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different ElGamal and ECIES hops configs

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orignal 2021-07-02 15:41:33 -04:00
parent 8b35ce3320
commit 0ae170531e
2 changed files with 99 additions and 65 deletions
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42
libi2pd/TunnelConfig.h
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@ -18,7 +18,7 @@ namespace i2p
{
namespace tunnel
{
struct TunnelHopConfig: public i2p::crypto::NoiseSymmetricState
struct TunnelHopConfig
{
std::shared_ptr<const i2p::data::IdentityEx> ident;
i2p::data::IdentHash nextIdent;
@ -33,18 +33,42 @@ namespace tunnel
int recordIndex; // record # in tunnel build message
TunnelHopConfig (std::shared_ptr<const i2p::data::IdentityEx> r);
virtual ~TunnelHopConfig () {};
void SetNextIdent (const i2p::data::IdentHash& ident);
void SetReplyHop (uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent);
void SetNext (TunnelHopConfig * n);
void SetPrev (TunnelHopConfig * p);
bool IsECIES () const { return ident->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD; };
void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID, BN_CTX * ctx);
void EncryptECIES (std::shared_ptr<i2p::crypto::CryptoKeyEncryptor>& encryptor,
const uint8_t * clearText, uint8_t * encrypted, BN_CTX * ctx);
bool DecryptBuildResponseRecord (const uint8_t * encrypted, uint8_t * clearText);
virtual bool IsECIES () const { return false; };
virtual void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID, BN_CTX * ctx) = 0;
virtual bool DecryptBuildResponseRecord (const uint8_t * encrypted, uint8_t * clearText) = 0;
};
struct ElGamalTunnelHopConfig: public TunnelHopConfig
{
ElGamalTunnelHopConfig (std::shared_ptr<const i2p::data::IdentityEx> r):
TunnelHopConfig (r) {};
void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID, BN_CTX * ctx);
bool DecryptBuildResponseRecord (const uint8_t * encrypted, uint8_t * clearText);
};
struct ECIESTunnelHopConfig: public TunnelHopConfig, public i2p::crypto::NoiseSymmetricState
{
ECIESTunnelHopConfig (std::shared_ptr<const i2p::data::IdentityEx> r):
TunnelHopConfig (r) {};
bool IsECIES () const { return true; };
void EncryptECIES (std::shared_ptr<i2p::crypto::CryptoKeyEncryptor>& encryptor,
const uint8_t * clearText, uint8_t * encrypted, BN_CTX * ctx);
};
struct LongECIESTunnelHopConfig: public ECIESTunnelHopConfig
{
LongECIESTunnelHopConfig (std::shared_ptr<const i2p::data::IdentityEx> r):
ECIESTunnelHopConfig (r) {};
void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID, BN_CTX * ctx);
bool DecryptBuildResponseRecord (const uint8_t * encrypted, uint8_t * clearText);
};
class TunnelConfig
{
@ -154,7 +178,11 @@ namespace tunnel
TunnelHopConfig * prev = nullptr;
for (const auto& it: peers)
{
auto hop = new TunnelHopConfig (it);
TunnelHopConfig * hop;
if (it->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD)
hop = new LongECIESTunnelHopConfig (it);
else
hop = new ElGamalTunnelHopConfig (it);
if (prev)
prev->SetNext (hop);
else