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Rename all algorithm-specific ctx to state

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This commit is contained in:
Lucas Gabriel Vuotto 2024-06-15 21:13:31 +00:00
parent 2b76f3df5b
commit 230dedac16
14 changed files with 406 additions and 404 deletions
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57
auth_hmac.c
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@ -31,68 +31,69 @@
static int
hmac_init(void *arg, void *initparams)
{
struct hmac_ctx *ctx = arg;
struct hmac_state *state = arg;
struct lc_hmac_params *params = initparams;
uint8_t ikeypad[HMAC_BLOCKLEN_MAX];
size_t i, olen, blen, keylen;
ctx->hash = params->hash;
state->hash = params->hash;
keylen = params->keylen;
blen = params->hash->impl->blocklen;
if (keylen > blen) {
if (!lc_hash(ctx->hash->impl, ctx->key, &olen, params->key,
if (!lc_hash(state->hash->impl, state->key, &olen, params->key,
keylen))
return 0;
keylen = olen;
} else
for (i = 0; i < keylen; i++)
ctx->key[i] = params->key[i];
state->key[i] = params->key[i];
for (i = keylen; i < blen; i++)
ctx->key[i] = 0;
state->key[i] = 0;
for (i = 0; i < blen; i++)
ikeypad[i] = ctx->key[i] ^ HMAC_IPAD;
ikeypad[i] = state->key[i] ^ HMAC_IPAD;
return lc_hash_init(ctx->hash) &&
lc_hash_update(ctx->hash, ikeypad, blen);
return lc_hash_init(state->hash) &&
lc_hash_update(state->hash, ikeypad, blen);
}
static int
hmac_update(void *arg, const uint8_t *in, size_t inlen)
{
struct hmac_ctx *ctx = arg;
struct hmac_state *state = arg;
return lc_hash_update(ctx->hash, in, inlen);
return lc_hash_update(state->hash, in, inlen);
}
static int
hmac_final(void *arg, uint8_t *out, size_t *outlen)
{
struct hmac_ctx *ctx = arg;
uint8_t m[HMAC_BLOCKLEN_MAX], okeypad[HMAC_BLOCKLEN_MAX];
size_t i, olen, blen;
int rc;
struct hmac_state *state = arg;
uint8_t m[HMAC_BLOCKLEN_MAX],
okeypad[HMAC_BLOCKLEN_MAX];
size_t i, olen, blen;
int rc;
if (out == NULL) {
*outlen = ctx->hash->impl->hashlen;
*outlen = state->hash->impl->hashlen;
return 1;
}
*outlen = 0;
blen = ctx->hash->impl->blocklen;
blen = state->hash->impl->blocklen;
for (i = 0; i < blen; i++)
okeypad[i] = ctx->key[i] ^ HMAC_OPAD;
okeypad[i] = state->key[i] ^ HMAC_OPAD;
rc = lc_hash_final(ctx->hash, m, &olen) &&
lc_hash_init(ctx->hash) &&
lc_hash_update(ctx->hash, okeypad, blen) &&
lc_hash_update(ctx->hash, m, olen) &&
lc_hash_final(ctx->hash, out, outlen);
rc = lc_hash_final(state->hash, m, &olen) &&
lc_hash_init(state->hash) &&
lc_hash_update(state->hash, okeypad, blen) &&
lc_hash_update(state->hash, m, olen) &&
lc_hash_final(state->hash, out, outlen);
lc_scrub(ctx, sizeof(*ctx));
lc_scrub(state, sizeof(*state));
return rc;
}
@ -102,16 +103,16 @@ hmac_auth(uint8_t *out, size_t *outlen, void *initparams, const uint8_t *in,
size_t inlen)
{
struct lc_hmac_params *params = initparams;
struct hmac_ctx ctx;
struct hmac_state state;
if (out == NULL) {
*outlen = params->hash->impl->hashlen;
return 1;
}
return hmac_init(&ctx, initparams) &&
hmac_update(&ctx, in, inlen) &&
hmac_final(&ctx, out, outlen);
return hmac_init(&state, initparams) &&
hmac_update(&state, in, inlen) &&
hmac_final(&state, out, outlen);
}
@ -121,7 +122,7 @@ static struct lc_auth_impl hmac_impl = {
.final = &hmac_final,
.auth = &hmac_auth,
.argsz = sizeof(struct hmac_ctx),
.argsz = sizeof(struct hmac_state),
.blocklen = 0,
.taglen = 0,
};