spb/admin-ka

1"use strict";23Object.defineProperty(exports, "__esModule", {4  value: true5});6exports.DHCipher = void 0;7var _bigint = require("./bigint.js");8function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }9function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }10function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }11function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }12function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }13function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }14var DHPublicKey = /*#__PURE__*/function () {15  function DHPublicKey(key) {16    _classCallCheck(this, DHPublicKey);17    this._key = key;18  }19  return _createClass(DHPublicKey, [{20    key: "algorithm",21    get: function get() {22      return {23        name: "DH"24      };25    }26  }, {27    key: "exportKey",28    value: function exportKey() {29      return this._key;30    }31  }]);32}();33var DHCipher = exports.DHCipher = /*#__PURE__*/function () {34  function DHCipher() {35    _classCallCheck(this, DHCipher);36    this._g = null;37    this._p = null;38    this._gBigInt = null;39    this._pBigInt = null;40    this._privateKey = null;41  }42  return _createClass(DHCipher, [{43    key: "algorithm",44    get: function get() {45      return {46        name: "DH"47      };48    }49  }, {50    key: "_generateKey",51    value: function _generateKey(algorithm) {52      var g = algorithm.g;53      var p = algorithm.p;54      this._keyBytes = p.length;55      this._gBigInt = (0, _bigint.u8ArrayToBigInt)(g);56      this._pBigInt = (0, _bigint.u8ArrayToBigInt)(p);57      this._privateKey = window.crypto.getRandomValues(new Uint8Array(this._keyBytes));58      this._privateKeyBigInt = (0, _bigint.u8ArrayToBigInt)(this._privateKey);59      this._publicKey = (0, _bigint.bigIntToU8Array)((0, _bigint.modPow)(this._gBigInt, this._privateKeyBigInt, this._pBigInt), this._keyBytes);60    }61  }, {62    key: "deriveBits",63    value: function deriveBits(algorithm, length) {64      var bytes = Math.ceil(length / 8);65      var pkey = new Uint8Array(algorithm["public"]);66      var len = bytes > this._keyBytes ? bytes : this._keyBytes;67      var secret = (0, _bigint.modPow)((0, _bigint.u8ArrayToBigInt)(pkey), this._privateKeyBigInt, this._pBigInt);68      return (0, _bigint.bigIntToU8Array)(secret, len).slice(0, len);69    }70  }], [{71    key: "generateKey",72    value: function generateKey(algorithm, _extractable) {73      var cipher = new DHCipher();74      cipher._generateKey(algorithm);75      return {76        privateKey: cipher,77        publicKey: new DHPublicKey(cipher._publicKey)78      };79    }80  }]);81}();