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   1  <?php
   2  
   3  require_once dirname(dirname(__FILE__)) . '/autoload.php';
   4  
   5  /**
   6   * This file will monkey patch the pure-PHP implementation in place of the
   7   * PECL functions and constants, but only if they do not already exist.
   8   *
   9   * Thus, the functions or constants just proxy to the appropriate
  10   * ParagonIE_Sodium_Compat method or class constant, respectively.
  11   */
  12  foreach (array(
  13      'BASE64_VARIANT_ORIGINAL',
  14      'BASE64_VARIANT_ORIGINAL_NO_PADDING',
  15      'BASE64_VARIANT_URLSAFE',
  16      'BASE64_VARIANT_URLSAFE_NO_PADDING',
  17      'CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES',
  18      'CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES',
  19      'CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES',
  20      'CRYPTO_AEAD_CHACHA20POLY1305_ABYTES',
  21      'CRYPTO_AEAD_AES256GCM_KEYBYTES',
  22      'CRYPTO_AEAD_AES256GCM_NSECBYTES',
  23      'CRYPTO_AEAD_AES256GCM_NPUBBYTES',
  24      'CRYPTO_AEAD_AES256GCM_ABYTES',
  25      'CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES',
  26      'CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES',
  27      'CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES',
  28      'CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES',
  29      'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES',
  30      'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES',
  31      'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES',
  32      'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES',
  33      'CRYPTO_AUTH_BYTES',
  34      'CRYPTO_AUTH_KEYBYTES',
  35      'CRYPTO_BOX_SEALBYTES',
  36      'CRYPTO_BOX_SECRETKEYBYTES',
  37      'CRYPTO_BOX_PUBLICKEYBYTES',
  38      'CRYPTO_BOX_KEYPAIRBYTES',
  39      'CRYPTO_BOX_MACBYTES',
  40      'CRYPTO_BOX_NONCEBYTES',
  41      'CRYPTO_BOX_SEEDBYTES',
  42      'CRYPTO_KDF_BYTES_MIN',
  43      'CRYPTO_KDF_BYTES_MAX',
  44      'CRYPTO_KDF_CONTEXTBYTES',
  45      'CRYPTO_KDF_KEYBYTES',
  46      'CRYPTO_KX_BYTES',
  47      'CRYPTO_KX_KEYPAIRBYTES',
  48      'CRYPTO_KX_PRIMITIVE',
  49      'CRYPTO_KX_SEEDBYTES',
  50      'CRYPTO_KX_PUBLICKEYBYTES',
  51      'CRYPTO_KX_SECRETKEYBYTES',
  52      'CRYPTO_KX_SESSIONKEYBYTES',
  53      'CRYPTO_GENERICHASH_BYTES',
  54      'CRYPTO_GENERICHASH_BYTES_MIN',
  55      'CRYPTO_GENERICHASH_BYTES_MAX',
  56      'CRYPTO_GENERICHASH_KEYBYTES',
  57      'CRYPTO_GENERICHASH_KEYBYTES_MIN',
  58      'CRYPTO_GENERICHASH_KEYBYTES_MAX',
  59      'CRYPTO_PWHASH_SALTBYTES',
  60      'CRYPTO_PWHASH_STRPREFIX',
  61      'CRYPTO_PWHASH_ALG_ARGON2I13',
  62      'CRYPTO_PWHASH_ALG_ARGON2ID13',
  63      'CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE',
  64      'CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE',
  65      'CRYPTO_PWHASH_MEMLIMIT_MODERATE',
  66      'CRYPTO_PWHASH_OPSLIMIT_MODERATE',
  67      'CRYPTO_PWHASH_MEMLIMIT_SENSITIVE',
  68      'CRYPTO_PWHASH_OPSLIMIT_SENSITIVE',
  69      'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES',
  70      'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX',
  71      'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE',
  72      'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE',
  73      'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE',
  74      'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE',
  75      'CRYPTO_SCALARMULT_BYTES',
  76      'CRYPTO_SCALARMULT_SCALARBYTES',
  77      'CRYPTO_SHORTHASH_BYTES',
  78      'CRYPTO_SHORTHASH_KEYBYTES',
  79      'CRYPTO_SECRETBOX_KEYBYTES',
  80      'CRYPTO_SECRETBOX_MACBYTES',
  81      'CRYPTO_SECRETBOX_NONCEBYTES',
  82      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES',
  83      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES',
  84      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES',
  85      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH',
  86      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL',
  87      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY',
  88      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL',
  89      'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX',
  90      'CRYPTO_SIGN_BYTES',
  91      'CRYPTO_SIGN_SEEDBYTES',
  92      'CRYPTO_SIGN_PUBLICKEYBYTES',
  93      'CRYPTO_SIGN_SECRETKEYBYTES',
  94      'CRYPTO_SIGN_KEYPAIRBYTES',
  95      'CRYPTO_STREAM_KEYBYTES',
  96      'CRYPTO_STREAM_NONCEBYTES',
  97      'LIBRARY_MAJOR_VERSION',
  98      'LIBRARY_MINOR_VERSION',
  99      'LIBRARY_VERSION_MAJOR',
 100      'LIBRARY_VERSION_MINOR',
 101      'VERSION_STRING'
 102      ) as $constant
 103  ) {
 104      if (!defined("SODIUM_$constant") && defined("ParagonIE_Sodium_Compat::$constant")) {
 105          define("SODIUM_$constant", constant("ParagonIE_Sodium_Compat::$constant"));
 106      }
 107  }
 108  if (!is_callable('sodium_add')) {
 109      /**
 110       * @see ParagonIE_Sodium_Compat::add()
 111       * @param string $val
 112       * @param string $addv
 113       * @return void
 114       * @throws SodiumException
 115       */
 116      function sodium_add(&$val, $addv)
 117      {
 118          ParagonIE_Sodium_Compat::add($val, $addv);
 119      }
 120  }
 121  if (!is_callable('sodium_base642bin')) {
 122      /**
 123       * @see ParagonIE_Sodium_Compat::bin2base64()
 124       * @param string $string
 125       * @param int $variant
 126       * @param string $ignore
 127       * @return string
 128       * @throws SodiumException
 129       * @throws TypeError
 130       */
 131      function sodium_base642bin($string, $variant, $ignore ='')
 132      {
 133          return ParagonIE_Sodium_Compat::base642bin($string, $variant, $ignore);
 134      }
 135  }
 136  if (!is_callable('sodium_bin2base64')) {
 137      /**
 138       * @see ParagonIE_Sodium_Compat::bin2base64()
 139       * @param string $string
 140       * @param int $variant
 141       * @return string
 142       * @throws SodiumException
