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129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
#ifndef IDENTITY_H__
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#define IDENTITY_H__
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#include <inttypes.h>
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#include <string.h>
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#include "ElGamal.h"
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namespace i2p
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{
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namespace data
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{
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#pragma pack(1)
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struct Keys
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{
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uint8_t privateKey[256];
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uint8_t signingPrivateKey[20];
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uint8_t publicKey[256];
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uint8_t signingKey[128];
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};
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struct Identity
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{
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uint8_t publicKey[256];
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uint8_t signingKey[128];
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uint8_t certificate[3];
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Identity& operator=(const Keys& keys);
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};
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struct PrivateKeys // for eepsites
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{
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Identity pub;
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uint8_t privateKey[256];
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uint8_t signingPrivateKey[20];
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PrivateKeys& operator=(const Keys& keys);
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};
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#pragma pack()
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class IdentHash
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{
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public:
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IdentHash (const uint8_t * hash) { memcpy (m_Hash, hash, 32); };
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IdentHash (const IdentHash& ) = default;
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#ifndef _WIN32 // FIXME!!! msvs 2013 can't compile it
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IdentHash (IdentHash&& ) = default;
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#endif
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IdentHash () = default;
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IdentHash& operator= (const IdentHash& ) = default;
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#ifndef _WIN32
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IdentHash& operator= (IdentHash&& ) = default;
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#endif
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uint8_t * operator()() { return m_Hash; };
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const uint8_t * operator()() const { return m_Hash; };
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operator uint8_t * () { return m_Hash; };
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operator const uint8_t * () const { return m_Hash; };
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bool operator== (const IdentHash& other) const { return !memcmp (m_Hash, other.m_Hash, 32); };
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bool operator< (const IdentHash& other) const { return memcmp (m_Hash, other.m_Hash, 32) < 0; };
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private:
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uint8_t m_Hash[32];
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};
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IdentHash CalculateIdentHash (const Identity& identity);
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Keys CreateRandomKeys ();
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// kademlia
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struct RoutingKey
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{
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uint8_t hash[32];
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};
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struct XORMetric
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{
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uint8_t metric[32];
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void SetMin () { memset (metric, 0, 32); };
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void SetMax () { memset (metric, 0xFF, 32); };
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bool operator< (const XORMetric& other) const { return memcmp (metric, other.metric, 32) < 0; };
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};
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RoutingKey CreateRoutingKey (const IdentHash& ident);
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XORMetric operator^(const RoutingKey& key1, const RoutingKey& key2);
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// destination for delivery instuctions
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class RoutingDestination
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{
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public:
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RoutingDestination (): m_ElGamalEncryption (nullptr) {};
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virtual ~RoutingDestination () { delete m_ElGamalEncryption; };
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virtual const IdentHash& GetIdentHash () const = 0;
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virtual const uint8_t * GetEncryptionPublicKey () const = 0;
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virtual bool IsDestination () const = 0; // for garlic
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i2p::crypto::ElGamalEncryption * GetElGamalEncryption () const
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{
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if (!m_ElGamalEncryption)
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m_ElGamalEncryption = new i2p::crypto::ElGamalEncryption (GetEncryptionPublicKey ());
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return m_ElGamalEncryption;
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}
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private:
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mutable i2p::crypto::ElGamalEncryption * m_ElGamalEncryption; // use lazy initialization
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};
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class LocalDestination
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{
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public:
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virtual const IdentHash& GetIdentHash () const = 0;
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virtual void UpdateLeaseSet () = 0; // LeaseSet must be updated
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};
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}
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}
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#endif
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