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moved ML-KEM code to PostQuntum.h/.cpp

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orignal 2025-04-14 18:21:07 -04:00
parent 459be02d18
commit 4c5d0116f8
7 changed files with 201 additions and 163 deletions
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81
libi2pd/Crypto.cpp
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@ -1008,86 +1008,5 @@ namespace crypto
/* CRYPTO_set_locking_callback (nullptr);
m_OpenSSLMutexes.clear ();*/
}
#if OPENSSL_PQ
MLKEMKeys::MLKEMKeys (std::string_view name, size_t keyLen, size_t ctLen):
m_Name (name), m_KeyLen (keyLen), m_CTLen (ctLen),m_Pkey (nullptr)
{
}
MLKEMKeys::~MLKEMKeys ()
{
if (m_Pkey) EVP_PKEY_free (m_Pkey);
}
void MLKEMKeys::GenerateKeys ()
{
if (m_Pkey) EVP_PKEY_free (m_Pkey);
m_Pkey = EVP_PKEY_Q_keygen(NULL, NULL, m_Name.c_str ());
}
void MLKEMKeys::GetPublicKey (uint8_t * pub) const
{
if (m_Pkey)
{
size_t len = m_KeyLen;
EVP_PKEY_get_octet_string_param (m_Pkey, OSSL_PKEY_PARAM_PUB_KEY, pub, m_KeyLen, &len);
}
}
void MLKEMKeys::SetPublicKey (const uint8_t * pub)
{
if (m_Pkey)
{
EVP_PKEY_free (m_Pkey);
m_Pkey = nullptr;
}
OSSL_PARAM params[] =
{
OSSL_PARAM_octet_string (OSSL_PKEY_PARAM_PUB_KEY, (uint8_t *)pub, m_KeyLen),
OSSL_PARAM_END
};
EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name (NULL, m_Name.c_str (), NULL);
if (ctx)
{
EVP_PKEY_fromdata_init (ctx);
EVP_PKEY_fromdata (ctx, &m_Pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY, params);
EVP_PKEY_CTX_free (ctx);
}
else
LogPrint (eLogError, "MLKEM512 can't create PKEY context");
}
void MLKEMKeys::Encaps (uint8_t * ciphertext, uint8_t * shared)
{
if (!m_Pkey) return;
auto ctx = EVP_PKEY_CTX_new_from_pkey (NULL, m_Pkey, NULL);
if (ctx)
{
EVP_PKEY_encapsulate_init (ctx, NULL);
size_t len = m_CTLen, sharedLen = 32;
EVP_PKEY_encapsulate (ctx, ciphertext, &len, shared, &sharedLen);
EVP_PKEY_CTX_free (ctx);
}
else
LogPrint (eLogError, "MLKEM512 can't create PKEY context");
}
void MLKEMKeys::Decaps (const uint8_t * ciphertext, uint8_t * shared)
{
if (!m_Pkey) return;
auto ctx = EVP_PKEY_CTX_new_from_pkey (NULL, m_Pkey, NULL);
if (ctx)
{
EVP_PKEY_decapsulate_init (ctx, NULL);
size_t sharedLen = 32;
EVP_PKEY_decapsulate (ctx, shared, &sharedLen, ciphertext, m_CTLen);
EVP_PKEY_CTX_free (ctx);
}
else
LogPrint (eLogError, "MLKEM512 can't create PKEY context");
}
#endif
}
}