash value of source context.
* @param[in] public_k1 The public key 1.
* @param[in] public_k2 The public key 2.
* @param[in] R R of the (R,S) pair digital signature
* @param[in] S S of the (R,S) pair digital signature
* @return 0 Success.
* @return -1 "ecc_curve" value is invalid.
* @return -2 Verification failed.
*/
int32_t ECC_VerifySignature(CRPT_T *crpt, E_ECC_CURVE ecc_curve, char *message,
char *public_k1, char *public_k2, char *R, char *S)
{
uint32_t temp_result1[18], temp_result2[18];
uint32_t temp_x[18], temp_y[18];
int32_t i, ret = 0;
/*
* 1. Verify that r and s are integers in the interval [1, n-1]. If not, the signature is invalid
* 2. Compute e = HASH (m), where HASH is the hashing algorithm in signature generation
* (1) Use SHA to calculate e
*/
/*
* 3. Compute w = s^-1 (mod n)
* (1) Write the curve order to N registers
* (2) Write 0x1 to Y1 registers
* (3) Write s to X1 registers
* (4) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (5) Set MOPOP(CRPT_ECC_CTL[12:11]) to 00
* (6) Set FSEL(CRPT_ECC_CTL[8]) according to used curve of prime field or binary field
* (7) Set START(CRPT_ECC_CTL[0]) to 1
* (8) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (9) Read X1 registers to get w
*/
if(ecc_init_curve(crpt, ecc_curve) != 0)
{
ret = -1;
}
if(ret == 0)
{
/* 3-(1) Write the curve order to N registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 3-(2) Write 0x1 to Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = 0UL;
}
crpt->ECC_Y1[0] = 0x1UL;
/* 3-(3) Write s to X1 registers */
for(i = 0; i < 18; i++)
{
CRPT->ECC_X1[i] = 0UL;
}
Hex2Reg(S, crpt->ECC_X1);
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_DIV);
/* 3-(9) Read X1 registers to get w */
for(i = 0; i < 18; i++)
{
temp_result2[i] = crpt->ECC_X1[i];
}
#if ENABLE_DEBUG
CRPT_DBGMSG("e = %s\n", message);
Reg2Hex(pCurve->Echar, temp_result2, temp_hex_str);
CRPT_DBGMSG("w = %s\n", temp_hex_str);
CRPT_DBGMSG("o = %s (order)\n", pCurve->Eorder);
#endif
/*
* 4. Compute u1 = e ¡Ñ w (mod n) and u2 = r ¡Ñ w (mod n)
* (1) Write the curve order and curve length to N ,M registers
* (2) Write e, w to X1, Y1 registers
* (3) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (4) Set MOPOP(CRPT_ECC_CTL[12:11]) to 01
* (5) Set START(CRPT_ECC_CTL[0]) to 1
* (6) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (7) Read X1 registers to get u1
* (8) Write the curve order and curve length to N ,M registers
* (9) Write r, w to X1, Y1 registers
* (10) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (11) Set MOPOP(CRPT_ECC_CTL[12:11]) to 01
* (12) Set START(CRPT_ECC_CTL[0]) to 1
* (13) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (14) Read X1 registers to get u2
*/
/* 4-(1) Write the curve order and curve length to N ,M registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 4-(2) Write e, w to X1, Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = 0UL;
}
Hex2Reg(message, crpt->ECC_X1);
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = temp_result2[i];
}
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_MUL);
/* 4-(7) Read X1 registers to get u1 */
for(i = 0; i < 18; i++)
{
temp_result1[i] = crpt->ECC_X1[i];
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, temp_result1, temp_hex_str);
CRPT_DBGMSG("u1 = %s\n", temp_hex_str);
#endif
/* 4-(8) Write the curve order and curve length to N ,M registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/* 4-(9) Write r, w to X1, Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = 0UL;
}
Hex2Reg(R, crpt->ECC_X1);
for(i = 0; i < 18; i++)
{
crpt->ECC_Y1[i] = temp_result2[i];
}
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_MUL);
/* 4-(14) Read X1 registers to get u2 */
for(i = 0; i < 18; i++)
{
temp_result2[i] = crpt->ECC_X1[i];
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, temp_result2, temp_hex_str);
CRPT_DBGMSG("u2 = %s\n", temp_hex_str);
#endif
/*
* 5. Compute X¡¦ (x1¡¦, y1¡¦) = u1 * G + u2 * Q
* (1) Write the curve parameter A, B, N, and curve length M to corresponding registers
* (2) Write the point G(x, y) to X1, Y1 registers
* (3) Write u1 to K registers
* (4) Set ECCOP(CRPT_ECC_CTL[10:9]) to 00
* (5) Set START(CRPT_ECC_CTL[0]) to 1
* (6) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (7) Read X1, Y1 registers to get u1*G
* (8) Write the curve parameter A, B, N, and curve length M to corresponding registers
* (9) Write the public key Q(x,y) to X1, Y1 registers
* (10) Write u2 to K registers
* (11) Set ECCOP(CRPT_ECC_CTL[10:9]) to 00
* (12) Set START(CRPT_ECC_CTL[0]) to 1
* (13) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (14) Write the curve parameter A, B, N, and curve length M to corresponding registers
* (15) Write the result data u1*G to X2, Y2 registers
* (16) Set ECCOP(CRPT_ECC_CTL[10:9]) to 10
* (17) Set START(CRPT_ECC_CTL[0]) to 1
* (18) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (19) Read X1, Y1 registers to get X¡¦(x1¡¦, y1¡¦)
* (20) Write the curve order and curve length to N ,M registers
* (21) Write x1¡¦ to X1 registers
* (22) Write 0x0 to Y1 registers
* (23) Set ECCOP(CRPT_ECC_CTL[10:9]) to 01
* (24) Set MOPOP(CRPT_ECC_CTL[12:11]) to 10
* (25) Set START(CRPT_ECC_CTL[0]) to 1
* (26) Wait for BUSY(CRPT_ECC_STS[0]) be cleared
* (27) Read X1 registers to get x1¡¦ (mod n)
*
* 6. The signature is valid if x1¡¦ = r, otherwise it is invalid
*/
/*
* (1) Write the curve parameter A, B, N, and curve length M to corresponding registers
