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e9a910b33c
i currently use the output of sha512sum in several places of xbmk, which is a bit unreliable in case output changes. other cases where i use util outputs in variables are probably reliable, because i'm using mostly posix utilities in those. to mitigate this, i now import suckless sbase, which has a reasonable sha512sum implementation. *every* binary it builds is being placed in build.list, because i'll probably start using more of them. for example, i may start modifying the "date" implementation, adding the GNU-specific options that i need as mentioned on init.sh i'm importing it in util/ because the sha512sum util is needed for verifying project sources, so if sbase itself is a "project source", that means we can into a chicken and egg bootstrapping problem. this is sbase at revision: 055cc1ae1b3a13c3d8f25af0a4a3316590efcd48 Signed-off-by: Leah Rowe <leah@libreboot.org>
27 lines
617 B
C
27 lines
617 B
C
/* public domain sha512/256 implementation based on fips180-3 */
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#include <stdint.h>
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#include "../sha512-256.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_256_init(void *ctx)
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{
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struct sha512_256 *s = ctx;
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s->len = 0;
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s->h[0] = 0x22312194fc2bf72cULL;
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s->h[1] = 0x9f555fa3c84c64c2ULL;
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s->h[2] = 0x2393b86b6f53b151ULL;
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s->h[3] = 0x963877195940eabdULL;
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s->h[4] = 0x96283ee2a88effe3ULL;
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s->h[5] = 0xbe5e1e2553863992ULL;
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s->h[6] = 0x2b0199fc2c85b8aaULL;
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s->h[7] = 0x0eb72ddc81c52ca2ULL;
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}
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void
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sha512_256_sum(void *ctx, uint8_t md[SHA512_256_DIGEST_LENGTH])
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{
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sha512_sum_n(ctx, md, 4);
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}
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