| /** |
| * \file sha1.h |
| * |
| * \brief This file contains SHA-1 definitions and functions. |
| * |
| * The Secure Hash Algorithm 1 (SHA-1) cryptographic hash function is defined in |
| * <em>FIPS 180-4: Secure Hash Standard (SHS)</em>. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use constitutes |
| * a security risk. We recommend considering stronger message |
| * digests instead. |
| */ |
| /* |
| * Copyright The Mbed TLS Contributors |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| * not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #ifndef MBEDTLS_SHA1_H |
| #define MBEDTLS_SHA1_H |
| |
| #if !defined(MBEDTLS_CONFIG_FILE) |
| #include "mbedtls/config.h" |
| #else |
| #include MBEDTLS_CONFIG_FILE |
| #endif |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| /* MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED is deprecated and should not be used. */ |
| #define MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED -0x0035 /**< SHA-1 hardware accelerator failed */ |
| #define MBEDTLS_ERR_SHA1_BAD_INPUT_DATA -0x0073 /**< SHA-1 input data was malformed. */ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if !defined(MBEDTLS_SHA1_ALT) |
| // Regular implementation |
| // |
| |
| /** |
| * \brief The SHA-1 context structure. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| */ |
| typedef struct mbedtls_sha1_context |
| { |
| uint32_t total[2]; /*!< The number of Bytes processed. */ |
| uint32_t state[5]; /*!< The intermediate digest state. */ |
| unsigned char buffer[64]; /*!< The data block being processed. */ |
| } |
| mbedtls_sha1_context; |
| |
| #else /* MBEDTLS_SHA1_ALT */ |
| #include "sha1_alt.h" |
| #endif /* MBEDTLS_SHA1_ALT */ |
| |
| /** |
| * \brief This function initializes a SHA-1 context. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param ctx The SHA-1 context to initialize. |
| * This must not be \c NULL. |
| * |
| */ |
| void mbedtls_sha1_init( mbedtls_sha1_context *ctx ); |
| |
| /** |
| * \brief This function clears a SHA-1 context. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param ctx The SHA-1 context to clear. This may be \c NULL, |
| * in which case this function does nothing. If it is |
| * not \c NULL, it must point to an initialized |
| * SHA-1 context. |
| * |
| */ |
| void mbedtls_sha1_free( mbedtls_sha1_context *ctx ); |
| |
| /** |
| * \brief This function clones the state of a SHA-1 context. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param dst The SHA-1 context to clone to. This must be initialized. |
| * \param src The SHA-1 context to clone from. This must be initialized. |
| * |
| */ |
| void mbedtls_sha1_clone( mbedtls_sha1_context *dst, |
| const mbedtls_sha1_context *src ); |
| |
| /** |
| * \brief This function starts a SHA-1 checksum calculation. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param ctx The SHA-1 context to initialize. This must be initialized. |
| * |
| * \return \c 0 on success. |
| * \return A negative error code on failure. |
| * |
| */ |
| int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx ); |
| |
| /** |
| * \brief This function feeds an input buffer into an ongoing SHA-1 |
| * checksum calculation. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param ctx The SHA-1 context. This must be initialized |
| * and have a hash operation started. |
| * \param input The buffer holding the input data. |
| * This must be a readable buffer of length \p ilen Bytes. |
| * \param ilen The length of the input data \p input in Bytes. |
| * |
| * \return \c 0 on success. |
| * \return A negative error code on failure. |
| */ |
| int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx, |
| const unsigned char *input, |
| size_t ilen ); |
| |
| /** |
| * \brief This function finishes the SHA-1 operation, and writes |
| * the result to the output buffer. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param ctx The SHA-1 context to use. This must be initialized and |
| * have a hash operation started. |
| * \param output The SHA-1 checksum result. This must be a writable |
| * buffer of length \c 20 Bytes. |
| * |
| * \return \c 0 on success. |
| * \return A negative error code on failure. |
| */ |
| int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx, |
| unsigned char output[20] ); |
| |
| /** |
| * \brief SHA-1 process data block (internal use only). |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param ctx The SHA-1 context to use. This must be initialized. |
| * \param data The data block being processed. This must be a |
| * readable buffer of length \c 64 Bytes. |
| * |
| * \return \c 0 on success. |
| * \return A negative error code on failure. |
| * |
| */ |
| int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx, |
| const unsigned char data[64] ); |
