restructure build to separate the 3 main components into 3 subdirectories

libi2pd for core libs

libi2pd_client for i2pd client libs

daemon for i2pd daemon libs

libi2pd/Identity.h

@@ -0,0 +1,202 @@
+#ifndef IDENTITY_H__
+#define IDENTITY_H__
+
+#include <inttypes.h>
+#include <string.h>
+#include <string>
+#include <memory>
+#include <atomic>
+#include "Base.h"
+#include "Signature.h"
+
+namespace i2p
+{
+namespace data
+{
+	typedef Tag<32> IdentHash;
+	inline std::string GetIdentHashAbbreviation (const IdentHash& ident) 
+	{ 
+		return ident.ToBase64 ().substr (0, 4); 
+	}
+
+	struct Keys
+	{
+		uint8_t privateKey[256];
+		uint8_t signingPrivateKey[20];
+		uint8_t publicKey[256];
+		uint8_t signingKey[128];
+	};
+	
+	const uint8_t CERTIFICATE_TYPE_NULL = 0;
+	const uint8_t CERTIFICATE_TYPE_HASHCASH = 1;
+	const uint8_t CERTIFICATE_TYPE_HIDDEN = 2;
+	const uint8_t CERTIFICATE_TYPE_SIGNED = 3;	
+	const uint8_t CERTIFICATE_TYPE_MULTIPLE = 4;	
+	const uint8_t CERTIFICATE_TYPE_KEY = 5;
+
+	struct Identity
+	{
+		uint8_t publicKey[256];
+		uint8_t signingKey[128];
+		uint8_t certificate[3];	// byte 1 - type, bytes 2-3 - length
+
+		Identity () = default;
+		Identity (const Keys& keys) { *this = keys; };
+		Identity& operator=(const Keys& keys);
+		size_t FromBuffer (const uint8_t * buf, size_t len);
+		IdentHash Hash () const;
+	};
+
+	Keys CreateRandomKeys ();
+	
+	const size_t DEFAULT_IDENTITY_SIZE = sizeof (Identity); // 387 bytes
+	
+	const uint16_t CRYPTO_KEY_TYPE_ELGAMAL = 0;
+	const uint16_t SIGNING_KEY_TYPE_DSA_SHA1 = 0;
+	const uint16_t SIGNING_KEY_TYPE_ECDSA_SHA256_P256 = 1;
+	const uint16_t SIGNING_KEY_TYPE_ECDSA_SHA384_P384 = 2;
+	const uint16_t SIGNING_KEY_TYPE_ECDSA_SHA512_P521 = 3;
+	const uint16_t SIGNING_KEY_TYPE_RSA_SHA256_2048 = 4;
+	const uint16_t SIGNING_KEY_TYPE_RSA_SHA384_3072 = 5;
+	const uint16_t SIGNING_KEY_TYPE_RSA_SHA512_4096 = 6;
+	const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519 = 7;
+	const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519ph = 8; // not implemented
+	// following signature type should never appear in netid=2
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256 = 9;
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512 = 10; // approved by FSB
+	// TODO: remove later	
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256_TEST = 65281;
+	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512_TEST = 65282;	
+
+	typedef uint16_t SigningKeyType;
+	typedef uint16_t CryptoKeyType;	
+	
+	class IdentityEx
+	{
+		public:
+
+			IdentityEx ();
+			IdentityEx (const uint8_t * publicKey, const uint8_t * signingKey,
+				SigningKeyType type = SIGNING_KEY_TYPE_DSA_SHA1);
+			IdentityEx (const uint8_t * buf, size_t len);
+			IdentityEx (const IdentityEx& other);
+			IdentityEx (const Identity& standard);
+			~IdentityEx ();
+			IdentityEx& operator=(const IdentityEx& other);
+			IdentityEx& operator=(const Identity& standard);
+
+			size_t FromBuffer (const uint8_t * buf, size_t len);
+			size_t ToBuffer (uint8_t * buf, size_t len) const;
+			size_t FromBase64(const std::string& s);
+			std::string ToBase64 () const;
+			const Identity& GetStandardIdentity () const { return m_StandardIdentity; };
+			const IdentHash& GetIdentHash () const { return m_IdentHash; };
+			const uint8_t * GetEncryptionPublicKey () const { return m_StandardIdentity.publicKey; };
