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<?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, $key)
 {
 return ParagonIE_Sodium_Compat::crypto_stream_xchacha20($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 $key
 * @return string
 * @throws SodiumException
 * @throws TypeError
 */
 function sodium_crypto_stream_xchacha20_xor($message, $nonce, $key)
 {
 return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor($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 $key
 * @return string
 * @throws SodiumException
 * @throws TypeError
 */
 function sodium_crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key)
 {
 return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key, true);
 }
 }
 
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