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87f4755cd0
Adjust buffer sizes for both SHA-256 and SHA-512 based 224-bit SHA checksums. Use a temporary buffer for SHA-512/224, as 224 is not multiple of 64-bit internal state array of SHA-512.
30 lines
700 B
C
30 lines
700 B
C
/* public domain sha512/224 implementation based on fips180-3 */
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#include <stdint.h>
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#include <string.h>
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#include "../sha512-224.h"
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extern void sha512_sum_n(void *, uint8_t *, int n);
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void
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sha512_224_init(void *ctx)
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{
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struct sha512_224 *s = ctx;
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s->len = 0;
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s->h[0] = 0x8c3d37c819544da2ULL;
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s->h[1] = 0x73e1996689dcd4d6ULL;
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s->h[2] = 0x1dfab7ae32ff9c82ULL;
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s->h[3] = 0x679dd514582f9fcfULL;
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s->h[4] = 0x0f6d2b697bd44da8ULL;
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s->h[5] = 0x77e36f7304c48942ULL;
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s->h[6] = 0x3f9d85a86a1d36c8ULL;
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s->h[7] = 0x1112e6ad91d692a1ULL;
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}
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void
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sha512_224_sum(void *ctx, uint8_t md[SHA512_224_DIGEST_LENGTH])
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{
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uint8_t buf[32];
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sha512_sum_n(ctx, buf, 4);
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memcpy(md, buf, SHA512_224_DIGEST_LENGTH);
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}
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