* (2) Write the point G(x, y) to X1, Y1 registers
*/
ecc_init_curve(crpt, ecc_curve);
/* (3) Write u1 to K registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_K[i] = temp_result1[i];
}
run_ecc_codec(crpt, ECCOP_POINT_MUL);
/* (7) Read X1, Y1 registers to get u1*G */
for(i = 0; i < 18; i++)
{
temp_x[i] = crpt->ECC_X1[i];
temp_y[i] = crpt->ECC_Y1[i];
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, temp_x, temp_hex_str);
CRPT_DBGMSG("5-(7) u1*G, x = %s\n", temp_hex_str);
Reg2Hex(pCurve->Echar, temp_y, temp_hex_str);
CRPT_DBGMSG("5-(7) u1*G, y = %s\n", temp_hex_str);
#endif
/* (8) Write the curve parameter A, B, N, and curve length M to corresponding registers */
ecc_init_curve(crpt, ecc_curve);
/* (9) Write the public key Q(x,y) to X1, Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = 0UL;
crpt->ECC_Y1[i] = 0UL;
}
Hex2Reg(public_k1, crpt->ECC_X1);
Hex2Reg(public_k2, crpt->ECC_Y1);
/* (10) Write u2 to K registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_K[i] = temp_result2[i];
}
run_ecc_codec(crpt, ECCOP_POINT_MUL);
for(i = 0; i < 18; i++)
{
temp_result1[i] = crpt->ECC_X1[i];
temp_result2[i] = crpt->ECC_Y1[i];
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, temp_result1, temp_hex_str);
CRPT_DBGMSG("5-(13) u2*Q, x = %s\n", temp_hex_str);
Reg2Hex(pCurve->Echar, temp_result2, temp_hex_str);
CRPT_DBGMSG("5-(13) u2*Q, y = %s\n", temp_hex_str);
#endif
/* (14) Write the curve parameter A, B, N, and curve length M to corresponding registers */
ecc_init_curve(crpt, ecc_curve);
/* Write the result data u2*Q to X1, Y1 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = temp_result1[i];
crpt->ECC_Y1[i] = temp_result2[i];
}
/* (15) Write the result data u1*G to X2, Y2 registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_X2[i] = temp_x[i];
crpt->ECC_Y2[i] = temp_y[i];
}
run_ecc_codec(crpt, ECCOP_POINT_ADD);
/* (19) Read X1, Y1 registers to get X¡¦(x1¡¦, y1¡¦) */
for(i = 0; i < 18; i++)
{
temp_x[i] = crpt->ECC_X1[i];
temp_y[i] = crpt->ECC_Y1[i];
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, temp_x, temp_hex_str);
CRPT_DBGMSG("5-(19) x' = %s\n", temp_hex_str);
Reg2Hex(pCurve->Echar, temp_y, temp_hex_str);
CRPT_DBGMSG("5-(19) y' = %s\n", temp_hex_str);
#endif
/* (20) Write the curve order and curve length to N ,M registers */
for(i = 0; i < 18; i++)
{
crpt->ECC_N[i] = 0UL;
}
Hex2Reg(pCurve->Eorder, crpt->ECC_N);
/*
* (21) Write x1¡¦ to X1 registers
* (22) Write 0x0 to Y1 registers
*/
for(i = 0; i < 18; i++)
{
crpt->ECC_X1[i] = temp_x[i];
crpt->ECC_Y1[i] = 0UL;
}
#if ENABLE_DEBUG
Reg2Hex(pCurve->Echar, crpt->ECC_X1, temp_hex_str);
CRPT_DBGMSG("5-(21) x' = %s\n", temp_hex_str);
Reg2Hex(pCurve->Echar, crpt->ECC_Y1, temp_hex_str);
CRPT_DBGMSG("5-(22) y' = %s\n", temp_hex_str);
#endif
run_ecc_codec(crpt, ECCOP_MODULE | MODOP_ADD);
/* (27) Read X1 registers to get x1¡¦ (mod n) */
Reg2Hex(pCurve->Echar, crpt->ECC_X1, temp_hex_str);
CRPT_DBGMSG("5-(27) x1' (mod n) = %s\n", temp_hex_str);
/* 6. The signature is valid if x1¡¦ = r, otherwise it is invalid */
/* Compare with test pattern to check if r is correct or not */
if(strcasecmp(temp_hex_str, R) != 0)
{
CRPT_DBGMSG("x1' (mod n) != R Test filed!!\n");
CRPT_DBGMSG("Signature R [%s] is not matched with expected R [%s]!\n", temp_hex_str, R);
ret = -2;
}
} /* ret == 0 */
return ret;
}
#if XOM_SUPPORT // To support XOM ready curve table
int32_t CurveCpy(unsigned int *p32, E_ECC_CURVE id)
{
int32_t i;
switch(id)
{
case CURVE_P_192:
p32[ 0] = 0x00000000;
p32[ 1] = 0x00000030;
for(i = 2; i <= 8; i++)
p32[i] = 0x46464646;
p32[ 9] = 0x45464646;
p32[ 10] = 0x46464646;
p32[ 11] = 0x46464646;
p32[ 12] = 0x46464646;
p32[ 13] = 0x43464646;
for(i = 14; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x31323436;
p32[ 39] = 0x39313530;
p32[ 40] = 0x63393565;
p32[ 41] = 0x37653038;
p32[ 42] = 0x37616630;
p32[ 43] = 0x62613965;
p32[ 44] = 0x34323237;
p32[ 45] = 0x39343033;
p32[ 46] = 0x38626566;
p32[ 47] = 0x63656564;
p32[ 48] = 0x36343163;
p32[ 49] = 0x31623962;
for(i = 50; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x64383831;
p32[ 75] = 0x65303861;
p32[ 76] = 0x30333062;
p32[ 77] = 0x36663039;
p32[ 78] = 0x66626337;
p32[ 79] = 0x62653032;
p32[ 80] = 0x31613334;
p32[ 81] = 0x30303838;
p32[ 82] = 0x66663466;
p32[ 83] = 0x64666130;
p32[ 84] = 0x66663238;
p32[ 85] = 0x32313031;
for(i = 86; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x39313730;
p32[111] = 0x35396232;
p32[112] = 0x38636666;
p32[113] = 0x38376164;
p32[114] = 0x30313336;
p32[115] = 0x64653131;
p32[116] = 0x34326236;
p32[117] = 0x35646463;
p32[118] = 0x39663337;
p32[119] = 0x31613737;
p32[120] = 0x39376531;
p32[121] = 0x31313834;
for(i = 122; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x0000003a;
for(i = 147; i <= 153; i++)
p32[i] = 0x46464646;
p32[154] = 0x45464646;
for(i = 155; i <= 158; i++)
p32[i] = 0x46464646;
for(i = 159; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x0000003a;
for(i = 192; i <= 197; i++)
p32[i] = 0x46464646;
p32[198] = 0x45443939;
p32[199] = 0x36333846;
p32[200] = 0x42363431;
p32[201] = 0x31423943;
p32[202] = 0x32443442;
p32[203] = 0x31333832;
for(i = 204; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x000000c0;
p32[237] = 0x00000007;
p32[238] = 0x00000002;
p32[239] = 0x00000001;
p32[240] = 0x00000000;
break;
case CURVE_P_224:
p32[ 0] = 0x00000001;
p32[ 1] = 0x00000038;
for(i = 2; i <= 8; i++)
