tijian_tieying/web/Common/DEncrypt/RSACryption.cs

using System; 
using System.Text; 
using System.Security.Cryptography; 
namespace ZWL.Common.DEncrypt
{ 
	/// <summary> 
	/// RSA<53><41><EFBFBD>ܽ<EFBFBD><DCBD>ܼ<EFBFBD>RSAǩ<41><C7A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤
	/// </summary> 
	public class RSACryption 
	{ 		
		public RSACryption() 
		{ 			
		} 
		

		#region RSA <EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD><EFBFBD> 

		#region RSA <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
	
		/// <summary>
		/// RSA <20><><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>˽Կ <20>͹<EFBFBD>Կ 
		/// </summary>
		/// <param name="xmlKeys"></param>
		/// <param name="xmlPublicKey"></param>
		public void RSAKey(out string xmlKeys,out string xmlPublicKey) 
		{ 			
				System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider(); 
				xmlKeys=rsa.ToXmlString(true); 
				xmlPublicKey = rsa.ToXmlString(false); 			
		} 
		#endregion 

		#region RSA<EFBFBD>ļ<EFBFBD><EFBFBD>ܺ<EFBFBD><EFBFBD><EFBFBD> 
		//############################################################################## 
		//RSA <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD> 
		//˵<><CBB5>KEY<45><59><EFBFBD><EFBFBD><EFBFBD><EFBFBD>XML<4D><4C><EFBFBD><EFBFBD>ʽ,<2C><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> 
		//<2F><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ҫ˵<D2AA><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><C3BC>ܷ<EFBFBD>ʽ<EFBFBD><CABD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>Ƶģ<C6B5><C4A3><EFBFBD> 
		//############################################################################## 

		//RSA<53>ļ<EFBFBD><C4BC>ܺ<EFBFBD><DCBA><EFBFBD>  string
		public string RSAEncrypt(string xmlPublicKey,string m_strEncryptString ) 
		{ 
			
			byte[] PlainTextBArray; 
			byte[] CypherTextBArray; 
			string Result; 
			RSACryptoServiceProvider rsa=new RSACryptoServiceProvider(); 
			rsa.FromXmlString(xmlPublicKey); 
			PlainTextBArray = (new UnicodeEncoding()).GetBytes(m_strEncryptString); 
			CypherTextBArray = rsa.Encrypt(PlainTextBArray, false); 
			Result=Convert.ToBase64String(CypherTextBArray); 
			return Result; 
			
		} 
		//RSA<53>ļ<EFBFBD><C4BC>ܺ<EFBFBD><DCBA><EFBFBD> byte[]
		public string RSAEncrypt(string xmlPublicKey,byte[] EncryptString ) 
		{ 
			
			byte[] CypherTextBArray; 
			string Result; 
			RSACryptoServiceProvider rsa=new RSACryptoServiceProvider(); 
			rsa.FromXmlString(xmlPublicKey); 
			CypherTextBArray = rsa.Encrypt(EncryptString, false); 
			Result=Convert.ToBase64String(CypherTextBArray); 
			return Result; 
			
		} 
		#endregion 

		#region RSA<EFBFBD>Ľ<EFBFBD><EFBFBD>ܺ<EFBFBD><EFBFBD><EFBFBD> 
		//RSA<53>Ľ<EFBFBD><C4BD>ܺ<EFBFBD><DCBA><EFBFBD>  string
		public string RSADecrypt(string xmlPrivateKey, string m_strDecryptString ) 
		{			
			byte[] PlainTextBArray; 
			byte[] DypherTextBArray; 
			string Result; 
			System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider(); 
			rsa.FromXmlString(xmlPrivateKey); 
			PlainTextBArray =Convert.FromBase64String(m_strDecryptString); 
			DypherTextBArray=rsa.Decrypt(PlainTextBArray, false); 
			Result=(new UnicodeEncoding()).GetString(DypherTextBArray); 
			return Result; 
			
