streamCipher.js 1.8 KB

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  1. (function() {
  2. var nodeEnv = typeof require !== 'undefined' && typeof process !== 'undefined';
  3. var __module = nodeEnv ? module : {exports:{}};
  4. var __filename = 'preview-scripts/__node_modules/browserify-aes/streamCipher.js';
  5. var __require = nodeEnv ? function (request) {
  6. return cc.require(request);
  7. } : function (request) {
  8. return __quick_compile_project__.require(request, __filename);
  9. };
  10. function __define (exports, require, module) {
  11. if (!nodeEnv) {__quick_compile_project__.registerModule(__filename, module);}var aes = require('./aes')
  12. var Buffer = require('safe-buffer').Buffer
  13. var Transform = require('cipher-base')
  14. var inherits = require('inherits')
  15. function StreamCipher (mode, key, iv, decrypt) {
  16. Transform.call(this)
  17. this._cipher = new aes.AES(key)
  18. this._prev = Buffer.from(iv)
  19. this._cache = Buffer.allocUnsafe(0)
  20. this._secCache = Buffer.allocUnsafe(0)
  21. this._decrypt = decrypt
  22. this._mode = mode
  23. }
  24. inherits(StreamCipher, Transform)
  25. StreamCipher.prototype._update = function (chunk) {
  26. return this._mode.encrypt(this, chunk, this._decrypt)
  27. }
  28. StreamCipher.prototype._final = function () {
  29. this._cipher.scrub()
  30. }
  31. module.exports = StreamCipher
  32. }
  33. if (nodeEnv) {
  34. __define(__module.exports, __require, __module);
  35. }
  36. else {
  37. __quick_compile_project__.registerModuleFunc(__filename, function () {
  38. __define(__module.exports, __require, __module);
  39. });
  40. }
  41. })();