Notice: Use of undefined constant sha1 - assumed 'sha1' in /storage/ssd2/728/3423728/public_html/php/crypt_using_sha1-2.php.txt on line 3 Notice: Undefined index: argv in /storage/ssd2/728/3423728/public_html/php/crypt_using_sha1-2.php.txt on line 66 Notice: Undefined index: argv in /storage/ssd2/728/3423728/public_html/php/crypt_using_sha1-2.php.txt on line 66 Usage: mode password file ... Available modes: c - crypt, d - decrypt