p32[i] = 0x46464646;
p32[ 9] = 0x45464646;
for(i = 10; i <= 14; i++)
p32[i] = 0x46464646;
p32[ 15] = 0x45464646;
for(i = 16; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x35303462;
p32[ 39] = 0x35386130;
p32[ 40] = 0x34306330;
p32[ 41] = 0x62613362;
p32[ 42] = 0x31343566;
p32[ 43] = 0x36353233;
p32[ 44] = 0x34343035;
p32[ 45] = 0x37623062;
p32[ 46] = 0x66623764;
p32[ 47] = 0x61623864;
p32[ 48] = 0x62303732;
p32[ 49] = 0x33343933;
p32[ 50] = 0x35353332;
p32[ 51] = 0x34626666;
for(i = 52; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x65303762;
p32[ 75] = 0x64626330;
p32[ 76] = 0x34626236;
p32[ 77] = 0x66376662;
p32[ 78] = 0x33313233;
p32[ 79] = 0x39623039;
p32[ 80] = 0x33306134;
p32[ 81] = 0x33643163;
p32[ 82] = 0x32633635;
p32[ 83] = 0x32323131;
p32[ 84] = 0x32333433;
p32[ 85] = 0x36643038;
p32[ 86] = 0x63353131;
p32[ 87] = 0x31326431;
for(i = 88; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x37336462;
p32[111] = 0x38383336;
p32[112] = 0x37663562;
p32[113] = 0x62663332;
p32[114] = 0x32326334;
p32[115] = 0x36656664;
p32[116] = 0x33346463;
p32[117] = 0x30613537;
p32[118] = 0x37306135;
p32[119] = 0x34363734;
p32[120] = 0x35643434;
p32[121] = 0x39393138;
p32[122] = 0x30303538;
p32[123] = 0x34336537;
for(i = 124; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000046;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000046;
for(i = 192; i <= 198; i++)
p32[i] = 0x46464646;
p32[199] = 0x32413631;
p32[200] = 0x38423045;
p32[201] = 0x45333046;
p32[202] = 0x44443331;
p32[203] = 0x35343932;
p32[204] = 0x43354335;
p32[205] = 0x44334132;
for(i = 206; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x000000e0;
p32[237] = 0x00000009;
p32[238] = 0x00000008;
p32[239] = 0x00000003;
p32[240] = 0x00000000;
break;
case CURVE_P_256:
p32[ 0] = 0x00000002;
p32[ 1] = 0x00000040;
p32[ 2] = 0x46464646;
p32[ 3] = 0x46464646;
p32[ 4] = 0x30303030;
p32[ 5] = 0x31303030;
for(i = 6; i <= 11; i++)
p32[i] = 0x30303030;
for(i = 12; i <= 16; i++)
p32[i] = 0x46464646;
p32[ 17] = 0x43464646;
for(i = 18; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x36636135;
p32[ 39] = 0x38643533;
p32[ 40] = 0x61336161;
p32[ 41] = 0x37653339;
p32[ 42] = 0x62653362;
p32[ 43] = 0x35356462;
p32[ 44] = 0x38393637;
p32[ 45] = 0x63623638;
p32[ 46] = 0x64313536;
p32[ 47] = 0x30623630;
p32[ 48] = 0x33356363;
p32[ 49] = 0x36663062;
p32[ 50] = 0x65636233;
p32[ 51] = 0x65336333;
p32[ 52] = 0x32643732;
p32[ 53] = 0x62343036;
for(i = 54; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x37316236;
p32[ 75] = 0x32663164;
p32[ 76] = 0x63323165;
p32[ 77] = 0x37343234;
p32[ 78] = 0x63623866;
p32[ 79] = 0x35653665;
p32[ 80] = 0x34613336;
p32[ 81] = 0x32663034;
p32[ 82] = 0x33303737;
p32[ 83] = 0x31386437;
p32[ 84] = 0x62656432;
p32[ 85] = 0x30613333;
p32[ 86] = 0x31613466;
p32[ 87] = 0x35343933;
p32[ 88] = 0x38393864;
p32[ 89] = 0x36393263;
for(i = 90; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x33656634;
p32[111] = 0x32653234;
p32[112] = 0x61316566;
p32[113] = 0x62396637;
p32[114] = 0x37656538;
p32[115] = 0x61346265;
p32[116] = 0x66306337;
p32[117] = 0x36316539;
p32[118] = 0x65636232;
p32[119] = 0x37353333;
p32[120] = 0x31336236;
p32[121] = 0x65636535;
p32[122] = 0x36626263;
p32[123] = 0x38363034;
p32[124] = 0x66623733;
p32[125] = 0x35663135;
for(i = 126; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x0000004e;
p32[147] = 0x46464646;
p32[148] = 0x46464646;
p32[149] = 0x30303030;
p32[150] = 0x31303030;
for(i = 151; i <= 156; i++)
p32[i] = 0x30303030;
for(i = 157; i <= 162; i++)
p32[i] = 0x46464646;
for(i = 163; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x0000004e;
p32[192] = 0x46464646;
p32[193] = 0x46464646;
p32[194] = 0x30303030;
p32[195] = 0x30303030;
for(i = 196; i <= 199; i++)
p32[i] = 0x46464646;
p32[200] = 0x36454342;
p32[201] = 0x44414146;
p32[202] = 0x37313741;
p32[203] = 0x34384539;
p32[204] = 0x39423346;
p32[205] = 0x32434143;
p32[206] = 0x33364346;
p32[207] = 0x31353532;
for(i = 208; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x00000100;
p32[237] = 0x0000000a;
p32[238] = 0x00000005;
p32[239] = 0x00000002;
p32[240] = 0x00000000;
break;
case CURVE_P_384:
p32[ 0] = 0x00000003;
p32[ 1] = 0x00000060;
for(i = 2; i <= 16; i++)
p32[i] = 0x46464646;
p32[ 17] = 0x45464646;
p32[ 18] = 0x46464646;
p32[ 19] = 0x46464646;
for(i = 20; i <= 23; i++)
p32[i] = 0x30303030;
p32[ 24] = 0x46464646;
p32[ 25] = 0x43464646;
for(i = 26; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x31333362;
p32[ 39] = 0x37616632;
p32[ 40] = 0x65333265;
p32[ 41] = 0x34653765;
p32[ 42] = 0x65383839;
p32[ 43] = 0x62363530;
p32[ 44] = 0x38663365;
p32[ 45] = 0x39316432;
p32[ 46] = 0x64313831;
p32[ 47] = 0x65366339;
p32[ 48] = 0x31386566;
p32[ 49] = 0x32313134;
p32[ 50] = 0x34313330;
p32[ 51] = 0x66383830;
p32[ 52] = 0x33313035;
p32[ 53] = 0x61353738;
p32[ 54] = 0x36353663;
p32[ 55] = 0x64383933;
p32[ 56] = 0x65326138;
p32[ 57] = 0x64393164;
p32[ 58] = 0x35386132;
p32[ 59] = 0x64653863;
p32[ 60] = 0x63653364;
p32[ 61] = 0x66656132;
for(i = 62; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x37386161;
p32[ 75] = 0x32326163;
p32[ 76] = 0x62386562;
p32[ 77] = 0x37333530;
p32[ 78] = 0x31626538;
p32[ 79] = 0x65313763;
p32[ 80] = 0x30323366;
p32[ 81] = 0x34376461;
p32[ 82] = 0x64316536;
p32[ 83] = 0x32366233;
p32[ 84] = 0x37616238;
p32[ 85] = 0x38396239;
p32[ 86] = 0x37663935;
p32[ 87] = 0x30653134;
p32[ 88] = 0x34353238;
p32[ 89] = 0x38336132;
