1--TEST-- 2Hash: hash_hkdf() function: edge cases 3--FILE-- 4<?php 5 6echo "*** Testing hash_hkdf(): edge cases ***\n"; 7 8$ikm = 'input key material'; 9 10echo 'Length < digestSize: ', bin2hex(hash_hkdf('md5', $ikm, 7)), "\n"; 11echo 'Length % digestSize != 0: ', bin2hex(hash_hkdf('md5', $ikm, 17)), "\n"; 12echo 'Algo name case-sensitivity: ', (bin2hex(hash_hkdf('Md5', $ikm, 7)) === '98b16391063ece' ? 'true' : 'false'), "\n"; 13echo "Non-crypto algo name case-sensitivity:\n"; 14 15try { 16 var_dump(hash_hkdf('jOaAt', $ikm)); 17} 18catch (\Error $e) { 19 echo '[Error] ' . $e->getMessage() . "\n"; 20} 21 22?> 23--EXPECT-- 24*** Testing hash_hkdf(): edge cases *** 25Length < digestSize: 98b16391063ece 26Length % digestSize != 0: 98b16391063ecee006a3ca8ee5776b1e5f 27Algo name case-sensitivity: true 28Non-crypto algo name case-sensitivity: 29[Error] hash_hkdf(): Argument #1 ($algo) must be a valid cryptographic hashing algorithm 30
