Merge pull request #832 from PurpleI2P/openssl

recent changes

Config.cpp

@@ -185,7 +185,8 @@ namespace config {
 	    "https://reseed.atomike.ninja/,"
 	    "https://reseed.memcpy.io/,"
 	    "https://reseed.onion.im/,"
-	    "https://itoopie.atomike.ninja/"
+	    "https://itoopie.atomike.ninja/,"
+		"https://randomrng.ddns.net/"	                                                      
 		),  "Reseed URLs, separated by comma")
 	  ;	
 
@@ -210,6 +211,13 @@ namespace config {
       ("websockets.address", value<std::string>()->default_value("127.0.0.1"), "address to bind websocket server on")
       ("websockets.port", value<uint16_t>()->default_value(7666), "port to bind websocket server on");
 
+	options_description exploratory("Exploratory Options");
+	exploratory.add_options()
+	  ("exploratory.inbound.length",      value<int>()->default_value(2),  "Exploratory inbound tunnel length")	
+	  ("exploratory.outbound.length",     value<int>()->default_value(2),  "Exploratory outbound tunnel length")
+	  ("exploratory.inbound.quantity",    value<int>()->default_value(3),  "Exploratory inbound tunnels quantity")	
+	  ("exploratory.outbound.quantity",   value<int>()->default_value(3),  "Exploratory outbound tunnels quantity");	
+
     m_OptionsDesc
       .add(general)
 	  .add(limits)	
@@ -226,6 +234,7 @@ namespace config {
       .add(addressbook)	
       .add(trust)
       .add(websocket)
+	  .add(exploratory)
       ;
   }
 

Crypto.cpp

@@ -272,11 +272,15 @@ namespace crypto
 	}	
 	
 // ElGamal
-	void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted, bool zeroPadding)
+	void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding)
-	{
+	{
-		BN_CTX * ctx = BN_CTX_new ();
+		BN_CTX_start (ctx);
+		// everything, but a, because a might come from table	
+		BIGNUM * k = BN_CTX_get (ctx);
+		BIGNUM * y = BN_CTX_get (ctx);
+		BIGNUM * b1 = BN_CTX_get (ctx);
+		BIGNUM * b = BN_CTX_get (ctx);
 		// select random k
-		BIGNUM * k = BN_new ();
 #if defined(__x86_64__)
 		BN_rand (k, ELGAMAL_FULL_EXPONENT_NUM_BITS, -1, 1); // full exponent for x64
 #else
@@ -292,23 +296,18 @@ namespace crypto
 			BN_mod_exp (a, elgg, k, elgp, ctx);
 		}
 
-		BIGNUM * y = BN_new ();
+		// restore y from key
 		BN_bin2bn (key, 256, y);
 		// calculate b1
-		BIGNUM * b1 = BN_new ();
 		BN_mod_exp (b1, y, k, elgp, ctx);
-		BN_free (y);
-		BN_free (k);
 		// create m
 		uint8_t m[255];
 		m[0] = 0xFF;
 		memcpy (m+33, data, 222);
 		SHA256 (m+33, 222, m+1);
 		// calculate b = b1*m mod p
-		BIGNUM * b = BN_new ();
 		BN_bin2bn (m, 255, b);
 		BN_mod_mul (b, b1, b, elgp, ctx);
-		BN_free (b1);
 		// copy a and b
 		if (zeroPadding)
 		{
@@ -322,16 +321,15 @@ namespace crypto
 			bn2buf (a, encrypted, 256);
 			bn2buf (b, encrypted + 256, 256);
 		}		
-		BN_free (b);
 		BN_free (a);
-		BN_CTX_free (ctx);
+		BN_CTX_end (ctx);
 	}
 
 	bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, 
-		uint8_t * data, bool zeroPadding)
+		uint8_t * data, BN_CTX * ctx, bool zeroPadding)
 	{
-		BN_CTX * ctx = BN_CTX_new ();
+		BN_CTX_start (ctx);
-		BIGNUM * x = BN_new (), * a = BN_new (), * b = BN_new ();
+		BIGNUM * x = BN_CTX_get (ctx), * a = BN_CTX_get (ctx), * b = BN_CTX_get (ctx);
 		BN_bin2bn (key, 256, x);
 		BN_sub (x, elgp, x); BN_sub_word (x, 1); // x = elgp - x- 1
 		BN_bin2bn (zeroPadding ? encrypted + 1 : encrypted, 256, a);
@@ -341,8 +339,7 @@ namespace crypto
 		BN_mod_mul (b, b, x, elgp, ctx);	
 		uint8_t m[255];
 		bn2buf (b, m, 255); 
-		BN_free (x); BN_free (a); BN_free (b); 
+		BN_CTX_end (ctx);
-		BN_CTX_free (ctx);
 		uint8_t hash[32];
 		SHA256 (m + 33, 222, hash);
 		if (memcmp (m + 1, hash, 32))
@@ -800,71 +797,7 @@ namespace crypto
 				m_OpenSSLMutexes[type]->unlock ();
 		}	
 	}*/
-
-	static ENGINE * g_GostEngine = nullptr;
-	static const EVP_MD * g_Gost3411 = nullptr;
-	static EVP_PKEY * g_GostPKEY = nullptr;	
 	
-	const EVP_PKEY * GetGostPKEY ()
-	{
-		return g_GostPKEY;
-	}	
-	
-	uint8_t * GOSTR3411 (const uint8_t * buf, size_t len, uint8_t * digest)
-	{
-		if (!g_Gost3411) return nullptr;
-		auto ctx = EVP_MD_CTX_new ();
-		EVP_DigestInit_ex (ctx, g_Gost3411, g_GostEngine);
-		EVP_DigestUpdate (ctx, buf, len);
-		EVP_DigestFinal_ex (ctx, digest, nullptr);
-		EVP_MD_CTX_free (ctx);
-		return digest;
-	}	
-	
-	bool InitGost ()
-	{
-#ifndef OPENSSL_NO_ENGINE
-#if (OPENSSL_VERSION_NUMBER < 0x010100000) || defined(LIBRESSL_VERSION_NUMBER)
-		ENGINE_load_builtin_engines ();
-		ENGINE_load_dynamic ();
-#else
-		OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_ALL_BUILTIN, NULL);
-#endif
-		g_GostEngine = ENGINE_by_id ("gost");
-		if (!g_GostEngine) return false;
-
-		ENGINE_init (g_GostEngine);
-		ENGINE_set_default (g_GostEngine, ENGINE_METHOD_ALL);
-		g_Gost3411 = ENGINE_get_digest(g_GostEngine, NID_id_GostR3411_94);
-
-		auto ctx = EVP_PKEY_CTX_new_id(NID_id_GostR3410_2001, g_GostEngine);
-		if (!ctx) return false;
-		EVP_PKEY_keygen_init (ctx);
-		EVP_PKEY_CTX_ctrl_str (ctx, "paramset", "A"); // possible values 'A', 'B', 'C', 'XA', 'XB'
-		EVP_PKEY_keygen (ctx, &g_GostPKEY);	// it seems only way to fill with correct params
-		EVP_PKEY_CTX_free (ctx);
-		return true;
-#else
-		LogPrint (eLogError, "Can't initialize GOST. Engines are not supported");
-		return false;
-#endif
-	}
-	
-	void TerminateGost ()
-	{
-		if (g_GostPKEY)
-			EVP_PKEY_free (g_GostPKEY);
-#ifndef OPENSSL_NO_ENGINE
-		if (g_GostEngine)
-		{
-			ENGINE_finish (g_GostEngine);
-			ENGINE_free (g_GostEngine);
-#if (OPENSSL_VERSION_NUMBER < 0x010100000) || defined(LIBRESSL_VERSION_NUMBER)
-			ENGINE_cleanup();
-#endif
-		}
-#endif
-	}
 
 	void InitCrypto (bool precomputation, bool withGost)
 	{

Crypto.h

@@ -48,8 +48,8 @@ namespace crypto
 	};	
 	
 	// ElGamal
-	void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted, bool zeroPadding = false);
+	void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding = false);
-	bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, uint8_t * data, bool zeroPadding = false);
+	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);
 
 	// HMAC
@@ -278,12 +278,6 @@ namespace crypto
 			CBCDecryption m_LayerDecryption;
 #endif
 	};	
-
-// GOST
-	bool InitGost ();
-	void TerminateGost ();
-	const EVP_PKEY * GetGostPKEY ();
-	uint8_t * GOSTR3411 (const uint8_t * buf, size_t len, uint8_t * digest); // hash
 	
 	void InitCrypto (bool precomputation, bool withGost = false);
 	void TerminateCrypto ();

Daemon.cpp

@@ -122,7 +122,6 @@ namespace i2p
 			i2p::crypto::InitCrypto (precomputation);
 
 			int netID; i2p::config::GetOption("netid", netID);
-			if (netID != 2)	i2p::crypto::InitGost (); // init GOST for own darknet
 			i2p::context.SetNetID (netID);
 			i2p::context.Init ();
 
@@ -350,7 +349,6 @@ namespace i2p
 				d.m_WebsocketServer = nullptr;
 			}
 #endif
-			if (i2p::context.GetNetID () != 2) i2p::crypto::TerminateGost ();
 			i2p::crypto::TerminateCrypto ();
 			i2p::log::Logger().Stop();
 

Garlic.cpp

@@ -187,7 +187,9 @@ namespace garlic
 			RAND_bytes (elGamal.preIV, 32); // Pre-IV
 			uint8_t iv[32]; // IV is first 16 bytes
 			SHA256(elGamal.preIV, 32, iv); 
-			i2p::crypto::ElGamalEncrypt (m_Destination->GetEncryptionPublicKey (), (uint8_t *)&elGamal, buf, true);			
+			BN_CTX * ctx = BN_CTX_new ();
+			i2p::crypto::ElGamalEncrypt (m_Destination->GetEncryptionPublicKey (), (uint8_t *)&elGamal, buf, ctx, true);	
+			BN_CTX_free (ctx);		
 			m_Encryption.SetIV (iv);
 			buf += 514;
 			len += 514;	
@@ -388,9 +390,15 @@ namespace garlic
 
 		return size;
 	}
-	
+
+	GarlicDestination::GarlicDestination (): m_NumTags (32) // 32 tags by default
+	{
+		m_Ctx = BN_CTX_new ();
+	} 
+		
 	GarlicDestination::~GarlicDestination ()
 	{
+		BN_CTX_free (m_Ctx);
 	}
 
 	void GarlicDestination::CleanUp ()
@@ -446,7 +454,7 @@ namespace garlic
 		{
 			// tag not found. Use ElGamal
 			ElGamalBlock elGamal;
-			if (length >= 514 && i2p::crypto::ElGamalDecrypt (GetEncryptionPrivateKey (), buf, (uint8_t *)&elGamal, true))
+			if (length >= 514 && i2p::crypto::ElGamalDecrypt (GetEncryptionPrivateKey (), buf, (uint8_t *)&elGamal, m_Ctx, true))
 			{	
 				auto decryption = std::make_shared<i2p::crypto::CBCDecryption>();
 				decryption->SetKey (elGamal.sessionKey);

Garlic.h

@@ -153,11 +153,11 @@ namespace garlic
 	{
 		public:
 
-			GarlicDestination (): m_NumTags (32) {}; // 32 tags by default
+			GarlicDestination ();
 			~GarlicDestination ();
 
 			void CleanUp ();
-			void SetNumTags (int numTags) { m_NumTags = numTags; };		
+			void SetNumTags (int numTags) { m_NumTags = numTags; };	
 			std::shared_ptr<GarlicRoutingSession> GetRoutingSession (std::shared_ptr<const i2p::data::RoutingDestination> destination, bool attachLeaseSet);	
 			void CleanupExpiredTags ();
 			void RemoveDeliveryStatusSession (uint32_t msgID);
@@ -188,7 +188,8 @@ namespace garlic
 			void HandleGarlicPayload (uint8_t * buf, size_t len, std::shared_ptr<i2p::tunnel::InboundTunnel> from);
 
 		private:
-			
+
+			BN_CTX * m_Ctx; // incoming
 			// outgoing sessions
 			int m_NumTags;
 			std::mutex m_SessionsMutex;

