ncryptf\Keypair

Complexity

Total Complexity

6

Size/Duplication

Total Lines	67
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	getSodiumKeypair()	0	5	1
A	getPublicKey()	0	3	1
A	getSecretKey()	0	3	1
A	__construct()	0	13	3

<?php declare(strict_types=1);

namespace ncryptf;

use InvalidArgumentException;

final class Keypair
{
    /**
     * Secret key
     *
     * @var string
     */
    private $secretKey;

    /**
     * Public Key
     *
     * @var string
     */
    private $publicKey;

    /**
     * Constructor
     *
     * @param string $secret
     * @param string $public
     */
    public function __construct(string $secretKey, string $publicKey)
    {
        if (\strlen($secretKey) % 16 !== 0) {
            throw new InvalidArgumentException(sprintf("Secret key should be a multiple of %d bytes.", 16));
        }

        $this->secretKey = $secretKey;

        if (\strlen($publicKey) % 4 !== 0) {
            throw new InvalidArgumentException(sprintf("Public key should be a multiple of %d bytes.", 4));
        }

        $this->publicKey = $publicKey;
    }

    /**
     * Returns the public key
     *
     * @return string|null
     */
    public function getPublicKey() :? string
    {
        return $this->publicKey;
    }

    /**
     * Returns the secret key
     *
     * @return string|null
     */
    public function getSecretKey() :? string
    {
        return $this->secretKey;
    }

    /**
     * Returns the sodium keypair
     *
     * @return string
     */
    public function getSodiumKeypair()
    {
        return \sodium_crypto_box_keypair_from_secretkey_and_publickey(
            $this->getSecretKey(),
            $this->getPublicKey()
        );
    }
}