p32[ 90] = 0x32303535;
p32[ 91] = 0x64353266;
p32[ 92] = 0x35356662;
p32[ 93] = 0x63363932;
p32[ 94] = 0x34356133;
p32[ 95] = 0x38336535;
p32[ 96] = 0x36373237;
p32[ 97] = 0x37626130;
for(i = 98; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x37313633;
p32[111] = 0x61346564;
p32[112] = 0x36323639;
p32[113] = 0x66366332;
p32[114] = 0x65396435;
p32[115] = 0x66623839;
p32[116] = 0x32393239;
p32[117] = 0x39326364;
p32[118] = 0x34663866;
p32[119] = 0x64626431;
p32[120] = 0x61393832;
p32[121] = 0x63373431;
p32[122] = 0x61643965;
p32[123] = 0x33313133;
p32[124] = 0x30663562;
p32[125] = 0x30633862;
p32[126] = 0x30366130;
p32[127] = 0x65633162;
p32[128] = 0x65376431;
p32[129] = 0x64393138;
p32[130] = 0x33346137;
p32[131] = 0x63376431;
p32[132] = 0x61653039;
p32[133] = 0x66356530;
for(i = 134; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000074;
for(i = 147; i <= 161; i++)
p32[i] = 0x46464646;
p32[162] = 0x45464646;
p32[163] = 0x46464646;
p32[164] = 0x46464646;
for(i = 165; i <= 168; i++)
p32[i] = 0x30303030;
p32[169] = 0x46464646;
p32[170] = 0x46464646;
for(i = 171; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000074;
for(i = 192; i <= 203; i++)
p32[i] = 0x46464646;
p32[204] = 0x33363743;
p32[205] = 0x31384434;
p32[206] = 0x37333446;
p32[207] = 0x46444432;
p32[208] = 0x41313835;
p32[209] = 0x32424430;
p32[210] = 0x30423834;
p32[211] = 0x41373741;
p32[212] = 0x43454345;
p32[213] = 0x41363931;
p32[214] = 0x35434343;
p32[215] = 0x33373932;
for(i = 216; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x00000180;
p32[237] = 0x0000000c;
p32[238] = 0x00000003;
p32[239] = 0x00000002;
p32[240] = 0x00000000;
break;
case CURVE_P_521:
p32[ 0] = 0x00000004;
p32[ 1] = 0x00000083;
p32[ 2] = 0x46464631;
for(i = 3; i <= 33; i++)
p32[i] = 0x46464646;
p32[ 34] = 0x00434646;
p32[ 35] = 0x00000000;
p32[ 36] = 0x00000000;
p32[ 37] = 0x00000000;
p32[ 38] = 0x39313530;
p32[ 39] = 0x62653335;
p32[ 40] = 0x38313639;
p32[ 41] = 0x39633165;
p32[ 42] = 0x39663161;
p32[ 43] = 0x32613932;
p32[ 44] = 0x62306131;
p32[ 45] = 0x34353836;
p32[ 46] = 0x61656530;
p32[ 47] = 0x37616432;
p32[ 48] = 0x39623532;
p32[ 49] = 0x31336239;
p32[ 50] = 0x62336635;
p32[ 51] = 0x38346238;
p32[ 52] = 0x38313939;
p32[ 53] = 0x30316665;
p32[ 54] = 0x35316539;
p32[ 55] = 0x33393136;
p32[ 56] = 0x65313539;
p32[ 57] = 0x39653763;
p32[ 58] = 0x31623733;
p32[ 59] = 0x63323536;
p32[ 60] = 0x33646230;
p32[ 61] = 0x62316262;
p32[ 62] = 0x33373066;
p32[ 63] = 0x64333735;
p32[ 64] = 0x33383866;
p32[ 65] = 0x33633264;
p32[ 66] = 0x65316634;
p32[ 67] = 0x31353466;
p32[ 68] = 0x36346466;
p32[ 69] = 0x33303562;
p32[ 70] = 0x00303066;
p32[ 71] = 0x00000000;
p32[ 72] = 0x00000000;
p32[ 73] = 0x00000000;
p32[ 74] = 0x38366330;
p32[ 75] = 0x30653835;
p32[ 76] = 0x30376236;
p32[ 77] = 0x65343034;
p32[ 78] = 0x39646339;
p32[ 79] = 0x63653365;
p32[ 80] = 0x32363662;
p32[ 81] = 0x62353933;
p32[ 82] = 0x39323434;
p32[ 83] = 0x38343663;
p32[ 84] = 0x30393331;
p32[ 85] = 0x62663335;
p32[ 86] = 0x66313235;
p32[ 87] = 0x61383238;
p32[ 88] = 0x36303666;
p32[ 89] = 0x33643462;
p32[ 90] = 0x61616264;
p32[ 91] = 0x35623431;
p32[ 92] = 0x65373765;
p32[ 93] = 0x35376566;
p32[ 94] = 0x66383239;
p32[ 95] = 0x63643165;
p32[ 96] = 0x61373231;
p32[ 97] = 0x61666632;
p32[ 98] = 0x33656438;
p32[ 99] = 0x62383433;
p32[100] = 0x38316333;
p32[101] = 0x34613635;
p32[102] = 0x66623932;
p32[103] = 0x37653739;
p32[104] = 0x63313365;
p32[105] = 0x62356532;
p32[106] = 0x00363664;
p32[107] = 0x00000000;
p32[108] = 0x00000000;
p32[109] = 0x00000000;
p32[110] = 0x33383131;
p32[111] = 0x36393239;
p32[112] = 0x39383761;
p32[113] = 0x63623361;
p32[114] = 0x35343030;
p32[115] = 0x35613863;
p32[116] = 0x32346266;
p32[117] = 0x31643763;
p32[118] = 0x39396462;
p32[119] = 0x34356638;
p32[120] = 0x35393434;
p32[121] = 0x34623937;
p32[122] = 0x31383634;
p32[123] = 0x62666137;
p32[124] = 0x32373164;
p32[125] = 0x36653337;
p32[126] = 0x39633236;
p32[127] = 0x37656537;
p32[128] = 0x35393932;
p32[129] = 0x32346665;
p32[130] = 0x63303436;
p32[131] = 0x62303535;
p32[132] = 0x33313039;
p32[133] = 0x30646166;
p32[134] = 0x33313637;
p32[135] = 0x37633335;
p32[136] = 0x61363830;
p32[137] = 0x63323732;
p32[138] = 0x38303432;
p32[139] = 0x39656238;
p32[140] = 0x39363734;
p32[141] = 0x36316466;
p32[142] = 0x00303536;
p32[143] = 0x00000000;
p32[144] = 0x00000000;
p32[145] = 0x00000000;
p32[146] = 0x0000009d;
p32[147] = 0x46464631;
for(i = 148; i <= 178; i++)
p32[i] = 0x46464646;
p32[179] = 0x00464646;
for(i = 180; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x0000009d;
p32[192] = 0x46464631;
for(i = 193; i <= 207; i++)
p32[i] = 0x46464646;
p32[208] = 0x35414646;
p32[209] = 0x38363831;
p32[210] = 0x42333837;
p32[211] = 0x39463246;
p32[212] = 0x37423636;
p32[213] = 0x30434346;
p32[214] = 0x46383431;
p32[215] = 0x41393037;
p32[216] = 0x33304435;
p32[217] = 0x43354242;
p32[218] = 0x38384239;
p32[219] = 0x34433939;
p32[220] = 0x42454137;
p32[221] = 0x42463642;
p32[222] = 0x39453137;
p32[223] = 0x36383331;
p32[224] = 0x00393034;
for(i = 225; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x00000209;
p32[237] = 0x00000020;
p32[238] = 0x00000020;
p32[239] = 0x00000020;
p32[240] = 0x00000000;
break;
case CURVE_B_163:
p32[ 0] = 0x0000000a;
p32[ 1] = 0x00000029;
for(i = 2; i <= 11; i++)
p32[i] = 0x30303030;
p32[ 12] = 0x00000031;
for(i = 13; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x36613032;