Gost.cpp

@@ -0,0 +1,447 @@
+#include <string.h>
+#include <array>
+#include <openssl/sha.h>
+#include <openssl/evp.h>
+#include "Gost.h"
+
+namespace i2p
+{
+namespace crypto
+{
+
+// GOST R 34.10
+
+	GOSTR3410Curve::GOSTR3410Curve (BIGNUM * a, BIGNUM * b, BIGNUM * p, BIGNUM * q, BIGNUM * x, BIGNUM * y)
+	{
+		m_KeyLen = BN_num_bytes (p);
+		BN_CTX * ctx = BN_CTX_new ();
+		m_Group = EC_GROUP_new_curve_GFp (p, a, b, ctx);
+		EC_POINT * P = EC_POINT_new (m_Group);
+		EC_POINT_set_affine_coordinates_GFp (m_Group, P, x, y, ctx);
+		EC_GROUP_set_generator (m_Group, P, q, nullptr);
+		EC_GROUP_set_curve_name (m_Group, NID_id_GostR3410_2001);
+		EC_POINT_free(P);
+		BN_CTX_free (ctx);
+	}
+
+	GOSTR3410Curve::~GOSTR3410Curve ()
+	{
+		EC_GROUP_free (m_Group);
+	}				
+
+	EC_POINT * GOSTR3410Curve::MulP (const BIGNUM * n) const
+	{
+		BN_CTX * ctx = BN_CTX_new ();
+		auto p = EC_POINT_new (m_Group);
+		EC_POINT_mul (m_Group, p, n, nullptr, nullptr, ctx);
+		BN_CTX_free (ctx);
+		return p;
+	}
+
+	bool GOSTR3410Curve::GetXY (const EC_POINT * p, BIGNUM * x, BIGNUM * y) const
+	{
+		return EC_POINT_get_affine_coordinates_GFp (m_Group, p, x, y, nullptr);
+	}
+
+	EC_POINT * GOSTR3410Curve::CreatePoint (const BIGNUM * x, const BIGNUM * y) const
+	{
+		EC_POINT * p = EC_POINT_new (m_Group);
+		EC_POINT_set_affine_coordinates_GFp (m_Group, p, x, y, nullptr);
+		return p;
+	}
+
+	void GOSTR3410Curve::Sign (const BIGNUM * priv, const BIGNUM * digest, BIGNUM * r, BIGNUM * s)
+	{
+		BN_CTX * ctx = BN_CTX_new ();
+		BN_CTX_start (ctx);
+		BIGNUM * q = BN_CTX_get (ctx);
+		EC_GROUP_get_order(m_Group, q, ctx);
+		BIGNUM * k = BN_CTX_get (ctx);
+		BN_rand_range (k, q); // 0 < k < q
+		EC_POINT * C = MulP (k); // C = k*P
+		GetXY (C, r, nullptr); // r = Cx
+		EC_POINT_free (C);
+		BN_mod_mul (s, r, priv, q, ctx); // (r*priv)%q
+		BIGNUM * tmp = BN_CTX_get (ctx);
+		BN_mod_mul (tmp, k, digest, q, ctx); // (k*digest)%q
+		BN_mod_add (s, s, tmp, q, ctx); // (r*priv+k*digest)%q
+		BN_CTX_end (ctx);
+		BN_CTX_free (ctx);
+	}
+
+	bool GOSTR3410Curve::Verify (const EC_POINT * pub, const BIGNUM * digest, const BIGNUM * r, const BIGNUM * s)
+	{
+		BN_CTX * ctx = BN_CTX_new ();
+		BN_CTX_start (ctx);
+		BIGNUM * q = BN_CTX_get (ctx);
+		EC_GROUP_get_order(m_Group, q, ctx);
+		BIGNUM * h = BN_CTX_get (ctx);
+		BN_mod (h, digest, q, ctx); // h = digest % q
+		BN_mod_inverse (h, h, q, ctx); // 1/h mod q
+		BIGNUM * z1 = BN_CTX_get (ctx);
+		BN_mod_mul (z1, s, h, q, ctx); // z1 = s/h
+		BIGNUM * z2 = BN_CTX_get (ctx);				
+		BN_sub (z2, q, r); // z2 = -r
+		BN_mod_mul (z2, z2, h, q, ctx); // z2 = -r/h
+		EC_POINT * C = EC_POINT_new (m_Group);
+		EC_POINT_mul (m_Group, C, z1, pub, z2, ctx); // z1*P + z2*pub
+		BIGNUM * x = BN_CTX_get (ctx);	
+		GetXY  (C, x, nullptr); // Cx
+		BN_mod (x, x, q, ctx); // Cx % q
+		bool ret = !BN_cmp (x, r); // Cx = r ?
+		EC_POINT_free (C);
+		BN_CTX_end (ctx);
+		BN_CTX_free (ctx);
+		return ret;
+	}	
+
+	static GOSTR3410Curve * CreateGOSTR3410Curve (GOSTR3410ParamSet paramSet)
+	{
+		// a, b, p, q, x, y	
+		static const char * params[eGOSTR3410NumParamSets][6] = 
+		{
+			{ 
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD94",
+				"A6",
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD97",
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6C611070995AD10045841B09B761B893",
+				"1",
+				"8D91E471E0989CDA27DF505A453F2B7635294F2DDF23E3B122ACC99C9E9F1E14"
+			}, // A
+			{
+				"C2173F1513981673AF4892C23035A27CE25E2013BF95AA33B22C656F277E7335",
+				"295F9BAE7428ED9CCC20E7C359A9D41A22FCCD9108E17BF7BA9337A6F8AE9513",
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD97",
+				"400000000000000000000000000000000FD8CDDFC87B6635C115AF556C360C67",
+				"0D",
+				"32879423AB1A0375895786C4BB46E9565FDE0B5344766740AF268ADB32322E5C"		
+			}, // tc26-2012-paramSetA-256
+			{
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDC4",
+				"E8C2505DEDFC86DDC1BD0B2B6667F1DA34B82574761CB0E879BD081CFD0B6265EE3CB090F30D27614CB4574010DA90DD862EF9D4EBEE4761503190785A71C760",
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFDC7",
+				"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF27E69532F48D89116FF22B8D4E0560609B4B38ABFAD2B85DCACDB1411F10B275",
+				"3",
+				"7503CFE87A836AE3A61B8816E25450E6CE5E1C93ACF1ABC1778064FDCBEFA921DF1626BE4FD036E93D75E6A50E3A41E98028FE5FC235F5B889A589CB5215F2A4"		
+			} // tc26-2012-paramSetA-512
+		};	
+		
+		BIGNUM * a = nullptr, * b = nullptr, * p = nullptr, * q =nullptr, * x = nullptr, * y = nullptr;
+		BN_hex2bn(&a, params[paramSet][0]);
+		BN_hex2bn(&b, params[paramSet][1]);
+		BN_hex2bn(&p, params[paramSet][2]);
+		BN_hex2bn(&q, params[paramSet][3]);
+		BN_hex2bn(&x, params[paramSet][4]);
+		BN_hex2bn(&y, params[paramSet][5]);
+		auto curve = new GOSTR3410Curve (a, b, p, q, x, y);
+		BN_free (a); BN_free (b); BN_free (p); BN_free (q); BN_free (x); BN_free (y);
+		return curve;
+	}	
+
+	static std::array<std::unique_ptr<GOSTR3410Curve>, eGOSTR3410NumParamSets> g_GOSTR3410Curves;
+	std::unique_ptr<GOSTR3410Curve>& GetGOSTR3410Curve (GOSTR3410ParamSet paramSet)
+	{
+		if (!g_GOSTR3410Curves[paramSet])
+		{
+			auto c = CreateGOSTR3410Curve (paramSet);	
+			if (!g_GOSTR3410Curves[paramSet]) // make sure it was not created already
+				g_GOSTR3410Curves[paramSet].reset (c);
+			else
+				delete c;
+		}	
+		return g_GOSTR3410Curves[paramSet]; 
+	}
+
+// ГОСТ 34.11-2012
+
+	static const uint8_t sbox_[256] =
+	{
+		0xFC, 0xEE, 0xDD, 0x11, 0xCF, 0x6E, 0x31, 0x16, 0xFB, 0xC4, 0xFA, 0xDA, 0x23, 0xC5, 0x04, 0x4D,
+		0xE9, 0x77, 0xF0, 0xDB, 0x93, 0x2E, 0x99, 0xBA, 0x17, 0x36, 0xF1, 0xBB, 0x14, 0xCD, 0x5F, 0xC1,
+		0xF9, 0x18, 0x65, 0x5A, 0xE2, 0x5C, 0xEF, 0x21, 0x81, 0x1C, 0x3C, 0x42, 0x8B, 0x01, 0x8E, 0x4F,
+		0x05, 0x84, 0x02, 0xAE, 0xE3, 0x6A, 0x8F, 0xA0, 0x06, 0x0B, 0xED, 0x98, 0x7F, 0xD4, 0xD3, 0x1F,
+		0xEB, 0x34, 0x2C, 0x51, 0xEA, 0xC8, 0x48, 0xAB, 0xF2, 0x2A, 0x68, 0xA2, 0xFD, 0x3A, 0xCE, 0xCC,
+		0xB5, 0x70, 0x0E, 0x56, 0x08, 0x0C, 0x76, 0x12, 0xBF, 0x72, 0x13, 0x47, 0x9C, 0xB7, 0x5D, 0x87,
+		0x15, 0xA1, 0x96, 0x29, 0x10, 0x7B, 0x9A, 0xC7, 0xF3, 0x91, 0x78, 0x6F, 0x9D, 0x9E, 0xB2, 0xB1,
+		0x32, 0x75, 0x19, 0x3D, 0xFF, 0x35, 0x8A, 0x7E, 0x6D, 0x54, 0xC6, 0x80, 0xC3, 0xBD, 0x0D, 0x57,
+		0xDF, 0xF5, 0x24, 0xA9, 0x3E, 0xA8, 0x43, 0xC9, 0xD7, 0x79, 0xD6, 0xF6, 0x7C, 0x22, 0xB9, 0x03,
+		0xE0, 0x0F, 0xEC, 0xDE, 0x7A, 0x94, 0xB0, 0xBC, 0xDC, 0xE8, 0x28, 0x50, 0x4E, 0x33, 0x0A, 0x4A,
+		0xA7, 0x97, 0x60, 0x73, 0x1E, 0x00, 0x62, 0x44, 0x1A, 0xB8, 0x38, 0x82, 0x64, 0x9F, 0x26, 0x41,
+		0xAD, 0x45, 0x46, 0x92, 0x27, 0x5E, 0x55, 0x2F, 0x8C, 0xA3, 0xA5, 0x7D, 0x69, 0xD5, 0x95, 0x3B,
+		0x07, 0x58, 0xB3, 0x40, 0x86, 0xAC, 0x1D, 0xF7, 0x30, 0x37, 0x6B, 0xE4, 0x88, 0xD9, 0xE7, 0x89,
+		0xE1, 0x1B, 0x83, 0x49, 0x4C, 0x3F, 0xF8, 0xFE, 0x8D, 0x53, 0xAA, 0x90, 0xCA, 0xD8, 0x85, 0x61,
+		0x20, 0x71, 0x67, 0xA4, 0x2D, 0x2B, 0x09, 0x5B, 0xCB, 0x9B, 0x25, 0xD0, 0xBE, 0xE5, 0x6C, 0x52,
+		0x59, 0xA6, 0x74, 0xD2, 0xE6, 0xF4, 0xB4, 0xC0, 0xD1, 0x66, 0xAF, 0xC2, 0x39, 0x4B, 0x63, 0xB6
+	};
+
+	static const uint64_t A_[64] = 
+	{
+		0x8e20faa72ba0b470, 0x47107ddd9b505a38, 0xad08b0e0c3282d1c, 0xd8045870ef14980e,
+		0x6c022c38f90a4c07, 0x3601161cf205268d, 0x1b8e0b0e798c13c8, 0x83478b07b2468764,
+		0xa011d380818e8f40, 0x5086e740ce47c920, 0x2843fd2067adea10, 0x14aff010bdd87508,
+		0x0ad97808d06cb404, 0x05e23c0468365a02, 0x8c711e02341b2d01, 0x46b60f011a83988e,
+		0x90dab52a387ae76f, 0x486dd4151c3dfdb9, 0x24b86a840e90f0d2, 0x125c354207487869,
+		0x092e94218d243cba, 0x8a174a9ec8121e5d, 0x4585254f64090fa0, 0xaccc9ca9328a8950,
+		0x9d4df05d5f661451, 0xc0a878a0a1330aa6, 0x60543c50de970553, 0x302a1e286fc58ca7,
+		0x18150f14b9ec46dd, 0x0c84890ad27623e0, 0x0642ca05693b9f70, 0x0321658cba93c138,
+		0x86275df09ce8aaa8, 0x439da0784e745554, 0xafc0503c273aa42a, 0xd960281e9d1d5215,
+		0xe230140fc0802984, 0x71180a8960409a42, 0xb60c05ca30204d21, 0x5b068c651810a89e,
+		0x456c34887a3805b9, 0xac361a443d1c8cd2, 0x561b0d22900e4669, 0x2b838811480723ba,
+		0x9bcf4486248d9f5d, 0xc3e9224312c8c1a0, 0xeffa11af0964ee50, 0xf97d86d98a327728,
+		0xe4fa2054a80b329c, 0x727d102a548b194e, 0x39b008152acb8227, 0x9258048415eb419d,
+		0x492c024284fbaec0, 0xaa16012142f35760, 0x550b8e9e21f7a530, 0xa48b474f9ef5dc18,
+		0x70a6a56e2440598e, 0x3853dc371220a247, 0x1ca76e95091051ad, 0x0edd37c48a08a6d8,
+		0x07e095624504536c, 0x8d70c431ac02a736, 0xc83862965601dd1b, 0x641c314b2b8ee083
+	};
+
+	static const uint8_t T_[64]=
+	{
+		 0,  8, 16, 24, 32, 40, 48, 56, 
+		 1,  9, 17, 25, 33, 41, 49, 57,
+		 2, 10, 18, 26, 34, 42, 50, 58, 
+		 3, 11, 19, 27, 35, 43, 51, 59,
+		 4, 12, 20, 28, 36, 44, 52, 60,
+		 5, 13, 21, 29, 37, 45, 53, 61,
+		 6, 14, 22, 30, 38, 46, 54, 62,
+		 7, 15, 23, 31, 39, 47, 55, 63
+	};
+
+
+	static const uint8_t C_[12][64] = 
+	{
+		{
+			0xb1,0x08,0x5b,0xda,0x1e,0xca,0xda,0xe9,0xeb,0xcb,0x2f,0x81,0xc0,0x65,0x7c,0x1f,
+			0x2f,0x6a,0x76,0x43,0x2e,0x45,0xd0,0x16,0x71,0x4e,0xb8,0x8d,0x75,0x85,0xc4,0xfc,
+			0x4b,0x7c,0xe0,0x91,0x92,0x67,0x69,0x01,0xa2,0x42,0x2a,0x08,0xa4,0x60,0xd3,0x15,
+			0x05,0x76,0x74,0x36,0xcc,0x74,0x4d,0x23,0xdd,0x80,0x65,0x59,0xf2,0xa6,0x45,0x07
+		},
+		{
+			0x6f,0xa3,0xb5,0x8a,0xa9,0x9d,0x2f,0x1a,0x4f,0xe3,0x9d,0x46,0x0f,0x70,0xb5,0xd7,
+			0xf3,0xfe,0xea,0x72,0x0a,0x23,0x2b,0x98,0x61,0xd5,0x5e,0x0f,0x16,0xb5,0x01,0x31,
+			0x9a,0xb5,0x17,0x6b,0x12,0xd6,0x99,0x58,0x5c,0xb5,0x61,0xc2,0xdb,0x0a,0xa7,0xca,
+			0x55,0xdd,0xa2,0x1b,0xd7,0xcb,0xcd,0x56,0xe6,0x79,0x04,0x70,0x21,0xb1,0x9b,0xb7
+		},
+		{
+			0xf5,0x74,0xdc,0xac,0x2b,0xce,0x2f,0xc7,0x0a,0x39,0xfc,0x28,0x6a,0x3d,0x84,0x35,
+			0x06,0xf1,0x5e,0x5f,0x52,0x9c,0x1f,0x8b,0xf2,0xea,0x75,0x14,0xb1,0x29,0x7b,0x7b,
+			0xd3,0xe2,0x0f,0xe4,0x90,0x35,0x9e,0xb1,0xc1,0xc9,0x3a,0x37,0x60,0x62,0xdb,0x09,
+			0xc2,0xb6,0xf4,0x43,0x86,0x7a,0xdb,0x31,0x99,0x1e,0x96,0xf5,0x0a,0xba,0x0a,0xb2
+		},
+		{
+			0xef,0x1f,0xdf,0xb3,0xe8,0x15,0x66,0xd2,0xf9,0x48,0xe1,0xa0,0x5d,0x71,0xe4,0xdd,
+			0x48,0x8e,0x85,0x7e,0x33,0x5c,0x3c,0x7d,0x9d,0x72,0x1c,0xad,0x68,0x5e,0x35,0x3f,
+			0xa9,0xd7,0x2c,0x82,0xed,0x03,0xd6,0x75,0xd8,0xb7,0x13,0x33,0x93,0x52,0x03,0xbe,
+			0x34,0x53,0xea,0xa1,0x93,0xe8,0x37,0xf1,0x22,0x0c,0xbe,0xbc,0x84,0xe3,0xd1,0x2e
+		},
+		{
+			0x4b,0xea,0x6b,0xac,0xad,0x47,0x47,0x99,0x9a,0x3f,0x41,0x0c,0x6c,0xa9,0x23,0x63,
+			0x7f,0x15,0x1c,0x1f,0x16,0x86,0x10,0x4a,0x35,0x9e,0x35,0xd7,0x80,0x0f,0xff,0xbd,
+			0xbf,0xcd,0x17,0x47,0x25,0x3a,0xf5,0xa3,0xdf,0xff,0x00,0xb7,0x23,0x27,0x1a,0x16,
+			0x7a,0x56,0xa2,0x7e,0xa9,0xea,0x63,0xf5,0x60,0x17,0x58,0xfd,0x7c,0x6c,0xfe,0x57
+		},
+		{
+			0xae,0x4f,0xae,0xae,0x1d,0x3a,0xd3,0xd9,0x6f,0xa4,0xc3,0x3b,0x7a,0x30,0x39,0xc0,
+			0x2d,0x66,0xc4,0xf9,0x51,0x42,0xa4,0x6c,0x18,0x7f,0x9a,0xb4,0x9a,0xf0,0x8e,0xc6,
+			0xcf,0xfa,0xa6,0xb7,0x1c,0x9a,0xb7,0xb4,0x0a,0xf2,0x1f,0x66,0xc2,0xbe,0xc6,0xb6,
+			0xbf,0x71,0xc5,0x72,0x36,0x90,0x4f,0x35,0xfa,0x68,0x40,0x7a,0x46,0x64,0x7d,0x6e
+		},
+		{
+			0xf4,0xc7,0x0e,0x16,0xee,0xaa,0xc5,0xec,0x51,0xac,0x86,0xfe,0xbf,0x24,0x09,0x54,
+			0x39,0x9e,0xc6,0xc7,0xe6,0xbf,0x87,0xc9,0xd3,0x47,0x3e,0x33,0x19,0x7a,0x93,0xc9,
+			0x09,0x92,0xab,0xc5,0x2d,0x82,0x2c,0x37,0x06,0x47,0x69,0x83,0x28,0x4a,0x05,0x04,
+			0x35,0x17,0x45,0x4c,0xa2,0x3c,0x4a,0xf3,0x88,0x86,0x56,0x4d,0x3a,0x14,0xd4,0x93
+		},
+		{
+			0x9b,0x1f,0x5b,0x42,0x4d,0x93,0xc9,0xa7,0x03,0xe7,0xaa,0x02,0x0c,0x6e,0x41,0x41,
+			0x4e,0xb7,0xf8,0x71,0x9c,0x36,0xde,0x1e,0x89,0xb4,0x44,0x3b,0x4d,0xdb,0xc4,0x9a,
+			0xf4,0x89,0x2b,0xcb,0x92,0x9b,0x06,0x90,0x69,0xd1,0x8d,0x2b,0xd1,0xa5,0xc4,0x2f,
+			0x36,0xac,0xc2,0x35,0x59,0x51,0xa8,0xd9,0xa4,0x7f,0x0d,0xd4,0xbf,0x02,0xe7,0x1e
+		},
+		{
+			0x37,0x8f,0x5a,0x54,0x16,0x31,0x22,0x9b,0x94,0x4c,0x9a,0xd8,0xec,0x16,0x5f,0xde,
+			0x3a,0x7d,0x3a,0x1b,0x25,0x89,0x42,0x24,0x3c,0xd9,0x55,0xb7,0xe0,0x0d,0x09,0x84,
+			0x80,0x0a,0x44,0x0b,0xdb,0xb2,0xce,0xb1,0x7b,0x2b,0x8a,0x9a,0xa6,0x07,0x9c,0x54,
+			0x0e,0x38,0xdc,0x92,0xcb,0x1f,0x2a,0x60,0x72,0x61,0x44,0x51,0x83,0x23,0x5a,0xdb
+		},
+		{
+			0xab,0xbe,0xde,0xa6,0x80,0x05,0x6f,0x52,0x38,0x2a,0xe5,0x48,0xb2,0xe4,0xf3,0xf3,
+			0x89,0x41,0xe7,0x1c,0xff,0x8a,0x78,0xdb,0x1f,0xff,0xe1,0x8a,0x1b,0x33,0x61,0x03,
+			0x9f,0xe7,0x67,0x02,0xaf,0x69,0x33,0x4b,0x7a,0x1e,0x6c,0x30,0x3b,0x76,0x52,0xf4,
+			0x36,0x98,0xfa,0xd1,0x15,0x3b,0xb6,0xc3,0x74,0xb4,0xc7,0xfb,0x98,0x45,0x9c,0xed
+		},
+		{
+			0x7b,0xcd,0x9e,0xd0,0xef,0xc8,0x89,0xfb,0x30,0x02,0xc6,0xcd,0x63,0x5a,0xfe,0x94,
+			0xd8,0xfa,0x6b,0xbb,0xeb,0xab,0x07,0x61,0x20,0x01,0x80,0x21,0x14,0x84,0x66,0x79,
+			0x8a,0x1d,0x71,0xef,0xea,0x48,0xb9,0xca,0xef,0xba,0xcd,0x1d,0x7d,0x47,0x6e,0x98,
+			0xde,0xa2,0x59,0x4a,0xc0,0x6f,0xd8,0x5d,0x6b,0xca,0xa4,0xcd,0x81,0xf3,0x2d,0x1b
+		},
+		{
+			0x37,0x8e,0xe7,0x67,0xf1,0x16,0x31,0xba,0xd2,0x13,0x80,0xb0,0x04,0x49,0xb1,0x7a,
+			0xcd,0xa4,0x3c,0x32,0xbc,0xdf,0x1d,0x77,0xf8,0x20,0x12,0xd4,0x30,0x21,0x9f,0x9b,
+			0x5d,0x80,0xef,0x9d,0x18,0x91,0xcc,0x86,0xe7,0x1d,0xa4,0xaa,0x88,0xe1,0x28,0x52,
+			0xfa,0xf4,0x17,0xd5,0xd9,0xb2,0x1b,0x99,0x48,0xbc,0x92,0x4a,0xf1,0x1b,0xd7,0x20
+		}
+	};
+	
+	union GOST3411Block // 8 bytes aligned
+	{
+		uint8_t buf[64];
+		uint64_t ll[8];
+
+		GOST3411Block operator^(const GOST3411Block& other) const
+		{
+			GOST3411Block ret;
+			for (int i = 0; i < 8; i++)
+				ret.ll[i] = ll[i]^other.ll[i];
+			return ret;
+		}	
+
+		GOST3411Block operator^(const uint8_t * other) const
+		{
+			GOST3411Block ret;
+			for (int i = 0; i < 64; i++)
+				ret.buf[i] = buf[i]^other[i];
+			return ret;
+		}	
+		
+		GOST3411Block operator+(const GOST3411Block& other) const
+		{
+			GOST3411Block ret;
+			uint8_t carry = 0;
+			for (int i = 63; i >= 0; i--)
+			{
+				uint16_t sum = buf[i] + other.buf[i] + carry;
+				ret.buf[i] = sum & 0xFF;
+				carry = sum >> 8;
+			}	
+			return ret;
+		}
+
+		void Add (uint32_t c)
+		{
+			for (int i = 63; i >= 0; i--)
+			{
+				c += buf[i];
+				buf[i] = c;
+				c >>= 8;			
+			}
+		}
+
+		void S ()
+		{
+			for (int i = 0; i < 64; i++)
+				buf[i] = sbox_[buf[i]];
+		}	
+
+		void L ()
+		{
+			for (int i = 0; i < 8; i++)
+			{
+				uint64_t c = 0;
+				for (int j = 0; j < 8; j++)
+				{	
+					uint8_t bit = 0x80;
+					for (int k = 0; k < 8; k++)
+					{
+						if (buf[i*8+j] & bit) c ^= A_[j*8+k];
+						bit >>= 1;
+					}
+				}	
+				ll[i] = c;
+			}	
+		}	
+
+		void P ()
+		{
+			uint8_t t[64];
+			for (int i = 0; i < 64; i++)
+				t[i] = buf[T_[i]];
+			memcpy (buf, t, 64);			
+		}
+
+		GOST3411Block E (const GOST3411Block& m)
+		{
+			GOST3411Block k = *this;
+			GOST3411Block res = k^m;
+			for (int i = 0; i < 12; i++)
+			{
+				res.S ();
+				res.P ();
+				res.L ();
+				k = k^C_[i];
+				k.S ();
+				k.P ();
+				k.L ();
+				res = k^res;
+			}	
+			return res;
+		}	
+	};
+	
+	static GOST3411Block gN (const GOST3411Block& N, const GOST3411Block& h, const GOST3411Block& m)
+	{
+		GOST3411Block res = N ^ h;
+		res.S ();
+		res.P ();
+		res.L ();
+		res = res.E (m);
+		res = res ^ h;
+		res = res ^ m;
+		return res;	
+	}	
+
+	static void H (const uint8_t * iv, const uint8_t * buf, size_t len, uint8_t * digest)
+	{
+		// stage 1	
+		GOST3411Block h, N, s, m;
+		memcpy (h.buf, iv, 64);
+		memset (N.buf, 0, 64);
+		memset (s.buf, 0, 64);
+		size_t l = len;
+		// stage 2
+		while (l >= 64)
+		{
+			memcpy (m.buf, buf + l - 64, 64); // TODO
+			h= gN (N, h, m);
+			N.Add (512);
+			s = m + s;
+			len -= 64;
+		}
+		// stage 3
+		size_t padding = 64 - l;
+		if (padding)
+		{
+			memset (m.buf, 0, padding - 1);
+			m.buf[padding - 1] = 1;
+		}
+		memcpy (m.buf + padding, buf, l);
+
+		h = gN (N, h, m);
+		N.Add (l*8);	
+		s = m + s;
+	
+		GOST3411Block N0;
+		memset (N0.buf, 0, 64);
+		h = gN (N0, h, N);
+		h = gN (N0, h, s);
+		
+		memcpy (digest, h.buf, 64); 
+	}
+
+	void GOSTR3411_2012_256 (const uint8_t * buf, size_t len, uint8_t * digest)
+	{
+		uint8_t iv[64];
+		memset (iv, 1, 64);
+		uint8_t h[64];
+		H (iv, buf, len, h);
+		memcpy (digest, h, 32); // first half
+	}
+
+	void GOSTR3411_2012_512 (const uint8_t * buf, size_t len, uint8_t * digest)
+	{
+		uint8_t iv[64];
+		memset (iv, 0, 64);
+		H (iv, buf, len, digest);
+	}
+}
+}

