| /* Copyright (c) 2014, Google Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include <openssl/bio.h> |
| #include <openssl/digest.h> |
| #include <openssl/evp.h> |
| #include <openssl/rsa.h> |
| |
| |
| /* kExampleRSAKeyDER is an RSA private key in ASN.1, DER format. Of course, you |
| * should never use this key anywhere but in an example. */ |
| static const uint8_t kExampleRSAKeyDER[] = { |
| 0x30, 0x82, 0x02, 0x5c, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xf8, |
| 0xb8, 0x6c, 0x83, 0xb4, 0xbc, 0xd9, 0xa8, 0x57, 0xc0, 0xa5, 0xb4, 0x59, |
| 0x76, 0x8c, 0x54, 0x1d, 0x79, 0xeb, 0x22, 0x52, 0x04, 0x7e, 0xd3, 0x37, |
| 0xeb, 0x41, 0xfd, 0x83, 0xf9, 0xf0, 0xa6, 0x85, 0x15, 0x34, 0x75, 0x71, |
| 0x5a, 0x84, 0xa8, 0x3c, 0xd2, 0xef, 0x5a, 0x4e, 0xd3, 0xde, 0x97, 0x8a, |
| 0xdd, 0xff, 0xbb, 0xcf, 0x0a, 0xaa, 0x86, 0x92, 0xbe, 0xb8, 0x50, 0xe4, |
| 0xcd, 0x6f, 0x80, 0x33, 0x30, 0x76, 0x13, 0x8f, 0xca, 0x7b, 0xdc, 0xec, |
| 0x5a, 0xca, 0x63, 0xc7, 0x03, 0x25, 0xef, 0xa8, 0x8a, 0x83, 0x58, 0x76, |
| 0x20, 0xfa, 0x16, 0x77, 0xd7, 0x79, 0x92, 0x63, 0x01, 0x48, 0x1a, 0xd8, |
| 0x7b, 0x67, 0xf1, 0x52, 0x55, 0x49, 0x4e, 0xd6, 0x6e, 0x4a, 0x5c, 0xd7, |
| 0x7a, 0x37, 0x36, 0x0c, 0xde, 0xdd, 0x8f, 0x44, 0xe8, 0xc2, 0xa7, 0x2c, |
| 0x2b, 0xb5, 0xaf, 0x64, 0x4b, 0x61, 0x07, 0x02, 0x03, 0x01, 0x00, 0x01, |
| 0x02, 0x81, 0x80, 0x74, 0x88, 0x64, 0x3f, 0x69, 0x45, 0x3a, 0x6d, 0xc7, |
| 0x7f, 0xb9, 0xa3, 0xc0, 0x6e, 0xec, 0xdc, 0xd4, 0x5a, 0xb5, 0x32, 0x85, |
| 0x5f, 0x19, 0xd4, 0xf8, 0xd4, 0x3f, 0x3c, 0xfa, 0xc2, 0xf6, 0x5f, 0xee, |
| 0xe6, 0xba, 0x87, 0x74, 0x2e, 0xc7, 0x0c, 0xd4, 0x42, 0xb8, 0x66, 0x85, |
| 0x9c, 0x7b, 0x24, 0x61, 0xaa, 0x16, 0x11, 0xf6, 0xb5, 0xb6, 0xa4, 0x0a, |
| 0xc9, 0x55, 0x2e, 0x81, 0xa5, 0x47, 0x61, 0xcb, 0x25, 0x8f, 0xc2, 0x15, |
| 0x7b, 0x0e, 0x7c, 0x36, 0x9f, 0x3a, 0xda, 0x58, 0x86, 0x1c, 0x5b, 0x83, |
| 0x79, 0xe6, 0x2b, 0xcc, 0xe6, 0xfa, 0x2c, 0x61, 0xf2, 0x78, 0x80, 0x1b, |
| 0xe2, 0xf3, 0x9d, 0x39, 0x2b, 0x65, 0x57, 0x91, 0x3d, 0x71, 0x99, 0x73, |
| 0xa5, 0xc2, 0x79, 0x20, 0x8c, 0x07, 0x4f, 0xe5, 0xb4, 0x60, 0x1f, 0x99, |
| 0xa2, 0xb1, 0x4f, 0x0c, 0xef, 0xbc, 0x59, 0x53, 0x00, 0x7d, 0xb1, 0x02, |
| 0x41, 0x00, 0xfc, 0x7e, 0x23, 0x65, 0x70, 0xf8, 0xce, 0xd3, 0x40, 0x41, |
| 0x80, 0x6a, 0x1d, 0x01, 0xd6, 0x01, 0xff, 0xb6, 0x1b, 0x3d, 0x3d, 0x59, |
| 0x09, 0x33, 0x79, 0xc0, 0x4f, 0xde, 0x96, 0x27, 0x4b, 0x18, 0xc6, 0xd9, |
| 0x78, 0xf1, 0xf4, 0x35, 0x46, 0xe9, 0x7c, 0x42, 0x7a, 0x5d, 0x9f, 0xef, |
| 0x54, 0xb8, 0xf7, 0x9f, 0xc4, 0x33, 0x6c, 0xf3, 0x8c, 0x32, 0x46, 0x87, |
