| /* sha.h sha256 and sha224 hash functions */ |
| #ifndef SHA256_H |
| #define SHA256_H |
| #include "ustd.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define sha256_block_size 64 |
| #define sha256_hash_size 32 |
| #define sha224_hash_size 28 |
| |
| /* algorithm context */ |
| typedef struct sha256_ctx |
| { |
| unsigned message[16]; /* 512-bit buffer for leftovers */ |
| uint64_t length; /* number of processed bytes */ |
| unsigned hash[8]; /* 256-bit algorithm internal hashing state */ |
| unsigned digest_length; /* length of the algorithm digest in bytes */ |
| } sha256_ctx; |
| |
| void rhash_sha224_init(sha256_ctx *ctx); |
| void rhash_sha256_init(sha256_ctx *ctx); |
| void rhash_sha256_update(sha256_ctx *ctx, const unsigned char* data, size_t length); |
| void rhash_sha256_final(sha256_ctx *ctx, unsigned char result[32]); |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| #endif /* __cplusplus */ |
| |
| #endif /* SHA256_H */ |