		} 

		//RSA<53>Ľ<EFBFBD><C4BD>ܺ<EFBFBD><DCBA><EFBFBD>  byte
		public string RSADecrypt(string xmlPrivateKey, byte[] DecryptString ) 
		{			
			byte[] DypherTextBArray; 
			string Result; 
			System.Security.Cryptography.RSACryptoServiceProvider rsa=new RSACryptoServiceProvider(); 
			rsa.FromXmlString(xmlPrivateKey); 
			DypherTextBArray=rsa.Decrypt(DecryptString, false); 
			Result=(new UnicodeEncoding()).GetString(DypherTextBArray); 
			return Result; 
			
		} 
		#endregion 

		#endregion 

		#region RSA<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǩ<EFBFBD><EFBFBD> 

		#region <EFBFBD><EFBFBD>ȡHash<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
		//<2F><>ȡHash<73><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
		public bool GetHash(string m_strSource, ref byte[] HashData) 
		{ 			
			//<2F><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>Hash<73><68><EFBFBD><EFBFBD> 
			byte[] Buffer; 
			System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5"); 
			Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource); 
			HashData = MD5.ComputeHash(Buffer); 

			return true; 			
		} 

		//<2F><>ȡHash<73><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
		public bool GetHash(string m_strSource, ref string strHashData) 
		{ 
			
			//<2F><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>Hash<73><68><EFBFBD><EFBFBD> 
			byte[] Buffer; 
			byte[] HashData; 
			System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5"); 
			Buffer = System.Text.Encoding.GetEncoding("GB2312").GetBytes(m_strSource); 
			HashData = MD5.ComputeHash(Buffer); 

			strHashData = Convert.ToBase64String(HashData); 
			return true; 
			
		} 

		//<2F><>ȡHash<73><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
		public bool GetHash(System.IO.FileStream objFile, ref byte[] HashData) 
		{ 
			
			//<2F><><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>ȡ<EFBFBD><C8A1>Hash<73><68><EFBFBD><EFBFBD> 
			System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5"); 
			HashData = MD5.ComputeHash(objFile); 
			objFile.Close(); 

			return true; 
			
		} 

		//<2F><>ȡHash<73><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
		public bool GetHash(System.IO.FileStream objFile, ref string strHashData) 
		{ 
			
			//<2F><><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>ȡ<EFBFBD><C8A1>Hash<73><68><EFBFBD><EFBFBD> 
			byte[] HashData; 
			System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5"); 
			HashData = MD5.ComputeHash(objFile); 
			objFile.Close(); 

			strHashData = Convert.ToBase64String(HashData); 

			return true; 
			
		} 
		#endregion 

		#region RSAǩ<EFBFBD><EFBFBD> 
		//RSAǩ<41><C7A9> 
		public bool SignatureFormatter(string p_strKeyPrivate, byte[] HashbyteSignature, ref byte[] EncryptedSignatureData) 
		{ 
			
				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPrivate); 
				System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA); 
				//<2F><><EFBFBD><EFBFBD>ǩ<EFBFBD><C7A9><EFBFBD><EFBFBD><EFBFBD>㷨ΪMD5 
				RSAFormatter.SetHashAlgorithm("MD5"); 
				//ִ<><D6B4>ǩ<EFBFBD><C7A9> 
				EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); 

				return true; 
			
		} 

		//RSAǩ<41><C7A9> 
		public bool SignatureFormatter(string p_strKeyPrivate, byte[] HashbyteSignature, ref string m_strEncryptedSignatureData) 
		{ 
			
				byte[] EncryptedSignatureData; 

				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPrivate); 
				System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA); 
				//<2F><><EFBFBD><EFBFBD>ǩ<EFBFBD><C7A9><EFBFBD><EFBFBD><EFBFBD>㷨ΪMD5 
				RSAFormatter.SetHashAlgorithm("MD5"); 
				//ִ<><D6B4>ǩ<EFBFBD><C7A9> 
				EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); 

				m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData); 

				return true; 
			
		} 

		//RSAǩ<41><C7A9> 
		public bool SignatureFormatter(string p_strKeyPrivate, string m_strHashbyteSignature, ref byte[] EncryptedSignatureData) 
		{ 
			
				byte[] HashbyteSignature; 

