--------------- 因为加密个解密都需要用到key所有在加密的后需要把key和加密码都存到数据库中
/// <summary>
/// 唯一加密方式 /// </summary> /// <param name="texts"></param> /// <returns></returns> public static string WeiJiaMiGuid(string texts) { string Keys = GenerateKey(); return MD5Encrypt(texts, Keys) + "=" + Keys; //这里我把要加密的字符串和生成的key给拼接起来，这样我在调用 WeiJiaMiGuid方法是只需要传文本框text值就可以了； }
------------------------取出加密时存在数据库的加密码和key
/// <summary> /// 唯一解密方式 /// </summary> /// <param name="texts"></param> /// <returns></returns> public static string WeiYiJieMiGuid(string texts) { string[] pwa = texts.Split(new char[] { '=' }); //分割一下 然后调解密 return GXC.Commonality.CommGUID.MD5Decrypt(pwa[0], pwa[1]);}
/// <summary>
/// 创建Key /// </summary> /// <returns></returns> public static string GenerateKey() { DESCryptoServiceProvider desCrypto = (DESCryptoServiceProvider)DESCryptoServiceProvider.Create(); return ASCIIEncoding.ASCII.GetString(desCrypto.Key); }
/// <summary>
/// MD5加密 /// </summary> /// <param name="pToEncrypt"></param> /// <param name="sKey"></param> /// <returns></returns> public static string MD5Encrypt(string pToEncrypt, string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt); des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); foreach (byte b in ms.ToArray()) { ret.AppendFormat("{0:X2}", b); } ret.ToString(); return ret.ToString(); }/// <summary>
/// MD5解密 /// </summary> /// <param name="pToDecrypt"></param> /// <param name="sKey"></param> /// <returns></returns> public static string MD5Decrypt(string pToDecrypt, string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider();byte[] inputByteArray = new byte[pToDecrypt.Length / 2];
for (int x = 0; x < pToDecrypt.Length / 2; x++) { int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16)); inputByteArray[x] = (byte)i; }des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); MemoryStream ms = new MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock();StringBuilder ret = new StringBuilder();
return System.Text.Encoding.Default.GetString(ms.ToArray());
}
复制就可以用 无需改动 16位加密方式