Gost.h

@@ -0,0 +1,54 @@
+#ifndef GOST_H__
+#define GOST_H__
+
+#include <memory>
+#include <openssl/ec.h>
+
+namespace i2p
+{
+namespace crypto
+{
+
+	// ГОСТ Р 34.10
+	
+	enum GOSTR3410ParamSet
+	{
+		// GOST R 34.10-2001
+		eGOSTR3410CryptoProA = 0,   // 1.2.643.2.2.35.1
+		// XchA = A, XchB = C
+		//eGOSTR3410CryptoProXchA,    // 1.2.643.2.2.36.0
+		//eGOSTR3410CryptoProXchB,	// 1.2.643.2.2.36.1
+		// GOST R 34.10-2012		
+		eGOSTR3410TC26A256,		// 1.2.643.7.1.2.1.1.1 
+		eGOSTR3410TC26A512,		// 1.2.643.7.1.2.1.2.1
+		eGOSTR3410NumParamSets
+	};	
+	
+	class GOSTR3410Curve
+	{
+		public:
+
+			GOSTR3410Curve (BIGNUM * a, BIGNUM * b, BIGNUM * p, BIGNUM * q, BIGNUM * x, BIGNUM * y);
+			~GOSTR3410Curve ();			
+
+			size_t GetKeyLen () const { return m_KeyLen; }; 
+			EC_POINT * MulP (const BIGNUM * n) const;
+			bool GetXY (const EC_POINT * p, BIGNUM * x, BIGNUM * y) const;
+			EC_POINT * CreatePoint (const BIGNUM * x, const BIGNUM * y) const;
+			void Sign (const BIGNUM * priv, const BIGNUM * digest, BIGNUM * r, BIGNUM * s);
+			bool Verify (const EC_POINT * pub, const BIGNUM * digest, const BIGNUM * r, const BIGNUM * s);
+			
+		private:
+
+			EC_GROUP * m_Group;
+			size_t m_KeyLen; // in bytes
+	};
+
+	std::unique_ptr<GOSTR3410Curve>& GetGOSTR3410Curve (GOSTR3410ParamSet paramSet);
+
+	void GOSTR3411_2012_256 (const uint8_t * buf, size_t len, uint8_t * digest);
+	void GOSTR3411_2012_512 (const uint8_t * buf, size_t len, uint8_t * digest);
+}
+}
+
+#endif

