C#DES加解密
1 2 3 4 5 6 7 8 9 10 11 | public static string Key { get { return key; } set { key = value; } } |
DES加密
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | /// <summary> /// DES Encrypt /// </summary> /// <param name="encryptString">要加密的字符串</param> /// <returns>加密后的字符串</returns> public static string DesEncrypt( string encryptString) { byte [] keyBytes = System.Text.Encoding.UTF8.GetBytes(key.Substring(0, 8)); byte [] keyIV = keyBytes; byte [] inputByteArray = Encoding.UTF8.GetBytes(encryptString); System.Security.Cryptography.DESCryptoServiceProvider provider = new System.Security.Cryptography.DESCryptoServiceProvider(); System.IO.MemoryStream mStream = new System.IO.MemoryStream(); System.Security.Cryptography.CryptoStream cStream = new System.Security.Cryptography.CryptoStream(mStream, provider.CreateEncryptor(keyBytes, keyIV), System.Security.Cryptography.CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Convert.ToBase64String(mStream.ToArray()); } |
DES解密
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /// <summary> /// Function : DES Decrypt /// </summary> /// <param name="decryptString">要解密的字符串</param> /// <returns>解密后的字符串</returns> public static string DesDecrypt( string decryptString) { byte [] keyBytes = Encoding.UTF8.GetBytes(key.Substring(0, 8)); byte [] keyIV = keyBytes; byte [] inputByteArray = Convert.FromBase64String(decryptString); System.Security.Cryptography.DESCryptoServiceProvider provider = new System.Security.Cryptography.DESCryptoServiceProvider(); System.IO.MemoryStream mStream = new System.IO.MemoryStream(); System.Security.Cryptography.CryptoStream cStream = new System.Security.Cryptography.CryptoStream(mStream, provider.CreateDecryptor(keyBytes, keyIV), System.Security.Cryptography.CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Encoding.UTF8.GetString(mStream.ToArray()); } |
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