<h2>File Contents: /home/planet5/public_html/4xpips.net/wp-includes/sodium_compat/src/Core32/SecretStream/State.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/public_html/4xpips.net/wp-includes/sodium_compat/src/Core32/SecretStream/State.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php

/**
 * Class ParagonIE_Sodium_Core32_SecretStream_State
 */
class ParagonIE_Sodium_Core32_SecretStream_State
{
    /** @var string $key */
    protected $key;

    /** @var int $counter */
    protected $counter;

    /** @var string $nonce */
    protected $nonce;

    /** @var string $_pad */
    protected $_pad;

    /**
     * ParagonIE_Sodium_Core32_SecretStream_State constructor.
     * @param string $key
     * @param string|null $nonce
     */
    public function __construct($key, $nonce = null)
    {
        $this-&gt;key = $key;
        $this-&gt;counter = 1;
        if (is_null($nonce)) {
            $nonce = str_repeat(&quot;\0&quot;, 12);
        }
        $this-&gt;nonce = str_pad($nonce, 12, &quot;\0&quot;, STR_PAD_RIGHT);;
        $this-&gt;_pad = str_repeat(&quot;\0&quot;, 4);
    }

    /**
     * @return self
     */
    public function counterReset()
    {
        $this-&gt;counter = 1;
        $this-&gt;_pad = str_repeat(&quot;\0&quot;, 4);
        return $this;
    }

    /**
     * @return string
     */
    public function getKey()
    {
        return $this-&gt;key;
    }

    /**
     * @return string
     */
    public function getCounter()
    {
        return ParagonIE_Sodium_Core32_Util::store32_le($this-&gt;counter);
    }

    /**
     * @return string
     */
    public function getNonce()
    {
        if (!is_string($this-&gt;nonce)) {
            $this-&gt;nonce = str_repeat(&quot;\0&quot;, 12);
        }
        if (ParagonIE_Sodium_Core32_Util::strlen($this-&gt;nonce) !== 12) {
            $this-&gt;nonce = str_pad($this-&gt;nonce, 12, &quot;\0&quot;, STR_PAD_RIGHT);
        }
        return $this-&gt;nonce;
    }

    /**
     * @return string
     */
    public function getCombinedNonce()
    {
        return $this-&gt;getCounter() .
            ParagonIE_Sodium_Core32_Util::substr($this-&gt;getNonce(), 0, 8);
    }

    /**
     * @return self
     */
    public function incrementCounter()
    {
        ++$this-&gt;counter;
        return $this;
    }

    /**
     * @return bool
     */
    public function needsRekey()
    {
        return ($this-&gt;counter &amp; 0xffff) === 0;
    }

    /**
     * @param string $newKeyAndNonce
     * @return self
     */
    public function rekey($newKeyAndNonce)
    {
        $this-&gt;key = ParagonIE_Sodium_Core32_Util::substr($newKeyAndNonce, 0, 32);
        $this-&gt;nonce = str_pad(
            ParagonIE_Sodium_Core32_Util::substr($newKeyAndNonce, 32),
            12,
            &quot;\0&quot;,
            STR_PAD_RIGHT
        );
        return $this;
    }

    /**
     * @param string $str
     * @return self
     */
    public function xorNonce($str)
    {
        $this-&gt;nonce = ParagonIE_Sodium_Core32_Util::xorStrings(
            $this-&gt;getNonce(),
            str_pad(
                ParagonIE_Sodium_Core32_Util::substr($str, 0, 8),
                12,
                &quot;\0&quot;,
                STR_PAD_RIGHT
            )
        );
        return $this;
    }

    /**
     * @param string $string
     * @return self
     */
    public static function fromString($string)
    {
        $state = new ParagonIE_Sodium_Core32_SecretStream_State(
            ParagonIE_Sodium_Core32_Util::substr($string, 0, 32)
        );
        $state-&gt;counter = ParagonIE_Sodium_Core32_Util::load_4(
            ParagonIE_Sodium_Core32_Util::substr($string, 32, 4)
        );
        $state-&gt;nonce = ParagonIE_Sodium_Core32_Util::substr($string, 36, 12);
        $state-&gt;_pad = ParagonIE_Sodium_Core32_Util::substr($string, 48, 8);
        return $state;
    }

    /**
     * @return string
     */
    public function toString()
    {
        return $this-&gt;key .
            $this-&gt;getCounter() .
            $this-&gt;nonce .
            $this-&gt;_pad;
    }
}
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