WsseToken generator for curl

wssetoken.php

#!/usr/bin/env php
<?php

function wsse_header($username, $password) {
    $nonce = hash_hmac('sha512', uniqid(null, true), uniqid(), true);
    $created = new DateTime('now', new DateTimezone('UTC'));
    $created = $created->format(DateTime::ISO8601);
    $digest = sha1($nonce.$created.$password, true);

    return sprintf(
        'X-WSSE: UsernameToken Username="%s", PasswordDigest="%s", Nonce="%s", Created="%s"',
        $username,
        base64_encode($digest),
        base64_encode($nonce),
        $created
    );
}

if (3 === $argc) {
    printf("%s", wsse_header($argv[1], $argv[2]));
    exit(0);
} else {
    printf("Usage: %s [username] [password]\n", ltrim($argv[0], './'));
    exit(1);
}

/**
 * Set up:
 * -------
 * chmod +x wssetoken.php
 *
 * Usage:
 * ------
 * ./wssetoken.php guery.b@gmail.com S3cЯ3tS3cЯɘT
 *
 * Results in:
 * -----------
 * X-WSSE: UsernameToken Username="guery.b@gmail.com", PasswordDigest="qjr06a/T+oVJHxIhQvfgmF/kipM=", Nonce="vK6a/Y5tk0yQtNSOtkFTfsITPiBZUIyHIMBztkyeVdsAbSsLsAkbbBDa9WFzj1+d5aIV6YjkUVKWmJDR+GHs9A==", Created="2012-09-27T08:15:53+0000"
 *
 * Usage within curl:
 * ------------------
 * curl -v -H"$(./wssetoken.php guery.b@gmail.com S3cЯ3tS3cЯɘT)" http://example.com/api/secured/resource
 */

I wrote a fork and removed the hash_hmac, because of that binary hash, the nonces and digest generated would contain slashes '/'. The system i work with can not handle slashes...