BqTAYRPP

1$file = 'TESTXML.xml';
2$fp = fopen($file, "r");
3$string = fread($fp,filesize($file));
4$secret = 'somesecret';
5$ctx = hash_init('sha256');
6$sig = hash_hmac('sha256', $string, $secret);
7
8for ($i=0; $i < 2481 ; $i++) {
9    hash_update($ctx, $sig);
10}
11$hash = hash_final($ctx, true);
12echo base64_encode($hash);
13	
14private static String generateHash(final InputStream is, final int iteration, final String key) throws IOException, NoSuchAlgorithmException, InvalidKeyException {
15        Mac sha256_HMAC;
16        sha256_HMAC = Mac.getInstance(ALGORITHM);
17        final SecretKeySpec secret_key = new SecretKeySpec(key.getBytes(), ALGORITHM);
18        sha256_HMAC.init(secret_key);
19        byte[] bytesBuffer = new byte[2048];
20        int bytesRead = -1;
21
22        while ((bytesRead = is.read(bytesBuffer)) != -1) {
23            sha256_HMAC.update(bytesBuffer, 0, bytesRead);
24        }
25        byte[] digestValue = sha256_HMAC.doFinal();
26        for (int i = 0; i < iteration; i++) {
27            sha256_HMAC.reset();
28            digestValue = sha256_HMAC.doFinal(digestValue);
29        }
30        final String generatedHash = Base64.encodeBase64String(digestValue);
31        return generatedHash;
32    }