关于android手机密码password.key文件加密方式？

加密是类似下面的方法，盐值是在/data/data/com.android.providers.settings/databases/settings.db数据库secure的表里面，你文件里面看到的就是sha1+md5: (40位+32位)的值

public byte[] passwordToHash(String password)
{
    if (password == null)
    {
            return null;
        }
    String algo = null;
    byte[] hashed = null;
    try
        {
        byte[] saltedPassword = (password + getSalt()).getBytes();
        byte[] sha1 = MessageDigest.getInstance(algo = "SHA-1").digest(saltedPassword);
        byte[] md5 = MessageDigest.getInstance(algo = "MD5").digest(saltedPassword);
                hashed = (toHex(sha1) + toHex(md5)).getBytes();
        }
        catch (NoSuchAlgorithmException e)
    {
            Log.w(TAG, "Failed to encode string because of missing algorithm: " + algo);
    }
        return hashed;
}


Pull out the salt using adb. Salt is stored in the ‘secure’ table from /data/data/com.android.providers.settings/databases/settings.db
Get the password : sha1+md5: (40+32) (stored at /data/system/password.key)

Ex:

0C4C24508F0D29CF54FFC4DBC5520C3C10496F43313B4D3ADDFF8ACDD5C8DC3CA69CE740
Once you have the md5 and the salt you can brute force using the tools available in market (Ex hashcat) to get password.