I2NPProtocol.cpp

@@ -326,8 +326,9 @@ namespace i2p
 			if (!memcmp (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)i2p::context.GetRouterInfo ().GetIdentHash (), 16))
 			{	
 				LogPrint (eLogDebug, "I2NP: Build request record ", i, " is ours");
-			
+				BN_CTX * ctx = BN_CTX_new ();
-				i2p::crypto::ElGamalDecrypt (i2p::context.GetEncryptionPrivateKey (), record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET, clearText);
+				i2p::crypto::ElGamalDecrypt (i2p::context.GetEncryptionPrivateKey (), record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET, clearText, ctx);
+				BN_CTX_free (ctx);
 				// replace record to reply			
 				if (i2p::context.AcceptsTunnels () && 
 					i2p::tunnel::tunnels.GetTransitTunnels ().size () <= g_MaxNumTransitTunnels &&

Identity.cpp

@@ -97,16 +97,25 @@ namespace data
 				}	
 				case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
 				{
-					size_t padding =  128 - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; // 96 = 128 - 32
+					size_t padding = 128 - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; // 96 = 128 - 32
 					RAND_bytes (m_StandardIdentity.signingKey, padding);
 					memcpy (m_StandardIdentity.signingKey + padding, signingKey, i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH);
 					break;
 				}	
-				case SIGNING_KEY_TYPE_GOSTR3410_A_GOSTR3411:
+				case SIGNING_KEY_TYPE_GOSTR3410_2001_CRYPTO_PRO_A_GOSTR3411:
+				case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_256_GOSTR3411:
 				{	
-					size_t padding =  128 - i2p::crypto::GOSTR3410_PUBLIC_KEY_LENGTH; // 64 = 128 - 64
+					// 256
+					size_t padding = 128 - i2p::crypto::GOSTR3410_256_PUBLIC_KEY_LENGTH; // 64 = 128 - 64
 					RAND_bytes (m_StandardIdentity.signingKey, padding);
-					memcpy (m_StandardIdentity.signingKey + padding, signingKey, i2p::crypto::GOSTR3410_PUBLIC_KEY_LENGTH);
+					memcpy (m_StandardIdentity.signingKey + padding, signingKey, i2p::crypto::GOSTR3410_256_PUBLIC_KEY_LENGTH);
+					break;
+				}
+				case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_512_GOSTR3411:	
+				{	
+					// 512
+					// no padding, key length is 128
+					memcpy (m_StandardIdentity.signingKey, signingKey, i2p::crypto::GOSTR3410_512_PUBLIC_KEY_LENGTH);
 					break;
 				}	
 				default:
@@ -377,12 +386,24 @@ namespace data
 				UpdateVerifier (new i2p::crypto::EDDSA25519Verifier (m_StandardIdentity.signingKey + padding));
 				break;
 			}	
-			case SIGNING_KEY_TYPE_GOSTR3410_A_GOSTR3411:
+			case SIGNING_KEY_TYPE_GOSTR3410_2001_CRYPTO_PRO_A_GOSTR3411:
 			{	
-				size_t padding =  128 - i2p::crypto::GOSTR3410_PUBLIC_KEY_LENGTH; // 64 = 128 - 64
+				size_t padding =  128 - i2p::crypto::GOSTR3410_256_PUBLIC_KEY_LENGTH; // 64 = 128 - 64
-				UpdateVerifier (new i2p::crypto::GOSTR3410Verifier (m_StandardIdentity.signingKey + padding));
+				UpdateVerifier (new i2p::crypto::GOSTR3410_2001_Verifier (i2p::crypto::eGOSTR3410CryptoProA, m_StandardIdentity.signingKey + padding));
 				break;
-			}		
+			}
+			case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_256_GOSTR3411:
+			{	
+				size_t padding =  128 - i2p::crypto::GOSTR3410_256_PUBLIC_KEY_LENGTH; // 64 = 128 - 64
+				UpdateVerifier (new i2p::crypto::GOSTR3410_2012_256_Verifier (i2p::crypto::eGOSTR3410TC26A256, m_StandardIdentity.signingKey + padding));
+				break;
+			}	
+			case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_512_GOSTR3411:
+			{	
+				// zero padding
+				UpdateVerifier (new i2p::crypto::GOSTR3410_2012_512_Verifier (i2p::crypto::eGOSTR3410TC26A512, m_StandardIdentity.signingKey));
+				break;
+			}	
 			default:
 				LogPrint (eLogError, "Identity: Signing key type ", (int)keyType, " is not supported");
 		}			
@@ -524,9 +545,15 @@ namespace data
 			case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
 				m_Signer.reset (new i2p::crypto::EDDSA25519Signer (m_SigningPrivateKey, m_Public->GetStandardIdentity ().certificate - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH));
 			break;
-			case SIGNING_KEY_TYPE_GOSTR3410_A_GOSTR3411:
+			case SIGNING_KEY_TYPE_GOSTR3410_2001_CRYPTO_PRO_A_GOSTR3411:
-				m_Signer.reset (new i2p::crypto::GOSTR3410Signer (m_SigningPrivateKey));
+				m_Signer.reset (new i2p::crypto::GOSTR3410_2001_Signer (i2p::crypto::eGOSTR3410CryptoProA, m_SigningPrivateKey));
 			break;	
+			case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_256_GOSTR3411:
+				m_Signer.reset (new i2p::crypto::GOSTR3410_2012_256_Signer (i2p::crypto::eGOSTR3410TC26A256, m_SigningPrivateKey));
+			break;		
+			case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_512_GOSTR3411:
+				m_Signer.reset (new i2p::crypto::GOSTR3410_2012_512_Signer (i2p::crypto::eGOSTR3410TC26A512, m_SigningPrivateKey));
+			break;		
 			default:
 				LogPrint (eLogError, "Identity: Signing key type ", (int)m_Public->GetSigningKeyType (), " is not supported");
 		}
@@ -562,9 +589,15 @@ namespace data
 				case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
 					i2p::crypto::CreateEDDSA25519RandomKeys (keys.m_SigningPrivateKey, signingPublicKey);
 				break;
-				case SIGNING_KEY_TYPE_GOSTR3410_A_GOSTR3411:
+				case SIGNING_KEY_TYPE_GOSTR3410_2001_CRYPTO_PRO_A_GOSTR3411:
-					i2p::crypto::CreateGOSTR3410RandomKeys (keys.m_SigningPrivateKey, signingPublicKey);
+					i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410CryptoProA, keys.m_SigningPrivateKey, signingPublicKey);
+				break;	
+				case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_256_GOSTR3411:
+					i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410TC26A256, keys.m_SigningPrivateKey, signingPublicKey);
 				break;	
+				case SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_512_GOSTR3411:
+					i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410TC26A512, keys.m_SigningPrivateKey, signingPublicKey);
+				break;		
 				default:
 					LogPrint (eLogError, "Identity: Signing key type ", (int)type, " is not supported. Create DSA-SHA1");
 					return PrivateKeys (i2p::data::CreateRandomKeys ()); // DSA-SHA1

Identity.h

@@ -61,7 +61,9 @@ namespace data
 	const uint16_t SIGNING_KEY_TYPE_RSA_SHA512_4096 = 6;
 	const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519 = 7;
 	// following signature type should never appear in netid=2
-	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_A_GOSTR3411 = 65280; // approved by FSB
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_2001_CRYPTO_PRO_A_GOSTR3411 = 65280; // approved by FSB
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_256_GOSTR3411 = 65281;
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_2012_TC26_A_512_GOSTR3411 = 65282;
 	
 	typedef uint16_t SigningKeyType;
 	typedef uint16_t CryptoKeyType;	

NTCPSession.cpp

@@ -23,7 +23,7 @@ namespace i2p
 namespace transport
 {
 	NTCPSession::NTCPSession (NTCPServer& server, std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter): 
-		TransportSession (in_RemoteRouter, NTCP_TERMINATION_TIMEOUT),	
+		TransportSession (in_RemoteRouter, NTCP_ESTABLISH_TIMEOUT),	
 		m_Server (server), m_Socket (m_Server.GetService ()), 
 		m_IsEstablished (false), m_IsTerminated (false),
 		m_ReceiveBufferOffset (0), m_NextMessage (nullptr), m_IsSending (false)
@@ -98,6 +98,7 @@ namespace transport
 		
 		m_DHKeysPair = nullptr;	
 
+		SetTerminationTimeout (NTCP_TERMINATION_TIMEOUT);
 		SendTimeSyncMessage ();		
 		transports.PeerConnected (shared_from_this ());
 	}	
@@ -120,6 +121,7 @@ namespace transport
 
 	void NTCPSession::ServerLogin ()
 	{
+		m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch ();
 		// receive Phase1
 		boost::asio::async_read (m_Socket, boost::asio::buffer(&m_Establisher->phase1, sizeof (NTCPPhase1)), boost::asio::transfer_all (),                    
 			std::bind(&NTCPSession::HandlePhase1Received, shared_from_this (), 
@@ -858,6 +860,8 @@ namespace transport
 			auto ntcpSessions = m_NTCPSessions; 
 			for (auto& it: ntcpSessions)
 				it.second->Terminate ();
+			for (auto& it: m_PendingIncomingSessions)
+				it->Terminate ();
 		}	 
 		m_NTCPSessions.clear ();
 
@@ -940,7 +944,10 @@ namespace transport
 			{
 				LogPrint (eLogDebug, "NTCP: Connected from ", ep);
 				if (conn)
+				{
 					conn->ServerLogin ();
+					m_PendingIncomingSessions.push_back (conn);
+				}	
 			}
 			else
 				LogPrint (eLogError, "NTCP: Connected from error ", ec.message ());
@@ -965,7 +972,10 @@ namespace transport
 			{
 				LogPrint (eLogDebug, "NTCP: Connected from ", ep);
 				if (conn)
+				{	
 					conn->ServerLogin ();
+					m_PendingIncomingSessions.push_back (conn);
+				}	
 			}
 			else
 				LogPrint (eLogError, "NTCP: Connected from error ", ec.message ());
@@ -1033,16 +1043,32 @@ namespace transport
 		if (ecode != boost::asio::error::operation_aborted)
 		{	
 			auto ts = i2p::util::GetSecondsSinceEpoch ();
+			// established
 			for (auto& it: m_NTCPSessions)
  				if (it.second->IsTerminationTimeoutExpired (ts))
 				{
 					auto session = it.second;
+					// Termniate modifies m_NTCPSession, so we postpone it
 					m_Service.post ([session] 
 						{ 
 							LogPrint (eLogDebug, "NTCP: No activity for ", session->GetTerminationTimeout (), " seconds");
 							session->Terminate ();
 						});	
 				}
+			// pending
+			for (auto it = m_PendingIncomingSessions.begin (); it != m_PendingIncomingSessions.end ();)
+			{
+				if ((*it)->IsEstablished () || (*it)->IsTerminated ())
+					it = m_PendingIncomingSessions.erase (it); // established or terminated
+				else if ((*it)->IsTerminationTimeoutExpired (ts))
+				{
+					(*it)->Terminate (); 
+					it = m_PendingIncomingSessions.erase (it); // expired
+				}	
+				else
+					it++;
+			}
+			
 			ScheduleTermination ();	
 		}	
 	}	

NTCPSession.h

@@ -37,6 +37,7 @@ namespace transport
 	const size_t NTCP_MAX_MESSAGE_SIZE = 16384; 
 	const size_t NTCP_BUFFER_SIZE = 1028; // fits 1 tunnel data message
 	const int NTCP_CONNECT_TIMEOUT = 5; // 5 seconds
+	const int NTCP_ESTABLISH_TIMEOUT = 10; // 10 seconds
 	const int NTCP_TERMINATION_TIMEOUT = 120; // 2 minutes
 	const int NTCP_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds	
 	const size_t NTCP_DEFAULT_PHASE3_SIZE = 2/*size*/ + i2p::data::DEFAULT_IDENTITY_SIZE/*387*/ + 4/*ts*/ + 15/*padding*/ + 40/*signature*/; // 448 	
@@ -55,7 +56,8 @@ namespace transport
 
 			boost::asio::ip::tcp::socket& GetSocket () { return m_Socket; };
 			bool IsEstablished () const { return m_IsEstablished; };	
-
+			bool IsTerminated () const { return m_IsTerminated; };
+			
 			void ClientLogin ();
 			void ServerLogin ();
 			void SendI2NPMessages (const std::vector<std::shared_ptr<I2NPMessage> >& msgs);
@@ -166,6 +168,7 @@ namespace transport
 			boost::asio::deadline_timer m_TerminationTimer;
 			boost::asio::ip::tcp::acceptor * m_NTCPAcceptor, * m_NTCPV6Acceptor;
 			std::map<i2p::data::IdentHash, std::shared_ptr<NTCPSession> > m_NTCPSessions; // access from m_Thread only
+			std::list<std::shared_ptr<NTCPSession> > m_PendingIncomingSessions;
 
 		public:
 

README.md

@@ -61,11 +61,12 @@ See [documentation](https://i2pd.readthedocs.io/en/latest/user-guide/run/) and
 Donations
 ---------
 
-BTC: 1K7Ds6KUeR8ya287UC4rYTjvC96vXyZbDY  
+BTC: 1K7Ds6KUeR8ya287UC4rYTjvC96vXyZbDY   
-DASH: Xw8YUrQpYzP9tZBmbjqxS3M97Q7v3vJKUF  
+ZEC: t1cTckLuXsr1dwVrK4NDzfhehss4NvMadAJ  
+DASH: Xw8YUrQpYzP9tZBmbjqxS3M97Q7v3vJKUF   
 LTC: LKQirrYrDeTuAPnpYq5y7LVKtywfkkHi59  
 ANC: AQJYweYYUqM1nVfLqfoSMpUMfzxvS4Xd7z  
-DOGE: DNXLQKziRPAsD9H3DFNjk4fLQrdaSX893Y 
+DOGE: DNXLQKziRPAsD9H3DFNjk4fLQrdaSX893Y  
 