p32[ 39] = 0x30393130;
p32[ 40] = 0x63386237;
p32[ 41] = 0x63333539;
p32[ 42] = 0x38343161;
p32[ 43] = 0x31626531;
p32[ 44] = 0x32313530;
p32[ 45] = 0x37383766;
p32[ 46] = 0x33613434;
p32[ 47] = 0x66353032;
p32[ 48] = 0x00000064;
for(i = 49; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x65306633;
p32[ 75] = 0x36316162;
p32[ 76] = 0x61363832;
p32[ 77] = 0x37356432;
p32[ 78] = 0x39306165;
p32[ 79] = 0x36313139;
p32[ 80] = 0x39346438;
p32[ 81] = 0x33363439;
p32[ 82] = 0x33386537;
p32[ 83] = 0x33653334;
p32[ 84] = 0x00000036;
for(i = 85; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x31356430;
p32[111] = 0x36636266;
p32[112] = 0x61313763;
p32[113] = 0x34393030;
p32[114] = 0x63326166;
p32[115] = 0x34356464;
p32[116] = 0x31316235;
p32[117] = 0x30633563;
p32[118] = 0x37393763;
p32[119] = 0x66343233;
p32[120] = 0x00000031;
for(i = 121; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000031;
p32[192] = 0x30303034;
for(i = 193; i <= 196; i++)
p32[i] = 0x30303030;
p32[197] = 0x46323932;
p32[198] = 0x45373745;
p32[199] = 0x31433037;
p32[200] = 0x32344132;
p32[201] = 0x33433433;
p32[202] = 0x00000033;
for(i = 203; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x000000a3;
p32[237] = 0x00000007;
p32[238] = 0x00000006;
p32[239] = 0x00000003;
p32[240] = 0x00000001;
break;
case CURVE_B_233:
p32[ 0] = 0x0000000b;
p32[ 1] = 0x0000003b;
for(i = 2; i <= 15; i++)
p32[i] = 0x30303030;
p32[ 16] = 0x00313030;
for(i = 17; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x36363630;
p32[ 39] = 0x64653734;
p32[ 40] = 0x33633665;
p32[ 41] = 0x37633233;
p32[ 42] = 0x30633866;
p32[ 43] = 0x62333239;
p32[ 44] = 0x32383562;
p32[ 45] = 0x33623331;
p32[ 46] = 0x32623333;
p32[ 47] = 0x63396530;
p32[ 48] = 0x38323465;
p32[ 49] = 0x31656631;
p32[ 50] = 0x37663531;
p32[ 51] = 0x39663864;
p32[ 52] = 0x00646130;
for(i = 53; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x63616630;
p32[ 75] = 0x63666439;
p32[ 76] = 0x38636162;
p32[ 77] = 0x62333133;
p32[ 78] = 0x33313262;
p32[ 79] = 0x62316639;
p32[ 80] = 0x35353762;
p32[ 81] = 0x36666566;
p32[ 82] = 0x33636235;
p32[ 83] = 0x38663139;
p32[ 84] = 0x66363362;
p32[ 85] = 0x65386638;
p32[ 86] = 0x37333762;
p32[ 87] = 0x35646631;
p32[ 88] = 0x00623835;
for(i = 89; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x36303031;
p32[111] = 0x61383061;
p32[112] = 0x30393134;
p32[113] = 0x30353333;
p32[114] = 0x65383736;
p32[115] = 0x32353835;
p32[116] = 0x62656238;
p32[117] = 0x30613866;
p32[118] = 0x66666562;
p32[119] = 0x61373638;
p32[120] = 0x33616337;
p32[121] = 0x36313736;
p32[122] = 0x30653766;
p32[123] = 0x31386631;
p32[124] = 0x00323530;
for(i = 125; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000046;
p32[192] = 0x30303031;
for(i = 193; i <= 198; i++)
p32[i] = 0x30303030;
p32[199] = 0x45333130;
p32[200] = 0x45343739;
p32[201] = 0x38463237;
p32[202] = 0x32393641;
p32[203] = 0x31333032;
p32[204] = 0x30363244;
p32[205] = 0x45464333;
p32[206] = 0x00374430;
for(i = 207; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x000000e9;
p32[237] = 0x0000004a;
p32[238] = 0x0000004a;
p32[239] = 0x0000004a;
p32[240] = 0x00000001;
break;
case CURVE_B_283:
p32[ 0] = 0x0000000c;
p32[ 1] = 0x00000047;
for(i = 2; i <= 18; i++)
p32[i] = 0x30303030;
p32[ 19] = 0x00313030;
for(i = 20; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x36623732;
p32[ 39] = 0x63613038;
p32[ 40] = 0x35386238;
p32[ 41] = 0x61643639;
p32[ 42] = 0x61346135;
p32[ 43] = 0x31613866;
p32[ 44] = 0x33306139;
p32[ 45] = 0x63663330;
p32[ 46] = 0x66373961;
p32[ 47] = 0x34363764;
p32[ 48] = 0x39303335;
p32[ 49] = 0x61326166;
p32[ 50] = 0x34313835;
p32[ 51] = 0x66613538;
p32[ 52] = 0x33363236;
p32[ 53] = 0x33313365;
p32[ 54] = 0x61393762;
p32[ 55] = 0x00356632;
for(i = 56; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x33396635;
p32[ 75] = 0x38353239;
p32[ 76] = 0x64376264;
p32[ 77] = 0x65303964;
p32[ 78] = 0x34333931;
p32[ 79] = 0x37633866;
p32[ 80] = 0x64306230;
p32[ 81] = 0x32636566;
p32[ 82] = 0x32646565;
p32[ 83] = 0x35386235;
p32[ 84] = 0x61653735;
p32[ 85] = 0x38633963;
p32[ 86] = 0x65326530;
p32[ 87] = 0x66383931;
p32[ 88] = 0x62646338;
p32[ 89] = 0x38646365;
p32[ 90] = 0x32316236;
p32[ 91] = 0x00333530;
for(i = 92; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x36373633;
p32[111] = 0x66343538;
p32[112] = 0x31343265;
p32[113] = 0x62633134;
p32[114] = 0x65663839;
p32[115] = 0x62346436;
p32[116] = 0x30643032;
p32[117] = 0x35346232;
p32[118] = 0x66663631;
p32[119] = 0x33323037;
p32[120] = 0x64653035;
p32[121] = 0x38306264;
p32[122] = 0x37373632;
p32[123] = 0x31386339;
p32[124] = 0x64306633;
p32[125] = 0x62353466;
p32[126] = 0x31313865;
p32[127] = 0x00346632;
for(i = 128; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000055;
p32[192] = 0x46464633;
for(i = 193; i <= 199; i++)
p32[i] = 0x46464646;
p32[200] = 0x45464646;
p32[201] = 0x33303946;
p32[202] = 0x36363939;
p32[203] = 0x39434630;
p32[204] = 0x39413833;
p32[205] = 0x35363130;
p32[206] = 0x32343042;
p32[207] = 0x45433741;
p32[208] = 0x42444146;
p32[209] = 0x00373033;
for(i = 210; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x0000011b;
p32[237] = 0x0000000c;
p32[238] = 0x00000007;
p32[239] = 0x00000005;
p32[240] = 0x00000001;
break;
case CURVE_B_409:
p32[ 0] = 0x0000000d;
p32[ 1] = 0x00000067;
for(i = 2; i <= 26; i++)
p32[i] = 0x30303030;
p32[ 27] = 0x00313030;
for(i = 28; i <= 37; i++)
p32[i] = 0x00000000;
p32[ 38] = 0x61313230;
