WordPoints /
wordpoints
| @@ 94-147 (lines=54) @@ | ||
| 91 | * @throws Error |
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| 92 | * @throws TypeError |
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| 93 | */ |
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| 94 | public static function box_open($inputFile, $outputFile, $nonce, $keypair) |
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| 95 | { |
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| 96 | /* Type checks: */ |
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| 97 | if (!is_string($inputFile)) { |
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| 98 | throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.'); |
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| 99 | } |
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| 100 | if (!is_string($outputFile)) { |
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| 101 | throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.'); |
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| 102 | } |
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| 103 | if (!is_string($nonce)) { |
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| 104 | throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.'); |
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| 105 | } |
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| 106 | if (!is_string($keypair)) { |
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| 107 | throw new TypeError('Argument 4 must be a string, ' . gettype($keypair) . ' given.'); |
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| 108 | } |
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| 109 | ||
| 110 | /* Input validation: */ |
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| 111 | if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_NONCEBYTES) { |
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| 112 | throw new TypeError('Argument 4 must be CRYPTO_BOX_NONCEBYTES bytes'); |
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| 113 | } |
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| 114 | if (self::strlen($keypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) { |
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| 115 | throw new TypeError('Argument 4 must be CRYPTO_BOX_KEYPAIRBYTES bytes'); |
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| 116 | } |
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| 117 | ||
| 118 | /** @var int $size */ |
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| 119 | $size = filesize($inputFile); |
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| 120 | if (!is_int($size)) { |
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| 121 | throw new Error('Could not obtain the file size'); |
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| 122 | } |
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| 123 | ||
| 124 | /** @var resource $ifp */ |
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| 125 | $ifp = fopen($inputFile, 'rb'); |
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| 126 | if (!is_resource($ifp)) { |
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| 127 | throw new Error('Could not open input file for reading'); |
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| 128 | } |
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| 129 | ||
| 130 | /** @var resource $ofp */ |
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| 131 | $ofp = fopen($outputFile, 'wb'); |
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| 132 | if (!is_resource($ofp)) { |
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| 133 | fclose($ifp); |
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| 134 | throw new Error('Could not open output file for writing'); |
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| 135 | } |
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| 136 | ||
| 137 | $res = self::box_decrypt($ifp, $ofp, $size, $nonce, $keypair); |
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| 138 | fclose($ifp); |
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| 139 | fclose($ofp); |
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| 140 | try { |
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| 141 | ParagonIE_Sodium_Compat::memzero($nonce); |
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| 142 | ParagonIE_Sodium_Compat::memzero($ephKeypair); |
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| 143 | } catch (Error $ex) { |
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| 144 | unset($ephKeypair); |
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| 145 | } |
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| 146 | return $res; |
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| 147 | } |
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| 148 | ||
| 149 | /** |
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| 150 | * Seal a file (rather than a string). Uses less memory than |
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| @@ 491-543 (lines=53) @@ | ||
| 488 | * @throws Error |
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| 489 | * @throws TypeError |
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| 490 | */ |
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| 491 | public static function secretbox_open($inputFile, $outputFile, $nonce, $key) |
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| 492 | { |
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| 493 | /* Type checks: */ |
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| 494 | if (!is_string($inputFile)) { |
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| 495 | throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.'); |
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| 496 | } |
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| 497 | if (!is_string($outputFile)) { |
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| 498 | throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.'); |
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| 499 | } |
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| 500 | if (!is_string($nonce)) { |
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| 501 | throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.'); |
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| 502 | } |
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| 503 | if (!is_string($key)) { |
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| 504 | throw new TypeError('Argument 4 must be a string, ' . gettype($key) . ' given.'); |
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| 505 | } |
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| 506 | ||
| 507 | /* Input validation: */ |
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| 508 | if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_NONCEBYTES) { |
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| 509 | throw new TypeError('Argument 4 must be CRYPTO_SECRETBOX_NONCEBYTES bytes'); |
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| 510 | } |
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| 511 | if (self::strlen($key) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_KEYBYTES) { |
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| 512 | throw new TypeError('Argument 4 must be CRYPTO_SECRETBOXBOX_KEYBYTES bytes'); |
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| 513 | } |
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| 514 | ||
| 515 | /** @var int $size */ |
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| 516 | $size = filesize($inputFile); |
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| 517 | if (!is_int($size)) { |
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| 518 | throw new Error('Could not obtain the file size'); |
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| 519 | } |
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| 520 | ||
| 521 | /** @var resource $ifp */ |
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| 522 | $ifp = fopen($inputFile, 'rb'); |
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| 523 | if (!is_resource($ifp)) { |
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| 524 | throw new Error('Could not open input file for reading'); |
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| 525 | } |
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| 526 | ||
| 527 | /** @var resource $ofp */ |
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| 528 | $ofp = fopen($outputFile, 'wb'); |
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| 529 | if (!is_resource($ofp)) { |
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| 530 | fclose($ifp); |
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| 531 | throw new Error('Could not open output file for writing'); |
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| 532 | } |
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| 533 | ||
| 534 | $res = self::secretbox_decrypt($ifp, $ofp, $size, $nonce, $key); |
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| 535 | fclose($ifp); |
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| 536 | fclose($ofp); |
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| 537 | try { |
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| 538 | ParagonIE_Sodium_Compat::memzero($key); |
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| 539 | } catch (Error $ex) { |
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| 540 | unset($key); |
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| 541 | } |
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| 542 | return $res; |
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| 543 | } |
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| 544 | ||
| 545 | /** |
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| 546 | * Sign a file (rather than a string). Uses less memory than |
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