 License
 -------

SSUData.cpp

@@ -48,6 +48,9 @@ namespace transport
 	{
 		m_ResendTimer.cancel ();
 		m_IncompleteMessagesCleanupTimer.cancel ();
+		m_IncompleteMessages.clear ();
+		m_SentMessages.clear ();
+		m_ReceivedMessages.clear ();
 	}	
 		
 	void SSUData::AdjustPacketSize (std::shared_ptr<const i2p::data::RouterInfo> remoteRouter)

SSUSession.cpp

@@ -104,6 +104,7 @@ namespace transport
 				DecryptSessionKey (buf, len);	
 			else 
 			{
+				if (m_State == eSessionStateEstablished) Reset (); // new session key required 
 				// try intro key depending on side
 				if (Validate (buf, len, m_IntroKey))
 					Decrypt (buf, len, m_IntroKey);
@@ -869,14 +870,26 @@ namespace transport
 
 	void SSUSession::Close ()
 	{
+		SendSessionDestroyed ();
+		Reset ();
 		m_State = eSessionStateClosed;
-		SendSesionDestroyed ();
+	}	
+
+	void SSUSession::Reset ()
+	{
+		m_State = eSessionStateUnknown;
 		transports.PeerDisconnected (shared_from_this ());
 		m_Data.Stop ();
 		m_ConnectTimer.cancel ();
 		if (m_SentRelayTag)
+		{	
 			m_Server.RemoveRelay (m_SentRelayTag); // relay tag is not valid anymore
-	}	
+			m_SentRelayTag = 0;
+		}	
+		m_DHKeysPair = nullptr;
+		m_SignedData = nullptr;
+		m_IsSessionKey = false;
+	}
 
 	void SSUSession::Done ()
 	{
@@ -1140,7 +1153,7 @@ namespace transport
 		}	
 	}
 
-	void SSUSession::SendSesionDestroyed ()
+	void SSUSession::SendSessionDestroyed ()
 	{
 		if (m_IsSessionKey)
 		{

SSUSession.h

@@ -121,7 +121,7 @@ namespace transport
 			void ProcessPeerTest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint);
 			void SendPeerTest (uint32_t nonce, const boost::asio::ip::address& address, uint16_t port, const uint8_t * introKey, bool toAddress = true, bool sendAddress = true); 
 			void ProcessData (uint8_t * buf, size_t len);		
-			void SendSesionDestroyed ();
+			void SendSessionDestroyed ();
 			void Send (uint8_t type, const uint8_t * payload, size_t len); // with session key
 			void Send (const uint8_t * buf, size_t size); 
 			
@@ -132,6 +132,8 @@ namespace transport
 			void DecryptSessionKey (uint8_t * buf, size_t len);
 			bool Validate (uint8_t * buf, size_t len, const i2p::crypto::MACKey& macKey);			
 
+			void Reset ();
+			
 		private:
 	
 			friend class SSUData; // TODO: change in later

Signature.cpp

@@ -192,7 +192,8 @@ namespace crypto
 						BN_one (z3); // D = 1
 				}	
 
-				BIGNUM * E = BN_new (), * F = BN_new (), * G = BN_new (), * H = BN_new ();
+				BN_CTX_start (ctx);
+				BIGNUM * E = BN_CTX_get (ctx), * F = BN_CTX_get (ctx), * G = BN_CTX_get (ctx), * H = BN_CTX_get (ctx);
 				BN_add (E, p1.x, p1.y);				
 				BN_add (F, p2.x, p2.y);
 				BN_mul (E, E, F, ctx); // (x1 + y1)*(x2 + y2)
@@ -207,7 +208,7 @@ namespace crypto
 				BN_mod_mul (z3, F, G, q, ctx); // z3 = F*G	
 				BN_mod_mul (t3, E, H, q, ctx); // t3 = E*H	
 
-				BN_free (E); BN_free (F); BN_free (G); BN_free (H);
+				BN_CTX_end (ctx);
 
 				return EDDSAPoint {x3, y3, z3, t3};
 			}
@@ -231,7 +232,8 @@ namespace crypto
 				else
 					BN_one (z2); // z2 = 1
 
-				BIGNUM * E = BN_new (), * F = BN_new (), * G = BN_new (), * H = BN_new ();
+				BN_CTX_start (ctx);
+				BIGNUM * E = BN_CTX_get (ctx), * F = BN_CTX_get (ctx), * G = BN_CTX_get (ctx), * H = BN_CTX_get (ctx);
 				// E = (x+y)*(x+y)-A-B = x^2+y^2+2xy-A-B = 2xy
 				BN_mul (E, p.x, p.y, ctx);
 				BN_lshift1 (E, E);	// E =2*x*y							
@@ -244,7 +246,7 @@ namespace crypto
 				BN_mod_mul (z2, F, G, q, ctx); // z2 = F*G	
 				BN_mod_mul (t2, E, H, q, ctx); // t2 = E*H	
 
-				BN_free (E); BN_free (F); BN_free (G); BN_free (H);
+				BN_CTX_end (ctx);
 
 				return EDDSAPoint {x2, y2, z2, t2};
 			}
@@ -316,12 +318,11 @@ namespace crypto
 
 			bool IsOnCurve (const EDDSAPoint& p, BN_CTX * ctx) const
 			{
-				BIGNUM * x2 = BN_new ();
+				BN_CTX_start (ctx);
+				BIGNUM * x2 = BN_CTX_get (ctx), * y2 = BN_CTX_get (ctx), * tmp = BN_CTX_get (ctx);
 				BN_sqr (x2, p.x, ctx); // x^2
-				BIGNUM * y2 = BN_new ();
 				BN_sqr (y2, p.y, ctx); // y^2
-				// y^2 - x^2 - 1 - d*x^2*y^2 
+				// y^2 - x^2 - 1 - d*x^2*y^2 			
-				BIGNUM * tmp = BN_new ();				
 				BN_mul (tmp, d, x2, ctx);
 				BN_mul (tmp, tmp, y2, ctx);	
 				BN_sub (tmp, y2, tmp);
@@ -329,18 +330,16 @@ namespace crypto
 				BN_sub_word (tmp, 1);
 				BN_mod (tmp, tmp, q, ctx); // % q
 				bool ret = BN_is_zero (tmp);
-				BN_free (x2);
+				BN_CTX_end (ctx);
-				BN_free (y2);
-				BN_free (tmp);
 				return ret;
 			}	
 
 			BIGNUM * RecoverX (const BIGNUM * y, BN_CTX * ctx) const
 			{
-				BIGNUM * y2 = BN_new ();
+				BN_CTX_start (ctx);
+				BIGNUM * y2 = BN_CTX_get (ctx), * xx = BN_CTX_get (ctx);
 				BN_sqr (y2, y, ctx); // y^2
 				// xx = (y^2 -1)*inv(d*y^2 +1) 
-				BIGNUM * xx = BN_new ();
 				BN_mul (xx, d, y2, ctx);
 				BN_add_word (xx, 1);
 				BN_mod_inverse (xx, xx, q, ctx);
@@ -356,8 +355,6 @@ namespace crypto
 					BN_mod_mul (x, x, I, q, ctx);
 				if (BN_is_odd (x))
 					BN_sub (x, q, x);
-				BN_free (y2);
-				BN_free (xx);
 				return x;
 			}
 

Signature.h

@@ -9,6 +9,7 @@
 #include <openssl/rsa.h>
 #include <openssl/evp.h>
 #include "Crypto.h"
+#include "Gost.h"
 
 namespace i2p
 {
@@ -442,93 +443,135 @@ namespace crypto
 		memcpy (signingPublicKey, signer.GetPublicKey (), EDDSA25519_PUBLIC_KEY_LENGTH);
 	}
 
-	// ГОСТ Р 34.10-2001
-	const size_t GOSTR3410_PUBLIC_KEY_LENGTH = 64;
-	const size_t GOSTR3410_SIGNATURE_LENGTH = 64;
 
+	// ГОСТ Р 34.11
+	struct GOSTR3411_2001_Hash
+	{	
+		static void CalculateHash (const uint8_t * buf, size_t len, uint8_t * digest)
+		{
+			SHA256 (buf, len, digest); // TODO: implement GOST R 34.11 - 2001
+		}
+
+		enum { hashLen = 32 };
+	};
+		
+	struct GOSTR3411_2012_256_Hash
+	{	
+		static void CalculateHash (const uint8_t * buf, size_t len, uint8_t * digest)
+		{
+			SHA256 (buf, len, digest); // TODO: implement GOST R 34.11 - 2012
+		}
+
+		enum { hashLen = 32 };
+	};
+
+	struct GOSTR3411_2012_512_Hash
+	{	
+		static void CalculateHash (const uint8_t * buf, size_t len, uint8_t * digest)
+		{
+			SHA512 (buf, len, digest); // TODO: implement GOST R 34.11 - 2012
+		}
+
+		enum { hashLen = 64 };
+	};
+
+	// ГОСТ Р 34.10
+	const size_t GOSTR3410_256_PUBLIC_KEY_LENGTH = 64;
+	const size_t GOSTR3410_512_PUBLIC_KEY_LENGTH = 128;
+
+	template<typename Hash>
 	class GOSTR3410Verifier: public Verifier
 	{
 		public:
 
-			GOSTR3410Verifier (const uint8_t * signingKey) 
+			enum { keyLen = Hash::hashLen };
-			{ 
+			
-				m_PublicKey = EVP_PKEY_new (); 
+			GOSTR3410Verifier (GOSTR3410ParamSet paramSet, const uint8_t * signingKey):
-				EC_KEY * ecKey = EC_KEY_new ();
+				m_ParamSet (paramSet)
-				EVP_PKEY_assign (m_PublicKey, NID_id_GostR3410_2001, ecKey);
+			{
-				EVP_PKEY_copy_parameters (m_PublicKey, GetGostPKEY ());		
+				BIGNUM * x = BN_bin2bn (signingKey, GetPublicKeyLen ()/2, NULL);
-				BIGNUM * x = BN_bin2bn (signingKey, GOSTR3410_PUBLIC_KEY_LENGTH/2, NULL);
+				BIGNUM * y = BN_bin2bn (signingKey + GetPublicKeyLen ()/2, GetPublicKeyLen ()/2, NULL);
-				BIGNUM * y = BN_bin2bn (signingKey + GOSTR3410_PUBLIC_KEY_LENGTH/2, GOSTR3410_PUBLIC_KEY_LENGTH/2, NULL);
+				m_PublicKey = GetGOSTR3410Curve (m_ParamSet)->CreatePoint (x, y);
-				EC_KEY_set_public_key_affine_coordinates (ecKey, x, y);
 				BN_free (x); BN_free (y);
-			} 
+			}
-			~GOSTR3410Verifier () { EVP_PKEY_free (m_PublicKey); }
+			~GOSTR3410Verifier () { EC_POINT_free (m_PublicKey); }
 			
 			bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const
 			{
-				uint8_t digest[32];
+				uint8_t digest[Hash::hashLen];
-				GOSTR3411 (buf, len, digest);
+				Hash::CalculateHash (buf, len, digest);
-				EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new (m_PublicKey, nullptr);
+				BIGNUM * d = BN_bin2bn (digest, Hash::hashLen, nullptr);
-				EVP_PKEY_verify_init (ctx);
+				BIGNUM * r = BN_bin2bn (signature, GetSignatureLen ()/2, NULL);
-				int ret = EVP_PKEY_verify (ctx, signature, GOSTR3410_SIGNATURE_LENGTH, digest, 32);
+				BIGNUM * s = BN_bin2bn (signature + GetSignatureLen ()/2, GetSignatureLen ()/2, NULL);
-				EVP_PKEY_CTX_free (ctx);
+				bool ret = GetGOSTR3410Curve (m_ParamSet)->Verify (m_PublicKey, d, r, s);
-				return ret == 1;
+				BN_free (d); BN_free (r); BN_free (s);	
+				return ret;
 			}
-			
+
-			size_t GetPublicKeyLen () const { return GOSTR3410_PUBLIC_KEY_LENGTH; }
+			size_t GetPublicKeyLen () const { return keyLen*2; }
-			size_t GetSignatureLen () const { return GOSTR3410_SIGNATURE_LENGTH; }
+			size_t GetSignatureLen () const { return keyLen*2; }
 
 		private:
 
-			EVP_PKEY * m_PublicKey;
+			GOSTR3410ParamSet m_ParamSet;
+			EC_POINT * m_PublicKey;
 	};	
 
+	template<typename Hash>
 	class GOSTR3410Signer: public Signer
 	{
 		public:
 
-			GOSTR3410Signer (const uint8_t * signingPrivateKey) 
+			enum { keyLen = Hash::hashLen };
+			
+			GOSTR3410Signer (GOSTR3410ParamSet paramSet, const uint8_t * signingPrivateKey):
+				m_ParamSet (paramSet)
 			{ 
-				m_PrivateKey = EVP_PKEY_new (); 
+				m_PrivateKey = BN_bin2bn (signingPrivateKey, keyLen, nullptr); 
-				EC_KEY * ecKey = EC_KEY_new ();
-				EVP_PKEY_assign (m_PrivateKey, NID_id_GostR3410_2001, ecKey);
-				EVP_PKEY_copy_parameters (m_PrivateKey, GetGostPKEY ());	
-				EC_KEY_set_private_key (ecKey, BN_bin2bn (signingPrivateKey, GOSTR3410_PUBLIC_KEY_LENGTH/2, NULL));
 			}
-			~GOSTR3410Signer () { EVP_PKEY_free (m_PrivateKey); }
+			~GOSTR3410Signer () { BN_free (m_PrivateKey); }
 
 			void Sign (const uint8_t * buf, int len, uint8_t * signature) const
 			{
-				uint8_t digest[32];
+				uint8_t digest[Hash::hashLen];
-				GOSTR3411 (buf, len, digest);
+				Hash::CalculateHash (buf, len, digest);
-				EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new (m_PrivateKey, nullptr);
+				BIGNUM * d = BN_bin2bn (digest, Hash::hashLen, nullptr); 
-				EVP_PKEY_sign_init (ctx);
+				BIGNUM * r = BN_new (), * s = BN_new ();
-				size_t l = GOSTR3410_SIGNATURE_LENGTH;
+				GetGOSTR3410Curve (m_ParamSet)->Sign (m_PrivateKey, d, r, s);
-				EVP_PKEY_sign (ctx, signature, &l, digest, 32);
+				bn2buf (r, signature, keyLen);
-				EVP_PKEY_CTX_free (ctx);
+				bn2buf (s, signature + keyLen, keyLen);
-			}	
+				BN_free (d); BN_free (r); BN_free (s);
+			}
 			
 		private:
 
