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-rw-r--r--debian/vendor-h2o/deps/picotls/deps/cifra/src/sha256.c232
1 files changed, 0 insertions, 232 deletions
diff --git a/debian/vendor-h2o/deps/picotls/deps/cifra/src/sha256.c b/debian/vendor-h2o/deps/picotls/deps/cifra/src/sha256.c
deleted file mode 100644
index 8ecef16..0000000
--- a/debian/vendor-h2o/deps/picotls/deps/cifra/src/sha256.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * cifra - embedded cryptography library
- * Written in 2014 by Joseph Birr-Pixton <jpixton@gmail.com>
- *
- * To the extent possible under law, the author(s) have dedicated all
- * copyright and related and neighboring rights to this software to the
- * public domain worldwide. This software is distributed without any
- * warranty.
- *
- * You should have received a copy of the CC0 Public Domain Dedication
- * along with this software. If not, see
- * <http://creativecommons.org/publicdomain/zero/1.0/>.
- */
-
-#include <string.h>
-
-#include "sha2.h"
-#include "blockwise.h"
-#include "bitops.h"
-#include "handy.h"
-#include "tassert.h"
-
-static const uint32_t K[64] = {
- 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
- 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
- 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
- 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
- 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
- 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
- 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
- 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
- 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
- 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
- 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
- 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
- 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
- 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
- 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
- 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
-};
-
-# define CH(x, y, z) (((x) & (y)) ^ (~(x) & (z)))
-# define MAJ(x, y, z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
-# define BSIG0(x) (rotr32((x), 2) ^ rotr32((x), 13) ^ rotr32((x), 22))
-# define BSIG1(x) (rotr32((x), 6) ^ rotr32((x), 11) ^ rotr32((x), 25))
-# define SSIG0(x) (rotr32((x), 7) ^ rotr32((x), 18) ^ ((x) >> 3))
-# define SSIG1(x) (rotr32((x), 17) ^ rotr32((x), 19) ^ ((x) >> 10))
-
-void cf_sha256_init(cf_sha256_context *ctx)
-{
- memset(ctx, 0, sizeof *ctx);
- ctx->H[0] = 0x6a09e667;
- ctx->H[1] = 0xbb67ae85;
- ctx->H[2] = 0x3c6ef372;
- ctx->H[3] = 0xa54ff53a;
- ctx->H[4] = 0x510e527f;
- ctx->H[5] = 0x9b05688c;
- ctx->H[6] = 0x1f83d9ab;
- ctx->H[7] = 0x5be0cd19;
-}
-
-void cf_sha224_init(cf_sha256_context *ctx)
-{
- memset(ctx, 0, sizeof *ctx);
- ctx->H[0] = 0xc1059ed8;
- ctx->H[1] = 0x367cd507;
- ctx->H[2] = 0x3070dd17;
- ctx->H[3] = 0xf70e5939;
- ctx->H[4] = 0xffc00b31;
- ctx->H[5] = 0x68581511;
- ctx->H[6] = 0x64f98fa7;
- ctx->H[7] = 0xbefa4fa4;
-}
-
-static void sha256_update_block(void *vctx, const uint8_t *inp)
-{
- cf_sha256_context *ctx = vctx;
-
- /* This is a 16-word window into the whole W array. */
- uint32_t W[16];
-
- uint32_t a = ctx->H[0],
- b = ctx->H[1],
- c = ctx->H[2],
- d = ctx->H[3],
- e = ctx->H[4],
- f = ctx->H[5],
- g = ctx->H[6],
- h = ctx->H[7],
- Wt;
-
- size_t t;
- for (t = 0; t < 64; t++)
- {
- /* For W[0..16] we process the input into W.
- * For W[16..64] we compute the next W value:
- *
- * W[t] = SSIG1(W[t - 2]) + W[t - 7] + SSIG0(W[t - 15]) + W[t - 16];
- *
- * But all W indices are reduced mod 16 into our window.