 143       * @throws TypeError
 144       */
 145      function sodium_bin2base64($string, $variant)
 146      {
 147          return ParagonIE_Sodium_Compat::bin2base64($string, $variant);
 148      }
 149  }
 150  if (!is_callable('sodium_bin2hex')) {
 151      /**
 152       * @see ParagonIE_Sodium_Compat::hex2bin()
 153       * @param string $string
 154       * @return string
 155       * @throws SodiumException
 156       * @throws TypeError
 157       */
 158      function sodium_bin2hex($string)
 159      {
 160          return ParagonIE_Sodium_Compat::bin2hex($string);
 161      }
 162  }
 163  if (!is_callable('sodium_compare')) {
 164      /**
 165       * @see ParagonIE_Sodium_Compat::compare()
 166       * @param string $a
 167       * @param string $b
 168       * @return int
 169       * @throws SodiumException
 170       * @throws TypeError
 171       */
 172      function sodium_compare($a, $b)
 173      {
 174          return ParagonIE_Sodium_Compat::compare($a, $b);
 175      }
 176  }
 177  if (!is_callable('sodium_crypto_aead_aes256gcm_decrypt')) {
 178      /**
 179       * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt()
 180       * @param string $message
 181       * @param string $assocData
 182       * @param string $nonce
 183       * @param string $key
 184       * @return string|bool
 185       */
 186      function sodium_crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key)
 187      {
 188          try {
 189              return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key);
 190          } catch (Error $ex) {
 191              return false;
 192          } catch (Exception $ex) {
 193              return false;
 194          }
 195      }
 196  }
 197  if (!is_callable('sodium_crypto_aead_aes256gcm_encrypt')) {
 198      /**
 199       * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt()
 200       * @param string $message
 201       * @param string $assocData
 202       * @param string $nonce
 203       * @param string $key
 204       * @return string
 205       * @throws SodiumException
 206       * @throws TypeError
 207       */
 208      function sodium_crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key)
 209      {
 210          return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key);
 211      }
 212  }
 213  if (!is_callable('sodium_crypto_aead_aes256gcm_is_available')) {
 214      /**
 215       * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available()
 216       * @return bool
 217       */
 218      function sodium_crypto_aead_aes256gcm_is_available()
 219      {
 220          return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available();
 221      }
 222  }
 223  if (!is_callable('sodium_crypto_aead_chacha20poly1305_decrypt')) {
 224      /**
 225       * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt()
 226       * @param string $message
 227       * @param string $assocData
 228       * @param string $nonce
 229       * @param string $key
 230       * @return string|bool
 231       */
 232      function sodium_crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key)
 233      {
 234          try {
 235              return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key);
 236          } catch (Error $ex) {
 237              return false;
 238          } catch (Exception $ex) {
 239              return false;
 240          }
 241      }
 242  }
 243  if (!is_callable('sodium_crypto_aead_chacha20poly1305_encrypt')) {
 244      /**
 245       * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt()
 246       * @param string $message
 247       * @param string $assocData
 248       * @param string $nonce
 249       * @param string $key
 250       * @return string
 251       * @throws SodiumException
 252       * @throws TypeError
 253       */
 254      function sodium_crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key)
 255      {
 256          return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key);
 257      }
 258  }
 259  if (!is_callable('sodium_crypto_aead_chacha20poly1305_keygen')) {
 260      /**
 261       * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_keygen()
 262       * @return string
 263       * @throws Exception
 264       */
 265      function sodium_crypto_aead_chacha20poly1305_keygen()
 266      {
 267          return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_keygen();
 268      }
 269  }
 270  if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_decrypt')) {
 271      /**
 272       * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt()
 273       * @param string $message
 274       * @param string $assocData
 275       * @param string $nonce
 276       * @param string $key
 277       * @return string|bool
 278       */
 279      function sodium_crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key)
 280      {
 281          try {
 282              return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key);
 283          } catch (Error $ex) {
 284              return false;
 285          } catch (Exception $ex) {
 286              return false;
 287          }
 288      }
 289  }
 290  if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_encrypt')) {
 291      /**
 292       * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt()
 293       * @param string $message
 294       * @param string $assocData
 295       * @param string $nonce
 296       * @param string $key
 297       * @return string
 298       * @throws SodiumException
 299       * @throws TypeError
 300       */
 301      function sodium_crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key)
 302      {
 303          return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key);
 304      }
 305  }
 306  if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_keygen')) {
 307      /**
 308       * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_keygen()
 309       * @return string
 310       * @throws Exception
 311       */
 312      function sodium_crypto_aead_chacha20poly1305_ietf_keygen()
 313      {
 314          return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_keygen();
