| /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /* SHA-1, 256 and 512 functions. */ |
| |
| #ifndef VBOOT_REFERENCE_SHA_H_ |
| #define VBOOT_REFERENCE_SHA_H_ |
| |
| #include <inttypes.h> |
| #include <string.h> |
| |
| #define SHA1_DIGEST_SIZE 20 |
| #define SHA1_BLOCK_SIZE 64 |
| |
| #define SHA256_DIGEST_SIZE 32 |
| #define SHA256_BLOCK_SIZE 64 |
| |
| #define SHA512_DIGEST_SIZE 64 |
| #define SHA512_BLOCK_SIZE 128 |
| |
| typedef struct SHA1_CTX { |
| uint64_t count; |
| uint32_t state[5]; |
| #if defined(HAVE_ENDIAN_H) && defined(HAVE_LITTLE_ENDIAN) |
| union { |
| uint8_t b[64]; |
| uint32_t w[16]; |
| } buf; |
| #else |
| uint8_t buf[64]; |
| #endif |
| } SHA1_CTX; |
| |
| typedef struct { |
| uint32_t h[8]; |
| uint32_t tot_len; |
| uint32_t len; |
| uint8_t block[2 * SHA256_BLOCK_SIZE]; |
| uint8_t buf[SHA256_DIGEST_SIZE]; /* Used for storing the final digest. */ |
| } SHA256_CTX; |
| |
| typedef struct { |
| uint64_t h[8]; |
| uint32_t tot_len; |
| uint32_t len; |
| uint8_t block[2 * SHA512_BLOCK_SIZE]; |
| uint8_t buf[SHA512_DIGEST_SIZE]; /* Used for storing the final digest. */ |
| } SHA512_CTX; |
| |
| |
| void SHA1_init(SHA1_CTX* ctx); |
| void SHA1_update(SHA1_CTX* ctx, const uint8_t* data, uint64_t len); |
| uint8_t* SHA1_final(SHA1_CTX* ctx); |
| |
| void SHA256_init(SHA256_CTX* ctx); |
| void SHA256_update(SHA256_CTX* ctx, const uint8_t* data, uint64_t len); |
| uint8_t* SHA256_final(SHA256_CTX* ctx); |
| |
| void SHA512_init(SHA512_CTX* ctx); |
| void SHA512_update(SHA512_CTX* ctx, const uint8_t* data, uint64_t len); |
| uint8_t* SHA512_final(SHA512_CTX* ctx); |
| |
| /* Convenience function for SHA-1. Computes hash on [data] of length [len]. |
| * and stores it into [digest]. [digest] should be pre-allocated to |
| * SHA1_DIGEST_SIZE bytes. |
| */ |
| uint8_t* SHA1(const uint8_t* data, uint64_t len, uint8_t* digest); |
| |
| /* Convenience function for SHA-256. Computes hash on [data] of length [len]. |
| * and stores it into [digest]. [digest] should be pre-allocated to |
| * SHA256_DIGEST_SIZE bytes. |
| */ |
| uint8_t* SHA256(const uint8_t* data, uint64_t len, uint8_t* digest); |
| |
| /* Convenience function for SHA-512. Computes hash on [data] of length [len]. |
| * and stores it into [digest]. [digest] should be pre-allocated to |
| * SHA512_DIGEST_SIZE bytes. |
| */ |
| uint8_t* SHA512(const uint8_t* data, uint64_t len, uint8_t* digest); |
| |
| |
| #endif /* VBOOT_REFERENCE_SHA_H_ */ |