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- #ifndef SHA2_H
- #define SHA2_H
- #include <stdint.h>
- #define SHA224_DIGEST_SIZE ( 224 / 8)
- #define SHA256_DIGEST_SIZE ( 256 / 8)
- #define SHA384_DIGEST_SIZE ( 384 / 8)
- #define SHA512_DIGEST_SIZE ( 512 / 8)
- #define SHA256_BLOCK_SIZE ( 512 / 8)
- #define SHA512_BLOCK_SIZE (1024 / 8)
- #define SHA384_BLOCK_SIZE SHA512_BLOCK_SIZE
- #define SHA224_BLOCK_SIZE SHA256_BLOCK_SIZE
- #ifdef __cplusplus
- extern "C" {
- #endif
- typedef struct {
- unsigned int tot_len;
- unsigned int len;
-
- unsigned char block[SHA256_BLOCK_SIZE];
- uint32_t h[8];
- } sha256_ctx;
- typedef sha256_ctx sha224_ctx;
- void sha224_init(sha224_ctx *ctx);
- void sha224_update(sha224_ctx *ctx, const unsigned char *message,
- unsigned int len);
- void sha224_final(sha224_ctx *ctx, unsigned char *digest);
- void sha224(const unsigned char *message, unsigned int len,
- unsigned char *digest);
- void sha256_init(sha256_ctx * ctx);
- void sha256_update(sha256_ctx *ctx, const unsigned char *message,
- unsigned int len);
- void sha256_final(sha256_ctx *ctx, unsigned char *digest);
- void sha256(const unsigned char *message, unsigned int len,
- unsigned char *digest);
- #ifdef __cplusplus
- }
- #endif
- #endif
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