-			EVP_PKEY * m_PrivateKey;
+			GOSTR3410ParamSet m_ParamSet;
+			BIGNUM * m_PrivateKey;
 	};	
 
-	inline void CreateGOSTR3410RandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey)
+	inline void CreateGOSTR3410RandomKeys (GOSTR3410ParamSet paramSet, uint8_t * signingPrivateKey, uint8_t * signingPublicKey)
 	{
-		auto ctx = EVP_PKEY_CTX_new_id(NID_id_GostR3410_2001, nullptr);
+		const auto& curve = GetGOSTR3410Curve (paramSet);
-		EVP_PKEY_keygen_init (ctx);
+		auto keyLen = curve->GetKeyLen ();
-		EVP_PKEY_CTX_ctrl_str (ctx, "paramset", "A"); // TODO should be in one place
+		RAND_bytes (signingPrivateKey, keyLen);
-		EVP_PKEY* pkey = nullptr;
+		BIGNUM * priv = BN_bin2bn (signingPrivateKey, keyLen, nullptr);
-		EVP_PKEY_keygen (ctx, &pkey);
+		
-		const EC_KEY* ecKey = (const EC_KEY*) EVP_PKEY_get0(pkey);
+		auto pub = curve->MulP (priv);
-		bn2buf (EC_KEY_get0_private_key (ecKey), signingPrivateKey, GOSTR3410_PUBLIC_KEY_LENGTH/2);
+		BN_free (priv);
-		BIGNUM * x = BN_new(), * y = BN_new();
+		BIGNUM * x = BN_new (), * y = BN_new ();
-		EC_POINT_get_affine_coordinates_GFp (EC_KEY_get0_group(ecKey), EC_KEY_get0_public_key (ecKey), x, y, NULL);
+		curve->GetXY (pub, x, y);
-		bn2buf (x, signingPublicKey, GOSTR3410_PUBLIC_KEY_LENGTH/2);
+		EC_POINT_free (pub);
-		bn2buf (y, signingPublicKey + GOSTR3410_PUBLIC_KEY_LENGTH/2, GOSTR3410_PUBLIC_KEY_LENGTH/2);
+		bn2buf (x, signingPublicKey, keyLen);
-		BN_free (x); BN_free (y);
+		bn2buf (y, signingPublicKey + keyLen, keyLen);
-		EVP_PKEY_CTX_free (ctx);
+		BN_free (x); BN_free (y); 
-		EVP_PKEY_free (pkey);	
 	}
+
+	typedef GOSTR3410Verifier<GOSTR3411_2001_Hash> GOSTR3410_2001_Verifier;
+	typedef GOSTR3410Signer<GOSTR3411_2001_Hash> GOSTR3410_2001_Signer;
+	typedef GOSTR3410Verifier<GOSTR3411_2012_256_Hash> GOSTR3410_2012_256_Verifier;
+	typedef GOSTR3410Signer<GOSTR3411_2012_256_Hash> GOSTR3410_2012_256_Signer;
+	typedef GOSTR3410Verifier<GOSTR3411_2012_512_Hash> GOSTR3410_2012_512_Verifier;
+	typedef GOSTR3410Signer<GOSTR3411_2012_512_Hash> GOSTR3410_2012_512_Signer;
 }
 }
 

Streaming.cpp

@@ -11,6 +11,50 @@ namespace i2p
 {
 namespace stream
 {
+	void SendBufferQueue::Add (const uint8_t * buf, size_t len, SendHandler handler)
+	{	
+		m_Buffers.push_back (std::make_shared<SendBuffer>(buf, len, handler));
+		m_Size += len;
+	}
+	
+	size_t SendBufferQueue::Get (uint8_t * buf, size_t len)
+	{
+		size_t offset = 0;
+		while (!m_Buffers.empty () && offset < len)
+		{
+			auto nextBuffer = m_Buffers.front ();
+			auto rem = nextBuffer->GetRemainingSize ();
+			if (offset + rem <= len)
+			{
+				// whole buffer
+				memcpy (buf + offset, nextBuffer->GetRemaningBuffer (), rem);
+				offset += rem;
+				m_Buffers.pop_front (); // delete it
+			}	
+			else
+			{
+				// partially
+				rem =  len - offset;
+				memcpy (buf + offset, nextBuffer->GetRemaningBuffer (), len - offset);
+				nextBuffer->offset += (len - offset);
+				offset = len; // break
+			}	
+		}	
+		m_Size -= offset;
+		return offset;
+	}	
+
+	void SendBufferQueue::CleanUp () 
+	{ 
+		if (!m_Buffers.empty ())
+		{	
+			for (auto it: m_Buffers)
+				it->Cancel ();
+			m_Buffers.clear (); 
+			m_Size = 0;
+		}	
+	}
+	
 	Stream::Stream (boost::asio::io_service& service, StreamingDestination& local,
 		std::shared_ptr<const i2p::data::LeaseSet> remote, int port): m_Service (service),
 		m_SendStreamID (0), m_SequenceNumber (0), m_LastReceivedSequenceNumber (-1),
@@ -45,19 +89,16 @@ namespace stream
 		m_AckSendTimer.cancel ();
 		m_ReceiveTimer.cancel ();
 		m_ResendTimer.cancel ();
-		if (m_SendHandler)
-		{
-			auto handler = m_SendHandler;
-			m_SendHandler = nullptr;
-			handler (boost::asio::error::make_error_code (boost::asio::error::operation_aborted));
-		}
 		//CleanUp (); /* Need to recheck - broke working on windows */
 		m_LocalDestination.DeleteStream (shared_from_this ());
 	}
 
 	void Stream::CleanUp ()
 	{
-		m_SendBuffer.str ("");
+		{
+			std::unique_lock<std::mutex> l(m_SendBufferMutex);
+			m_SendBuffer.CleanUp ();
+		}	
 		while (!m_ReceiveQueue.empty ())
 		{
 			auto packet = m_ReceiveQueue.front ();
@@ -321,23 +362,21 @@ namespace stream
 
 	size_t Stream::Send (const uint8_t * buf, size_t len)
 	{
-		if (len > 0 && buf)
+		// TODO: check max buffer size
-		{
+		AsyncSend (buf, len, nullptr);
-			std::unique_lock<std::mutex> l(m_SendBufferMutex);
-			m_SendBuffer.clear ();
-			m_SendBuffer.write ((const char *)buf, len);
-		}
-		m_Service.post (std::bind (&Stream::SendBuffer, shared_from_this ()));
 		return len;
 	}
 
 	void Stream::AsyncSend (const uint8_t * buf, size_t len, SendHandler handler)
 	{
-		if (m_SendHandler)
+		if (len > 0 && buf)
-			handler (boost::asio::error::make_error_code (boost::asio::error::in_progress));
+		{
-		else
+			std::unique_lock<std::mutex> l(m_SendBufferMutex);
-			m_SendHandler = handler;
+			m_SendBuffer.Add (buf, len, handler);
-		Send (buf, len);
+		}
+		else if (handler)
+			 handler(boost::system::error_code ());
+		m_Service.post (std::bind (&Stream::SendBuffer, shared_from_this ()));
 	}
 
 	void Stream::SendBuffer ()
@@ -349,7 +388,7 @@ namespace stream
 		std::vector<Packet *> packets;
 		{
 			std::unique_lock<std::mutex> l(m_SendBufferMutex);
-			while ((m_Status == eStreamStatusNew) || (IsEstablished () && !m_SendBuffer.eof () && numMsgs > 0))
+			while ((m_Status == eStreamStatusNew) || (IsEstablished () && !m_SendBuffer.IsEmpty () && numMsgs > 0))
 			{
 				Packet * p = m_LocalDestination.NewPacket ();
 				uint8_t * packet = p->GetBuffer ();
@@ -390,8 +429,7 @@ namespace stream
 					uint8_t * signature = packet + size; // set it later
 					memset (signature, 0, signatureLen); // zeroes for now
 					size += signatureLen; // signature
-					m_SendBuffer.read ((char *)(packet + size), STREAMING_MTU - size);
+					size += m_SendBuffer.Get (packet + size, STREAMING_MTU - size); // payload
-					size += m_SendBuffer.gcount (); // payload
 					m_LocalDestination.GetOwner ()->Sign (packet, size, signature);
 				}
 				else
@@ -401,22 +439,12 @@ namespace stream
 					size += 2; // flags
 					htobuf16 (packet + size, 0); // no options
 					size += 2; // options size
-					m_SendBuffer.read((char *)(packet + size), STREAMING_MTU - size);
+					size += m_SendBuffer.Get(packet + size, STREAMING_MTU - size); // payload
-					size += m_SendBuffer.gcount (); // payload
 				}
 				p->len = size;
 				packets.push_back (p);
 				numMsgs--;
 			}
-			if (m_SendBuffer.eof ())
-			{
-				m_SendBuffer.str(""); // clean up buffer
-				if (m_SendHandler)
-				{
-					m_SendHandler (boost::system::error_code ());
-					m_SendHandler = nullptr;
-				}
-			}
 		}
 		if (packets.size () > 0)
 		{
@@ -433,7 +461,7 @@ namespace stream
 				m_SentPackets.insert (it);
 			}
 			SendPackets (packets);
-			if (m_Status == eStreamStatusClosing && m_SendBuffer.eof ())
+			if (m_Status == eStreamStatusClosing && m_SendBuffer.IsEmpty ())
 				SendClose ();
 			if (isEmpty)
 				ScheduleResend ();
@@ -525,7 +553,7 @@ namespace stream
 				Terminate ();
 			break;
 			case eStreamStatusClosing:
-				if (m_SentPackets.empty () && m_SendBuffer.eof ()) // nothing to send
+				if (m_SentPackets.empty () && m_SendBuffer.IsEmpty ()) // nothing to send
 				{
 					m_Status = eStreamStatusClosed;
 					SendClose ();

Streaming.h

@@ -3,7 +3,6 @@
 
 #include <inttypes.h>
 #include <string>
-#include <sstream>
 #include <map>
 #include <set>
 #include <queue>
@@ -104,6 +103,48 @@ namespace stream
 		};
 	};	
 
+	typedef std::function<void (const boost::system::error_code& ecode)> SendHandler;
+	struct SendBuffer
+	{
+		uint8_t * buf;
+		size_t len, offset;
+		SendHandler handler;
+
+		SendBuffer (const uint8_t * b, size_t l, SendHandler h):
+			len(l), offset (0), handler(h)
+		{
+			buf = new uint8_t[len];
+			memcpy (buf, b, len);
+		}	
+		~SendBuffer ()
+		{
+			delete[] buf;
+			if (handler) handler(boost::system::error_code ());
+		}	
+		size_t GetRemainingSize () const { return len - offset; };
+		const uint8_t * GetRemaningBuffer () const { return buf + offset; };	
+		void Cancel () { if (handler) handler (boost::asio::error::make_error_code (boost::asio::error::operation_aborted)); handler = nullptr; };
+	};	
+
+	class SendBufferQueue
+	{
+		public:
+
+			SendBufferQueue (): m_Size (0) {};
+			~SendBufferQueue () { CleanUp (); };
+
+			void Add (const uint8_t * buf, size_t len, SendHandler handler); 
+			size_t Get (uint8_t * buf, size_t len); 
+			size_t GetSize () const { return m_Size; };
+			bool IsEmpty () const { return m_Buffers.empty (); };
+			void CleanUp ();
+			
+		private:	
+
+			std::list<std::shared_ptr<SendBuffer> > m_Buffers;
+			size_t m_Size;
+	};	
+	
 	enum StreamStatus
 	{
 		eStreamStatusNew = 0,
@@ -118,8 +159,6 @@ namespace stream
 	{	
 		public:
 
-			typedef std::function<void (const boost::system::error_code& ecode)> SendHandler;
-
 			Stream (boost::asio::io_service& service, StreamingDestination& local, 
 				std::shared_ptr<const i2p::data::LeaseSet> remote, int port = 0); // outgoing
 			Stream (boost::asio::io_service& service, StreamingDestination& local); // incoming			
@@ -149,7 +188,7 @@ namespace stream
 			size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; };
 			size_t GetSendQueueSize () const { return m_SentPackets.size (); };
 			size_t GetReceiveQueueSize () const { return m_ReceiveQueue.size (); };
-			size_t GetSendBufferSize () const { return m_SendBuffer.rdbuf ()->in_avail (); };
+			size_t GetSendBufferSize () const { return m_SendBuffer.GetSize (); };
 			int GetWindowSize () const { return m_WindowSize; };
 			int GetRTT () const { return m_RTT; };
 
@@ -202,11 +241,10 @@ namespace stream
 			uint16_t m_Port;
 
 			std::mutex m_SendBufferMutex;
-			std::stringstream m_SendBuffer;
+			SendBufferQueue m_SendBuffer;
 			int m_WindowSize, m_RTT, m_RTO;
 			uint64_t m_LastWindowSizeIncreaseTime;
 			int m_NumResendAttempts;
-			SendHandler m_SendHandler;
 	};
 
 	class StreamingDestination: public std::enable_shared_from_this<StreamingDestination>

