C#自定义RSA加密解密及RSA签名和验证类实例
发布时间:2020-12-15 05:55:17 所属栏目:百科 来源:网络整理
导读:本篇章节讲解C#自定义RSA加密解密及RSA签名和验证类。供大家参考研究。具体分析如下: 这个C#类自定义RSA加密解密及RSA签名和验证,包含了RSA加密、解密及签名所需的相关函数,带有详细的注释说明。 using System; using System.Text; using System.
本篇章节讲解C#自定义RSA加密解密及RSA签名和验证类。分享给大家供大家参考。具体分析如下: 这个C#类自定义RSA加密解密及RSA签名和验证,包含了RSA加密、解密及签名所需的相关函数,带有详细的注释说明。 using System; using System.Text; using System.Security.Cryptography; namespace DotNet.Utilities { /// <summary> /// RSA加密解密及RSA签名和验证 /// </summary> public class RSACryption { public RSACryption() { } #region RSA 加密解密 #region RSA 的密钥产生 /// <summary> /// RSA 的密钥产生 产生私钥 和公钥 /// </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的加密函数 //############################################################################## //RSA 方式加密 //说明KEY必须是XML的行式,返回的是字符串 //在有一点需要说明!!该加密方式有 长度 限制的!! //############################################################################## //RSA的加密函数 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的加密函数 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的解密函数 //RSA的解密函数 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的解密函数 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数字签名 #region 获取Hash描述表 //获取Hash描述表 ,sharejs.com public bool GetHash(string m_strSource,ref byte[] HashData) { //从字符串中取得Hash描述 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; } //获取Hash描述表 public bool GetHash(string m_strSource,ref string strHashData) { //从字符串中取得Hash描述 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; } //获取Hash描述表 public bool GetHash(System.IO.FileStream objFile,ref byte[] HashData) { //从文件中取得Hash描述 System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5"); HashData = MD5.ComputeHash(objFile); objFile.Close(); return true; } //获取Hash描述表 public bool GetHash(System.IO.FileStream objFile,ref string strHashData) { //从文件中取得Hash描述 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 RSA签名 //RSA签名 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); //设置签名的算法为MD5 RSAFormatter.SetHashAlgorithm("MD5"); //执行签名 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); return true; } //RSA签名 public bool SignatureFormatter(string p_strKeyPrivate,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); //设置签名的算法为MD5 RSAFormatter.SetHashAlgorithm("MD5"); //执行签名 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData); return true; } //RSA签名 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); //设置签名的算法为MD5 RSAFormatter.SetHashAlgorithm("MD5"); //执行签名 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); return true; } //RSA签名 public bool SignatureFormatter(string p_strKeyPrivate,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); //设置签名的算法为MD5 RSAFormatter.SetHashAlgorithm("MD5"); //执行签名 EncryptedSignatureData = RSAFormatter.CreateSignature(HashbyteSignature); m_strEncryptedSignatureData = Convert.ToBase64String(EncryptedSignatureData); return true; } #endregion #region RSA 签名验证 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); //指定解密的时候HASH算法为MD5 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); //指定解密的时候HASH算法为MD5 RSADeformatter.SetHashAlgorithm("MD5"); if(RSADeformatter.VerifySignature(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); //指定解密的时候HASH算法为MD5 RSADeformatter.SetHashAlgorithm("MD5"); DeformatterData =Convert.FromBase64String(p_strDeformatterData); if(RSADeformatter.VerifySignature(HashbyteDeformatter,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); //指定解密的时候HASH算法为MD5 RSADeformatter.SetHashAlgorithm("MD5"); DeformatterData =Convert.FromBase64String(p_strDeformatterData); if(RSADeformatter.VerifySignature(HashbyteDeformatter,DeformatterData)) { return true; } else { return false; } } #endregion #endregion } } 希望本文所述对大家的C#程序设计有所帮助。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |