標籤:des blog io os ar div on cti log
public static string Key { get { return key; } set { key = value; } }
DES加密
/// <summary> /// DES Encrypt /// </summary> /// <param name="encryptString">要加密的字串</param> /// <returns>加密後的字串</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
/// <summary> /// Function : DES Decrypt /// </summary> /// <param name="decryptString">要解密的字串</param> /// <returns>解密後的字串</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()); }
C#DES加解密