/// <summary>
/// DES + Base64 ¼ÓÃÜ
/// </summary>
/// <param name="input">Ã÷ÎÄ×Ö·û´®</param>
/// <returns>ÒѼÓÃÜ×Ö·û´®</returns>
public static string DesBase64Encrypt(string input, string decryptKey)
{
System.Security.Cryptography.DES des = System.Security.Cryptography.DES.Create();
des.Mode = System.Security.Cryptography.CipherMode.ECB;
ICryptoTransform ct;
MemoryStream ms;
CryptoStream cs;
byte[] byt;
byte[] Key = Encoding.UTF8.GetBytes(decryptKey);
byte[] IV = Encoding.UTF8.GetBytes(decryptKey);
ct = des.CreateEncryptor(Key, IV);
byt = Encoding.GetEncoding("GB2312").GetBytes(input); //¸ù¾Ý GB2312 ±àÂë¶Ô×Ö·û´®´¦Àí£¬×ª»»³É byte Êý×é
ms = new MemoryStream();
cs = new CryptoStream(ms, ct, CryptoStreamMode.Write);
cs.Write(byt, 0, byt.Length);
cs.FlushFinalBlock();
cs.Close();
byte[] answer = ms.ToArray();
for (int j = 0; j < answer.Length; j++)
{
Console.Write(answer[j].ToString() + " ");
}
Console.WriteLine();
return(Convert.ToBase64String(ms.ToArray())); // ½«¼ÓÃÜµÄ byte Êý×éÒÀÕÕ Base64 ±àÂëת»»³É×Ö·û´®
}
/// <summary>
/// DES + Base64 加密
/// </summary>
/// <param name="input">明文字符串</param>
/// <returns>已加密字符串</returns>
public static string DesBase64EncryptForID5(string input)
{
System.Security.Cryptography.DES des = System.Security.Cryptography.DES.Create();
des.Mode = System.Security.Cryptography.CipherMode.CBC;
ICryptoTransform ct;
MemoryStream ms;
CryptoStream cs;
byte[] byt;
byte[] Key = new byte[8] {
56, 50, 55, 56, 56, 55, 49, 49
};
byte[] IV = new byte[8] {
56, 50, 55, 56, 56, 55, 49, 49
};
ct = des.CreateEncryptor(Key, IV);
byt = Encoding.GetEncoding("GB2312").GetBytes(input); //根据 GB2312 编码对字符串处理，转换成 byte 数组
ms = new MemoryStream();
cs = new CryptoStream(ms, ct, CryptoStreamMode.Write);
cs.Write(byt, 0, byt.Length);
cs.FlushFinalBlock();
cs.Close();
byte[] answer = ms.ToArray();
for (int j = 0; j < answer.Length; j++)
{
Console.Write(answer[j].ToString() + " ");
}
Console.WriteLine();
return(Convert.ToBase64String(ms.ToArray())); // 将加密的 byte 数组依照 Base64 编码转换成字符串
}
/// <summary>
///
/// </summary>
/// <param name="strData"></param>
/// <param name="des"></param>
/// <returns></returns>
public byte[] EncryptString(string strData, DES des)
{
ExceptionHelper.FalseThrow<ArgumentNullException>(des != null, "des");
byte[] bytes = Encoding.UTF8.GetBytes(strData);
MemoryStream mStream = new MemoryStream();
try
{
CryptoStream encStream = new CryptoStream(mStream, des.CreateEncryptor(), CryptoStreamMode.Write);
try
{
encStream.Write(bytes, 0, bytes.Length);
}
finally
{
encStream.Close();
}
return mStream.ToArray();
}
finally
{
mStream.Close();
}
}
/// <summary>
/// 加密byte[]
/// </summary>
/// <param name="plainText">原内容</param>
/// <param name="encryptKey">密码密钥</param>
/// <returns></returns>
public static byte[] EncryptBuffer(byte[] plainText, string encryptKey)
{
//cipherkey = TextUtility.CutLeft(cipherkey, 8); cipherkey.PadRight(8, ' ');
encryptKey = DES.GetPassword(encryptKey);
using System.Security.Cryptography.DES myAes = System.Security.Cryptography.DES.Create(); //DESCryptoServiceProvider aesCryptoServiceProvider = new();
using ICryptoTransform cryptoTransform = myAes.CreateEncryptor(Encoding.UTF8.GetBytes(encryptKey), DES.Keys);
