Dcrypt\OneTimePad::crypt()

Complexity

Conditions	2
Paths	2

Size

Total Lines

15

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	2

Importance

Changes

0

<?php declare(strict_types=1);
    public static function crypt(string $input, string $key, string $algo = 'sha3-512'): string
    {
        $chunks = \str_split($input, Str::hashSize($algo));

        $length = Str::strlen($input);

        $key = new OpensslKey($algo, $key, '');

        foreach ($chunks as $i => &$chunk) {
            $info = $length . $i;
            $chunk = $chunk ^ $key->deriveKey($info);
        }

        return \implode($chunks);
    }
}