Geforce File Manager

NAME	SIZE	ACTIONS
📁 ChaCha20		[ DEL ]
📁 Curve25519		[ DEL ]
📁 Poly1305		[ DEL ]
📁 SecretStream		[ DEL ]
📄 BLAKE2b.php	22,324 B	[ EDIT ] \| [ DEL ]
📄 ChaCha20.php	14,511 B	[ EDIT ] \| [ DEL ]
📄 Curve25519.php	132,974 B	[ EDIT ] \| [ DEL ]
📄 Ed25519.php	15,735 B	[ EDIT ] \| [ DEL ]
📄 HChaCha20.php	5,297 B	[ EDIT ] \| [ DEL ]
📄 HSalsa20.php	6,941 B	[ EDIT ] \| [ DEL ]
📄 Int32.php	24,580 B	[ EDIT ] \| [ DEL ]
📄 Int64.php	31,172 B	[ EDIT ] \| [ DEL ]
📄 Poly1305.php	1,586 B	[ EDIT ] \| [ DEL ]
📄 Salsa20.php	11,506 B	[ EDIT ] \| [ DEL ]
📄 SipHash.php	6,613 B	[ EDIT ] \| [ DEL ]
📄 Util.php	209 B	[ EDIT ] \| [ DEL ]
📄 X25519.php	11,042 B	[ EDIT ] \| [ DEL ]
📄 XChaCha20.php	2,454 B	[ EDIT ] \| [ DEL ]
📄 XSalsa20.php	1,379 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: Poly1305.php

<?php

if (class_exists('ParagonIE_Sodium_Core32_Poly1305', false)) {
    return;
}

/**
 * Class ParagonIE_Sodium_Core32_Poly1305
 */
abstract class ParagonIE_Sodium_Core32_Poly1305 extends ParagonIE_Sodium_Core32_Util
{
    const BLOCK_SIZE = 16;

/**
     * @internal You should not use this directly from another application
     *
     * @param string $m
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function onetimeauth($m, $key)
    {
        if (self::strlen($key) < 32) {
            throw new InvalidArgumentException(
                'Key must be 32 bytes long.'
            );
        }
        $state = new ParagonIE_Sodium_Core32_Poly1305_State(
            self::substr($key, 0, 32)
        );
        return $state
            ->update($m)
            ->finish();
    }

/**
     * @internal You should not use this directly from another application
     *
     * @param string $mac
     * @param string $m
     * @param string $key
     * @return bool
     * @throws SodiumException
     * @throws TypeError
     */
    public static function onetimeauth_verify($mac, $m, $key)
    {
        if (self::strlen($key) < 32) {
            throw new InvalidArgumentException(
                'Key must be 32 bytes long.'
            );
        }
        $state = new ParagonIE_Sodium_Core32_Poly1305_State(
            self::substr($key, 0, 32)
        );
        $calc = $state
            ->update($m)
            ->finish();
        return self::verify_16($calc, $mac);
    }
}