- */
- if (t < 16)
- {
- W[t] = Wt = read32_be(inp);
- inp += 4;
- } else {
- Wt = SSIG1(W[(t - 2) % 16]) +
- W[(t - 7) % 16] +
- SSIG0(W[(t - 15) % 16]) +
- W[(t - 16) % 16];
- W[t % 16] = Wt;
- }
-
- uint32_t T1 = h + BSIG1(e) + CH(e, f, g) + K[t] + Wt;
- uint32_t T2 = BSIG0(a) + MAJ(a, b, c);
- h = g;
- g = f;
- f = e;
- e = d + T1;
- d = c;
- c = b;
- b = a;
- a = T1 + T2;
- }
-
- ctx->H[0] += a;
- ctx->H[1] += b;
- ctx->H[2] += c;
- ctx->H[3] += d;
- ctx->H[4] += e;
- ctx->H[5] += f;
- ctx->H[6] += g;
- ctx->H[7] += h;
-
- ctx->blocks++;
-}
-
-void cf_sha256_update(cf_sha256_context *ctx, const void *data, size_t nbytes)
-{
- cf_blockwise_accumulate(ctx->partial, &ctx->npartial, sizeof ctx->partial,
- data, nbytes,
- sha256_update_block, ctx);
-}
-
-void cf_sha224_update(cf_sha256_context *ctx, const void *data, size_t nbytes)
-{
- cf_sha256_update(ctx, data, nbytes);
-}
-
-void cf_sha256_digest(const cf_sha256_context *ctx, uint8_t hash[CF_SHA256_HASHSZ])
-{
- /* We copy the context, so the finalisation doesn't effect the caller's
- * context. This means the caller can do:
- *
- * x = init()
- * x.update('hello')
- * h1 = x.digest()
- * x.update(' world')
- * h2 = x.digest()
- *
- * to get h1 = H('hello') and h2 = H('hello world')
- *
- * This wouldn't work if we applied MD-padding to *ctx.
- */
-
- cf_sha256_context ours = *ctx;
- cf_sha256_digest_final(&ours, hash);
-}
-
-void cf_sha256_digest_final(cf_sha256_context *ctx, uint8_t hash[CF_SHA256_HASHSZ])
-{
- uint64_t digested_bytes = ctx->blocks;
- digested_bytes = digested_bytes * CF_SHA256_BLOCKSZ + ctx->npartial;
- uint64_t digested_bits = digested_bytes * 8;
-
- size_t padbytes = CF_SHA256_BLOCKSZ - ((digested_bytes + 8) % CF_SHA256_BLOCKSZ);
-
- /* Hash 0x80 00 ... block first. */
- cf_blockwise_acc_pad(ctx->partial, &ctx->npartial, sizeof ctx->partial,
- 0x80, 0x00, 0x00, padbytes,
- sha256_update_block, ctx);
-
- /* Now hash length. */
- uint8_t buf[8];
- write64_be(digested_bits, buf);
- cf_sha256_update(ctx, buf, 8);
-
- /* We ought to have got our padding calculation right! */
- assert(ctx->npartial == 0);
-
- write32_be(ctx->H[0], hash + 0);
- write32_be(ctx->H[1], hash + 4);
- write32_be(ctx->H[2], hash + 8);
- write32_be(ctx->H[3], hash + 12);
- write32_be(ctx->H[4], hash + 16);
- write32_be(ctx->H[5], hash + 20);
- write32_be(ctx->H[6], hash + 24);
- write32_be(ctx->H[7], hash + 28);
-
- memset(ctx, 0, sizeof *ctx);
-}
-
-void cf_sha224_digest(const cf_sha256_context *ctx, uint8_t hash[CF_SHA224_HASHSZ])
-{
- uint8_t full[CF_SHA256_HASHSZ];
- cf_sha256_digest(ctx, full);
- memcpy(hash, full, CF_SHA224_HASHSZ);
-}
-
-void cf_sha224_digest_final(cf_sha256_context *ctx, uint8_t hash[CF_SHA224_HASHSZ])
-{
- uint8_t full[CF_SHA256_HASHSZ];
- cf_sha256_digest_final(ctx, full);
- memcpy(hash, full, CF_SHA224_HASHSZ);
-}
-
-const cf_chash cf_sha224 = {
- .hashsz = CF_SHA224_HASHSZ,
- .blocksz = CF_SHA256_BLOCKSZ,
- .init = (cf_chash_init) cf_sha224_init,
- .update = (cf_chash_update) cf_sha224_update,
- .digest = (cf_chash_digest) cf_sha224_digest
-};
-
-const cf_chash cf_sha256 = {
- .hashsz = CF_SHA256_HASHSZ,
- .blocksz = CF_SHA256_BLOCKSZ,
- .init = (cf_chash_init) cf_sha256_init,
- .update = (cf_chash_update) cf_sha256_update,
- .digest = (cf_chash_digest) cf_sha256_digest
-};
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-25 00:06:05 +0000