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Code Issues Releases Wiki Activity

Add work on OSNMA receiver

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This commit is contained in:
Carles Fernandez 2023-06-12 16:04:05 +02:00
parent 2debff6307
commit 7ca6c42f7b
No known key found for this signature in database
GPG Key ID: 4C583C52B0C3877D
1 changed files with 14 additions and 9 deletions
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23
src/core/system_parameters/gnss_crypto.cc
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@ -344,7 +344,7 @@ bool Gnss_Crypto::verify_signature(const std::vector<uint8_t>& message, const st
#if USE_OPENSSL_FALLBACK #if USE_OPENSSL_FALLBACK
#if USE_OPENSSL_3 #if USE_OPENSSL_3
EVP_PKEY_CTX* ctx; EVP_PKEY_CTX* ctx;
ctx = EVP_PKEY_CTX_new(d_PublicKey, NULL /* no engine */); ctx = EVP_PKEY_CTX_new(d_PublicKey, nullptr /* no engine */);
bool do_operation = true; bool do_operation = true;
if (!ctx) if (!ctx)
{ {
@ -367,6 +367,10 @@ bool Gnss_Crypto::verify_signature(const std::vector<uint8_t>& message, const st
{ {
success = true; success = true;
} }
else
{
std::cerr << "OpenSSL: message authentication failed" << std::endl;
}
#else #else
auto digest = this->computeSHA256(message); auto digest = this->computeSHA256(message);
int verification = ECDSA_verify(0, digest.data(), SHA256_DIGEST_LENGTH, signature.data(), static_cast<int>(signature.size()), d_PublicKey); int verification = ECDSA_verify(0, digest.data(), SHA256_DIGEST_LENGTH, signature.data(), static_cast<int>(signature.size()), d_PublicKey);
@ -378,16 +382,13 @@ bool Gnss_Crypto::verify_signature(const std::vector<uint8_t>& message, const st
{ {
std::cerr << "OpenSSL: invalid signature found when verifying message" << std::endl; std::cerr << "OpenSSL: invalid signature found when verifying message" << std::endl;
} }
else
{
std::cerr << "OpenSSL: message authentication failed" << std::endl;
}
#endif #endif
#else #else
// Verify the dummy hash using the public key
gnutls_datum_t dummyHash = {nullptr, 0};
int ret2 = gnutls_pubkey_verify_hash2(d_PublicKey, GNUTLS_SIGN_ECDSA_SHA256, 0, &dummyHash, &dummyHash);
if (ret2 != GNUTLS_E_SUCCESS)
{
std::cout << "GnuTLS: The Public Key is invalid" << std::endl;
}
gnutls_datum_t signature_{}; gnutls_datum_t signature_{};
signature_.data = const_cast<uint8_t*>(signature.data()); signature_.data = const_cast<uint8_t*>(signature.data());
signature_.size = signature.size(); signature_.size = signature.size();
@ -395,10 +396,14 @@ bool Gnss_Crypto::verify_signature(const std::vector<uint8_t>& message, const st
data_.data = const_cast<uint8_t*>(message.data()); data_.data = const_cast<uint8_t*>(message.data());
data_.size = message.size(); data_.size = message.size();
int ret = gnutls_pubkey_verify_data2(d_PublicKey, GNUTLS_SIGN_ECDSA_SHA256, 0, &data_, &signature_); int ret = gnutls_pubkey_verify_data2(d_PublicKey, GNUTLS_SIGN_ECDSA_SHA256, 0, &data_, &signature_);
if (ret == GNUTLS_E_SUCCESS) if (ret >= 0)
{ {
success = true; success = true;
} }
else
{
std::cerr << "GnuTLS: message authentication failed" << std::endl;
}
#endif #endif
return success; return success;
} }