 315      }
 316  }
 317  if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_decrypt')) {
 318      /**
 319       * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt()
 320       * @param string $message
 321       * @param string $assocData
 322       * @param string $nonce
 323       * @param string $key
 324       * @return string|bool
 325       */
 326      function sodium_crypto_aead_xchacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key)
 327      {
 328          try {
 329              return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key, true);
 330          } catch (Error $ex) {
 331              return false;
 332          } catch (Exception $ex) {
 333              return false;
 334          }
 335      }
 336  }
 337  if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_encrypt')) {
 338      /**
 339       * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt()
 340       * @param string $message
 341       * @param string $assocData
 342       * @param string $nonce
 343       * @param string $key
 344       * @return string
 345       * @throws SodiumException
 346       * @throws TypeError
 347       */
 348      function sodium_crypto_aead_xchacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key)
 349      {
 350          return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key, true);
 351      }
 352  }
 353  if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_keygen')) {
 354      /**
 355       * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_keygen()
 356       * @return string
 357       * @throws Exception
 358       */
 359      function sodium_crypto_aead_xchacha20poly1305_ietf_keygen()
 360      {
 361          return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_keygen();
 362      }
 363  }
 364  if (!is_callable('sodium_crypto_auth')) {
 365      /**
 366       * @see ParagonIE_Sodium_Compat::crypto_auth()
 367       * @param string $message
 368       * @param string $key
 369       * @return string
 370       * @throws SodiumException
 371       * @throws TypeError
 372       */
 373      function sodium_crypto_auth($message, $key)
 374      {
 375          return ParagonIE_Sodium_Compat::crypto_auth($message, $key);
 376      }
 377  }
 378  if (!is_callable('sodium_crypto_auth_keygen')) {
 379      /**
 380       * @see ParagonIE_Sodium_Compat::crypto_auth_keygen()
 381       * @return string
 382       * @throws Exception
 383       */
 384      function sodium_crypto_auth_keygen()
 385      {
 386          return ParagonIE_Sodium_Compat::crypto_auth_keygen();
 387      }
 388  }
 389  if (!is_callable('sodium_crypto_auth_verify')) {
 390      /**
 391       * @see ParagonIE_Sodium_Compat::crypto_auth_verify()
 392       * @param string $mac
 393       * @param string $message
 394       * @param string $key
 395       * @return bool
 396       * @throws SodiumException
 397       * @throws TypeError
 398       */
 399      function sodium_crypto_auth_verify($mac, $message, $key)
 400      {
 401          return ParagonIE_Sodium_Compat::crypto_auth_verify($mac, $message, $key);
 402      }
 403  }
 404  if (!is_callable('sodium_crypto_box')) {
 405      /**
 406       * @see ParagonIE_Sodium_Compat::crypto_box()
 407       * @param string $message
 408       * @param string $nonce
 409       * @param string $kp
 410       * @return string
 411       * @throws SodiumException
 412       * @throws TypeError
 413       */
 414      function sodium_crypto_box($message, $nonce, $kp)
 415      {
 416          return ParagonIE_Sodium_Compat::crypto_box($message, $nonce, $kp);
 417      }
 418  }
 419  if (!is_callable('sodium_crypto_box_keypair')) {
 420      /**
 421       * @see ParagonIE_Sodium_Compat::crypto_box_keypair()
 422       * @return string
 423       * @throws SodiumException
 424       * @throws TypeError
 425       */
 426      function sodium_crypto_box_keypair()
 427      {
 428          return ParagonIE_Sodium_Compat::crypto_box_keypair();
 429      }
 430  }
 431  if (!is_callable('sodium_crypto_box_keypair_from_secretkey_and_publickey')) {
 432      /**
 433       * @see ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey()
 434       * @param string $sk
 435       * @param string $pk
 436       * @return string
 437       * @throws SodiumException
 438       * @throws TypeError
 439       */
 440      function sodium_crypto_box_keypair_from_secretkey_and_publickey($sk, $pk)
 441      {
 442          return ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey($sk, $pk);
 443      }
 444  }
 445  if (!is_callable('sodium_crypto_box_open')) {
 446      /**
 447       * @see ParagonIE_Sodium_Compat::crypto_box_open()
 448       * @param string $message
 449       * @param string $nonce
 450       * @param string $kp
 451       * @return string|bool
 452       */
 453      function sodium_crypto_box_open($message, $nonce, $kp)
 454      {
 455          try {
 456              return ParagonIE_Sodium_Compat::crypto_box_open($message, $nonce, $kp);
 457          } catch (Error $ex) {
 458              return false;
 459          } catch (Exception $ex) {
 460              return false;
 461          }
 462      }
 463  }
 464  if (!is_callable('sodium_crypto_box_publickey')) {
 465      /**
 466       * @see ParagonIE_Sodium_Compat::crypto_box_publickey()
 467       * @param string $keypair
 468       * @return string
 469       * @throws SodiumException
 470       * @throws TypeError
 471       */
 472      function sodium_crypto_box_publickey($keypair)
 473      {
 474          return ParagonIE_Sodium_Compat::crypto_box_publickey($keypair);
 475      }
 476  }
 477  if (!is_callable('sodium_crypto_box_publickey_from_secretkey')) {
 478      /**
 479       * @see ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey()
 480       * @param string $sk
 481       * @return string
 482       * @throws SodiumException
 483       * @throws TypeError
 484       */
 485      function sodium_crypto_box_publickey_from_secretkey($sk)
 486      {
