Comment #1 originally posted by josephw on 2011-05-29T05:41:44.000Z:

Thanks for this. It looks like the behaviour is different between MacOS and Windows.

One option is to fall back if one technique fails, but there may be fields in the header to distinguish between the two types beforehand.

Comment #2 originally posted by josephw on 2014-12-16T01:31:43.000Z:

// decrypt all full blocks in the body
Key key = new SecretKeySpec("BHUILuilfghuila3".getBytes(), "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
cipher.init(Cipher.DECRYPT_MODE, key);
int crypt_size = (data.length - header_size) & ~0xf;
int max_crypt_size = read32(data, 0x5C);
if (max_crypt_size != 0)
crypt_size = Math.min(crypt_size, max_crypt_size);
cipher.doFinal(data, header_size, crypt_size, data, header_size);

    // un-zip body
    Inflater inflater = new Inflater();
    inflater.setInput(data, header_size, data.length - header_size);
    byte[] clear_data = new byte[65536];
    while (!inflater.finished())
    {
        int n = inflater.inflate(clear_data);
        o.write(clear_data, 0, n);
    }

    library_data.header = new byte[header_size];
    System.arraycopy(data, 0, library_data.header, 0, header_size);
    library_data.body = o.toByteArray();