p32[ 39] = 0x63326335;
p32[ 40] = 0x39656538;
p32[ 41] = 0x35626566;
p32[ 42] = 0x39623463;
p32[ 43] = 0x33353761;
p32[ 44] = 0x34623762;
p32[ 45] = 0x37623637;
p32[ 46] = 0x34366466;
p32[ 47] = 0x66653232;
p32[ 48] = 0x64336631;
p32[ 49] = 0x34373664;
p32[ 50] = 0x66313637;
p32[ 51] = 0x64393961;
p32[ 52] = 0x32636136;
p32[ 53] = 0x61386337;
p32[ 54] = 0x39316139;
p32[ 55] = 0x37326237;
p32[ 56] = 0x32323832;
p32[ 57] = 0x64633666;
p32[ 58] = 0x35613735;
p32[ 59] = 0x34616135;
p32[ 60] = 0x61303566;
p32[ 61] = 0x37313365;
p32[ 62] = 0x35333162;
p32[ 63] = 0x00663534;
for(i = 64; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x34643531;
p32[ 75] = 0x64303638;
p32[ 76] = 0x64383830;
p32[ 77] = 0x34336264;
p32[ 78] = 0x30623639;
p32[ 79] = 0x36303663;
p32[ 80] = 0x36353734;
p32[ 81] = 0x34303632;
p32[ 82] = 0x64633134;
p32[ 83] = 0x66613465;
p32[ 84] = 0x31373731;
p32[ 85] = 0x62643464;
p32[ 86] = 0x66663130;
p32[ 87] = 0x33623565;
p32[ 88] = 0x39356534;
p32[ 89] = 0x64333037;
p32[ 90] = 0x35353263;
p32[ 91] = 0x38363861;
p32[ 92] = 0x38313161;
p32[ 93] = 0x35313530;
p32[ 94] = 0x61333036;
p32[ 95] = 0x36626165;
p32[ 96] = 0x34393730;
p32[ 97] = 0x62343565;
p32[ 98] = 0x39393762;
p32[ 99] = 0x00376136;
for(i = 100; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x62313630;
p32[111] = 0x61666331;
p32[112] = 0x65623662;
p32[113] = 0x32336635;
p32[114] = 0x61666262;
p32[115] = 0x32333837;
p32[116] = 0x31646534;
p32[117] = 0x37613630;
p32[118] = 0x62363336;
p32[119] = 0x61356339;
p32[120] = 0x31646237;
p32[121] = 0x30643839;
p32[122] = 0x61383531;
p32[123] = 0x35663461;
p32[124] = 0x64383834;
p32[125] = 0x33663830;
p32[126] = 0x34313538;
p32[127] = 0x64663166;
p32[128] = 0x34623466;
p32[129] = 0x64303466;
p32[130] = 0x31383132;
p32[131] = 0x38363362;
p32[132] = 0x36336331;
p32[133] = 0x30616234;
p32[134] = 0x63333732;
p32[135] = 0x00363037;
for(i = 136; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x0000007b;
p32[192] = 0x30303031;
for(i = 193; i <= 204; i++)
p32[i] = 0x30303030;
p32[205] = 0x41324531;
p32[206] = 0x41364441;
p32[207] = 0x46323136;
p32[208] = 0x30333333;
p32[209] = 0x35454237;
p32[210] = 0x37344146;
p32[211] = 0x39433343;
p32[212] = 0x32353045;
p32[213] = 0x38333846;
p32[214] = 0x43343631;
p32[215] = 0x44373344;
p32[216] = 0x31324139;
p32[217] = 0x00333731;
for(i = 218; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x00000199;
p32[237] = 0x00000057;
p32[238] = 0x00000057;
p32[239] = 0x00000057;
p32[240] = 0x00000001;
break;
case CURVE_B_571:
p32[ 0] = 0x0000000e;
p32[ 1] = 0x0000008f;
for(i = 2; i <= 36; i++)
p32[i] = 0x30303030;
p32[ 37] = 0x00313030;
p32[ 38] = 0x30346632;
p32[ 39] = 0x32653765;
p32[ 40] = 0x66313232;
p32[ 41] = 0x64353932;
p32[ 42] = 0x37393265;
p32[ 43] = 0x62373131;
p32[ 44] = 0x64336637;
p32[ 45] = 0x35663236;
p32[ 46] = 0x39613663;
p32[ 47] = 0x63666637;
p32[ 48] = 0x65633862;
p32[ 49] = 0x63316666;
p32[ 50] = 0x61623664;
p32[ 51] = 0x34656338;
p32[ 52] = 0x31613961;
p32[ 53] = 0x38646138;
p32[ 54] = 0x61666634;
p32[ 55] = 0x38646262;
p32[ 56] = 0x35616665;
p32[ 57] = 0x32333339;
p32[ 58] = 0x61376562;
p32[ 59] = 0x35373664;
p32[ 60] = 0x36366136;
p32[ 61] = 0x34393265;
p32[ 62] = 0x31646661;
p32[ 63] = 0x37613538;
p32[ 64] = 0x31666638;
p32[ 65] = 0x35616132;
p32[ 66] = 0x34653032;
p32[ 67] = 0x33376564;
p32[ 68] = 0x63616239;
p32[ 69] = 0x37633061;
p32[ 70] = 0x66656666;
p32[ 71] = 0x32663766;
p32[ 72] = 0x37353539;
p32[ 73] = 0x00613732;
p32[ 74] = 0x30333033;
p32[ 75] = 0x33643130;
p32[ 76] = 0x35386234;
p32[ 77] = 0x36393236;
p32[ 78] = 0x63363163;
p32[ 79] = 0x30346430;
p32[ 80] = 0x64633364;
p32[ 81] = 0x30353737;
p32[ 82] = 0x64333961;
p32[ 83] = 0x39326431;
p32[ 84] = 0x61663535;
p32[ 85] = 0x61613038;
p32[ 86] = 0x30346635;
p32[ 87] = 0x64386366;
p32[ 88] = 0x32623762;
p32[ 89] = 0x62646261;
p32[ 90] = 0x33356564;
p32[ 91] = 0x66303539;
p32[ 92] = 0x64306334;
p32[ 93] = 0x63333932;
p32[ 94] = 0x31376464;
p32[ 95] = 0x35336131;
p32[ 96] = 0x66373662;
p32[ 97] = 0x39343162;
p32[ 98] = 0x36656139;
p32[ 99] = 0x38333030;
p32[100] = 0x66343136;
p32[101] = 0x34393331;
p32[102] = 0x61666261;
p32[103] = 0x63346233;
p32[104] = 0x64303538;
p32[105] = 0x65373239;
p32[106] = 0x37376531;
p32[107] = 0x38633936;
p32[108] = 0x32636565;
p32[109] = 0x00393164;
p32[110] = 0x66623733;
p32[111] = 0x34333732;
p32[112] = 0x36616432;
p32[113] = 0x36623933;
p32[114] = 0x66636364;
p32[115] = 0x62656666;
p32[116] = 0x36643337;
p32[117] = 0x38376439;
p32[118] = 0x32633663;
p32[119] = 0x30366137;
p32[120] = 0x62633930;
p32[121] = 0x31616362;
p32[122] = 0x66303839;
p32[123] = 0x33333538;
p32[124] = 0x65313239;
p32[125] = 0x38366138;
p32[126] = 0x33323434;
p32[127] = 0x62333465;
p32[128] = 0x38306261;
p32[129] = 0x36373561;
p32[130] = 0x61313932;
p32[131] = 0x34663866;
p32[132] = 0x62623136;
p32[133] = 0x62386132;
p32[134] = 0x31333533;
p32[135] = 0x30663264;
p32[136] = 0x63353834;
p32[137] = 0x31623931;
p32[138] = 0x66326536;
p32[139] = 0x36313531;
p32[140] = 0x64333265;
p32[141] = 0x31633364;
p32[142] = 0x32383461;
p32[143] = 0x31666137;
p32[144] = 0x63613862;
p32[145] = 0x00623531;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x000000ac;
p32[192] = 0x46464633;
for(i = 193; i <= 208; i++)
p32[i] = 0x46464646;
p32[209] = 0x45464646;
p32[210] = 0x43313636;
p32[211] = 0x46383145;
p32[212] = 0x39353546;
p32[213] = 0x30333738;
p32[214] = 0x39353038;
p32[215] = 0x36383142;