 487          return ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey($sk);
 488      }
 489  }
 490  if (!is_callable('sodium_crypto_box_seal')) {
 491      /**
 492       * @see ParagonIE_Sodium_Compat::crypto_box_seal()
 493       * @param string $message
 494       * @param string $publicKey
 495       * @return string
 496       * @throws SodiumException
 497       * @throws TypeError
 498       */
 499      function sodium_crypto_box_seal($message, $publicKey)
 500      {
 501          return ParagonIE_Sodium_Compat::crypto_box_seal($message, $publicKey);
 502      }
 503  }
 504  if (!is_callable('sodium_crypto_box_seal_open')) {
 505      /**
 506       * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
 507       * @param string $message
 508       * @param string $kp
 509       * @return string|bool
 510       * @throws SodiumException
 511       */
 512      function sodium_crypto_box_seal_open($message, $kp)
 513      {
 514          try {
 515              return ParagonIE_Sodium_Compat::crypto_box_seal_open($message, $kp);
 516          } catch (SodiumException $ex) {
 517              if ($ex->getMessage() === 'Argument 2 must be CRYPTO_BOX_KEYPAIRBYTES long.') {
 518                  throw $ex;
 519              }
 520              return false;
 521          }
 522      }
 523  }
 524  if (!is_callable('sodium_crypto_box_secretkey')) {
 525      /**
 526       * @see ParagonIE_Sodium_Compat::crypto_box_secretkey()
 527       * @param string $keypair
 528       * @return string
 529       * @throws SodiumException
 530       * @throws TypeError
 531       */
 532      function sodium_crypto_box_secretkey($keypair)
 533      {
 534          return ParagonIE_Sodium_Compat::crypto_box_secretkey($keypair);
 535      }
 536  }
 537  if (!is_callable('sodium_crypto_box_seed_keypair')) {
 538      /**
 539       * @see ParagonIE_Sodium_Compat::crypto_box_seed_keypair()
 540       * @param string $seed
 541       * @return string
 542       * @throws SodiumException
 543       * @throws TypeError
 544       */
 545      function sodium_crypto_box_seed_keypair($seed)
 546      {
 547          return ParagonIE_Sodium_Compat::crypto_box_seed_keypair($seed);
 548      }
 549  }
 550  if (!is_callable('sodium_crypto_generichash')) {
 551      /**
 552       * @see ParagonIE_Sodium_Compat::crypto_generichash()
 553       * @param string $message
 554       * @param string|null $key
 555       * @param int $outLen
 556       * @return string
 557       * @throws SodiumException
 558       * @throws TypeError
 559       */
 560      function sodium_crypto_generichash($message, $key = null, $outLen = 32)
 561      {
 562          return ParagonIE_Sodium_Compat::crypto_generichash($message, $key, $outLen);
 563      }
 564  }
 565  if (!is_callable('sodium_crypto_generichash_final')) {
 566      /**
 567       * @see ParagonIE_Sodium_Compat::crypto_generichash_final()
 568       * @param string|null $ctx
 569       * @param int $outputLength
 570       * @return string
 571       * @throws SodiumException
 572       * @throws TypeError
 573       */
 574      function sodium_crypto_generichash_final(&$ctx, $outputLength = 32)
 575      {
 576          return ParagonIE_Sodium_Compat::crypto_generichash_final($ctx, $outputLength);
 577      }
 578  }
 579  if (!is_callable('sodium_crypto_generichash_init')) {
 580      /**
 581       * @see ParagonIE_Sodium_Compat::crypto_generichash_init()
 582       * @param string|null $key
 583       * @param int $outLen
 584       * @return string
 585       * @throws SodiumException
 586       * @throws TypeError
 587       */
 588      function sodium_crypto_generichash_init($key = null, $outLen = 32)
 589      {
 590          return ParagonIE_Sodium_Compat::crypto_generichash_init($key, $outLen);
 591      }
 592  }
 593  if (!is_callable('sodium_crypto_generichash_keygen')) {
 594      /**
 595       * @see ParagonIE_Sodium_Compat::crypto_generichash_keygen()
 596       * @return string
 597       * @throws Exception
 598       */
 599      function sodium_crypto_generichash_keygen()
 600      {
 601          return ParagonIE_Sodium_Compat::crypto_generichash_keygen();
 602      }
 603  }
 604  if (!is_callable('sodium_crypto_generichash_update')) {
 605      /**
 606       * @see ParagonIE_Sodium_Compat::crypto_generichash_update()
 607       * @param string|null $ctx
 608       * @param string $message
 609       * @return void
 610       * @throws SodiumException
 611       * @throws TypeError
 612       */
 613      function sodium_crypto_generichash_update(&$ctx, $message = '')
 614      {
 615          ParagonIE_Sodium_Compat::crypto_generichash_update($ctx, $message);
 616      }
 617  }
 618  if (!is_callable('sodium_crypto_kdf_keygen')) {
 619      /**
 620       * @see ParagonIE_Sodium_Compat::crypto_kdf_keygen()
 621       * @return string
 622       * @throws Exception
 623       */
 624      function sodium_crypto_kdf_keygen()
 625      {
 626          return ParagonIE_Sodium_Compat::crypto_kdf_keygen();
 627      }
 628  }
 629  if (!is_callable('sodium_crypto_kdf_derive_from_key')) {
 630      /**
 631       * @see ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key()
 632       * @param int $subkey_len
 633       * @param int $subkey_id
 634       * @param string $context
 635       * @param string $key
 636       * @return string
 637       * @throws Exception
 638       */
 639      function sodium_crypto_kdf_derive_from_key($subkey_len, $subkey_id, $context, $key)
 640      {
 641          return ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key(
 642              $subkey_len,
 643              $subkey_id,
 644              $context,
 645              $key
 646          );
 647      }
 648  }
 649  if (!is_callable('sodium_crypto_kx')) {
 650      /**
 651       * @see ParagonIE_Sodium_Compat::crypto_kx()
 652       * @param string $my_secret
 653       * @param string $their_public
 654       * @param string $client_public
 655       * @param string $server_public
 656       * @return string
 657       * @throws SodiumException
 658       * @throws TypeError
 659       */
