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Rewrite TLS 1.2 as a state machine

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This commit is contained in:
Zhi Guan
2026-02-01 20:38:13 +08:00
parent a15e0f34c7
commit 9c58806408
27 changed files with 12984 additions and 1589 deletions
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28
src/sphincs.c
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@@ -1418,12 +1418,8 @@ int sphincs_signature_print(FILE *fp, int fmt, int ind, const char *label, const
return 1;
}
int sphincs_sign_init_ex(SPHINCS_SIGN_CTX *ctx, const SPHINCS_KEY *key, int randomize)
int sphincs_sign_init_ex(SPHINCS_SIGN_CTX *ctx, const SPHINCS_KEY *key, const sphincs_hash128_t opt_rand)
{
sphincs_hash128_t opt_rand;
if (!ctx || !key) {
error_print();
return -1;
@@ -1433,18 +1429,11 @@ int sphincs_sign_init_ex(SPHINCS_SIGN_CTX *ctx, const SPHINCS_KEY *key, int rand
// cache signing key
ctx->key = *key;
// set opt_rand
memcpy(opt_rand, key->public_key.seed, sizeof(sphincs_hash128_t));
if (randomize) {
if (rand_bytes(opt_rand, sizeof(opt_rand)) != 1) {
error_print();
return -1;
}
}
// R = PRF_msg(sk_prf, optrand, M) = HMAC(sk_prf, opt_rand|M)
sphincs_hmac256_init(&ctx->hmac_ctx, key->sk_prf, sizeof(sphincs_hash128_t));
sphincs_hmac256_update(&ctx->hmac_ctx, opt_rand, sizeof(sphincs_hash128_t));
if (opt_rand)
sphincs_hmac256_update(&ctx->hmac_ctx, opt_rand, sizeof(sphincs_hash128_t));
else sphincs_hmac256_update(&ctx->hmac_ctx, key->public_key.seed, sizeof(sphincs_hash128_t));
// state
ctx->state = 1;
@@ -1454,8 +1443,13 @@ int sphincs_sign_init_ex(SPHINCS_SIGN_CTX *ctx, const SPHINCS_KEY *key, int rand
int sphincs_sign_init(SPHINCS_SIGN_CTX *ctx, const SPHINCS_KEY *key)
{
int randomize = 1;
if (sphincs_sign_init_ex(ctx, key, randomize) != 1) {
sphincs_hash128_t opt_rand;
if (rand_bytes(opt_rand, sizeof(sphincs_hash128_t)) != 1) {
error_print();
return -1;
}
if (sphincs_sign_init_ex(ctx, key, opt_rand) != 1) {
error_print();
return -1;
}