前言：
此刻兄弟们对“c语言实现des加密解密”都比较关心，小伙伴们都需要学习一些“c语言实现des加密解密”的相关资讯。那么小编在网摘上网罗了一些对于“c语言实现des加密解密””的相关文章，希望同学们能喜欢，看官们快快来学习一下吧！public class DES
{
/// <summary>
/// DES加密
/// </summary>
/// <param name="data">加密数据</param>
/// <param name="key">8位字符的密钥字符串</param>
/// <param name="iv">8位字符的初始化向量字符串</param>
/// <returns></returns>
public static string DESEncrypt(string data, string key, string iv)
{
byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(key);
byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(iv);
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);
}
/// <summary>
/// DES解密
/// </summary>
/// <param name="data">解密数据</param>
/// <param name="key">8位字符的密钥字符串(需要和加密时相同)</param>
/// <param name="iv">8位字符的初始化向量字符串(需要和加密时相同)</param>
/// <returns></returns>
public static string DESDecrypt(string data, string key, string iv)
{
byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(key);
byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(iv);
byte[] byEnc;
try
{
byEnc = Convert.FromBase64String(data);
}
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();
}
}
有需要的朋友Ctrl+c,Ctrl+v，同时欢迎批评指正
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