 660      function sodium_crypto_kx($my_secret, $their_public, $client_public, $server_public)
 661      {
 662          return ParagonIE_Sodium_Compat::crypto_kx(
 663              $my_secret,
 664              $their_public,
 665              $client_public,
 666              $server_public
 667          );
 668      }
 669  }
 670  if (!is_callable('sodium_crypto_kx_seed_keypair')) {
 671      /**
 672       * @param string $seed
 673       * @return string
 674       * @throws Exception
 675       */
 676      function sodium_crypto_kx_seed_keypair($seed)
 677      {
 678          return ParagonIE_Sodium_Compat::crypto_kx_seed_keypair($seed);
 679      }
 680  }
 681  if (!is_callable('sodium_crypto_kx_keypair')) {
 682      /**
 683       * @return string
 684       * @throws Exception
 685       */
 686      function sodium_crypto_kx_keypair()
 687      {
 688          return ParagonIE_Sodium_Compat::crypto_kx_keypair();
 689      }
 690  }
 691  if (!is_callable('sodium_crypto_kx_client_session_keys')) {
 692      /**
 693       * @param string $keypair
 694       * @param string $serverPublicKey
 695       * @return array{0: string, 1: string}
 696       * @throws SodiumException
 697       */
 698      function sodium_crypto_kx_client_session_keys($keypair, $serverPublicKey)
 699      {
 700          return ParagonIE_Sodium_Compat::crypto_kx_client_session_keys($keypair, $serverPublicKey);
 701      }
 702  }
 703  if (!is_callable('sodium_crypto_kx_server_session_keys')) {
 704      /**
 705       * @param string $keypair
 706       * @param string $clientPublicKey
 707       * @return array{0: string, 1: string}
 708       * @throws SodiumException
 709       */
 710      function sodium_crypto_kx_server_session_keys($keypair, $clientPublicKey)
 711      {
 712          return ParagonIE_Sodium_Compat::crypto_kx_server_session_keys($keypair, $clientPublicKey);
 713      }
 714  }
 715  if (!is_callable('sodium_crypto_kx_secretkey')) {
 716      /**
 717       * @param string $keypair
 718       * @return string
 719       * @throws Exception
 720       */
 721      function sodium_crypto_kx_secretkey($keypair)
 722      {
 723          return ParagonIE_Sodium_Compat::crypto_kx_secretkey($keypair);
 724      }
 725  }
 726  if (!is_callable('sodium_crypto_kx_publickey')) {
 727      /**
 728       * @param string $keypair
 729       * @return string
 730       * @throws Exception
 731       */
 732      function sodium_crypto_kx_publickey($keypair)
 733      {
 734          return ParagonIE_Sodium_Compat::crypto_kx_publickey($keypair);
 735      }
 736  }
 737  if (!is_callable('sodium_crypto_pwhash')) {
 738      /**
 739       * @see ParagonIE_Sodium_Compat::crypto_pwhash()
 740       * @param int $outlen
 741       * @param string $passwd
 742       * @param string $salt
 743       * @param int $opslimit
 744       * @param int $memlimit
 745       * @param int|null $algo
 746       * @return string
 747       * @throws SodiumException
 748       * @throws TypeError
 749       */
 750      function sodium_crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $algo = null)
 751      {
 752          return ParagonIE_Sodium_Compat::crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $algo);
 753      }
 754  }
 755  if (!is_callable('sodium_crypto_pwhash_str')) {
 756      /**
 757       * @see ParagonIE_Sodium_Compat::crypto_pwhash_str()
 758       * @param string $passwd
 759       * @param int $opslimit
 760       * @param int $memlimit
 761       * @return string
 762       * @throws SodiumException
 763       * @throws TypeError
 764       */
 765      function sodium_crypto_pwhash_str($passwd, $opslimit, $memlimit)
 766      {
 767          return ParagonIE_Sodium_Compat::crypto_pwhash_str($passwd, $opslimit, $memlimit);
 768      }
 769  }
 770  if (!is_callable('sodium_crypto_pwhash_str_needs_rehash')) {
 771      /**
 772       * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_needs_rehash()
 773       * @param string $hash
 774       * @param int $opslimit
 775       * @param int $memlimit
 776       * @return bool
 777       *
 778       * @throws SodiumException
 779       */
 780      function sodium_crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit)
 781      {
 782          return ParagonIE_Sodium_Compat::crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit);
 783      }
 784  }
 785  if (!is_callable('sodium_crypto_pwhash_str_verify')) {
 786      /**
 787       * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_verify()
 788       * @param string $passwd
 789       * @param string $hash
 790       * @return bool
 791       * @throws SodiumException
 792       * @throws TypeError
 793       */
 794      function sodium_crypto_pwhash_str_verify($passwd, $hash)
 795      {
 796          return ParagonIE_Sodium_Compat::crypto_pwhash_str_verify($passwd, $hash);
 797      }
 798  }
 799  if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256')) {
 800      /**
 801       * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256()
 802       * @param int $outlen
 803       * @param string $passwd
 804       * @param string $salt
 805       * @param int $opslimit
 806       * @param int $memlimit
 807       * @return string
 808       * @throws SodiumException
 809       * @throws TypeError
 810       */
 811      function sodium_crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit)
 812      {
 813          return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit);
 814      }
 815  }
 816  if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256_str')) {
 817      /**
 818       * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str()
 819       * @param string $passwd
 820       * @param int $opslimit
 821       * @param int $memlimit
 822       * @return string
 823       * @throws SodiumException
 824       * @throws TypeError
 825       */
 826      function sodium_crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
 827      {
 828          return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit);
 829      }
 830  }