| 0x67, 0x30, 0x7b, 0xa7, 0xac, 0xe3, 0x02, 0x41, 0x00, 0xfc, 0x2c, 0xdf, |
| 0x0c, 0x0d, 0x88, 0xf5, 0xb1, 0x92, 0xa8, 0x93, 0x47, 0x63, 0x55, 0xf5, |
| 0xca, 0x58, 0x43, 0xba, 0x1c, 0xe5, 0x9e, 0xb6, 0x95, 0x05, 0xcd, 0xb5, |
| 0x82, 0xdf, 0xeb, 0x04, 0x53, 0x9d, 0xbd, 0xc2, 0x38, 0x16, 0xb3, 0x62, |
| 0xdd, 0xa1, 0x46, 0xdb, 0x6d, 0x97, 0x93, 0x9f, 0x8a, 0xc3, 0x9b, 0x64, |
| 0x7e, 0x42, 0xe3, 0x32, 0x57, 0x19, 0x1b, 0xd5, 0x6e, 0x85, 0xfa, 0xb8, |
| 0x8d, 0x02, 0x41, 0x00, 0xbc, 0x3d, 0xde, 0x6d, 0xd6, 0x97, 0xe8, 0xba, |
| 0x9e, 0x81, 0x37, 0x17, 0xe5, 0xa0, 0x64, 0xc9, 0x00, 0xb7, 0xe7, 0xfe, |
| 0xf4, 0x29, 0xd9, 0x2e, 0x43, 0x6b, 0x19, 0x20, 0xbd, 0x99, 0x75, 0xe7, |
| 0x76, 0xf8, 0xd3, 0xae, 0xaf, 0x7e, 0xb8, 0xeb, 0x81, 0xf4, 0x9d, 0xfe, |
| 0x07, 0x2b, 0x0b, 0x63, 0x0b, 0x5a, 0x55, 0x90, 0x71, 0x7d, 0xf1, 0xdb, |
| 0xd9, 0xb1, 0x41, 0x41, 0x68, 0x2f, 0x4e, 0x39, 0x02, 0x40, 0x5a, 0x34, |
| 0x66, 0xd8, 0xf5, 0xe2, 0x7f, 0x18, 0xb5, 0x00, 0x6e, 0x26, 0x84, 0x27, |
| 0x14, 0x93, 0xfb, 0xfc, 0xc6, 0x0f, 0x5e, 0x27, 0xe6, 0xe1, 0xe9, 0xc0, |
| 0x8a, 0xe4, 0x34, 0xda, 0xe9, 0xa2, 0x4b, 0x73, 0xbc, 0x8c, 0xb9, 0xba, |
| 0x13, 0x6c, 0x7a, 0x2b, 0x51, 0x84, 0xa3, 0x4a, 0xe0, 0x30, 0x10, 0x06, |
| 0x7e, 0xed, 0x17, 0x5a, 0x14, 0x00, 0xc9, 0xef, 0x85, 0xea, 0x52, 0x2c, |
| 0xbc, 0x65, 0x02, 0x40, 0x51, 0xe3, 0xf2, 0x83, 0x19, 0x9b, 0xc4, 0x1e, |
| 0x2f, 0x50, 0x3d, 0xdf, 0x5a, 0xa2, 0x18, 0xca, 0x5f, 0x2e, 0x49, 0xaf, |
| 0x6f, 0xcc, 0xfa, 0x65, 0x77, 0x94, 0xb5, 0xa1, 0x0a, 0xa9, 0xd1, 0x8a, |
| 0x39, 0x37, 0xf4, 0x0b, 0xa0, 0xd7, 0x82, 0x27, 0x5e, 0xae, 0x17, 0x17, |
| 0xa1, 0x1e, 0x54, 0x34, 0xbf, 0x6e, 0xc4, 0x8e, 0x99, 0x5d, 0x08, 0xf1, |
| 0x2d, 0x86, 0x9d, 0xa5, 0x20, 0x1b, 0xe5, 0xdf, |
| }; |
| |
| static const uint8_t kMsg[] = {1, 2, 3, 4}; |
| |
| static const uint8_t kSignature[] = { |
| 0xa5, 0xf0, 0x8a, 0x47, 0x5d, 0x3c, 0xb3, 0xcc, 0xa9, 0x79, 0xaf, 0x4d, |
| 0x8c, 0xae, 0x4c, 0x14, 0xef, 0xc2, 0x0b, 0x34, 0x36, 0xde, 0xf4, 0x3e, |
| 0x3d, 0xbb, 0x4a, 0x60, 0x5c, 0xc8, 0x91, 0x28, 0xda, 0xfb, 0x7e, 0x04, |
| 0x96, 0x7e, 0x63, 0x13, 0x90, 0xce, 0xb9, 0xb4, 0x62, 0x7a, 0xfd, 0x09, |
| 0x3d, 0xc7, 0x67, 0x78, 0x54, 0x04, 0xeb, 0x52, 0x62, 0x6e, 0x24, 0x67, |
| 0xb4, 0x40, 0xfc, 0x57, 0x62, 0xc6, 0xf1, 0x67, 0xc1, 0x97, 0x8f, 0x6a, |
| 0xa8, 0xae, 0x44, 0x46, 0x5e, 0xab, 0x67, 0x17, 0x53, 0x19, 0x3a, 0xda, |
| 0x5a, 0xc8, 0x16, 0x3e, 0x86, 0xd5, 0xc5, 0x71, 0x2f, 0xfc, 0x23, 0x48, |
| 0xd9, 0x0b, 0x13, 0xdd, 0x7b, 0x5a, 0x25, 0x79, 0xef, 0xa5, 0x7b, 0x04, |
| 0xed, 0x44, 0xf6, 0x18, 0x55, 0xe4, 0x0a, 0xe9, 0x57, 0x79, 0x5d, 0xd7, |
