jose_secret_key()

Complexity

Conditions	5
Paths	3

Size

Total Lines	16
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	5.3906

Importance

Changes

0

<?php
function jose_secret_key(string $secret, ?string $alg = null): JWK
{
    if ($alg && \preg_match('/^A(\d{3})(?:GCM)?KW$/', $alg, $matches)) {
        return derived_key($secret, (int) $matches[1]);
    }

    if ($alg && \preg_match('/^A(\d{3})(?:GCM|CBC-HS(\d{3}))$/', $alg, $matches)) {
        return derived_key($secret, (int) ($matches[2] ?? $matches[1]));
    }

    $key = new JWK([
        'k' => base64url_encode($secret),
        'kty' => 'oct',
    ]);

    return $key;
}