p32[216] = 0x38333238;
p32[217] = 0x43453135;
p32[218] = 0x39444437;
p32[219] = 0x31314143;
p32[220] = 0x45443136;
p32[221] = 0x35443339;
p32[222] = 0x44343731;
p32[223] = 0x38453636;
p32[224] = 0x45323833;
p32[225] = 0x32424239;
p32[226] = 0x34384546;
p32[227] = 0x00373445;
for(i = 228; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x0000023b;
p32[237] = 0x0000000a;
p32[238] = 0x00000005;
p32[239] = 0x00000002;
p32[240] = 0x00000001;
break;
case CURVE_K_163:
p32[ 0] = 0x00000005;
p32[ 1] = 0x00000029;
for(i = 2; i <= 11; i++)
p32[i] = 0x30303030;
p32[ 12] = 0x00000031;
for(i = 13; i <= 37; i++)
p32[i] = 0x00000000;
for(i = 38; i <= 47; i++)
p32[i] = 0x30303030;
p32[ 48] = 0x00000031;
for(i = 49; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x31656632;
p32[ 75] = 0x35306333;
p32[ 76] = 0x62623733;
p32[ 77] = 0x61313163;
p32[ 78] = 0x30616163;
p32[ 79] = 0x39376437;
p32[ 80] = 0x34656433;
p32[ 81] = 0x35643665;
p32[ 82] = 0x39633565;
p32[ 83] = 0x65656534;
p32[ 84] = 0x00000038;
for(i = 85; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x30393832;
p32[111] = 0x62663037;
p32[112] = 0x33643530;
p32[113] = 0x35666638;
p32[114] = 0x31323338;
p32[115] = 0x38653266;
p32[116] = 0x33353030;
p32[117] = 0x33356436;
p32[118] = 0x64636338;
p32[119] = 0x64336161;
p32[120] = 0x00000039;
for(i = 121; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000031;
p32[192] = 0x30303034;
for(i = 193; i <= 196; i++)
p32[i] = 0x30303030;
p32[197] = 0x30313032;
p32[198] = 0x45324138;
p32[199] = 0x30434330;
p32[200] = 0x46393944;
p32[201] = 0x45354138;
p32[202] = 0x00000046;
for(i = 203; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x000000a3;
p32[237] = 0x00000007;
p32[238] = 0x00000006;
p32[239] = 0x00000003;
p32[240] = 0x00000001;
break;
case CURVE_K_233:
p32[ 0] = 0x00000006;
p32[ 1] = 0x0000003b;
for(i = 2; i <= 15; i++)
p32[i] = 0x30303030;
p32[ 16] = 0x00303030;
for(i = 17; i <= 37; i++)
p32[i] = 0x00000000;
for(i = 38; i <= 51; i++)
p32[i] = 0x30303030;
p32[ 52] = 0x00313030;
for(i = 53; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x33323731;
p32[ 75] = 0x38616232;
p32[ 76] = 0x37613335;
p32[ 77] = 0x31333765;
p32[ 78] = 0x32316661;
p32[ 79] = 0x32326639;
p32[ 80] = 0x31346666;
p32[ 81] = 0x36353934;
p32[ 82] = 0x31346133;
p32[ 83] = 0x36326339;
p32[ 84] = 0x30356662;
p32[ 85] = 0x39633461;
p32[ 86] = 0x65653664;
p32[ 87] = 0x36646166;
p32[ 88] = 0x00363231;
for(i = 89; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x35626431;
p32[111] = 0x65643733;
p32[112] = 0x31386563;
p32[113] = 0x66376239;
p32[114] = 0x35663037;
p32[115] = 0x36613535;
p32[116] = 0x32346337;
p32[117] = 0x63386137;
p32[118] = 0x66623964;
p32[119] = 0x65613831;
p32[120] = 0x35623962;
p32[121] = 0x63306536;
p32[122] = 0x35303131;
p32[123] = 0x65616636;
p32[124] = 0x00336136;
for(i = 125; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000046;
p32[192] = 0x30303038;
for(i = 193; i <= 198; i++)
p32[i] = 0x30303030;
p32[199] = 0x44393630;
p32[200] = 0x39424235;
p32[201] = 0x43423531;
p32[202] = 0x45363444;
p32[203] = 0x41314246;
p32[204] = 0x31463544;
p32[205] = 0x42413337;
p32[206] = 0x00004644;
for(i = 207; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x000000e9;
p32[237] = 0x0000004a;
p32[238] = 0x0000004a;
p32[239] = 0x0000004a;
p32[240] = 0x00000001;
break;
case CURVE_K_283:
p32[ 0] = 0x00000007;
p32[ 1] = 0x00000047;
for(i = 2; i <= 18; i++)
p32[i] = 0x30303030;
p32[ 19] = 0x00303030;
for(i = 20; i <= 37; i++)
p32[i] = 0x00000000;
for(i = 38; i <= 54; i++)
p32[i] = 0x30303030;
p32[ 55] = 0x00313030;
for(i = 56; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x32333035;
p32[ 75] = 0x37663331;
p32[ 76] = 0x34616338;
p32[ 77] = 0x33383834;
p32[ 78] = 0x33613166;
p32[ 79] = 0x36313862;
p32[ 80] = 0x38316632;
p32[ 81] = 0x35356538;
p32[ 82] = 0x32646333;
p32[ 83] = 0x32663536;
p32[ 84] = 0x35316333;
p32[ 85] = 0x31613736;
p32[ 86] = 0x36373836;
p32[ 87] = 0x62333139;
p32[ 88] = 0x61326330;
p32[ 89] = 0x35343263;
p32[ 90] = 0x32393438;
p32[ 91] = 0x00363338;
for(i = 92; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x64636331;
p32[111] = 0x30383361;
p32[112] = 0x39633166;
p32[113] = 0x38313365;
p32[114] = 0x66303964;
p32[115] = 0x30643539;
p32[116] = 0x34356537;
p32[117] = 0x65663632;
p32[118] = 0x34653738;
p32[119] = 0x65306335;
p32[120] = 0x34383138;
p32[121] = 0x65383936;
p32[122] = 0x36393534;
p32[123] = 0x34363332;
p32[124] = 0x31343365;
p32[125] = 0x37313631;
p32[126] = 0x32646437;
p32[127] = 0x00393532;
for(i = 128; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x00000055;
p32[192] = 0x46464631;
for(i = 193; i <= 199; i++)
p32[i] = 0x46464646;
p32[200] = 0x45464646;
p32[201] = 0x32454139;
p32[202] = 0x37304445;
p32[203] = 0x32373735;
p32[204] = 0x46443536;
p32[205] = 0x39463746;
p32[206] = 0x31353434;
p32[207] = 0x31363045;
p32[208] = 0x33363145;
p32[209] = 0x00313643;
for(i = 210; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x0000011b;
p32[237] = 0x0000000c;
p32[238] = 0x00000007;
p32[239] = 0x00000005;
p32[240] = 0x00000001;
break;
case CURVE_K_409:
p32[ 0] = 0x00000008;
p32[ 1] = 0x00000067;
for(i = 2; i <= 26; i++)
p32[i] = 0x30303030;
p32[ 27] = 0x00303030;
for(i = 28; i <= 37; i++)
p32[i] = 0x00000000;
for(i = 38; i <= 62; i++)
p32[i] = 0x30303030;
p32[ 63] = 0x00313030;
for(i = 64; i <= 73; i++)
p32[i] = 0x00000000;
p32[ 74] = 0x66303630;
p32[ 75] = 0x36663530;
