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- /* 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 */
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