				HashbyteSignature = Convert.FromBase64String(m_strHashbyteSignature); 
				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPrivate); 
				System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA); 
				//<2F><><EFBFBD><EFBFBD>ǩ<EFBFBD><C7A9><EFBFBD><EFBFBD><EFBFBD>㷨ΪMD5 
				RSAFormatter.SetHashAlgorithm("MD5"); 
				//ִ<><D6B4>ǩ<EFBFBD><C7A9> 
				EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); 

				return true; 
			
		} 

		//RSAǩ<41><C7A9> 
		public bool SignatureFormatter(string p_strKeyPrivate, string m_strHashbyteSignature, ref string m_strEncryptedSignatureData) 
		{ 
			
				byte[] HashbyteSignature; 
				byte[] EncryptedSignatureData; 

				HashbyteSignature = Convert.FromBase64String(m_strHashbyteSignature); 
				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPrivate); 
				System.Security.Cryptography.RSAPKCS1SignatureFormatter RSAFormatter = new System.Security.Cryptography.RSAPKCS1SignatureFormatter(RSA); 
				//<2F><><EFBFBD><EFBFBD>ǩ<EFBFBD><C7A9><EFBFBD><EFBFBD><EFBFBD>㷨ΪMD5 
				RSAFormatter.SetHashAlgorithm("MD5"); 
				//ִ<><D6B4>ǩ<EFBFBD><C7A9> 
				EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); 

				m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData); 

				return true; 
			
		} 
		#endregion 

		#region RSA ǩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤ 

		public bool SignatureDeformatter(string p_strKeyPublic, byte[] HashbyteDeformatter, byte[] DeformatterData) 
		{ 
			
				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPublic); 
				System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA); 
				//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1>HASH<53>㷨ΪMD5 
				RSADeformatter.SetHashAlgorithm("MD5"); 

				if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData)) 
				{ 
					return true; 
				} 
				else 
				{ 
					return false; 
				} 
			
		} 

		public bool SignatureDeformatter(string p_strKeyPublic, string p_strHashbyteDeformatter, byte[] DeformatterData) 
		{ 
			
				byte[] HashbyteDeformatter; 

				HashbyteDeformatter = Convert.FromBase64String(p_strHashbyteDeformatter); 

				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPublic); 
				System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA); 
				//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1>HASH<53>㷨ΪMD5 
				RSADeformatter.SetHashAlgorithm("MD5"); 

				if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData)) 
				{ 
					return true; 
				} 
				else 
				{ 
					return false; 
				} 
			
		} 

		public bool SignatureDeformatter(string p_strKeyPublic, byte[] HashbyteDeformatter, string p_strDeformatterData) 
		{ 
			
				byte[] DeformatterData; 

				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPublic); 
				System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA); 
				//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1>HASH<53>㷨ΪMD5 
				RSADeformatter.SetHashAlgorithm("MD5"); 

				DeformatterData =Convert.FromBase64String(p_strDeformatterData); 

				if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData)) 
				{ 
					return true; 
				} 
				else 
				{ 
					return false; 
				} 
			
		} 

		public bool SignatureDeformatter(string p_strKeyPublic, string p_strHashbyteDeformatter, string p_strDeformatterData) 
		{ 
			
				byte[] DeformatterData; 
				byte[] HashbyteDeformatter; 

				HashbyteDeformatter = Convert.FromBase64String(p_strHashbyteDeformatter); 
				System.Security.Cryptography.RSACryptoServiceProvider RSA = new System.Security.Cryptography.RSACryptoServiceProvider(); 

				RSA.FromXmlString(p_strKeyPublic); 
				System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA); 
				//ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1>HASH<53>㷨ΪMD5 
				RSADeformatter.SetHashAlgorithm("MD5"); 

				DeformatterData =Convert.FromBase64String(p_strDeformatterData); 

				if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData)) 
				{ 
					return true; 
				} 
				else 
				{ 
					return false; 
				} 
			
		} 


		#endregion 


		#endregion 

	} 
}