p32[ 76] = 0x34663835;
p32[ 77] = 0x61316339;
p32[ 78] = 0x62613364;
p32[ 79] = 0x30393831;
p32[ 80] = 0x38313766;
p32[ 81] = 0x30313234;
p32[ 82] = 0x30646665;
p32[ 83] = 0x65373839;
p32[ 84] = 0x63373033;
p32[ 85] = 0x32633438;
p32[ 86] = 0x63636137;
p32[ 87] = 0x66386266;
p32[ 88] = 0x37366639;
p32[ 89] = 0x63326363;
p32[ 90] = 0x31303634;
p32[ 91] = 0x62653938;
p32[ 92] = 0x61616135;
p32[ 93] = 0x65323661;
p32[ 94] = 0x32323265;
p32[ 95] = 0x62316265;
p32[ 96] = 0x34353533;
p32[ 97] = 0x65666330;
p32[ 98] = 0x33323039;
p32[ 99] = 0x00363437;
for(i = 100; i <= 109; i++)
p32[i] = 0x00000000;
p32[110] = 0x36336531;
p32[111] = 0x30353039;
p32[112] = 0x34633762;
p32[113] = 0x61323465;
p32[114] = 0x31616263;
p32[115] = 0x62636164;
p32[116] = 0x32343066;
p32[117] = 0x33633939;
p32[118] = 0x37303634;
p32[119] = 0x39663238;
p32[120] = 0x61653831;
p32[121] = 0x65373234;
p32[122] = 0x35323336;
p32[123] = 0x65353631;
p32[124] = 0x31616539;
p32[125] = 0x64336530;
p32[126] = 0x36663561;
p32[127] = 0x65323463;
p32[128] = 0x35356339;
p32[129] = 0x61353132;
p32[130] = 0x61633961;
p32[131] = 0x35613732;
p32[132] = 0x65333638;
p32[133] = 0x64383463;
p32[134] = 0x32306538;
p32[135] = 0x00623638;
for(i = 136; i <= 145; i++)
p32[i] = 0x00000000;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x0000007b;
p32[192] = 0x46464637;
for(i = 193; i <= 203; i++)
p32[i] = 0x46464646;
p32[204] = 0x45464646;
p32[205] = 0x33384635;
p32[206] = 0x34443242;
p32[207] = 0x30324145;
p32[208] = 0x45303034;
p32[209] = 0x35353443;
p32[210] = 0x45354437;
p32[211] = 0x33453344;
p32[212] = 0x41433745;
p32[213] = 0x42344235;
p32[214] = 0x33384335;
p32[215] = 0x30453842;
p32[216] = 0x46354531;
p32[217] = 0x00004643;
for(i = 218; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x00000199;
p32[237] = 0x00000057;
p32[238] = 0x00000057;
p32[239] = 0x00000057;
p32[240] = 0x00000001;
break;
case CURVE_K_571:
p32[ 0] = 0x00000009;
p32[ 1] = 0x0000008f;
for(i = 2; i <= 36; i++)
p32[i] = 0x30303030;
p32[ 37] = 0x00303030;
for(i = 38; i <= 72; i++)
p32[i] = 0x30303030;
p32[ 73] = 0x00313030;
p32[ 74] = 0x62653632;
p32[ 75] = 0x35386137;
p32[ 76] = 0x33323939;
p32[ 77] = 0x38636266;
p32[ 78] = 0x39383132;
p32[ 79] = 0x66313336;
p32[ 80] = 0x33303138;
p32[ 81] = 0x61346566;
p32[ 82] = 0x61633963;
p32[ 83] = 0x30373932;
p32[ 84] = 0x64323130;
p32[ 85] = 0x36346435;
p32[ 86] = 0x38343230;
p32[ 87] = 0x30383430;
p32[ 88] = 0x31343831;
p32[ 89] = 0x34346163;
p32[ 90] = 0x39303733;
p32[ 91] = 0x39343835;
p32[ 92] = 0x30326233;
p32[ 93] = 0x34366535;
p32[ 94] = 0x33616437;
p32[ 95] = 0x62643430;
p32[ 96] = 0x62656334;
p32[ 97] = 0x62633830;
p32[ 98] = 0x62316462;
p32[ 99] = 0x34393361;
p32[100] = 0x37373439;
p32[101] = 0x39626636;
p32[102] = 0x34623838;
p32[103] = 0x34373137;
p32[104] = 0x38616364;
p32[105] = 0x65376338;
p32[106] = 0x35343932;
p32[107] = 0x61333832;
p32[108] = 0x38633130;
p32[109] = 0x00323739;
p32[110] = 0x64393433;
p32[111] = 0x37303863;
p32[112] = 0x62663466;
p32[113] = 0x34373366;
p32[114] = 0x65613466;
p32[115] = 0x33656461;
p32[116] = 0x39616362;
p32[117] = 0x34313335;
p32[118] = 0x38356464;
p32[119] = 0x39636563;
p32[120] = 0x37303366;
p32[121] = 0x66343561;
p32[122] = 0x31366366;
p32[123] = 0x30636665;
p32[124] = 0x38643630;
p32[125] = 0x39633261;
p32[126] = 0x37393464;
p32[127] = 0x61306339;
p32[128] = 0x61343463;
p32[129] = 0x34376165;
p32[130] = 0x62656266;
p32[131] = 0x66396262;
p32[132] = 0x61323737;
p32[133] = 0x62636465;
p32[134] = 0x62303236;
p32[135] = 0x37613130;
p32[136] = 0x61376162;
p32[137] = 0x33623166;
p32[138] = 0x33343032;
p32[139] = 0x35386330;
p32[140] = 0x38393139;
p32[141] = 0x30366634;
p32[142] = 0x34646331;
p32[143] = 0x33343163;
p32[144] = 0x63316665;
p32[145] = 0x00336137;
p32[146] = 0x00000044;
for(i = 147; i <= 154; i++)
p32[i] = 0x46464646;
for(i = 155; i <= 159; i++)
p32[i] = 0x30303030;
p32[160] = 0x31303030;
for(i = 161; i <= 190; i++)
p32[i] = 0x00000000;
p32[191] = 0x000000ac;
p32[192] = 0x30303032;
for(i = 193; i <= 208; i++)
p32[i] = 0x30303030;
p32[209] = 0x31303030;
p32[210] = 0x35383133;
p32[211] = 0x46314530;
p32[212] = 0x36413931;
p32[213] = 0x42344533;
p32[214] = 0x41313933;
p32[215] = 0x39424438;
p32[216] = 0x34463731;
p32[217] = 0x42383331;
p32[218] = 0x44303336;
p32[219] = 0x45423438;
p32[220] = 0x33364435;
p32[221] = 0x31383339;
p32[222] = 0x44313945;
p32[223] = 0x35344245;
p32[224] = 0x37454643;
p32[225] = 0x36463837;
p32[226] = 0x31433733;
p32[227] = 0x00313030;
for(i = 228; i <= 235; i++)
p32[i] = 0x00000000;
p32[236] = 0x0000023b;
p32[237] = 0x0000000a;
p32[238] = 0x00000005;
p32[239] = 0x00000002;
p32[240] = 0x00000001;
break;
default:
return -1;
}
return 0;
}
static ECC_CURVE * get_curve(E_ECC_CURVE ecc_curve)
{
uint32_t i;
ECC_CURVE *ret = NULL;
if(CurveCpy((unsigned int *)&Curve_Copy, ecc_curve))
return NULL;
else
return &Curve_Copy;
}
#else
static ECC_CURVE * get_curve(E_ECC_CURVE ecc_curve)
{
uint32_t i;
ECC_CURVE *ret = NULL;
for(i = 0UL; i < sizeof(_Curve) / sizeof(ECC_CURVE); i++)
{
if(ecc_curve == _Curve[i].curve_id)
{
memcpy((char *)&Curve_Copy, &_Curve[i], sizeof(ECC_CURVE));
ret = &Curve_Copy; /* (ECC_CURVE *)&_Curve[i]; */
}
if(ret != NULL)
{
break;
}
}
return ret;
}
#endif
/*@}*/ /* end of group CRYPTO_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group CRYPTO_Driver */
/*@}*/ /* end of group Standard_Driver */
/*** (C) COPYRIGHT 2017 Nuvoton Technology Corp. ***/