return(cryptoTransform.TransformFinalBlock(plainText, 0, plainText.Length));
}
public void GenerateKeys()
{
des.GenerateKey();
if (des.Mode == CipherMode.CBC)
{
des.GenerateIV();
}
encrypt = des.CreateEncryptor();
decrypt = des.CreateDecryptor();
}
private DESCipher(System.Security.Cryptography.DES des)
{
this.des.Mode = des.Mode;
this.des.KeySize = des.KeySize;
this.des.BlockSize = des.BlockSize;
this.des.Key = des.Key;
this.des.IV = des.IV;
encrypt = des.CreateEncryptor();
decrypt = des.CreateDecryptor();
}
public string Encrypt(string value)
{
System.Security.Cryptography.DES des = System.Security.Cryptography.DES.Create();
byte[] tmp = Encoding.UTF8.GetBytes(value);
Byte[] encryptoData;
ICryptoTransform encryptor = des.CreateEncryptor(key, iv);
using (MemoryStream memoryStream = new MemoryStream()) {
using (var cs = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write)) {
using (StreamWriter writer = new StreamWriter(cs)) {
writer.Write(value);
writer.Flush();
}
}
encryptoData = memoryStream.ToArray();
}
des.Clear();
return(Convert.ToBase64String(encryptoData));
}
/// <summary>
/// 加密
/// </summary>
/// <param name="plainText">明文</param>
/// <param name="encryptKey">加密密钥</param>
/// <returns></returns>
public string Encrypt(string plainText, string encryptKey)
{
if (!string.IsNullOrEmpty(encryptKey))
{
this.key = encryptKey;
mCrypto.Key = GetLegalKey();
}
byte[] arrPlainText = Encoding.UTF8.GetBytes(plainText);
using (MemoryStream stream = new MemoryStream())
{
ICryptoTransform encryptor = mCrypto.CreateEncryptor();
using (CryptoStream cStream = new CryptoStream(stream, encryptor, CryptoStreamMode.Write))
{
cStream.Write(arrPlainText, 0, arrPlainText.Length);
cStream.FlushFinalBlock();
}
byte[] outputBytes = stream.ToArray();
return(Convert.ToBase64String(outputBytes));
}
}
public override ICryptoTransform CreateEncryptor() => _impl.CreateEncryptor();
private string RunEsOrDs(string ValueString, string Key, bool EsOrDs)
{
string RET = string.Empty;
try
{
if (!string.IsNullOrEmpty(ValueString) && !string.IsNullOrEmpty(Key))
{
Key = Key + Key.Length;
string k = string.Empty;
using (System.Security.Cryptography.MD5 md = System.Security.Cryptography.MD5.Create())
{
k = BitConverter.ToString(md.ComputeHash(Encoding.UTF8.GetBytes(Key))).Replace("-", string.Empty);
}
byte[] inputByteArray = EsOrDs ? System.Text.Encoding.UTF8.GetBytes(ValueString) : System.Convert.FromBase64String(ValueString);
byte[] rgbKey = System.Text.Encoding.UTF8.GetBytes(k.Substring(0, 8));
byte[] rgbIV = System.Text.Encoding.UTF8.GetBytes(k.Substring(k.Length - 8, 8));
using (System.Security.Cryptography.DES DCSP = System.Security.Cryptography.DES.Create())
{
using (System.IO.MemoryStream mStream = new System.IO.MemoryStream())
{
using (System.Security.Cryptography.CryptoStream cStream = new System.Security.Cryptography.CryptoStream(mStream, EsOrDs ? DCSP.CreateEncryptor(rgbKey, rgbIV) : DCSP.CreateDecryptor(rgbKey, rgbIV), System.Security.Cryptography.CryptoStreamMode.Write))
{
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
RET = EsOrDs ? System.Convert.ToBase64String(mStream.ToArray()) : System.Text.Encoding.UTF8.GetString(mStream.ToArray());
}
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return(RET);
}
