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@ -1,9 +1,84 @@
@@ -1,9 +1,84 @@
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#include <string.h> |
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#include "Log.h" |
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#include "CryptoKey.h" |
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namespace i2p |
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{ |
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namespace crypto |
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{ |
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ElGamalEncryptor::ElGamalEncryptor (const uint8_t * pub) |
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{ |
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memcpy (m_PublicKey, pub, 256); |
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} |
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void ElGamalEncryptor::Encrypt (const uint8_t * data, uint8_t * encrypted) |
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{ |
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BN_CTX * ctx = BN_CTX_new (); |
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ElGamalEncrypt (m_PublicKey, data, encrypted, ctx, true); |
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BN_CTX_free (ctx); |
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} |
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ElGamalDecryptor::ElGamalDecryptor (const uint8_t * priv) |
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{ |
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memcpy (m_PrivateKey, priv, 256); |
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} |
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void ElGamalDecryptor::Decrypt (const uint8_t * encrypted, uint8_t * data) |
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{ |
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BN_CTX * ctx = BN_CTX_new (); |
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ElGamalDecrypt (m_PrivateKey, encrypted, data, ctx, true); |
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BN_CTX_free (ctx); |
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} |
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ECIESP256Encryptor::ECIESP256Encryptor (const uint8_t * pub) |
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{ |
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m_Curve = EC_GROUP_new_by_curve_name (NID_X9_62_prime256v1); |
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m_PublicKey = EC_POINT_new (m_Curve); |
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BIGNUM * x = BN_bin2bn (pub, 32, nullptr); |
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BIGNUM * y = BN_bin2bn (pub + 32, 32, nullptr); |
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if (!EC_POINT_set_affine_coordinates_GFp (m_Curve, m_PublicKey, x, y, nullptr)) |
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LogPrint (eLogError, "ECICS P256 invalid public key"); |
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BN_free (x); BN_free (y); |
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} |
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ECIESP256Encryptor::~ECIESP256Encryptor () |
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{ |
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if (m_Curve) EC_GROUP_free (m_Curve); |
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if (m_PublicKey) EC_POINT_free (m_PublicKey); |
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} |
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void ECIESP256Encryptor::Encrypt (const uint8_t * data, uint8_t * encrypted) |
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{ |
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if (m_Curve && m_PublicKey) |
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{ |
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BN_CTX * ctx = BN_CTX_new (); |
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ECIESEncrypt (m_Curve, m_PublicKey, data, encrypted, ctx); |
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BN_CTX_free (ctx); |
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} |
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} |
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ECIESP256Decryptor::ECIESP256Decryptor (const uint8_t * priv) |
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{ |
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m_Curve = EC_GROUP_new_by_curve_name (NID_X9_62_prime256v1); |
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m_PrivateKey = BN_bin2bn (priv, 32, nullptr); |
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} |
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ECIESP256Decryptor::~ECIESP256Decryptor () |
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{ |
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if (m_Curve) EC_GROUP_free (m_Curve); |
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if (m_PrivateKey) BN_free (m_PrivateKey); |
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} |
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void ECIESP256Decryptor::Decrypt (const uint8_t * encrypted, uint8_t * data) |
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{ |
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if (m_Curve && m_PrivateKey) |
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{ |
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BN_CTX * ctx = BN_CTX_new (); |
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ECIESDecrypt (m_Curve, m_PrivateKey, encrypted, data, ctx); |
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BN_CTX_free (ctx); |
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} |
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} |
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void CreateECIESP256RandomKeys (uint8_t * priv, uint8_t * pub) |
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{ |
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EC_GROUP * curve = EC_GROUP_new_by_curve_name (NID_X9_62_prime256v1); |
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