1 /* 2 * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #ifndef OSSL_PROV_HMAC_DRBG_H 11 #define OSSL_PROV_HMAC_DRBG_H 12 #pragma once 13 14 #include <openssl/evp.h> 15 #include "prov/provider_util.h" 16 17 typedef struct drbg_hmac_st { 18 EVP_MAC_CTX *ctx; /* H(x) = HMAC_hash OR H(x) = KMAC */ 19 PROV_DIGEST digest; /* H(x) = hash(x) */ 20 size_t blocklen; 21 unsigned char K[EVP_MAX_MD_SIZE]; 22 unsigned char V[EVP_MAX_MD_SIZE]; 23 } PROV_DRBG_HMAC; 24 25 int ossl_drbg_hmac_init(PROV_DRBG_HMAC *drbg, 26 const unsigned char *ent, size_t ent_len, 27 const unsigned char *nonce, size_t nonce_len, 28 const unsigned char *pstr, size_t pstr_len); 29 int ossl_drbg_hmac_generate(PROV_DRBG_HMAC *hmac, 30 unsigned char *out, size_t outlen, 31 const unsigned char *adin, size_t adin_len); 32 33 #endif /* OSSL_PROV_HMAC_DRBG_H */ 34
Indexes created Sat Feb 28 05:31:39 UTC 2026