+			size_t GetFullLen () const { return m_ExtendedLen + DEFAULT_IDENTITY_SIZE; };
+			size_t GetSigningPublicKeyLen () const;
+			size_t GetSigningPrivateKeyLen () const;
+			size_t GetSignatureLen () const;
+			bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const;
+			SigningKeyType GetSigningKeyType () const;
+			CryptoKeyType GetCryptoKeyType () const;
+			void DropVerifier () const; // to save memory			
+
+      bool operator == (const IdentityEx & other) const { return GetIdentHash() == other.GetIdentHash(); }
+      
+		private:
+
+			void CreateVerifier () const;
+			void UpdateVerifier (i2p::crypto::Verifier * verifier) const;
+			
+		private:
+
+			Identity m_StandardIdentity;
+			IdentHash m_IdentHash;
+			mutable std::unique_ptr<i2p::crypto::Verifier> m_Verifier; 
+			mutable std::atomic_bool m_IsVerifierCreated; // make sure we don't create twice
+			size_t m_ExtendedLen;
+			uint8_t * m_ExtendedBuffer;
+	};	
+	
+	class PrivateKeys // for eepsites
+	{
+		public:
+			
+			PrivateKeys () = default;
+			PrivateKeys (const PrivateKeys& other) { *this = other; };
+			PrivateKeys (const Keys& keys) { *this = keys; };
+			PrivateKeys& operator=(const Keys& keys);
+			PrivateKeys& operator=(const PrivateKeys& other);
+			~PrivateKeys () = default;
+			
+			std::shared_ptr<const IdentityEx> GetPublic () const { return m_Public; };
+			const uint8_t * GetPrivateKey () const { return m_PrivateKey; };
+			const uint8_t * GetSigningPrivateKey () const { return m_SigningPrivateKey; };
+			void Sign (const uint8_t * buf, int len, uint8_t * signature) const;
+
+			size_t GetFullLen () const { return m_Public->GetFullLen () + 256 + m_Public->GetSigningPrivateKeyLen (); }; 		
+			size_t FromBuffer (const uint8_t * buf, size_t len);
+			size_t ToBuffer (uint8_t * buf, size_t len) const;
+
+			size_t FromBase64(const std::string& s);
+			std::string ToBase64 () const;
+
+			static PrivateKeys CreateRandomKeys (SigningKeyType type = SIGNING_KEY_TYPE_DSA_SHA1);
+	
+		private:
+
+			void CreateSigner () const;
+			
+		private:
+
+			std::shared_ptr<IdentityEx> m_Public;
+			uint8_t m_PrivateKey[256];
+			uint8_t m_SigningPrivateKey[1024]; // assume private key doesn't exceed 1024 bytes
+			mutable std::unique_ptr<i2p::crypto::Signer> m_Signer;
+	};
+
+	// kademlia
+	struct XORMetric
+	{
+		union
+		{	
+			uint8_t metric[32];
+			uint64_t metric_ll[4];	
+		};	
+
+		void SetMin () { memset (metric, 0, 32); };
+		void SetMax () { memset (metric, 0xFF, 32); };
+		bool operator< (const XORMetric& other) const { return memcmp (metric, other.metric, 32) < 0; };
+	};	
+
+	IdentHash CreateRoutingKey (const IdentHash& ident);
+	XORMetric operator^(const IdentHash& key1, const IdentHash& key2); 	
+	
+	// destination for delivery instuctions
+	class RoutingDestination
+	{
+		public:
+
+			RoutingDestination () {};
+			virtual ~RoutingDestination () {};
+			
+			virtual const IdentHash& GetIdentHash () const = 0;
+			virtual const uint8_t * GetEncryptionPublicKey () const = 0;
+			virtual bool IsDestination () const = 0; // for garlic 
+	};	
+
+	class LocalDestination 
+	{
+		public:
+
+			virtual ~LocalDestination() {};
+			virtual const uint8_t * GetEncryptionPrivateKey () const = 0; 
+			virtual std::shared_ptr<const IdentityEx> GetIdentity () const = 0;
+
+			const IdentHash& GetIdentHash () const { return GetIdentity ()->GetIdentHash (); };  
+	};	
+}
+}
+
+
+#endif