 831  if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256_str_verify')) {
 832      /**
 833       * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify()
 834       * @param string $passwd
 835       * @param string $hash
 836       * @return bool
 837       * @throws SodiumException
 838       * @throws TypeError
 839       */
 840      function sodium_crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
 841      {
 842          return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash);
 843      }
 844  }
 845  if (!is_callable('sodium_crypto_scalarmult')) {
 846      /**
 847       * @see ParagonIE_Sodium_Compat::crypto_scalarmult()
 848       * @param string $n
 849       * @param string $p
 850       * @return string
 851       * @throws SodiumException
 852       * @throws TypeError
 853       */
 854      function sodium_crypto_scalarmult($n, $p)
 855      {
 856          return ParagonIE_Sodium_Compat::crypto_scalarmult($n, $p);
 857      }
 858  }
 859  if (!is_callable('sodium_crypto_scalarmult_base')) {
 860      /**
 861       * @see ParagonIE_Sodium_Compat::crypto_scalarmult_base()
 862       * @param string $n
 863       * @return string
 864       * @throws SodiumException
 865       * @throws TypeError
 866       */
 867      function sodium_crypto_scalarmult_base($n)
 868      {
 869          return ParagonIE_Sodium_Compat::crypto_scalarmult_base($n);
 870      }
 871  }
 872  if (!is_callable('sodium_crypto_secretbox')) {
 873      /**
 874       * @see ParagonIE_Sodium_Compat::crypto_secretbox()
 875       * @param string $message
 876       * @param string $nonce
 877       * @param string $key
 878       * @return string
 879       * @throws SodiumException
 880       * @throws TypeError
 881       */
 882      function sodium_crypto_secretbox($message, $nonce, $key)
 883      {
 884          return ParagonIE_Sodium_Compat::crypto_secretbox($message, $nonce, $key);
 885      }
 886  }
 887  if (!is_callable('sodium_crypto_secretbox_keygen')) {
 888      /**
 889       * @see ParagonIE_Sodium_Compat::crypto_secretbox_keygen()
 890       * @return string
 891       * @throws Exception
 892       */
 893      function sodium_crypto_secretbox_keygen()
 894      {
 895          return ParagonIE_Sodium_Compat::crypto_secretbox_keygen();
 896      }
 897  }
 898  if (!is_callable('sodium_crypto_secretbox_open')) {
 899      /**
 900       * @see ParagonIE_Sodium_Compat::crypto_secretbox_open()
 901       * @param string $message
 902       * @param string $nonce
 903       * @param string $key
 904       * @return string|bool
 905       */
 906      function sodium_crypto_secretbox_open($message, $nonce, $key)
 907      {
 908          try {
 909              return ParagonIE_Sodium_Compat::crypto_secretbox_open($message, $nonce, $key);
 910          } catch (Error $ex) {
 911              return false;
 912          } catch (Exception $ex) {
 913              return false;
 914          }
 915      }
 916  }
 917  if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_init_push')) {
 918      /**
 919       * @param string $key
 920       * @return array<int, string>
 921       * @throws SodiumException
 922       */
 923      function sodium_crypto_secretstream_xchacha20poly1305_init_push($key)
 924      {
 925          return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_init_push($key);
 926      }
 927  }
 928  if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_push')) {
 929      /**
 930       * @param string $state
 931       * @param string $msg
 932       * @param string $aad
 933       * @param int $tag
 934       * @return string
 935       * @throws SodiumException
 936       */
 937      function sodium_crypto_secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0)
 938      {
 939          return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_push($state, $msg, $aad, $tag);
 940      }
 941  }
 942  if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_init_pull')) {
 943      /**
 944       * @param string $header
 945       * @param string $key
 946       * @return string
 947       * @throws Exception
 948       */
 949      function sodium_crypto_secretstream_xchacha20poly1305_init_pull($header, $key)
 950      {
 951          return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_init_pull($header, $key);
 952      }
 953  }
 954  if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_pull')) {
 955      /**
 956       * @param string $state
 957       * @param string $cipher
 958       * @param string $aad
 959       * @return bool|array{0: string, 1: int}
 960       * @throws SodiumException
 961       */
 962      function sodium_crypto_secretstream_xchacha20poly1305_pull(&$state, $cipher, $aad = '')
 963      {
 964          return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_pull($state, $cipher, $aad);
 965      }
 966  }
 967  if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_rekey')) {
 968      /**
 969       * @param string $state
 970       * @return void
 971       * @throws SodiumException
 972       */
 973      function sodium_crypto_secretstream_xchacha20poly1305_rekey(&$state)
 974      {
 975          ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_rekey($state);
 976      }
 977  }
 978  if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_keygen')) {
 979      /**
 980       * @return string
 981       * @throws Exception
 982       */
 983      function sodium_crypto_secretstream_xchacha20poly1305_keygen()
 984      {
 985          return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_keygen();
 986      }
 987  }
 988  if (!is_callable('sodium_crypto_shorthash')) {
 989      /**
 990       * @see ParagonIE_Sodium_Compat::crypto_shorthash()
 991       * @param string $message
 992       * @param string $key
 993       * @return string
 994       * @throws SodiumException
 995       * @throws TypeError
 996       */
 997      function sodium_crypto_shorthash($message, $key = '')
 998      {
 999          return ParagonIE_Sodium_Compat::crypto_shorthash($message, $key);
1000      }
1001  }
