From e9a910b33c7837b4b868e3abda18eb4810df7f02 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Sat, 4 Oct 2025 09:14:33 +0100 Subject: config/git: import suckless sbase 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 --- util/sbase/libutil/sha512-256.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 util/sbase/libutil/sha512-256.c (limited to 'util/sbase/libutil/sha512-256.c') diff --git a/util/sbase/libutil/sha512-256.c b/util/sbase/libutil/sha512-256.c new file mode 100644 index 00000000..d4b84495 --- /dev/null +++ b/util/sbase/libutil/sha512-256.c @@ -0,0 +1,26 @@ +/* public domain sha512/256 implementation based on fips180-3 */ +#include +#include "../sha512-256.h" + +extern void sha512_sum_n(void *, uint8_t *, int n); + +void +sha512_256_init(void *ctx) +{ + struct sha512_256 *s = ctx; + s->len = 0; + s->h[0] = 0x22312194fc2bf72cULL; + s->h[1] = 0x9f555fa3c84c64c2ULL; + s->h[2] = 0x2393b86b6f53b151ULL; + s->h[3] = 0x963877195940eabdULL; + s->h[4] = 0x96283ee2a88effe3ULL; + s->h[5] = 0xbe5e1e2553863992ULL; + s->h[6] = 0x2b0199fc2c85b8aaULL; + s->h[7] = 0x0eb72ddc81c52ca2ULL; +} + +void +sha512_256_sum(void *ctx, uint8_t md[SHA512_256_DIGEST_LENGTH]) +{ + sha512_sum_n(ctx, md, 4); +} -- cgit v1.2.1