| 0x55, 0xa7, 0xab, 0x45, 0x02, 0x97, 0x60, 0x42, |
| }; |
| |
| |
| int example_EVP_DigestSignInit(void) { |
| int ret = 0; |
| EVP_PKEY *pkey = NULL; |
| RSA *rsa = NULL; |
| const uint8_t *derp = kExampleRSAKeyDER; |
| uint8_t *sig = NULL; |
| size_t sig_len = 0; |
| EVP_MD_CTX md_ctx; |
| |
| EVP_MD_CTX_init(&md_ctx); |
| |
| if (!d2i_RSAPrivateKey(&rsa, &derp, sizeof(kExampleRSAKeyDER))) { |
| goto out; |
| } |
| |
| pkey = EVP_PKEY_new(); |
| sig = malloc(sig_len); |
| if (pkey == NULL || |
| !EVP_PKEY_set1_RSA(pkey, rsa) || |
| EVP_DigestSignInit(&md_ctx, NULL, EVP_sha256(), NULL, pkey) != 1 || |
| EVP_DigestSignUpdate(&md_ctx, kMsg, sizeof(kMsg)) != 1) { |
| goto out; |
| } |
| /* Determine the size of the signature. */ |
| if (EVP_DigestSignFinal(&md_ctx, NULL, &sig_len) != 1) { |
| goto out; |
| } |
| /* Sanity check for testing. */ |
| if (sig_len != RSA_size(rsa)) { |
| fprintf(stderr, "sig_len mismatch\n"); |
| goto out; |
| } |
| |
| sig = malloc(sig_len); |
| if (sig == NULL) { |
| goto out; |
| } |
| if (EVP_DigestSignFinal(&md_ctx, sig, &sig_len) != 1) { |
| free(sig); |
| goto out; |
| } |
| |
| ret = 1; |
| |
| out: |
| if (!ret) { |
| BIO_print_errors_fp(stderr); |
| } |
| |
| EVP_MD_CTX_cleanup(&md_ctx); |
| if (pkey) { |
| EVP_PKEY_free(pkey); |
| } |
| if (rsa) { |
| RSA_free(rsa); |
| } |
| if (sig) { |
| free(sig); |
| } |
| |
| return ret; |
| } |
| |
| int example_EVP_DigestVerifyInit(void) { |
| int ret = 0; |
| EVP_PKEY *pkey = NULL; |
| RSA *rsa = NULL; |
| const uint8_t *derp = kExampleRSAKeyDER; |
| EVP_MD_CTX md_ctx; |
| |
| EVP_MD_CTX_init(&md_ctx); |
| |
| if (!d2i_RSAPrivateKey(&rsa, &derp, sizeof(kExampleRSAKeyDER))) { |
| goto out; |
| } |
| |
| pkey = EVP_PKEY_new(); |
| if (pkey == NULL || |
| !EVP_PKEY_set1_RSA(pkey, rsa) || |
| EVP_DigestVerifyInit(&md_ctx, NULL, EVP_sha256(), NULL, pkey) != 1 || |
| EVP_DigestVerifyUpdate(&md_ctx, kMsg, sizeof(kMsg)) != 1 || |
| EVP_DigestVerifyFinal(&md_ctx, kSignature, sizeof(kSignature)) != 1) { |
| goto out; |
| } |
| ret = 1; |
| |
| out: |
| if (!ret) { |
| BIO_print_errors_fp(stderr); |
| } |
| |
| EVP_MD_CTX_cleanup(&md_ctx); |
| if (pkey) { |
| EVP_PKEY_free(pkey); |
| } |
| if (rsa) { |
| RSA_free(rsa); |
| } |
| |
| return ret; |
| } |
| |
| int main(void) { |
| if (!example_EVP_DigestSignInit()) { |
| fprintf(stderr, "EVP_DigestSignInit failed\n"); |
| return 1; |
| } |
| |
| if (!example_EVP_DigestVerifyInit()) { |
| fprintf(stderr, "EVP_DigestVerifyInit failed\n"); |
| return 1; |
| } |
| |
| printf("PASS\n"); |
| return 0; |
| } |