不多说,直接上代码。。。↓↓↓↓↓↓↓↓↓↓↓↓↓↓
1、定义8位的加密秘钥
/// <summary>
/// 加密密钥(8位)
/// </summary>
public static string KEY_64 = "00000000";
2、定义8位的初始化向量
/// <summary>
/// 加密初始化向量(8位)
/// </summary>
public static string IV_64 = "88888888";
3、通过初始化向量与加密秘钥生成加密内容
/// <summary>
/// 加密
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static string Encode(string data)
{
byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64);
byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64);
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
int i = cryptoProvider.KeySize;
MemoryStream ms = new MemoryStream();
CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write);
StreamWriter sw = new StreamWriter(cst);
sw.Write(data);
sw.Flush();
cst.FlushFinalBlock();
sw.Flush();
return Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length).Replace("=", "φ");
}
4、通过初始化向量与加密秘钥对加密内容进行解密
/// <summary>
/// 解密
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static string Decode(string data)
{
try
{
byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64);
byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64);
byte[] byEnc;
try
{
byEnc = Convert.FromBase64String(data.Replace("φ", "="));
}
catch
{
return null;
}
DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();
MemoryStream ms = new MemoryStream(byEnc);
CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cst);
return sr.ReadToEnd();
}
catch
{ return ""; }
}