這篇文章主要介紹了ASP.NET中DES加密與解密MD5的示例分析，具有一定借鑒價(jià)值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓小編帶著大家一起了解一下。
重慶分公司
重慶分公司
public class TrialHelper
{ //默認(rèn)密鑰向量
private static byte[] Keys = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF };
///
/// DES加密字符串
///
/// 待加密的字符串
/// 加密密鑰,要求為8位
/// 加密成功返回加密后的字符串，失敗返回源串
public static string EncryptDES( string encryptString, string encryptKey = "" )
{
try
{
if (string.IsNullOrEmpty(encryptKey) || encryptKey.Length < 8)
{
encryptKey = "winform01";
}
byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8));
byte[] rgbIV = Keys;
byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Convert.ToBase64String(mStream.ToArray());
}
catch
{
return encryptString;
}
}
///
/// DES解密字符串
///
/// 待解密的字符串
/// 解密密鑰,要求為8位,和加密密鑰相同
/// 解密成功返回解密后的字符串，失敗返源串
public static string DecryptDES( string decryptString, string decryptKey = "" )
{
try
{
if (string.IsNullOrEmpty(decryptKey) || decryptKey.Length < 8)
{
decryptKey = "winform01";
}
byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey.Substring(0, 8));
byte[] rgbIV = Keys;
byte[] inputByteArray = Convert.FromBase64String(decryptString);
DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
cStream.Write(inputByteArray, 0, inputByteArray.Length);
cStream.FlushFinalBlock();
return Encoding.UTF8.GetString(mStream.ToArray());
}
catch
{
return decryptString;
}
}
///
/// MD5數(shù)據(jù)加密
///
/// 加密字段
/// 加密后的字符串
public static string GetMD5( string sDataIn )
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytValue, bytHash;
bytValue = System.Text.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;
}
} 調(diào)用：
//獲取登錄信息 loginRecord.Name = tbName.Text.Trim(); loginRecord.MD5Pwd = TrialHelper.GetMD5(tbPwd.Password); //保存到數(shù)據(jù)庫(kù)MD5加密方式 loginRecord.Pwd = TrialHelper.EncryptDES(tbPwd.Password);//記住密碼des加密方式，保存到本地
感謝你能夠認(rèn)真閱讀完這篇文章，希望小編分享的“ASP.NET中DES加密與解密MD5的示例分析”這篇文章對(duì)大家有幫助，同時(shí)也希望大家多多支持創(chuàng)新互聯(lián)，關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道，更多相關(guān)知識(shí)等著你來(lái)學(xué)習(xí)!
