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X25519Keys for static key

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orignal 2018-09-08 22:08:08 -04:00
parent 1babd3a5a2
commit a8b1a86bd7
6 changed files with 37 additions and 16 deletions
libi2pd
Crypto.cpp

17
libi2pd/Crypto.cpp
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@ -286,6 +286,19 @@ namespace crypto
m_Ctx = BN_CTX_new ();
#endif
}
X25519Keys::X25519Keys (const uint8_t * priv, const uint8_t * pub)
{
#if OPENSSL_X25519
m_Pkey = EVP_PKEY_new_raw_private_key (EVP_PKEY_X25519, NULL, priv, 32);
m_Ctx = EVP_PKEY_CTX_new (m_Pkey, NULL);
memcpy (m_PublicKey, pub, 32); // TODO: verify against m_Pkey
#else
memcpy (m_PrivateKey, priv, 32);
memcpy (m_PublicKey, pub, 32);
m_Ctx = BN_CTX_new ();
#endif
}
X25519Keys::~X25519Keys ()
{
@ -304,11 +317,13 @@ namespace crypto
m_Pkey = nullptr;
EVP_PKEY_keygen_init (m_Ctx);
EVP_PKEY_keygen (m_Ctx, &m_Pkey);
EVP_PKEY_CTX_free (m_Ctx);
m_Ctx = EVP_PKEY_CTX_new (m_Pkey, NULL); // TODO: do we really need to re-create m_Ctx?
size_t len = 32;
EVP_PKEY_get_raw_public_key (m_Pkey, m_PublicKey, &len);
// TODO: remove
len = 32;
EVP_PKEY_get_raw_private_key (m_EphemeralPkey, m_PrivateKey, &len);
EVP_PKEY_get_raw_private_key (m_Pkey, m_PrivateKey, &len);
#else
RAND_bytes (m_PrivateKey, 32);
GetEd25519 ()->ScalarMulB (m_PrivateKey, m_PublicKey, m_Ctx);