1002  if (!is_callable('sodium_crypto_shorthash_keygen')) {
1003      /**
1004       * @see ParagonIE_Sodium_Compat::crypto_shorthash_keygen()
1005       * @return string
1006       * @throws Exception
1007       */
1008      function sodium_crypto_shorthash_keygen()
1009      {
1010          return ParagonIE_Sodium_Compat::crypto_shorthash_keygen();
1011      }
1012  }
1013  if (!is_callable('sodium_crypto_sign')) {
1014      /**
1015       * @see ParagonIE_Sodium_Compat::crypto_sign()
1016       * @param string $message
1017       * @param string $sk
1018       * @return string
1019       * @throws SodiumException
1020       * @throws TypeError
1021       */
1022      function sodium_crypto_sign($message, $sk)
1023      {
1024          return ParagonIE_Sodium_Compat::crypto_sign($message, $sk);
1025      }
1026  }
1027  if (!is_callable('sodium_crypto_sign_detached')) {
1028      /**
1029       * @see ParagonIE_Sodium_Compat::crypto_sign_detached()
1030       * @param string $message
1031       * @param string $sk
1032       * @return string
1033       * @throws SodiumException
1034       * @throws TypeError
1035       */
1036      function sodium_crypto_sign_detached($message, $sk)
1037      {
1038          return ParagonIE_Sodium_Compat::crypto_sign_detached($message, $sk);
1039      }
1040  }
1041  if (!is_callable('sodium_crypto_sign_keypair_from_secretkey_and_publickey')) {
1042      /**
1043       * @see ParagonIE_Sodium_Compat::crypto_sign_keypair_from_secretkey_and_publickey()
1044       * @param string $sk
1045       * @param string $pk
1046       * @return string
1047       * @throws SodiumException
1048       * @throws TypeError
1049       */
1050      function sodium_crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk)
1051      {
1052          return ParagonIE_Sodium_Compat::crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk);
1053      }
1054  }
1055  if (!is_callable('sodium_crypto_sign_keypair')) {
1056      /**
1057       * @see ParagonIE_Sodium_Compat::crypto_sign_keypair()
1058       * @return string
1059       * @throws SodiumException
1060       * @throws TypeError
1061       */
1062      function sodium_crypto_sign_keypair()
1063      {
1064          return ParagonIE_Sodium_Compat::crypto_sign_keypair();
1065      }
1066  }
1067  if (!is_callable('sodium_crypto_sign_open')) {
1068      /**
1069       * @see ParagonIE_Sodium_Compat::crypto_sign_open()
1070       * @param string $signedMessage
1071       * @param string $pk
1072       * @return string|bool
1073       */
1074      function sodium_crypto_sign_open($signedMessage, $pk)
1075      {
1076          try {
1077              return ParagonIE_Sodium_Compat::crypto_sign_open($signedMessage, $pk);
1078          } catch (Error $ex) {
1079              return false;
1080          } catch (Exception $ex) {
1081              return false;
1082          }
1083      }
1084  }
1085  if (!is_callable('sodium_crypto_sign_publickey')) {
1086      /**
1087       * @see ParagonIE_Sodium_Compat::crypto_sign_publickey()
1088       * @param string $keypair
1089       * @return string
1090       * @throws SodiumException
1091       * @throws TypeError
1092       */
1093      function sodium_crypto_sign_publickey($keypair)
1094      {
1095          return ParagonIE_Sodium_Compat::crypto_sign_publickey($keypair);
1096      }
1097  }
1098  if (!is_callable('sodium_crypto_sign_publickey_from_secretkey')) {
1099      /**
1100       * @see ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey()
1101       * @param string $sk
1102       * @return string
1103       * @throws SodiumException
1104       * @throws TypeError
1105       */
1106      function sodium_crypto_sign_publickey_from_secretkey($sk)
1107      {
1108          return ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey($sk);
1109      }
1110  }
1111  if (!is_callable('sodium_crypto_sign_secretkey')) {
1112      /**
1113       * @see ParagonIE_Sodium_Compat::crypto_sign_secretkey()
1114       * @param string $keypair
1115       * @return string
1116       * @throws SodiumException
1117       * @throws TypeError
1118       */
1119      function sodium_crypto_sign_secretkey($keypair)
1120      {
1121          return ParagonIE_Sodium_Compat::crypto_sign_secretkey($keypair);
1122      }
1123  }
1124  if (!is_callable('sodium_crypto_sign_seed_keypair')) {
1125      /**
1126       * @see ParagonIE_Sodium_Compat::crypto_sign_seed_keypair()
1127       * @param string $seed
1128       * @return string
1129       * @throws SodiumException
1130       * @throws TypeError
1131       */
1132      function sodium_crypto_sign_seed_keypair($seed)
1133      {
1134          return ParagonIE_Sodium_Compat::crypto_sign_seed_keypair($seed);
1135      }
1136  }
1137  if (!is_callable('sodium_crypto_sign_verify_detached')) {
1138      /**
1139       * @see ParagonIE_Sodium_Compat::crypto_sign_verify_detached()
1140       * @param string $signature
1141       * @param string $message
1142       * @param string $pk
1143       * @return bool
1144       * @throws SodiumException
1145       * @throws TypeError
1146       */
1147      function sodium_crypto_sign_verify_detached($signature, $message, $pk)
1148      {
1149          return ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $pk);
1150      }
1151  }
1152  if (!is_callable('sodium_crypto_sign_ed25519_pk_to_curve25519')) {
1153      /**
1154       * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519()
1155       * @param string $pk
1156       * @return string
1157       * @throws SodiumException
1158       * @throws TypeError
1159       */
1160      function sodium_crypto_sign_ed25519_pk_to_curve25519($pk)
1161      {
1162          return ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519($pk);
1163      }
1164  }
1165  if (!is_callable('sodium_crypto_sign_ed25519_sk_to_curve25519')) {
1166      /**
1167       * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519()
1168       * @param string $sk
1169       * @return string
1170       * @throws SodiumException
1171       * @throws TypeError
1172       */
1173      function sodium_crypto_sign_ed25519_sk_to_curve25519($sk)
