skjohn 发表于 2015-11-14 16:04:09

关于一个cm的apk

本帖最后由 skjohn 于 2015-11-14 16:13 编辑

第一个aty就卡住了 密文是一个12长度的字符串 等分了三份 分别对其进行了加密
data:image/png;base64,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data:image/png;base64,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
第一个des的加密我算出来居然是长度为6的字符串 哪位大神帮我看下哈。。。apk的链接:http://pan.baidu.com/s/1gdGxhJH
核心的check代码
public class b
{
public static boolean a(String paramString)
{
    if (paramString.length() != 12) {}
    while ((!c.a(paramString.substring(0, 4))) || (!a.a(paramString.substring(4, 8))) || (!d.a(paramString.substring(8, 12)))) {
      return false;
    }
    return true;
}
}
然后是第一个DES的代码
public class c
{
public static boolean a(String paramString)
{
    Object localObject = null;
    paramString = b(paramString);
    try
    {
      SecretKey localSecretKey = SecretKeyFactory.getInstance("DES").generateSecret(new DESKeySpec("SyC10v3R".getBytes()));
      Cipher localCipher = Cipher.getInstance("DES");
      localCipher.init(1, localSecretKey);
      paramString = localCipher.doFinal(paramString.getBytes());
      if (Arrays.equals(paramString, new byte[] { -91, -104, -44, 107, 57, 80, -35, 96 })) {
      return true;
      }
    }



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