1<?php
  2
  3if (!is_callable('sodium_crypto_stream_xchacha20')) {
  4    /**
  5     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20()
  6     * @param int $len
  7     * @param string $nonce
  8     * @param string $key
  9     * @return string
 10     * @throws SodiumException
 11     * @throws TypeError
 12     */
 13    function sodium_crypto_stream_xchacha20(
 14        $len,
 15        $nonce,
 16        #[\SensitiveParameter]
 17        $key
 18    ) {
 19        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20($len, $nonce, $key, true);
 20    }
 21}
 22if (!is_callable('sodium_crypto_stream_xchacha20_keygen')) {
 23    /**
 24     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen()
 25     * @return string
 26     * @throws Exception
 27     */
 28    function sodium_crypto_stream_xchacha20_keygen()
 29    {
 30        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen();
 31    }
 32}
 33if (!is_callable('sodium_crypto_stream_xchacha20_xor')) {
 34    /**
 35     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor()
 36     * @param string $message
 37     * @param string $nonce
 38     * @param string $key
 39     * @return string
 40     * @throws SodiumException
 41     * @throws TypeError
 42     */
 43    function sodium_crypto_stream_xchacha20_xor(
 44        #[\SensitiveParameter]
 45        $message,
 46        $nonce,
 47        #[\SensitiveParameter]
 48        $key
 49    ) {
 50        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor($message, $nonce, $key, true);
 51    }
 52}
 53if (!is_callable('sodium_crypto_stream_xchacha20_xor_ic')) {
 54    /**
 55     * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic()
 56     * @param string $message
 57     * @param string $nonce
 58     * @param int $counter
 59     * @param string $key
 60     * @return string
 61     * @throws SodiumException
 62     * @throws TypeError
 63     */
 64    function sodium_crypto_stream_xchacha20_xor_ic(
 65        #[\SensitiveParameter]
 66        $message,
 67        $nonce,
 68        $counter,
 69        #[\SensitiveParameter]
 70        $key
 71    ) {
 72        return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key, true);
 73    }
 74}
 75