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https://github.com/gnss-sdr/gnss-sdr
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Add work on crypto functions
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@ -51,6 +51,7 @@ namespace wht = std;
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#include <openssl/evp.h>
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#include <openssl/evp.h>
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#define OPENSSL_ENGINE NULL
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#define OPENSSL_ENGINE NULL
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#else
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#else
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#include <openssl/cmac.h>
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#include <openssl/sha.h>
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#include <openssl/sha.h>
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#endif
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#endif
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#else
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#else
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@ -665,30 +666,27 @@ std::vector<uint8_t> osnma_msg_receiver::computeHMAC_SHA_256(const std::vector<u
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std::vector<uint8_t> output(32);
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std::vector<uint8_t> output(32);
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#if USE_OPENSSL_FALLBACK
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#if USE_OPENSSL_FALLBACK
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#if USE_OPENSSL_3
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#if USE_OPENSSL_3
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std::vector<uint8_t> hmac(SHA256_DIGEST_LENGTH); // HMAC-SHA256 output size
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std::vector<uint8_t> hmac(EVP_MAX_MD_SIZE);
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// Create HMAC context
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// Create HMAC-SHA256 context
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EVP_MD_CTX* ctx = EVP_MD_CTX_new();
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EVP_MD_CTX* ctx = EVP_MD_CTX_new();
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HMAC_CTX_reset(ctx);
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EVP_PKEY* pkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, nullptr, key.data(), key.size());
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// Initialize HMAC context with the key and HMAC algorithm
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// Initialize HMAC-SHA256 context
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HMAC_Init_ex(ctx, key.data(), key.size(), EVP_sha256(), nullptr);
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EVP_DigestSignInit(ctx, nullptr, EVP_sha256(), nullptr, pkey);
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// Update HMAC context with the message
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// Compute HMAC-SHA256
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HMAC_Update(ctx, input.data(), input.size());
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EVP_DigestSignUpdate(ctx, input.data(), input.size());
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size_t macLength;
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EVP_DigestSignFinal(ctx, hmac.data(), &macLength);
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// Finalize HMAC computation and obtain the result
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EVP_PKEY_free(pkey);
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unsigned int hmacLen;
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HMAC_Final(ctx, hmac.data(), &hmacLen);
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// Clean up HMAC context
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EVP_MD_CTX_free(ctx);
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EVP_MD_CTX_free(ctx);
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// Resize the HMAC vector to the actual length
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mac.resize(macLength);
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hmac.resize(hmacLen);
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output = hmac;
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output = hmac;
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#else
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#else
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std::vector<uint8_t> hmac(SHA256_DIGEST_LENGTH);
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std::vector<uint8_t> hmac(32);
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// Create HMAC context
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// Create HMAC context
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HMAC_CTX* ctx = HMAC_CTX_new();
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HMAC_CTX* ctx = HMAC_CTX_new();
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HMAC_Init_ex(ctx, key.data(), key.size(), EVP_sha256(), nullptr);
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HMAC_Init_ex(ctx, key.data(), key.size(), EVP_sha256(), nullptr);
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@ -727,7 +725,45 @@ std::vector<uint8_t> osnma_msg_receiver::computeCMAC_AES(const std::vector<uint8
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std::vector<uint8_t> output(16);
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std::vector<uint8_t> output(16);
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#if USE_OPENSSL_FALLBACK
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#if USE_OPENSSL_FALLBACK
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#if USE_OPENSSL_3
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#if USE_OPENSSL_3
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std::vector<uint8_t> mac(EVP_MAX_MD_SIZE); // CMAC-AES output size
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EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new();
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// Initialize CMAC-AES context
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EVP_CIPHER_CTX* cmacCtx = EVP_CIPHER_CTX_new();
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EVP_CMAC_CTX* cmac = EVP_CMAC_CTX_new();
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EVP_CIPHER_CTX_reset(ctx);
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EVP_CMAC_CTX_reset(cmac);
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// Set AES-128 CMAC cipher and key
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EVP_CMAC_init(cmac, key.data(), key.size(), EVP_aes_128_cbc(), nullptr);
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// Compute CMAC-AES
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EVP_CMAC_update(cmac, input.data(), input.size());
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size_t macLength;
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EVP_CMAC_final(cmac, mac.data(), &macLength);
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EVP_CIPHER_CTX_free(ctx);
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EVP_CMAC_CTX_free(cmac);
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mac.resize(macLength);
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output = mac;
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#else
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#else
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std::vector<uint8_t> mac(CMAC_DIGEST_LENGTH); // CMAC-AES output size
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// Create CMAC context
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CMAC_CTX* cmacCtx = CMAC_CTX_new();
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CMAC_Init(cmacCtx, key.data(), key.size(), EVP_aes_128_cbc(), nullptr);
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// Compute CMAC-AES
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CMAC_Update(cmacCtx, input.data(), input.size());
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CMAC_Final(cmacCtx, mac.data(), nullptr);
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// Clean up CMAC context
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CMAC_CTX_free(cmacCtx);
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output = mac;
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#endif
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#endif
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#else
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#else
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gnutls_cipher_hd_t cipher;
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gnutls_cipher_hd_t cipher;
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