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   1  <?php
   2  
   3  if (!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  }
  22  if (!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  }
  33  if (!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  }
  53  if (!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  }