Merge pull request #916 from majestrate/vanity

add stuff for address generator tool

libi2pd/Identity.cpp

@@ -136,10 +136,7 @@ namespace data
 				delete[] excessBuf;
 			}
 			// calculate ident hash
-			uint8_t * buf = new uint8_t[GetFullLen ()];
-			ToBuffer (buf, GetFullLen ());
-			SHA256(buf, GetFullLen (), m_IdentHash);
-			delete[] buf;
+			RecalculateIdentHash();
 		}
 		else // DSA-SHA1
 		{
@@ -152,6 +149,18 @@ namespace data
 		CreateVerifier ();
 	}
 
+	void IdentityEx::RecalculateIdentHash(uint8_t * buf)
+	{
+		bool dofree = buf == nullptr;
+		size_t sz = GetFullLen();
+		if(!buf)
+			buf = new uint8_t[sz];
+		ToBuffer (buf, sz);
+		SHA256(buf, sz, m_IdentHash);
+		if(dofree)
+			delete[] buf;
+	}
+
 	IdentityEx::IdentityEx (const uint8_t * buf, size_t len):
 		m_IsVerifierCreated (false), m_ExtendedLen (0), m_ExtendedBuffer (nullptr)
 	{
@@ -556,6 +565,14 @@ namespace data
 		}
 	}
 
+	uint8_t * PrivateKeys::GetPadding()
+	{
+		if(m_Public->GetSigningKeyType () == SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519)
+			return m_Public->GetEncryptionPublicKeyBuffer() + 256;
+		else
+			return nullptr; // TODO: implement me
+	}
+
 	PrivateKeys PrivateKeys::CreateRandomKeys (SigningKeyType type)
 	{
 		if (type != SIGNING_KEY_TYPE_DSA_SHA1)

libi2pd/Identity.h

@@ -90,8 +90,10 @@ namespace data
 			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; };
+    uint8_t * GetEncryptionPublicKeyBuffer () { return m_StandardIdentity.publicKey; };
 			size_t GetFullLen () const { return m_ExtendedLen + DEFAULT_IDENTITY_SIZE; };
 			size_t GetSigningPublicKeyLen () const;
 			size_t GetSigningPrivateKeyLen () const;
@@ -103,6 +105,8 @@ namespace data
 
       bool operator == (const IdentityEx & other) const { return GetIdentHash() == other.GetIdentHash(); }
 
+    void RecalculateIdentHash(uint8_t * buff=nullptr);
+
 		private:
 
 			void CreateVerifier () const;
@@ -132,6 +136,8 @@ namespace data
 			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; };
+    uint8_t * GetPadding();
+    void RecalculateIdentHash(uint8_t * buf=nullptr) { m_Public->RecalculateIdentHash(buf); }
 			void Sign (const uint8_t * buf, int len, uint8_t * signature) const;
 
 			size_t GetFullLen () const { return m_Public->GetFullLen () + 256 + m_Public->GetSigningPrivateKeyLen (); };