Lines Matching defs:hmac

46  * hmac is an object that holds the input/output Key and Value (K and V).
52  *   hmac->K = HMAC(hmac->K, hmac->V || inbyte || [in1] || [in2] || [in3])
53  *   hmac->V = HMAC(hmac->K, hmac->V)
57 static int do_hmac(PROV_DRBG_HMAC *hmac, unsigned char inbyte,
62     EVP_MAC_CTX *ctx = hmac->ctx;
64     if (!EVP_MAC_init(ctx, hmac->K, hmac->blocklen, NULL)
66             || !EVP_MAC_update(ctx, hmac->V, hmac->blocklen)
71             || !EVP_MAC_final(ctx, hmac->K, NULL, sizeof(hmac->K)))
75     return EVP_MAC_init(ctx, hmac->K, hmac->blocklen, NULL)
76            && EVP_MAC_update(ctx, hmac->V, hmac->blocklen)
77            && EVP_MAC_final(ctx, hmac->V, NULL, sizeof(hmac->V));
85  *   K,V = do_hmac(hmac, 0, in1, in2, in3)
87  *     K,V = do_hmac(hmac, 1, in1, in2, in3)
99     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)drbg->data;
102     if (!do_hmac(hmac, 0x00, in1, in1len, in2, in2len, in3, in3len))
108     return do_hmac(hmac, 0x01, in1, in1len, in2, in2len, in3, in3len);
127     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)drbg->data;
129     if (hmac->ctx == NULL) {
135     memset(hmac->K, 0x00, hmac->blocklen);
137     memset(hmac->V, 0x01, hmac->blocklen);
198     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)drbg->data;
199     EVP_MAC_CTX *ctx = hmac->ctx;
200     const unsigned char *temp = hmac->V;
216         if (!EVP_MAC_init(ctx, hmac->K, hmac->blocklen, NULL)
217             || !EVP_MAC_update(ctx, temp, hmac->blocklen))
220         if (outlen > hmac->blocklen) {
225             if (!EVP_MAC_final(ctx, hmac->V, NULL, sizeof(hmac->V)))
227             memcpy(out, hmac->V, outlen);
230         out += hmac->blocklen;
231         outlen -= hmac->blocklen;
252     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)drbg->data;
254     OPENSSL_cleanse(hmac->K, sizeof(hmac->K));
255     OPENSSL_cleanse(hmac->V, sizeof(hmac->V));
267     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)drbg->data;
269     PROV_DRBG_VERYIFY_ZEROIZATION(hmac->K);
270     PROV_DRBG_VERYIFY_ZEROIZATION(hmac->V);
276     PROV_DRBG_HMAC *hmac;
278     hmac = OPENSSL_secure_zalloc(sizeof(*hmac));
279     if (hmac == NULL) {
284     drbg->data = hmac;
308     PROV_DRBG_HMAC *hmac;
310     if (drbg != NULL && (hmac = (PROV_DRBG_HMAC *)drbg->data) != NULL) {
311         EVP_MAC_CTX_free(hmac->ctx);
312         ossl_prov_digest_reset(&hmac->digest);
313         OPENSSL_secure_clear_free(hmac, sizeof(*hmac));
321     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)drbg->data;
328         if (hmac->ctx == NULL)
330         name = EVP_MAC_get0_name(EVP_MAC_CTX_get0_mac(hmac->ctx));
337         md = ossl_prov_digest_md(&hmac->digest);
360     PROV_DRBG_HMAC *hmac = (PROV_DRBG_HMAC *)ctx->data;
364     if (!ossl_prov_digest_load_from_params(&hmac->digest, params, libctx))
372     md = ossl_prov_digest_md(&hmac->digest);
378     if (!ossl_prov_macctx_load_from_params(&hmac->ctx, params,
382     if (hmac->ctx != NULL) {
384         hmac->blocklen = EVP_MD_get_size(md);
386         ctx->strength = 64 * (int)(hmac->blocklen >> 3);
389         ctx->seedlen = hmac->blocklen;