1174      {
1175          return ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519($sk);
1176      }
1177  }
1178  if (!is_callable('sodium_crypto_stream')) {
1179      /**
1180       * @see ParagonIE_Sodium_Compat::crypto_stream()
1181       * @param int $len
1182       * @param string $nonce
1183       * @param string $key
1184       * @return string
1185       * @throws SodiumException
1186       * @throws TypeError
1187       */
1188      function sodium_crypto_stream($len, $nonce, $key)
1189      {
1190          return ParagonIE_Sodium_Compat::crypto_stream($len, $nonce, $key);
1191      }
1192  }
1193  if (!is_callable('sodium_crypto_stream_keygen')) {
1194      /**
1195       * @see ParagonIE_Sodium_Compat::crypto_stream_keygen()
1196       * @return string
1197       * @throws Exception
1198       */
1199      function sodium_crypto_stream_keygen()
1200      {
1201          return ParagonIE_Sodium_Compat::crypto_stream_keygen();
1202      }
1203  }
1204  if (!is_callable('sodium_crypto_stream_xor')) {
1205      /**
1206       * @see ParagonIE_Sodium_Compat::crypto_stream_xor()
1207       * @param string $message
1208       * @param string $nonce
1209       * @param string $key
1210       * @return string
1211       * @throws SodiumException
1212       * @throws TypeError
1213       */
1214      function sodium_crypto_stream_xor($message, $nonce, $key)
1215      {
1216          return ParagonIE_Sodium_Compat::crypto_stream_xor($message, $nonce, $key);
1217      }
1218  }
1219  if (!is_callable('sodium_hex2bin')) {
1220      /**
1221       * @see ParagonIE_Sodium_Compat::hex2bin()
1222       * @param string $string
1223       * @return string
1224       * @throws SodiumException
1225       * @throws TypeError
1226       */
1227      function sodium_hex2bin($string)
1228      {
1229          return ParagonIE_Sodium_Compat::hex2bin($string);
1230      }
1231  }
1232  if (!is_callable('sodium_increment')) {
1233      /**
1234       * @see ParagonIE_Sodium_Compat::increment()
1235       * @param string $string
1236       * @return void
1237       * @throws SodiumException
1238       * @throws TypeError
1239       */
1240      function sodium_increment(&$string)
1241      {
1242          ParagonIE_Sodium_Compat::increment($string);
1243      }
1244  }
1245  if (!is_callable('sodium_library_version_major')) {
1246      /**
1247       * @see ParagonIE_Sodium_Compat::library_version_major()
1248       * @return int
1249       */
1250      function sodium_library_version_major()
1251      {
1252          return ParagonIE_Sodium_Compat::library_version_major();
1253      }
1254  }
1255  if (!is_callable('sodium_library_version_minor')) {
1256      /**
1257       * @see ParagonIE_Sodium_Compat::library_version_minor()
1258       * @return int
1259       */
1260      function sodium_library_version_minor()
1261      {
1262          return ParagonIE_Sodium_Compat::library_version_minor();
1263      }
1264  }
1265  if (!is_callable('sodium_version_string')) {
1266      /**
1267       * @see ParagonIE_Sodium_Compat::version_string()
1268       * @return string
1269       */
1270      function sodium_version_string()
1271      {
1272          return ParagonIE_Sodium_Compat::version_string();
1273      }
1274  }
1275  if (!is_callable('sodium_memcmp')) {
1276      /**
1277       * @see ParagonIE_Sodium_Compat::memcmp()
1278       * @param string $a
1279       * @param string $b
1280       * @return int
1281       * @throws SodiumException
1282       * @throws TypeError
1283       */
1284      function sodium_memcmp($a, $b)
1285      {
1286          return ParagonIE_Sodium_Compat::memcmp($a, $b);
1287      }
1288  }
1289  if (!is_callable('sodium_memzero')) {
1290      /**
1291       * @see ParagonIE_Sodium_Compat::memzero()
1292       * @param string $str
1293       * @return void
1294       * @throws SodiumException
1295       * @throws TypeError
1296       */
1297      function sodium_memzero(&$str)
1298      {
1299          ParagonIE_Sodium_Compat::memzero($str);
1300      }
1301  }
1302  if (!is_callable('sodium_pad')) {
1303      /**
1304       * @see ParagonIE_Sodium_Compat::pad()
1305       * @param string $unpadded
1306       * @param int $blockSize
1307       * @return int
1308       * @throws SodiumException
1309       * @throws TypeError
1310       */
1311      function sodium_pad($unpadded, $blockSize)
1312      {
1313          return ParagonIE_Sodium_Compat::pad($unpadded, $blockSize, true);
1314      }
1315  }
1316  if (!is_callable('sodium_unpad')) {
1317      /**
1318       * @see ParagonIE_Sodium_Compat::pad()
1319       * @param string $padded
1320       * @param int $blockSize
1321       * @return int
1322       * @throws SodiumException
1323       * @throws TypeError
1324       */
1325      function sodium_unpad($padded, $blockSize)
1326      {
1327          return ParagonIE_Sodium_Compat::unpad($padded, $blockSize, true);
1328      }
1329  }
1330  if (!is_callable('sodium_randombytes_buf')) {
1331      /**
1332       * @see ParagonIE_Sodium_Compat::randombytes_buf()
1333       * @param int $amount
1334       * @return string
1335       * @throws Exception
1336       */
1337      function sodium_randombytes_buf($amount)
1338      {
1339          return ParagonIE_Sodium_Compat::randombytes_buf($amount);
1340      }
1341  }
1342  
1343  if (!is_callable('sodium_randombytes_uniform')) {
1344      /**
1345       * @see ParagonIE_Sodium_Compat::randombytes_uniform()
1346       * @param int $upperLimit
1347       * @return int
1348       * @throws Exception
1349       */
1350      function sodium_randombytes_uniform($upperLimit)
1351      {
1352          return ParagonIE_Sodium_Compat::randombytes_uniform($upperLimit);
1353      }
1354  }
1355  
1356  if (!is_callable('sodium_randombytes_random16')) {
1357      /**
1358       * @see ParagonIE_Sodium_Compat::randombytes_random16()
1359       * @return int
1360       * @throws Exception
1361       */
1362      function sodium_randombytes_random16()
1363      {
1364          return ParagonIE_Sodium_Compat::randombytes_random16();
1365      }
1366  }