[原创]C#文本加密

MD5加密

public string GetMD5(string sDataIn)
        {
            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
            byte[] bytValue, bytHash;
            bytValue = Encoding.UTF8.GetBytes(sDataIn);
            bytHash = md5.ComputeHash(bytValue);
            md5.Clear();
            string sTemp = "";
            for (int i = 0; i < bytHash.Length; i++)
            {
                sTemp += bytHash[i].ToString("X").PadLeft(2, '0');
            }
            return sTemp.ToLower();
        }

SHA1加密

public string GetSHA1(string data)
        {
            var bytes = Encoding.Default.GetBytes(data);
            var SHA = new SHA1CryptoServiceProvider();
            var encryptbytes = SHA.ComputeHash(bytes);
            return Base64To16(encryptbytes);
        }

SHA256加密

public string GetSHA256(string data)
        {
            byte[] bytes = Encoding.UTF8.GetBytes(data);
            byte[] hash = SHA256.Create().ComputeHash(bytes);

            StringBuilder builder = new StringBuilder();
            for (int i = 0; i < hash.Length; i++)
            {
                builder.Append(hash[i].ToString("X2"));
            }

            return builder.ToString();
        }

SHA384加密

public string SHA384Encrypt(string data)
        {
            var bytes = Encoding.Default.GetBytes(data);
            var SHA384 = new SHA384CryptoServiceProvider();
            var encryptbytes = SHA384.ComputeHash(bytes);
            return Base64To16(encryptbytes);
        }

SHA512加密

public string GetSHA512(string strData)
        {
            byte[] bytValue = Encoding.UTF8.GetBytes(strData);
            try
            {
                SHA512 sha512 = new SHA512CryptoServiceProvider();
                byte[] retVal = sha512.ComputeHash(bytValue);
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < retVal.Length; i++)
                {
                    sb.Append(retVal[i].ToString("x2"));
                }
                return sb.ToString();
            }
            catch (Exception ex)
            {
                throw new Exception("error:" + ex.Message);
            }
        }

Base64加密

public string Base64Encode(Encoding encodeType, string source)
        {
            string encode = string.Empty;
            byte[] bytes = encodeType.GetBytes(source);
            try
            {
                encode = Convert.ToBase64String(bytes);
            }
            catch
            {
                encode = source;
            }
            return encode;
        }

DES加密

public static string DESEncrypt(string originalValue, string key, string iv)
        {
            using (DESCryptoServiceProvider sa
                = new DESCryptoServiceProvider { Key = Encoding.UTF8.GetBytes(key), IV =Encoding.UTF8.GetBytes(iv)})
            {
                using (ICryptoTransform ct = sa.CreateEncryptor())
                {
                    byte[] by = Encoding.UTF8.GetBytes(originalValue);
                    using (var ms = new MemoryStream())
                    {
                        using (var cs = new CryptoStream(ms, ct,
                                                         CryptoStreamMode.Write))
                        {
                            cs.Write(by, 0, by.Length);
                            cs.FlushFinalBlock();
                        }
                        return Convert.ToBase64String(ms.ToArray());
                    }
                }
            }
        }

DES解密

public static string DESDecrypt(string encryptedValue, string key, string iv)
        {
            using (DESCryptoServiceProvider sa =
                new DESCryptoServiceProvider
                { Key = Encoding.UTF8.GetBytes(key), IV = Encoding.UTF8.GetBytes(iv) })
            {
                using (ICryptoTransform ct = sa.CreateDecryptor())
                {
                    byte[] byt = Convert.FromBase64String(encryptedValue);

                    using (var ms = new MemoryStream())
                    {
                        using (var cs = new CryptoStream(ms, ct, CryptoStreamMode.Write))
                        {
                            cs.Write(byt, 0, byt.Length);
                            cs.FlushFinalBlock();
                        }
                        return Encoding.UTF8.GetString(ms.ToArray());
                    }
                }
            }
        }

AES加密

public string AESEncrypt(string encryptStr, string encryptKey)
         {
             if (string.IsNullOrWhiteSpace(encryptStr))
                 return string.Empty;

             encryptKey = StringHelper.SubString(encryptKey, 32);
             encryptKey = encryptKey.PadRight(32, ' ');

             SymmetricAlgorithm des = Rijndael.Create();
             byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptStr);
             des.Key = Encoding.UTF8.GetBytes(encryptKey);
             des.IV = _aeskeys;
             byte[] cipherBytes = null;
             using (MemoryStream ms = new MemoryStream())
             {
                 using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
                 {
                     cs.Write(inputByteArray, 0, inputByteArray.Length);
                     cs.FlushFinalBlock();
                     cipherBytes = ms.ToArray();
                     cs.Close();
                     ms.Close();
                 }
             }
             return Convert.ToBase64String(cipherBytes);
         }

AES解密

public string AESDecrypt(string decryptStr, string decryptKey)
         {
             if (string.IsNullOrWhiteSpace(decryptStr))
                 return string.Empty;

             decryptKey = StringHelper.SubString(decryptKey, 32);
             decryptKey = decryptKey.PadRight(32, ' ');

             byte[] cipherText = Convert.FromBase64String(decryptStr);

             SymmetricAlgorithm des = Rijndael.Create();
             des.Key = Encoding.UTF8.GetBytes(decryptKey);
             des.IV = _aeskeys;
             byte[] decryptBytes = new byte[cipherText.Length];
             using (MemoryStream ms = new MemoryStream(cipherText))
             {
                 using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Read))
                 {
                     cs.Read(decryptBytes, 0, decryptBytes.Length);
                     cs.Close();
                     ms.Close();
                 }
             }
             return Encoding.UTF8.GetString(decryptBytes).Replace("\0", "");
         }