C#中DES加密
将16进制字符串AA02523AA1315B4D做密钥，加密 DD3C2751C735933B，最后得出来结果应该是416C15D746515C99具体怎么实现啊 C# 加密 16进制 DES --------------------编程问答-------------------- 有回答的没，分什么的都好商量，快帮帮小弟~ --------------------编程问答-------------------- 还要1个向量参数 --------------------编程问答--------------------
如果你要把字符串转成16进制的：
public static string StringTo16(string inputString)
{
byte[] encryptedBytes = Encoding.ASCII.GetBytes(inputString);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < encryptedBytes.Length; i++)
{
sb.AppendFormat("{0:x2}", encryptedBytes[i]);
}
return sb.ToString();
}
这个是加密和解密的
private static byte[] key = ASCIIEncoding.ASCII.GetBytes("caikelun");
private static byte[] iv = ASCIIEncoding.ASCII.GetBytes("12345678");
public static string DESEncrypt(string inputString)
{
MemoryStream ms = null;
CryptoStream cs = null;
StreamWriter sw = null;
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
try
{
ms = new MemoryStream();
cs = new CryptoStream(ms, des.CreateEncryptor(key, iv), CryptoStreamMode.Write);
sw = new StreamWriter(cs);
sw.Write(inputString);
sw.Flush();
cs.FlushFinalBlock();
return Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length);
}
finally
{
if (sw != null) sw.Close();
if (cs != null) cs.Close();
if (ms != null) ms.Close();
}
}
public static string DESDecrypt(string inputString)
{
MemoryStream ms = null;
CryptoStream cs = null;
StreamReader sr = null;
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
try
{
ms = new MemoryStream(Convert.FromBase64String(inputString));
cs = new CryptoStream(ms, des.CreateDecryptor(key, iv), CryptoStreamMode.Read);
sr = new StreamReader(cs);
return sr.ReadToEnd();
}
finally
{
if (sr != null) sr.Close();
if (cs != null) cs.Close();
if (ms != null) ms.Close();
}
} --------------------编程问答-------------------- 你在csdn下载收这个加密吧 有很多代码 --------------------编程问答--------------------
public class DESEncrypt
{
public DESEncrypt()
{
}
#region ========加密========
/// <summary>
/// 加密
/// </summary>
/// <param name="Text"></param>
/// <returns></returns>
public static string Encrypt(string Text)
{
return Encrypt(Text, "steel");
}
/// <summary>
/// 加密数据
/// </summary>
/// <param name="Text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Encrypt(string Text, string sKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray;
inputByteArray = Encoding.Default.GetBytes(Text);
des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
return ret.ToString();
}
#endregion
#region ========解密========
/// <summary>
/// 解密
/// </summary>
/// <param name="Text"></param>
/// <returns></returns>
public static string Decrypt(string Text)
{
return Decrypt(Text, "steel");
}
/// <summary>
/// 解密数据
/// </summary>
/// <param name="Text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Decrypt(string Text, string sKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
int len;
len = Text.Length / 2;
byte[] inputByteArray = new byte[len];
int x, i;
for (x = 0; x < len; x++)
{
i = Convert.ToInt32(Text.Substring(x * 2, 2), 16);
inputByteArray[x] = (byte)i;
}
des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return Encoding.Default.GetString(ms.ToArray());
}
#endregion
}
补充：.NET技术 , C#
