From 7ccb7f05bf8d0f7771d1aa6f75b4b9828f7f7cca Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Wed, 10 Dec 2014 15:48:07 -0500
Subject: [PATCH] added RSA verifier

---
 Identity.h  |  3 +++
 Signature.h | 35 ++++++++++++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/Identity.h b/Identity.h
index 1a245421..e4f8bd59 100644
--- a/Identity.h
+++ b/Identity.h
@@ -113,6 +113,9 @@ namespace data
 	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;
 	typedef uint16_t SigningKeyType;
 	typedef uint16_t CryptoKeyType;	
 	
diff --git a/Signature.h b/Signature.h
index 1ea386f9..f998eb86 100644
--- a/Signature.h
+++ b/Signature.h
@@ -3,6 +3,7 @@
 
 #include <inttypes.h>
 #include <cryptopp/dsa.h>
+#include <cryptopp/rsa.h>
 #include <cryptopp/asn.h>
 #include <cryptopp/oids.h>
 #include <cryptopp/osrng.h>
@@ -230,7 +231,39 @@ namespace crypto
 	{
 		CreateECDSARandomKeys<CryptoPP::SHA512> (rnd, CryptoPP::ASN1::secp521r1(), ECDSAP521_KEY_LENGTH, signingPrivateKey, signingPublicKey);
 	}
-	
+
+// RSA
+	template<typename Hash, size_t keyLength>	
+	class RSAVerifier: public Verifier
+	{
+		public:
+
+			RSAVerifier (const uint8_t * signingKey)
+			{
+				// TODO
+			}
+
+			bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const 
+			{
+				typename CryptoPP::RSASS<CryptoPP::PKCS1v15, Hash>::Verifier verifier (m_PublicKey);
+				return verifier.VerifyMessage (buf, len, signature, keyLength); // signature length
+			}
+			size_t GetPublicKeyLen () const { return keyLength; }
+			size_t GetSignatureLen () const { return keyLength; }	
+
+		private:
+			
+			CryptoPP::RSA::PublicKey m_PublicKey;			
+	};	
+
+//  RSA_SHA256_2048
+	const size_t RSASHA2562048_KEY_LENGTH =256;
+	class RSASHA2562048Verifier: public RSAVerifier<CryptoPP::SHA256, RSASHA2562048_KEY_LENGTH> 
+	{
+		public:
+
+			RSASHA2562048Verifier (const uint8_t * signingKey): RSAVerifier (signingKey) {};
+	};
 }
 }