From f6b7365dc8759d6df5d340e4a68fb75537c07be4 Mon Sep 17 00:00:00 2001 From: aqua Date: Sat, 31 Dec 2022 16:03:20 +0200 Subject: blake2: use makefiles instead of meson.build --- com/BLAKE2/blake2s.c | 126 --------------------------------------------------- 1 file changed, 126 deletions(-) delete mode 100644 com/BLAKE2/blake2s.c (limited to 'com/BLAKE2/blake2s.c') diff --git a/com/BLAKE2/blake2s.c b/com/BLAKE2/blake2s.c deleted file mode 100644 index 5b03b88..0000000 --- a/com/BLAKE2/blake2s.c +++ /dev/null @@ -1,126 +0,0 @@ -#include "blake2s.h" -#include -#include // TODO remove -#include - -static const uint32_t IV[8] = {0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, - 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19}; - -const uint8_t SIGMA[10][16] = { - {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}, {14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3}, - {11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4}, {7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8}, - {9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13}, {2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9}, - {12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11}, {13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10}, - {6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5}, {10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0}}; - -uint32_t -rotr_u32(uint32_t word, uint8_t c) -{ - return (word >> c) | (word << (32 - c)); -} - -void -G(uint32_t v[16], unsigned a, unsigned b, unsigned c, unsigned d, uint32_t x, uint32_t y) -{ - v[a] = v[a] + v[b] + x; - v[d] = rotr_u32(v[d] ^ v[a], 16); - v[c] = v[c] + v[d]; - v[b] = rotr_u32(v[b] ^ v[c], 12); - v[a] = v[a] + v[b] + y; - v[d] = rotr_u32(v[d] ^ v[a], 8); - v[c] = v[c] + v[d]; - v[b] = rotr_u32(v[b] ^ v[c], 7); -} - -void -F(struct BLAKE2s_ctx *ctx, uint32_t m[16], uint32_t f) -{ - // Initialize local work vector v - uint32_t v[16] = {ctx->h[0], ctx->h[1], ctx->h[2], ctx->h[3], ctx->h[4], ctx->h[5], - ctx->h[6], ctx->h[7], IV[0], IV[1], IV[2], IV[3], - IV[4] ^ ctx->t[0], IV[5] ^ ctx->t[1], IV[6], IV[7]}; - if (f) v[14] = ~v[14]; // if last block flag, invert all bits - - // cryptographic mixing - for (unsigned i = 0; i < 10; ++i) { - G(v, 0, 4, 8, 12, m[SIGMA[i][0]], m[SIGMA[i][1]]); - G(v, 1, 5, 9, 13, m[SIGMA[i][2]], m[SIGMA[i][3]]); - G(v, 2, 6, 10, 14, m[SIGMA[i][4]], m[SIGMA[i][5]]); - G(v, 3, 7, 11, 15, m[SIGMA[i][6]], m[SIGMA[i][7]]); - - G(v, 0, 5, 10, 15, m[SIGMA[i][8]], m[SIGMA[i][9]]); - G(v, 1, 6, 11, 12, m[SIGMA[i][10]], m[SIGMA[i][11]]); - G(v, 2, 7, 8, 13, m[SIGMA[i][12]], m[SIGMA[i][13]]); - G(v, 3, 4, 9, 14, m[SIGMA[i][14]], m[SIGMA[i][15]]); - } - - // xor the two halves - for (unsigned i = 0; i < 8; ++i) ctx->h[i] ^= (v[i] ^ v[i + 8]); -} - -int -BLAKE2s_init(struct BLAKE2s_ctx *ctx, size_t outlen, const void *key, size_t keylen) -{ - if (outlen == 0 || outlen > 32 || keylen > 32) { - printf("invalid outlen=%lu or keylen=%lu\n", outlen, keylen); // TODO remove - return -1; - } - - memset(ctx, 0, sizeof(struct BLAKE2s_ctx)); - ctx->param.outlen = outlen; - ctx->param.keylen = keylen; - ctx->param.fanout = 1; - ctx->param.depth = 1; - ctx->outlen = outlen; - - // copy IV into state vector h - for (unsigned i = 0; i < 8; ++i) ctx->h[i] = IV[i]; - // copy param block 0 onto h[0] - ctx->h[0] ^= (ctx->param.depth << 24) ^ (ctx->param.fanout << 16) ^ (keylen << 8) ^ outlen; - - if (keylen > 0) { - BLAKE2s_update(ctx, key, keylen); - ctx->c = 64; // at the end - } - - return 0; -} - -#define MIN(a, b) ((a < b) ? a : b) - -void -BLAKE2s_update(struct BLAKE2s_ctx *ctx, const void *d, size_t dd) -{ - for (unsigned i = 0; i < dd;) { - - if (ctx->c == 64) { // if block is full, consume block - ctx->t[0] += ctx->c; - if (ctx->t[0] < ctx->c) ctx->t[1] += 1; - ctx->c = 0; // reset counter - - uint32_t *m = (uint32_t *)ctx->b; - for (unsigned i = 0; i < 16; ++i) m[i] = htole32(m[i]); - F(ctx, m, 0); - } - - // TODO memcpy - ctx->b[ctx->c] = ((uint8_t *)d)[i]; - ++(ctx->c); - ++i; - } -} - -void -BLAKE2s_final(struct BLAKE2s_ctx *ctx, void *out) -{ - ctx->t[0] += ctx->c; - if (ctx->t[0] < ctx->c) ctx->t[1] += 1; - for (; ctx->c < 64; ++(ctx->c)) ctx->b[ctx->c] = 0; // fill up block with zeroes - - uint32_t *m = (uint32_t *)ctx->b; - for (unsigned i = 0; i < 16; ++i) m[i] = htole32(m[i]); - F(ctx, m, 1); - - for (unsigned i = 0; i < ctx->outlen; ++i) ((uint8_t *)out)[i] = (ctx->h[i >> 2] >> (8 * (i & 3))) & 0xff; -} - -- cgit v1.2.1