I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#include <cryptopp/sha.h>
#include <cryptopp/osrng.h>
#include <cryptopp/dh.h>
#include <cryptopp/dsa.h>
#include "CryptoConst.h"
#include "Identity.h"
namespace i2p
{
namespace data
{
Identity& Identity::operator=(const Keys& keys)
{
// copy public and signing keys together
memcpy (publicKey, keys.publicKey, sizeof (publicKey) + sizeof (signingKey));
memset (certificate, 0, sizeof (certificate));
return *this;
}
IdentHash CalculateIdentHash (const Identity& identity)
{
IdentHash hash;
CryptoPP::SHA256().CalculateDigest((uint8_t *)hash, (uint8_t *)&identity, sizeof (Identity));
return hash;
}
Keys CreateRandomKeys ()
{
Keys keys;
CryptoPP::AutoSeededRandomPool rnd;
// encryption
CryptoPP::DH dh (i2p::crypto::elgp, i2p::crypto::elgg);
dh.GenerateKeyPair(rnd, keys.privateKey, keys.publicKey);
// signing
CryptoPP::DSA::PrivateKey privateKey;
CryptoPP::DSA::PublicKey publicKey;
privateKey.Initialize (rnd, i2p::crypto::dsap, i2p::crypto::dsaq, i2p::crypto::dsag);
privateKey.MakePublicKey (publicKey);
privateKey.GetPrivateExponent ().Encode (keys.signingPrivateKey, 20);
publicKey.GetPublicElement ().Encode (keys.signingKey, 128);
return keys;
}
}
}