C# RSA、AES加密解密

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https://www.jb51.net/article/88109.htm
https://www.jb51.net/article/168179.htm
https://blog.csdn.net/yupu56/article/details/72624229

public class DecryptionTool{/// <summary>/// RSA加密/// </summary>/// <param name="strText">待加密内容</param>/// <param name="strPublicKey">公钥</param>/// <returns></returns>public string Encrypt(string strText, string strPublicKey){RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();rsa.FromXmlString(strPublicKey);byte[] byteText = Encoding.UTF8.GetBytes(strText);byte[] byteEntry = rsa.Encrypt(byteText, false);return Convert.ToBase64String(byteEntry);}/// <summary>/// RSA解密/// </summary>/// <param name="strEntryText">待解密</param>/// <param name="strPrivateKey">私钥</param>/// <returns></returns>public string Decrypt(string strEntryText, string strPrivateKey){RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();rsa.FromXmlString(strPrivateKey);byte[] byteEntry = Convert.FromBase64String(strEntryText);byte[] byteText = rsa.Decrypt(byteEntry, false);return Encoding.UTF8.GetString(byteText);}/// <summary>/// 获取密钥/// </summary>/// <returns></returns>public Dictionary<string, string> GetKey(){Dictionary<string, string> dictKey = new Dictionary<string, string>();RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();dictKey.Add("PublicKey", rsa.ToXmlString(false));dictKey.Add("PrivateKey", rsa.ToXmlString(true));return dictKey;}/// <summary>/// 生成数字签名/// </summary>/// <param name="originalText">原文</param>/// <param name="privateKey"></param>/// <returns></returns>public string GenSign(string originalText, string privateKey){byte[] byteData = Encoding.UTF8.GetBytes(originalText);RSACryptoServiceProvider provider = new RSACryptoServiceProvider();provider.FromXmlString(privateKey);//使用SHA1进行摘要算法，生成签名byteData = provider.SignData(byteData, new SHA1CryptoServiceProvider());return Convert.ToBase64String(byteData);}/// <summary>/// 验证签名/// </summary>/// <param name="originalText">原文</param>/// <param name="SignedData">签名</param>/// <param name="publicKey">公钥</param>/// <returns></returns>public bool VerifySigned(string originalText, string signedData, string publicKey){RSACryptoServiceProvider provider = new RSACryptoServiceProvider();provider.FromXmlString(publicKey);byte[] byteData = Encoding.UTF8.GetBytes(originalText);byte[] signData = Convert.FromBase64String(signedData);return provider.VerifyData(byteData, new SHA1CryptoServiceProvider(), signData);}/// <summary>  /// RSA私钥格式转换，java->.net  /// </summary>  /// <param name="privateKey">java生成的RSA私钥</param>  /// <returns></returns>  public string RSAPrivateKeyJava2DotNet(string privateKey){RsaPrivateCrtKeyParameters privateKeyParam = (RsaPrivateCrtKeyParameters)PrivateKeyFactory.CreateKey(Convert.FromBase64String(privateKey));return string.Format("<RSAKeyValue><Modulus>{0}</Modulus><Exponent>{1}</Exponent><P>{2}</P><Q>{3}</Q><DP>{4}</DP><DQ>{5}</DQ><InverseQ>{6}</InverseQ><D>{7}</D></RSAKeyValue>",Convert.ToBase64String(privateKeyParam.Modulus.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.PublicExponent.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.P.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.Q.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.DP.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.DQ.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.QInv.ToByteArrayUnsigned()),Convert.ToBase64String(privateKeyParam.Exponent.ToByteArrayUnsigned()));}/// <summary>/// AES加密/// </summary>/// <param name="text">加密字符</param>/// <param name="password">加密的密码</param>/// <param name="iv">密钥</param>/// <returns></returns>public string AESEncrypt(string text, string password, string iv){RijndaelManaged rijndaelCipher = new RijndaelManaged();rijndaelCipher.Mode = CipherMode.CBC;rijndaelCipher.Padding = PaddingMode.PKCS7;rijndaelCipher.KeySize = 128;rijndaelCipher.BlockSize = 128;byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);byte[] keyBytes = new byte[16];int len = pwdBytes.Length;if (len > keyBytes.Length) len = keyBytes.Length;System.Array.Copy(pwdBytes, keyBytes, len);rijndaelCipher.Key = keyBytes;byte[] ivBytes = System.Text.Encoding.UTF8.GetBytes(iv);rijndaelCipher.IV = new byte[16];ICryptoTransform transform = rijndaelCipher.CreateEncryptor();byte[] plainText = Encoding.UTF8.GetBytes(text);byte[] cipherBytes = transform.TransformFinalBlock(plainText, 0, plainText.Length);return Convert.ToBase64String(cipherBytes);}/// <summary>/// AES解密/// </summary>/// <param name="text"></param>/// <param name="password"></param>/// <param name="iv"></param>/// <returns></returns>public string AESDecrypt(string text, string password, string iv){RijndaelManaged rijndaelCipher = new RijndaelManaged();rijndaelCipher.Mode = CipherMode.CBC;rijndaelCipher.Padding = PaddingMode.PKCS7;rijndaelCipher.KeySize = 128;rijndaelCipher.BlockSize = 128;byte[] encryptedData = Convert.FromBase64String(text);byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);byte[] keyBytes = new byte[16];int len = pwdBytes.Length;if (len > keyBytes.Length) len = keyBytes.Length;System.Array.Copy(pwdBytes, keyBytes, len);rijndaelCipher.Key = keyBytes;byte[] ivBytes = System.Text.Encoding.UTF8.GetBytes(iv);rijndaelCipher.IV = ivBytes;ICryptoTransform transform = rijndaelCipher.CreateDecryptor();byte[] plainText = transform.TransformFinalBlock(encryptedData, 0, encryptedData.Length);return Encoding.UTF8.GetString(plainText);}}

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C# RSA、AES加密解密

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