Method hash

src/main/java/io/xjar/XKit.java:381–392

(File file, MessageDigest hash)

    }

    public static byte[] hash(File file, MessageDigest hash) throws IOException {
        try (
                FileInputStream fis = new FileInputStream(file)
        ) {
            byte[] buf = new byte[8 * 1024];
            int len;
            while ((len = fis.read(buf)) != -1) {
                hash.update(buf, 0, len);
            }
            return hash.digest();
        }
    }

}