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File Name : XChaCha20.php

<?php

if (class_exists('ParagonIE_Sodium_Core32_XChaCha20', false)) {
    return;
}

/**
 * Class ParagonIE_Sodium_Core32_XChaCha20
 */
class ParagonIE_Sodium_Core32_XChaCha20 extends ParagonIE_Sodium_Core32_HChaCha20
{
    /**
     * @internal You should not use this directly from another application
     *
     * @param int $len
     * @param string $nonce
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function stream($len = 64, $nonce = '', $key = '')
    {
        if (self::strlen($nonce) !== 24) {
            throw new SodiumException('Nonce must be 24 bytes long');
        }
        return self::encryptBytes(
            new ParagonIE_Sodium_Core32_ChaCha20_Ctx(
                self::hChaCha20(
                    self::substr($nonce, 0, 16),
                    $key
                ),
                self::substr($nonce, 16, 8)
            ),
            str_repeat("\x00", $len)
        );
    }

/**
     * @internal You should not use this directly from another application
     *
     * @param string $message
     * @param string $nonce
     * @param string $key
     * @param string $ic
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function streamXorIc($message, $nonce = '', $key = '', $ic = '')
    {
        if (self::strlen($nonce) !== 24) {
            throw new SodiumException('Nonce must be 24 bytes long');
        }
        return self::encryptBytes(
            new ParagonIE_Sodium_Core32_ChaCha20_Ctx(
                self::hChaCha20(self::substr($nonce, 0, 16), $key),
                self::substr($nonce, 16, 8),
                $ic
            ),
            $message
        );
    }

/**
     * @internal You should not use this directly from another application
     *
     * @param string $message
     * @param string $nonce
     * @param string $key
     * @param string $ic
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function ietfStreamXorIc($message, $nonce = '', $key = '', $ic = '')
    {
        return self::encryptBytes(
            new ParagonIE_Sodium_Core32_ChaCha20_IetfCtx(
                self::hChaCha20(self::substr($nonce, 0, 16), $key),
                "\x00\x00\x00\x00" . self::substr($nonce, 16, 8),
                $ic
            ),
            $message
        );
    }
}

System Information
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File : BlackDragon /simple/function.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	happkoys/happkoys	0755	2024-10-20 04:19:52
..	dir	-	happkoys/happkoys	0755	2024-09-23 06:42:51
ChaCha20	dir	-	happkoys/happkoys	0755	2024-10-20 07:36:00
Curve25519	dir	-	happkoys/happkoys	0755	2024-10-20 07:34:53
Poly1305	dir	-	happkoys/happkoys	0755	2024-11-18 02:50:12
SecretStream	dir	-	happkoys/happkoys	0755	2024-05-07 03:52:48
BLAKE2b.php	text/x-php	21.8 KB	happkoys/happkoys	0644	2021-05-25 01:55:58
ChaCha20.php	text/x-php	14.17 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
Curve25519.php	text/x-php	129.86 KB	happkoys/happkoys	0644	2022-03-24 03:20:08
Ed25519.php	text/x-php	15.37 KB	happkoys/happkoys	0644	2022-09-14 12:13:14
HChaCha20.php	text/x-php	5.17 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
HSalsa20.php	text/x-php	6.78 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
Int32.php	text/x-php	24 KB	happkoys/happkoys	0644	2022-03-24 03:20:08
Int64.php	text/x-php	30.44 KB	happkoys/happkoys	0644	2022-03-24 03:20:08
Poly1305.php	text/x-php	1.55 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
Salsa20.php	text/x-php	11.24 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
SipHash.php	text/x-php	6.46 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
Util.php	text/x-php	209 B	happkoys/happkoys	0644	2019-03-21 04:56:52
X25519.php	text/x-php	10.78 KB	happkoys/happkoys	0644	2019-12-09 04:42:04
XChaCha20.php	text/x-php	2.4 KB	happkoys/happkoys	0644	2022-03-24 03:20:08
XSalsa20.php	text/x-php	1.35 KB	happkoys/happkoys	0644	2019-03-21 04:56:52
error_log	text/plain	39.12 KB	happkoys/happkoys	0644	2024-11-24 06:43:47