Tunnel.cpp

@@ -10,6 +10,7 @@
 #include "I2NPProtocol.h"
 #include "Transports.h"
 #include "NetDb.h"
+#include "Config.h"
 #include "Tunnel.h"
 #include "TunnelPool.h"
 #ifdef WITH_EVENTS
@@ -50,6 +51,7 @@ namespace tunnel
 		uint8_t * records = msg->GetPayload () + 1; 
 		TunnelHopConfig * hop = m_Config->GetFirstHop ();
 		int i = 0;
+		BN_CTX * ctx = BN_CTX_new ();
 		while (hop)
 		{
 			uint32_t msgID;
@@ -58,7 +60,7 @@ namespace tunnel
 			else
 				msgID = replyMsgID;
 			int idx = recordIndicies[i];
-			hop->CreateBuildRequestRecord (records + idx*TUNNEL_BUILD_RECORD_SIZE, msgID); 
+			hop->CreateBuildRequestRecord (records + idx*TUNNEL_BUILD_RECORD_SIZE, msgID, ctx); 
 			hop->recordIndex = idx; 
 			i++;
 #ifdef WITH_EVENTS
@@ -66,6 +68,7 @@ namespace tunnel
 #endif
 			hop = hop->next;
 		}
+		BN_CTX_free (ctx);
 #ifdef WITH_EVENTS
 		EmitTunnelEvent("tunnel.build", this, peers);
 #endif
@@ -741,7 +744,11 @@ namespace tunnel
 			CreateZeroHopsOutboundTunnel ();
 			if (!m_ExploratoryPool)
 			{
-				m_ExploratoryPool = CreateTunnelPool (2, 2, 3, 3); // 2-hop exploratory, 3 tunnels
+				int ibLen; i2p::config::GetOption("exploratory.inbound.length", ibLen);
+				int obLen; i2p::config::GetOption("exploratory.outbound.length", obLen);
+				int ibNum; i2p::config::GetOption("exploratory.inbound.quantity", ibNum);
+				int obNum; i2p::config::GetOption("exploratory.outbound.quantity", obNum);
+				m_ExploratoryPool = CreateTunnelPool (ibLen, obLen, ibNum, obNum); 
 				m_ExploratoryPool->SetLocalDestination (i2p::context.GetSharedDestination ());
 			}
 			return;

TunnelConfig.h

@@ -83,7 +83,7 @@ namespace tunnel
 			}	
 		}
 
-		void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID) const
+		void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID, BN_CTX * ctx) const
 		{
 			uint8_t clearText[BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE];
 			htobe32buf (clearText + BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET, tunnelID); 
@@ -101,7 +101,7 @@ namespace tunnel
 			htobe32buf (clearText + BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET, i2p::util::GetHoursSinceEpoch ()); 
 			htobe32buf (clearText + BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET, replyMsgID); 
 			RAND_bytes (clearText + BUILD_REQUEST_RECORD_PADDING_OFFSET, BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE - BUILD_REQUEST_RECORD_PADDING_OFFSET);
-			i2p::crypto::ElGamalEncrypt (ident->GetEncryptionPublicKey (), clearText, record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET);
+			i2p::crypto::ElGamalEncrypt (ident->GetEncryptionPublicKey (), clearText, record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET, ctx);
 			memcpy (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)ident->GetIdentHash (), 16);
 		}	
 	};	

android/jni/Android.mk

@@ -59,6 +59,7 @@ LOCAL_SRC_FILES := DaemonAndroid.cpp i2pd_android.cpp \
     ../../TunnelPool.cpp \
 	../../Timestamp.cpp \
 	../../Event.cpp \
+	../../Gost.cpp \
 	../../WebSocks.cpp \
 ../../BloomFilter.cpp \
     ../../util.cpp \
@@ -109,13 +110,6 @@ LOCAL_EXPORT_C_INCLUDES := $(OPENSSL_PATH)/openssl-1.1.0e/include
 LOCAL_STATIC_LIBRARIES := crypto
 include $(PREBUILT_STATIC_LIBRARY)
 
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-LOCAL_MODULE := gost_engine
-LOCAL_SRC_FILES := $(GOST_PATH)/gost-engine/$(TARGET_ARCH_ABI)/lib/libgost.a
-LOCAL_EXPORT_C_INCLUDES := $(GOST_PATH)/gost-engine/include
-include $(PREBUILT_STATIC_LIBRARY)
-
 LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 LOCAL_MODULE := miniupnpc

android/jni/Application.mk

@@ -30,4 +30,3 @@ BOOST_PATH = $(I2PD_LIBS_PATH)/Boost-for-Android-Prebuilt
 OPENSSL_PATH = $(I2PD_LIBS_PATH)/OpenSSL-for-Android-Prebuilt
 MINIUPNP_PATH = $(I2PD_LIBS_PATH)/MiniUPnP-for-Android-Prebuilt
 IFADDRS_PATH = $(I2PD_LIBS_PATH)/android-ifaddrs
-GOST_PATH = $(I2PD_LIBS_PATH)/GOST-Engine-for-Android-Prebuilt

appveyor.yml

@@ -1,4 +1,4 @@
-version: 1.0.{build}
+version: 2.12.{build}
 pull_requests:
   do_not_increment_build_number: true
 branches:
@@ -8,190 +8,41 @@ skip_tags: true
 os: Visual Studio 2015
 shallow_clone: true
 clone_depth: 1
-init:
-- cmd: >-
-    mkdir \projects\instdir
-
-    rem Appveyor has win32 openssl pre-installed that is picked up erroneously even for 64-bit. Cleaning the mess... Should happen before restoring cache.
-
-    rem Might consider passing OPENSSL_ROOT_DIR
-
-    if exist \OpenSSL-Win32 rmdir /S /Q \OpenSSL-Win32
 
-    if exist \OpenSSL-Win64 rmdir /S /Q \OpenSSL-Win64
-
-    if exist \OpenSSL rmdir /S /Q \OpenSSL
 environment:
-  BOOST_ROOT: C:\Libraries\boost_1_59_0
+  MSYS2_PATH_TYPE: inherit
-  MINIUPNPC: miniupnpc-1.9.20151026
+  CHERE_INVOKING: enabled_from_arguments
-  OPENSSL: OpenSSL_1_0_2e
-  ZLIB: zlib-1.2.8
   matrix:
-  # - type: static
+  - MSYSTEM: MINGW64
-  #   msvc: 14
+  - MSYSTEM: MINGW32
-  #   x64: 0
+
-  # - type: static
-  #   variant: Release
-  #   # FIXME why is this necessary with Appveyor???
-  #   cmake: -DSSL_EAY=/mingw32/lib/libssl.a -DLIB_EAY=/mingw32/lib/libcrypto.a
-  - type: shared
-    variant: Release
-  - type: static
-    msvc: 12
-    x64: 1
-    variant: RelWithDebInfo
-  - type: static
-    msvc: 14
-    variant: RelWithDebInfo
-    cmake: -DWITH_PCH=ON
-  # - type: static
-  #   msvc: 12
-  # - type: shared
-  #   msvc: 14
-  #   variant: Debug
-  # - type: shared
-  #   variant: Release
-  #   cmake: -DWITH_PCH=ON
-  #   x64: 1
 install:
-- if not exist \projects\miniupnpc\ (
+- c:\msys64\usr\bin\bash -lc "pacman --noconfirm -Rns gcc-fortran gcc"
-    mkdir \projects\miniupnpc
+- c:\msys64\usr\bin\bash -lc "pacman --noconfirm -Syuu"
-    && curl -sL http://miniupnp.free.fr/files/download.php?file=%MINIUPNPC%.tar.gz -o \projects\miniupnpc\%MINIUPNPC%.tar.gz
+- c:\msys64\usr\bin\bash -lc "pacman --noconfirm -Syuu"
-  )
+
-- tar --strip-components=1 --directory=\projects\miniupnpc -xzf \projects\miniupnpc\%MINIUPNPC%.tar.gz
+- if "%MSYSTEM%" == "MINGW64" (
-- if not exist \projects\zlib\ (
+    c:\msys64\usr\bin\bash -lc "pacman --noconfirm -S mingw-w64-x86_64-boost mingw-w64-x86_64-miniupnpc"
-    mkdir \projects\zlib
-    && cd \projects\zlib
-    && curl -sLO http://zlib.net/%ZLIB%.tar.gz
-  )
-- tar --strip-components=1 --directory=\projects\zlib -xzf \projects\zlib\%ZLIB%.tar.gz
-- patch -p0 C:/projects/zlib/CMakeLists.txt %APPVEYOR_BUILD_FOLDER%/build/cmake-zlib-static.patch
-- patch -p0 C:/projects/zlib/CMakeLists.txt %APPVEYOR_BUILD_FOLDER%/build/cmake-zlib-amd64.patch
-- if "%type%" == "static" (
-    set "static=ON"
-    && set "boostlib=lib"
   ) else (
-    set "static=OFF"
+    c:\msys64\usr\bin\bash -lc "pacman --noconfirm -S mingw-w64-i686-boost mingw-w64-i686-miniupnpc"
-    && set "dll=dll"
   )
-- if "%x64%"=="1" (
+
+- if "%MSYSTEM%" == "MINGW64" (
     set "bitness=64"
-    && set "openssl_target=VC-WIN64A"
-    && set "zlib_asm=-DAMD64=ON"
   ) else (
     set "bitness=32"
-    && set "openssl_target=VC-WIN32"
-    && set "zlib_asm=-DASM686=ON "-DCMAKE_ASM_MASM_FLAGS=/W0 /safeseh""
-  )
-- C:\msys64\usr\bin\bash -lc "export PATH=/mingw%bitness%/bin:/usr/bin:. && cd /c/projects/miniupnpc && CC=gcc make -f Makefile.mingw init miniupnpc.dll > c:\projects\instdir\build_miniupnpc.log 2>&1 || cat c:\projects\instdir\build_miniupnpc.log"
-- set /a generator=%msvc%+2001
-- if defined msvc (
-    (
-      if "%x64%" == "1" (
-        call "C:\Program Files (x86)\Microsoft Visual Studio %msvc%.0\VC\vcvarsall.bat" amd64
-        && set "generator=Visual Studio %msvc% %generator% Win64"
-      ) else (
-        call "C:\Program Files (x86)\Microsoft Visual Studio %msvc%.0\VC\vcvarsall.bat" x86
-        && set "generator=Visual Studio %msvc% %generator%"
-      )
-    )
-    && set "zlib_root=C:/stage/zlib-Win%bitness%-vc%msvc%-%type%"
-    && if "%variant%" neq "Debug" (
-      set "boost_variant=variant=release"
-      && set "boostdbg=-gd"
-    )
-  ) else (
-    set "generator=Unix Makefiles"
-  )
-- if defined msvc if not exist %zlib_root% (
-    mkdir \projects\zlib-build
-    && cd \projects\zlib-build
-    && cmake ../zlib -G "%generator%" %zlib_asm% -DWITH_STATIC=%static% -DCMAKE_INSTALL_PREFIX=%zlib_root% > c:\projects\instdir\build_zlib.log
-    && cmake --build . --config Release --target INSTALL >> c:\projects\instdir\build_zlib.log
-    || type c:\projects\instdir\build_zlib.log
   )
-- cmd: >-
-    rem cinst nasm
-
-    cd \projects
-
-    if not exist nasm-2.11.08-installer.exe curl --silent --location --remote-name http://www.nasm.us/pub/nasm/releasebuilds/2.11.08/win32/nasm-2.11.08-installer.exe
 
-    nasm-2.11.08-installer.exe /S
-
-    set "PATH=%PATH%;C:\Program Files (x86)\nasm"
-
-    if not exist %OPENSSL%.zip curl --silent --location --remote-name https://github.com/openssl/openssl/archive/%OPENSSL%.zip
-- cd %BOOST_ROOT%
-- if defined msvc if not exist "stage%bitness%\lib\%boostlib%boost_system-vc%msvc%0-mt%boostdbg%*" (
-    bootstrap > c:\projects\instdir\build_boost.log
-    && b2 toolset=msvc-%msvc%.0 %boost_variant% link=%type% runtime-link=%type% address-model=%bitness% --build-type=minimal --with-filesystem --with-program_options --with-date_time --stagedir=stage%bitness% >> c:\projects\instdir\build_boost.log
-    || type c:\projects\instdir\build_boost.log
-  )
-- if defined msvc if not exist C:\stage\OpenSSL-Win%bitness%-vc%msvc%-%type%\ (
-    cd \projects
-    && 7z x %OPENSSL%.zip > NUL
-    && cd openssl-%OPENSSL%
-    && perl Configure %openssl_target% no-rc2 no-rc4 no-rc5 no-idea no-bf no-cast no-whirlpool no-md2 no-md4 no-ripemd no-mdc2 no-camellia no-seed no-comp no-krb5 no-gmp no-rfc3779 no-ec2m no-ssl2 no-jpake no-srp no-sctp no-srtp --prefix=c:\stage\OpenSSL-Win%bitness%-vc%msvc%-%type% > c:\projects\instdir\build_openssl.log
-    && ( if "%x64%" == "1" ( ms\do_win64a >> c:\projects\instdir\build_openssl.log ) else ( ms\do_nasm >> c:\projects\instdir\build_openssl.log ) )
-    && nmake -f ms\nt%dll%.mak install >> c:\projects\instdir\build_openssl.log 2>&1
-    || type c:\projects\instdir\build_openssl.log
-  )
-- mklink /J \OpenSSL \stage\OpenSSL-Win%bitness%-vc%msvc%-%type%
-- rem already there: mingw-w64-i686-openssl mingw-w64-i686-gcc
-- if not defined msvc (
-    C:\msys64\usr\bin\bash -lc "pacman --needed --noconfirm -Sy bash pacman pacman-mirrors msys2-runtime msys2-runtime-devel cmake"
-    && if "%x64%" == "1" (
-      C:\msys64\usr\bin\bash -lc "pacman --noconfirm -S mingw-w64-x86_64-openssl mingw-w64-x86_64-boost mingw-w64-x86_64-miniupnpc mingw-w64-x86_64-extra-cmake-modules"
-    ) else (
-      C:\msys64\usr\bin\bash -lc "pacman --noconfirm -S mingw-w64-i686-openssl mingw-w64-i686-boost mingw-w64-i686-miniupnpc mingw-w64-i686-extra-cmake-modules"
-    )
-  )
-cache:
-- C:\projects\%OPENSSL%.zip
-- C:\projects\nasm-2.11.08-installer.exe
-- C:\projects\miniupnpc\%MINIUPNPC%.tar.gz
-- C:\stage
-- '%BOOST_ROOT%\stage32'
-- '%BOOST_ROOT%\stage64'
-- C:\projects\zlib\%ZLIB%.tar.gz
 build_script:
 - cmd: >-
-    mkdir \projects\build
+    cd \projects\i2pd
-
-    rem FIXME use fixup_bundle in cmake
 
