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CryptoKey added

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orignal 2017-11-06 13:40:58 -05:00
parent b3c836f298
commit efacfced45
6 changed files with 56 additions and 26 deletions
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8
libi2pd/Crypto.cpp
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@ -372,8 +372,8 @@ namespace crypto
BN_CTX_free (ctx);
}
// ECICS
void ECICSEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx)
// ECIES
void ECIESEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx)
{
BN_CTX_start (ctx);
BIGNUM * q = BN_CTX_get (ctx);
@ -410,7 +410,7 @@ namespace crypto
BN_CTX_end (ctx);
}
bool ECICSDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx)
bool ECIESDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx)
{
bool ret = true;
BN_CTX_start (ctx);
@ -460,7 +460,7 @@ namespace crypto
return ret;
}
void GenerateECICSKeyPair (const EC_GROUP * curve, BIGNUM *& priv, EC_POINT *& pub)
void GenerateECIESKeyPair (const EC_GROUP * curve, BIGNUM *& priv, EC_POINT *& pub)
{
BN_CTX * ctx = BN_CTX_new ();
BIGNUM * q = BN_new ();

8
libi2pd/Crypto.h
View File

@ -52,10 +52,10 @@ namespace crypto
bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding = false);
void GenerateElGamalKeyPair (uint8_t * priv, uint8_t * pub);
// ECICS
void ECICSEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx); // 222 bytes data, 512 bytes encrypted
bool ECICSDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx);
void GenerateECICSKeyPair (const EC_GROUP * curve, BIGNUM *& priv, EC_POINT *& pub);
// ECIES
void ECIESEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx); // 222 bytes data, 512 bytes encrypted
bool ECIESDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx);
void GenerateECIESKeyPair (const EC_GROUP * curve, BIGNUM *& priv, EC_POINT *& pub);
// HMAC
typedef i2p::data::Tag<32> MACKey;

27
libi2pd/CryptoKey.cpp Normal file
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@ -0,0 +1,27 @@
#include "CryptoKey.h"
namespace i2p
{
namespace crypto
{
void CreateECIESP256RandomKeys (uint8_t * priv, uint8_t * pub)
{
EC_GROUP * curve = EC_GROUP_new_by_curve_name (NID_X9_62_prime256v1);
EC_POINT * p = nullptr;
BIGNUM * key = nullptr;
GenerateECIESKeyPair (curve, key, p);
bn2buf (key, priv, 32);
RAND_bytes (priv + 32, 224);
BN_free (key);
BIGNUM * x = BN_new (), * y = BN_new ();
EC_POINT_get_affine_coordinates_GFp (curve, p, x, y, NULL);
bn2buf (x, pub, 32);
bn2buf (y, pub + 32, 32);
RAND_bytes (priv + 64, 192);
EC_POINT_free (p);
BN_free (x); BN_free (y);
EC_GROUP_free (curve);
}
}
}

16
libi2pd/CryptoKey.h Normal file
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@ -0,0 +1,16 @@
#ifndef CRYPTO_KEY_H__
#define CRYPTO_KEY_H__
#include <inttypes.h>
#include "Crypto.h"
namespace i2p
{
namespace crypto
{
void CreateECIESP256RandomKeys (uint8_t * priv, uint8_t * pub);
}
}
#endif

21
libi2pd/Identity.cpp
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@ -1,6 +1,7 @@
#include <time.h>
#include <stdio.h>
#include "Crypto.h"
#include "CryptoKey.h"
#include "I2PEndian.h"
#include "Log.h"
#include "Identity.h"
@ -627,24 +628,8 @@ namespace data
i2p::crypto::GenerateElGamalKeyPair(priv, pub);
break;
case CRYPTO_KEY_TYPE_ECICS_P256_SHA256_AES256CBC:
{
EC_GROUP * curve = EC_GROUP_new_by_curve_name (NID_X9_62_prime256v1);
EC_POINT * p = nullptr;
BIGNUM * key = nullptr;
i2p::crypto::GenerateECICSKeyPair (curve, key, p);
i2p::crypto::bn2buf (key, priv, 32);
RAND_bytes (priv + 32, 224);
BN_free (key);
BIGNUM * x = BN_new (), * y = BN_new ();
EC_POINT_get_affine_coordinates_GFp (curve, p, x, y, NULL);
i2p::crypto::bn2buf (x, pub, 32);
i2p::crypto::bn2buf (y, pub + 32, 32);
RAND_bytes (priv + 64, 192);
EC_POINT_free (p);
BN_free (x); BN_free (y);
EC_GROUP_free (curve);
break;
}
i2p::crypto::CreateECIESP256RandomKeys (priv, pub);
break;
default:
LogPrint (eLogError, "Identity: Crypto key type ", (int)type, " is not supported");
}

2
qt/i2pd_qt/i2pd_qt.pro
View File

@ -30,6 +30,7 @@ SOURCES += DaemonQT.cpp mainwindow.cpp \
../../libi2pd/BloomFilter.cpp \
../../libi2pd/Config.cpp \
../../libi2pd/Crypto.cpp \
../../libi2pd/CryptoKey.cpp \
../../libi2pd/Datagram.cpp \
../../libi2pd/Destination.cpp \
../../libi2pd/Event.cpp \
@ -107,6 +108,7 @@ HEADERS += DaemonQT.h mainwindow.h \
../../libi2pd/BloomFilter.h \
../../libi2pd/Config.h \
../../libi2pd/Crypto.h \
../../libi2pd/CryptoKey.h \
../../libi2pd/Datagram.h \
../../libi2pd/Destination.h \
../../libi2pd/Event.h \