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Name	Size	Permission
constants.php	4.06 KB	-rwxr-xr-x
namespaced.php	1.31 KB	-rwxr-xr-x
php72compat.php	46.24 KB	-rwxr-xr-x
php72compat_const.php	4.49 KB	-rwxr-xr-x
php84compat.php	3.57 KB	-rwxr-xr-x
php84compat_const.php	401 B	-rwxr-xr-x
ristretto255.php	7.79 KB	-rwxr-xr-x
sodium_compat.php	26.8 KB	-rwxr-xr-x
stream-xchacha20.php	2.03 KB	-rwxr-xr-x

Code Editor : stream-xchacha20.php

<?php

if (!is_callable('sodium_crypto_stream_xchacha20')) {
    /**
     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20()
     * @param int $len
     * @param string $nonce
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    function sodium_crypto_stream_xchacha20(
        $len,
        $nonce,
        #[\SensitiveParameter]
        $key
    ) {
        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20($len, $nonce, $key, true);
    }
}
if (!is_callable('sodium_crypto_stream_xchacha20_keygen')) {
    /**
     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen()
     * @return string
     * @throws Exception
     */
    function sodium_crypto_stream_xchacha20_keygen()
    {
        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen();
    }
}
if (!is_callable('sodium_crypto_stream_xchacha20_xor')) {
    /**
     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor()
     * @param string $message
     * @param string $nonce
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    function sodium_crypto_stream_xchacha20_xor(
        #[\SensitiveParameter]
        $message,
        $nonce,
        #[\SensitiveParameter]
        $key
    ) {
        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor($message, $nonce, $key, true);
    }
}
if (!is_callable('sodium_crypto_stream_xchacha20_xor_ic')) {
    /**
     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic()
     * @param string $message
     * @param string $nonce
     * @param int $counter
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    function sodium_crypto_stream_xchacha20_xor_ic(
        #[\SensitiveParameter]
        $message,
        $nonce,
        $counter,
        #[\SensitiveParameter]
        $key
    ) {
        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key, true);
    }
}

Urban Research Lab

The Urban Research Lab (URL) at IIIT-Delhi was established in 2020, during a time when the pandemic brought the complexities of urban life more visible than ever. What started as an initiative by faculty and students has grown into a collaborative space for critically exploring and reimagining the urban questions through research, dialogue, and interdisciplinary engagement.

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Code Editor : stream-xchacha20.php

Urban Research Lab