chillerlan\Traits\Crypto\BoxKeypair::create()

Complexity

Conditions	5
Paths	5

Size

Total Lines	21
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
	public function create(string $seed_bin = null):CryptoKeyInterface{

		if($seed_bin !== null && strlen($seed_bin) !== SODIUM_CRYPTO_BOX_SEEDBYTES){
			throw new CryptoException('invalid seed length');
		}

		$keypair = $seed_bin
			? sodium_crypto_box_seed_keypair($seed_bin)
			: sodium_crypto_box_keypair();

		$this->keypair = $keypair;
		$this->secret  = sodium_crypto_box_secretkey($keypair);
		$this->public  = sodium_crypto_box_publickey($keypair);

		sodium_memzero($keypair);

		if($seed_bin !== null){
			sodium_memzero($seed_bin);
		}

		return $this;
	}