29 lines
805 B
C
29 lines
805 B
C
#ifndef _SHA_H
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#define _SHA_H
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#include <stdint.h>
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/* The SHA block size and message digest sizes, in bytes */
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#define SHA_DATASIZE 64
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#define SHA_DATALEN 16
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#define SHA_DIGESTSIZE 20
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#define SHA_DIGESTLEN 5
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/* The structure for storing SHA info */
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struct sha_ctx {
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uint32_t digest[SHA_DIGESTLEN]; /* Message digest */
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uint32_t count_l, count_h; /* 64-bit block count */
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uint8_t block[SHA_DATASIZE]; /* SHA data buffer */
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unsigned int index; /* index into buffer */
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};
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void sha_init(struct sha_ctx *ctx);
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void sha_update(struct sha_ctx *ctx, const unsigned char *buffer, uint32_t len);
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void sha_final(struct sha_ctx *ctx);
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void sha_digest(struct sha_ctx *ctx, unsigned char *s);
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void sha_copy(struct sha_ctx *dest, struct sha_ctx *src);
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#endif /* !_SHA_H */
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