| |
| #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
| #if defined(MBEDTLS_DEPRECATED_WARNING) |
| #define MBEDTLS_DEPRECATED __attribute__((deprecated)) |
| #else |
| #define MBEDTLS_DEPRECATED |
| #endif |
| /** |
| * \brief This function starts a SHA-1 checksum calculation. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \deprecated Superseded by mbedtls_sha1_starts_ret() in 2.7.0. |
| * |
| * \param ctx The SHA-1 context to initialize. This must be initialized. |
| * |
| */ |
| MBEDTLS_DEPRECATED void mbedtls_sha1_starts( mbedtls_sha1_context *ctx ); |
| |
| /** |
| * \brief This function feeds an input buffer into an ongoing SHA-1 |
| * checksum calculation. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \deprecated Superseded by mbedtls_sha1_update_ret() in 2.7.0. |
| * |
| * \param ctx The SHA-1 context. This must be initialized and |
| * have a hash operation started. |
| * \param input The buffer holding the input data. |
| * This must be a readable buffer of length \p ilen Bytes. |
| * \param ilen The length of the input data \p input in Bytes. |
| * |
| */ |
| MBEDTLS_DEPRECATED void mbedtls_sha1_update( mbedtls_sha1_context *ctx, |
| const unsigned char *input, |
| size_t ilen ); |
| |
| /** |
| * \brief This function finishes the SHA-1 operation, and writes |
| * the result to the output buffer. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \deprecated Superseded by mbedtls_sha1_finish_ret() in 2.7.0. |
| * |
| * \param ctx The SHA-1 context. This must be initialized and |
| * have a hash operation started. |
| * \param output The SHA-1 checksum result. |
| * This must be a writable buffer of length \c 20 Bytes. |
| */ |
| MBEDTLS_DEPRECATED void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, |
| unsigned char output[20] ); |
| |
| /** |
| * \brief SHA-1 process data block (internal use only). |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \deprecated Superseded by mbedtls_internal_sha1_process() in 2.7.0. |
| * |
| * \param ctx The SHA-1 context. This must be initialized. |
| * \param data The data block being processed. |
| * This must be a readable buffer of length \c 64 bytes. |
| * |
| */ |
| MBEDTLS_DEPRECATED void mbedtls_sha1_process( mbedtls_sha1_context *ctx, |
| const unsigned char data[64] ); |
| |
| #undef MBEDTLS_DEPRECATED |
| #endif /* !MBEDTLS_DEPRECATED_REMOVED */ |
| |
| /** |
| * \brief This function calculates the SHA-1 checksum of a buffer. |
| * |
| * The function allocates the context, performs the |
| * calculation, and frees the context. |
| * |
| * The SHA-1 result is calculated as |
| * output = SHA-1(input buffer). |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \param input The buffer holding the input data. |
| * This must be a readable buffer of length \p ilen Bytes. |
| * \param ilen The length of the input data \p input in Bytes. |
| * \param output The SHA-1 checksum result. |
| * This must be a writable buffer of length \c 20 Bytes. |
| * |
| * \return \c 0 on success. |
| * \return A negative error code on failure. |
| * |
| */ |
| int mbedtls_sha1_ret( const unsigned char *input, |
| size_t ilen, |
| unsigned char output[20] ); |
| |
| #if !defined(MBEDTLS_DEPRECATED_REMOVED) |
| #if defined(MBEDTLS_DEPRECATED_WARNING) |
| #define MBEDTLS_DEPRECATED __attribute__((deprecated)) |
| #else |
| #define MBEDTLS_DEPRECATED |
| #endif |
| /** |
| * \brief This function calculates the SHA-1 checksum of a buffer. |
| * |
| * The function allocates the context, performs the |
| * calculation, and frees the context. |
| * |
| * The SHA-1 result is calculated as |
| * output = SHA-1(input buffer). |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \deprecated Superseded by mbedtls_sha1_ret() in 2.7.0 |
| * |
| * \param input The buffer holding the input data. |
| * This must be a readable buffer of length \p ilen Bytes. |
| * \param ilen The length of the input data \p input in Bytes. |
| * \param output The SHA-1 checksum result. This must be a writable |
| * buffer of size \c 20 Bytes. |
| * |
| */ |
| MBEDTLS_DEPRECATED void mbedtls_sha1( const unsigned char *input, |
| size_t ilen, |
| unsigned char output[20] ); |
| |
| #undef MBEDTLS_DEPRECATED |
| #endif /* !MBEDTLS_DEPRECATED_REMOVED */ |
| |
| #if defined(MBEDTLS_SELF_TEST) |
| |
| /** |
| * \brief The SHA-1 checkup routine. |
| * |
| * \warning SHA-1 is considered a weak message digest and its use |
| * constitutes a security risk. We recommend considering |
| * stronger message digests instead. |
| * |
| * \return \c 0 on success. |
| * \return \c 1 on failure. |
| * |
| */ |
| int mbedtls_sha1_self_test( int verbose ); |
| |
| #endif /* MBEDTLS_SELF_TEST */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* mbedtls_sha1.h */ |
