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- (function() {
- var nodeEnv = typeof require !== 'undefined' && typeof process !== 'undefined';
- var __module = nodeEnv ? module : {exports:{}};
- var __filename = 'preview-scripts/__node_modules/evp_bytestokey/index.js';
- var __require = nodeEnv ? function (request) {
- return cc.require(request);
- } : function (request) {
- return __quick_compile_project__.require(request, __filename);
- };
- function __define (exports, require, module) {
- if (!nodeEnv) {__quick_compile_project__.registerModule(__filename, module);}var Buffer = require('safe-buffer').Buffer
- var MD5 = require('md5.js')
- /* eslint-disable camelcase */
- function EVP_BytesToKey (password, salt, keyBits, ivLen) {
- if (!Buffer.isBuffer(password)) password = Buffer.from(password, 'binary')
- if (salt) {
- if (!Buffer.isBuffer(salt)) salt = Buffer.from(salt, 'binary')
- if (salt.length !== 8) throw new RangeError('salt should be Buffer with 8 byte length')
- }
- var keyLen = keyBits / 8
- var key = Buffer.alloc(keyLen)
- var iv = Buffer.alloc(ivLen || 0)
- var tmp = Buffer.alloc(0)
- while (keyLen > 0 || ivLen > 0) {
- var hash = new MD5()
- hash.update(tmp)
- hash.update(password)
- if (salt) hash.update(salt)
- tmp = hash.digest()
- var used = 0
- if (keyLen > 0) {
- var keyStart = key.length - keyLen
- used = Math.min(keyLen, tmp.length)
- tmp.copy(key, keyStart, 0, used)
- keyLen -= used
- }
- if (used < tmp.length && ivLen > 0) {
- var ivStart = iv.length - ivLen
- var length = Math.min(ivLen, tmp.length - used)
- tmp.copy(iv, ivStart, used, used + length)
- ivLen -= length
- }
- }
- tmp.fill(0)
- return { key: key, iv: iv }
- }
- module.exports = EVP_BytesToKey
- }
- if (nodeEnv) {
- __define(__module.exports, __require, __module);
- }
- else {
- __quick_compile_project__.registerModuleFunc(__filename, function () {
- __define(__module.exports, __require, __module);
- });
- }
- })();
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