-    rem msbuild i2pd.sln /p:Configuration=Release
+    echo MSYSTEM = %MSYSTEM%, bitness = %bitness%
 
-    if defined variant ( set cmake_extra=-DCMAKE_BUILD_TYPE=%variant% && set "cmake_build=--config %variant%" )
+- c:\msys64\usr\bin\bash -lc "make USE_UPNP=yes -j2"
+- 7z a -tzip -mx9 -mmt i2pd-mingw-win%bitness%.zip i2pd.exe
 
-    echo "bitness=%bitness%; static=%static%; dll=%dll%; type=%type%; generator=%generator%; variant=%variant%; cmake=%cmake%; cmake_extra=%cmake_extra%"
-- if not defined msvc (
-    C:\msys64\usr\bin\bash -lc "export PATH=/mingw%bitness%/bin:/usr/bin && cd /c/projects/build && CC=/mingw%bitness%/bin/gcc.exe CXX=/mingw%bitness%/bin/g++.exe /usr/bin/cmake /c/projects/i2pd/build -G 'Unix Makefiles' -DWITH_AESNI=ON -DWITH_UPNP=ON %cmake% %cmake_extra% -DWITH_STATIC=%static% -DWITH_HARDENING=ON -DCMAKE_INSTALL_PREFIX:PATH=/c/projects/instdir -DCMAKE_FIND_ROOT_PATH=/mingw%bitness% && make install"
-    && 7z a -tzip -mx9 -mmt C:\projects\i2pd\i2pd-mingw-win%bitness%-%type%.zip C:\projects\instdir\* C:\msys64\mingw%bitness%\bin\zlib1.dll C:\msys64\mingw%bitness%\bin\*eay32.dll
-  )
-- rem We are fine with multiple generated configurations in MS solution. Will use later
-- if defined msvc (
-    cd \projects\build
-    && cmake ..\i2pd\build -G "%generator%" -DWITH_UPNP=ON %cmake% -DWITH_STATIC=%static% -DZLIB_ROOT=%zlib_root% -DBoost_LIBRARY_DIR:PATH=%BOOST_ROOT%/stage%bitness%/lib -DCMAKE_INSTALL_PREFIX:PATH=c:/projects/instdir
-    && cmake --build . %cmake_build% --target install
-    && 7z a -tzip -mx9 -mmt C:\projects\i2pd\i2pd-vc%msvc%-win%bitness%-%type%.zip C:\projects\instdir\*
-    && cmake --build . %cmake_build% --target package
-    && xcopy i2pd*win*.exe ..\i2pd\
-  )
 test: off
+
 artifacts:
-- path: i2pd-vc12-win64-static.zip
+- path: i2pd-mingw-win*.zip
-- path: i2pd-vc12-win32-static.zip
-- path: i2pd-vc12-win64-shared.zip
-- path: i2pd-vc12-win32-shared.zip
-- path: i2pd-vc14-win64-static.zip
-- path: i2pd-vc14-win32-static.zip
-- path: i2pd-vc14-win64-shared.zip
-- path: i2pd-vc14-win32-shared.zip
-- path: i2pd-mingw-win64-static.zip
-- path: i2pd-mingw-win32-static.zip
-- path: i2pd-mingw-win64-shared.zip
-- path: i2pd-mingw-win32-shared.zip
-- path: i2pd-2.1.0-win64.exe
-- path: i2pd-2.1.0-win32.exe

build/CMakeLists.txt

@@ -62,6 +62,7 @@ set (LIBI2PD_SRC
   "${CMAKE_SOURCE_DIR}/Timestamp.cpp"	
   "${CMAKE_SOURCE_DIR}/api.cpp"
   "${CMAKE_SOURCE_DIR}/Event.cpp"
+  "${CMAKE_SOURCE_DIR}/Gost.cpp"	
 )
 
 if (WITH_WEBSOCKETS)

contrib/build_mingw.cmd

@@ -1,22 +1,25 @@
 @echo off
-title ‘¡®àª  i2pd
+setlocal
 
-set "WD=C:\msys64"
+title Building i2pd
+
+set "WD=C:\msys64\usr\bin\"
+set MSYS2_PATH_TYPE=inherit
 set CHERE_INVOKING=enabled_from_arguments
-set MSYSCON=mintty.exe
+set MSYSCON=
 
-echo ‘¡®àª  i2pd ¤«ï win32. <EFBFBD> ¦¬¨â¥ Enter ¯®á«¥ ®ª®­ç ­¨ï ª®¬¯¨«ï樨...
+echo Building i2pd for win32. Press Enter after the end of compilation...
-set "MSYSTEM=MINGW32"
+set MSYSTEM=MINGW32
-set "CONTITLE=MinGW x32"
+set CONTITLE=MinGW x32
-start "%CONTITLE%" /WAIT C:\msys64\usr\bin\mintty.exe -i /msys2.ico /usr/bin/bash --login build_mingw.sh
+start "%CONTITLE%" /WAIT "%WD%bash" --login build_mingw.sh
-pause
+pause > nul
 
-echo ‘¡®àª  i2pd ¤«ï win64. <EFBFBD> ¦¬¨â¥ Enter ¯®á«¥ ®ª®­ç ­¨ï ª®¬¯¨«ï樨...
+echo Building i2pd for win64. Press Enter after the end of compilation...
-set "MSYSTEM=MINGW64"
+set MSYSTEM=MINGW64
-set "CONTITLE=MinGW x64"
+set CONTITLE=MinGW x64
-start "%CONTITLE%" /WAIT C:\msys64\usr\bin\mintty.exe -i /msys2.ico /usr/bin/bash --login build_mingw.sh
+start "%CONTITLE%" /WAIT "%WD%bash" --login build_mingw.sh
-pause
+pause > nul
 
-echo ‘¡®àª  § ¢¥à襭 ...
+echo Build complete...
 pause
 exit /b 0

contrib/build_mingw.sh

@@ -48,7 +48,8 @@ fi;
 echo "Собираем i2pd ${version} (коммит ${commit}) для ${arch}.";
 
 # Собираем приложение с разными параметрами, и архивируем в zip архивы.
-make USE_UPNP=yes USE_AVX=1 USE_AESNI=1 -j ${threads} > ${contrib}/build_avx_aesni.log 2>&1
+echo "Сборка AVX+AESNI";
+make USE_UPNP=yes USE_AVX=1 USE_AESNI=1 -j ${threads} > ${contrib}/build_${arch}_avx_aesni.log 2>&1
 if [ "$?" != 0 ]; then
 	echo "Сборка не удалась. Смотрите в build_avx_aesni.log";
 	exit 1;
@@ -56,7 +57,8 @@ fi;
 zip -9 ${contrib}/i2pd_${version}_${commit}_${arch}_mingw_avx_aesni.zip i2pd.exe >> /dev/null
 make clean >> /dev/null
 
-make USE_UPNP=yes USE_AVX=1 -j ${threads} > ${contrib}/build_avx.log 2>&1
+echo "Сборка AVX";
+make USE_UPNP=yes USE_AVX=1 -j ${threads} > ${contrib}/build_${arch}_avx.log 2>&1
 if [ "$?" != 0 ]; then
 	echo "Сборка не удалась. Смотрите в build_avx.log.";
 	exit 1;
@@ -64,7 +66,8 @@ fi;
 zip -9 ${contrib}/i2pd_${version}_${commit}_${arch}_mingw_avx.zip i2pd.exe >> /dev/null
 make clean >> /dev/null
 
-make USE_UPNP=yes USE_AESNI=1 -j ${threads} > ${contrib}/build_aesni.log 2>&1
+echo "Сборка AESNI";
+make USE_UPNP=yes USE_AESNI=1 -j ${threads} > ${contrib}/build_${arch}_aesni.log 2>&1
 if [ "$?" != 0 ]; then
 	echo "Сборка не удалась. Смотрите в build_aesni.log";
 	exit 1;
@@ -72,7 +75,8 @@ fi;
 zip -9 ${contrib}/i2pd_${version}_${commit}_${arch}_mingw_aesni.zip i2pd.exe >> /dev/null
 make clean >> /dev/null
 
-make USE_UPNP=yes -j ${threads} > ${contrib}/build.log 2>&1
+echo "Сборка без дополнительных инструкций";
+make USE_UPNP=yes -j ${threads} > ${contrib}/build_${arch}.log 2>&1
 if [ "$?" != 0 ]; then
 	echo "Сборка не удалась. Смотрите в build.log";
 	exit 1;

contrib/certificates/reseed/randomrng_at_mail.i2p.crt

@@ -0,0 +1,34 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

contrib/rpm/i2pd.spec

@@ -1,6 +1,8 @@
+%define build_timestamp %(date +"%Y%m%d")
+
 Name:           i2pd
-Version:        2.10.0
+Version:        2.12.0
-Release:        3%{?dist}
+Release:        %{build_timestamp}git%{?dist}
 Summary:        I2P router written in C++
 
 License:        BSD
@@ -101,6 +103,23 @@ getent passwd i2pd >/dev/null || \
 
 
 %changelog
+* Tue Feb 14 2017 orignal <i2porignal@yandex.ru> - 2.12.0
+- Additional HTTP and SOCKS proxy tunnels
+- Reseed from ZIP archive
+- 'X' bandwidth code
+- Reduced memory and file descriptors usage
+
+* Mon Dec 19 2016 orignal <i2porignal@yandex.ru> - 2.11.0
+- Full support of zero-hops tunnels
+- Tunnel configuration for HTTP and SOCKS proxy
+- Websockets support
+- Multiple acceptors for SAM destination
+- Routing path for UDP tunnels
+- Reseed through a floodfill
+- Use AVX instructions for DHT and HMAC if applicable
+- Fixed UPnP discovery bug, producing excessive CPU usage
+- Handle multiple lookups of the same LeaseSet correctly
+
 * Tue Oct 20 2016 Anatolii Vorona <vorona.tolik@gmail.com> - 2.10.0-3
 - add support C7
 - move rpm-related files to contrib folder

debian/changelog

@@ -2,7 +2,7 @@ i2pd (2.12.0-1) unstable; urgency=low
 
   * updated to version 2.12.0/0.9.28
 
- -- orignal <orignal@i2pmail.org>  Tue, 14 Feb 2016 17:59:30 +0000
+ -- orignal <orignal@i2pmail.org>  Tue, 14 Feb 2017 17:59:30 +0000
 
 i2pd (2.11.0-1) unstable; urgency=low
 

filelist.mk

@@ -5,7 +5,7 @@ LIB_SRC = \
   SSUSession.cpp SSUData.cpp Streaming.cpp Identity.cpp TransitTunnel.cpp \
   Transports.cpp Tunnel.cpp TunnelEndpoint.cpp TunnelPool.cpp TunnelGateway.cpp \
   Destination.cpp Base.cpp I2PEndian.cpp FS.cpp Config.cpp Family.cpp \
-  Config.cpp HTTP.cpp Timestamp.cpp util.cpp api.cpp Event.cpp
+  Config.cpp HTTP.cpp Timestamp.cpp util.cpp api.cpp Event.cpp Gost.cpp
 
 LIB_CLIENT_SRC = \
 	AddressBook.cpp BOB.cpp ClientContext.cpp I2PTunnel.cpp I2PService.cpp \

qt/i2pd_qt/i2pd_qt.pro

@@ -36,7 +36,7 @@ SOURCES += DaemonQT.cpp mainwindow.cpp \
 	../../SSUData.cpp ../../SSUSession.cpp ../../Streaming.cpp ../../TransitTunnel.cpp \
 	../../Transports.cpp ../../Tunnel.cpp ../../TunnelEndpoint.cpp ../../TunnelGateway.cpp \
 	../../TunnelPool.cpp ../../UPnP.cpp ../../Gzip.cpp ../../Timestamp.cpp ../../util.cpp \
-	../../Event.cpp ../../BloomFilter.cpp ../../WebSocks.cpp ../../i2pd.cpp
+	../../Event.cpp ../../BloomFiler.cpp ../../Gost.cpp ../../i2pd.cpp
 
 HEADERS  += DaemonQT.h mainwindow.h \
 	../../HTTPServer.h ../../I2PControl.h ../../UPnP.h ../../Daemon.h ../../Config.h \
@@ -51,7 +51,7 @@ HEADERS  += DaemonQT.h mainwindow.h \
 	../../TransportSession.h ../../Tunnel.h ../../TunnelBase.h ../../TunnelConfig.h \
 	../../TunnelEndpoint.h ../../TunnelGateway.h ../../TunnelPool.h ../../UPnP.h \
 	../../util.h ../../version.h ../../Gzip.h ../../Tag.h \
-	../../BloomFilter.h ../../Event.h ../../WebSocks.h
+	../../BloomFiler.h ../../Event.h ../../Gost.h
 
 FORMS += mainwindow.ui
 

version.h

@@ -21,7 +21,7 @@
 
 #define I2P_VERSION_MAJOR 0
 #define I2P_VERSION_MINOR 9
-#define I2P_VERSION_MICRO 28
+#define I2P_VERSION_MICRO 29
 #define I2P_VERSION_PATCH 0
 #define I2P_VERSION MAKE_VERSION(I2P_VERSION_MAJOR, I2P_VERSION_MINOR, I2P_VERSION_MICRO)