ParagonIE_Sodium_Core_BLAKE2b::init() public WP 1.0

{} Это метод класса: ParagonIE_Sodium_Core_BLAKE2b{}

Хуков нет.

Возвращает

SplFixedArray.

Использование

$result = ParagonIE_Sodium_Core_BLAKE2b::init(;

Код ParagonIE_Sodium_Core_BLAKE2b::init() ParagonIE Sodium Core BLAKE2b::init ^{WP 5.8.3}

public static function init(
    $key = null,
    $outlen = 64,
    $salt = null,
    $personal = null
) {
    self::pseudoConstructor();
    $klen = 0;

    if ($key !== null) {
        if (count($key) > 64) {
            throw new SodiumException('Invalid key size');
        }
        $klen = count($key);
    }

    if ($outlen > 64) {
        throw new SodiumException('Invalid output size');
    }

    $ctx = self::context();

    $p = new SplFixedArray(64);
    // Zero our param buffer...
    for ($i = 64; --$i;) {
        $p[$i] = 0;
    }

    $p[0] = $outlen; // digest_length
    $p[1] = $klen;   // key_length
    $p[2] = 1;       // fanout
    $p[3] = 1;       // depth

    if ($salt instanceof SplFixedArray) {
        // salt: [32] through [47]
        for ($i = 0; $i < 16; ++$i) {
            $p[32 + $i] = (int) $salt[$i];
        }
    }
    if ($personal instanceof SplFixedArray) {
        // personal: [48] through [63]
        for ($i = 0; $i < 16; ++$i) {
            $p[48 + $i] = (int) $personal[$i];
        }
    }

    $ctx[0][0] = self::xor64(
        $ctx[0][0],
        self::load64($p, 0)
    );
    if ($salt instanceof SplFixedArray || $personal instanceof SplFixedArray) {
        // We need to do what blake2b_init_param() does:
        for ($i = 1; $i < 8; ++$i) {
            $ctx[0][$i] = self::xor64(
                $ctx[0][$i],
                self::load64($p, $i << 3)
            );
        }
    }

    if ($klen > 0 && $key instanceof SplFixedArray) {
        $block = new SplFixedArray(128);
        for ($i = 128; $i--;) {
            $block[$i] = 0;
        }
        for ($i = $klen; $i--;) {
            $block[$i] = $key[$i];
        }
        self::update($ctx, $block, 128);
        $ctx[4] = 128;
    }

    return $ctx;
}