Java暗号化とC#復号=>DESメソッド
5822 ワード
Java暗号化コード:
C#暗号化コード:
特にキーキー=文字列の長さは8桁でなければなりません
import javax.crypto.*;
import javax.crypto.*;
import java.io.UnsupportedEncodingException;
import java.security.spec.*;
import javax.crypto.spec.*;
public class DES {
public DES()
{
}
public String encrypt(String str) {
byte[] enc = null;
try {
enc = desEncrypt(str, "abcdefgh");
}
catch (Exception ex) {
}
return new sun.misc.BASE64Encoder().encode(enc);
}
public static byte[] desEncrypt(String message, String key) throws Exception {
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));
cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
return cipher.doFinal(message.getBytes("UTF-8"));
}
}
C#暗号化コード:
/// <param name="pToDecrypt"> Base64</param>
/// <param name="sKey"> , 8 。</param>
/// <returns> 。</returns>
public string Decrypt(string pToDecrypt, string sKey)
{
byte[] inputByteArray = Convert.FromBase64String(pToDecrypt);
using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
{
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
cs.Close();
}
string str = Encoding.UTF8.GetString(ms.ToArray());
ms.Close();
return str;
}
}
特にキーキー=文字列の長さは8桁でなければなりません