pkijs
Version:
Public Key Infrastructure (PKI) is the basis of how identity and key management is performed on the web today. PKIjs is a pure JavaScript library implementing the formats that are used in PKI applications. It is built on WebCrypto and aspires to make it p
262 lines (226 loc) • 8.75 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _asn1js = require("asn1js");
var asn1js = _interopRequireWildcard(_asn1js);
var _pvutils = require("pvutils");
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
//**************************************************************************************
/**
* Class from RFC5480
*/
var ECPublicKey = function () {
//**********************************************************************************
/**
* Constructor for ECCPublicKey class
* @param {Object} [parameters={}]
* @property {Object} [schema] asn1js parsed value
*/
function ECPublicKey() {
var parameters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
_classCallCheck(this, ECPublicKey);
//region Internal properties of the object
/**
* @type {ArrayBuffer}
* @description type
*/
this.x = (0, _pvutils.getParametersValue)(parameters, "x", ECPublicKey.defaultValues("x"));
/**
* @type {ArrayBuffer}
* @description values
*/
this.y = (0, _pvutils.getParametersValue)(parameters, "y", ECPublicKey.defaultValues("y"));
/**
* @type {string}
* @description namedCurve
*/
this.namedCurve = (0, _pvutils.getParametersValue)(parameters, "namedCurve", ECPublicKey.defaultValues("namedCurve"));
//endregion
//region If input argument array contains "schema" for this object
if ("schema" in parameters) this.fromSchema(parameters.schema);
//endregion
//region If input argument array contains "json" for this object
if ("json" in parameters) this.fromJSON(parameters.json);
//endregion
}
//**********************************************************************************
/**
* Return default values for all class members
* @param {string} memberName String name for a class member
*/
_createClass(ECPublicKey, [{
key: "fromSchema",
//**********************************************************************************
/**
* Convert ArrayBuffer into current class
* @param {!ArrayBuffer} schema Special case: schema is an ArrayBuffer
*/
value: function fromSchema(schema) {
//region Check the schema is valid
if (schema instanceof ArrayBuffer === false) throw new Error("Object's schema was not verified against input data for ECPublicKey");
var view = new Uint8Array(schema);
if (view[0] !== 0x04) throw new Error("Object's schema was not verified against input data for ECPublicKey");
//endregion
//region Get internal properties from parsed schema
var coordinateLength = void 0;
switch (this.namedCurve) {
case "1.2.840.10045.3.1.7":
// P-256
coordinateLength = 32;
break;
case "1.3.132.0.34":
// P-384
coordinateLength = 48;
break;
case "1.3.132.0.35":
// P-521
coordinateLength = 66;
break;
default:
throw new Error("Incorrect curve OID: " + this.namedCurve);
}
if (schema.byteLength !== coordinateLength * 2 + 1) throw new Error("Object's schema was not verified against input data for ECPublicKey");
this.x = schema.slice(1, coordinateLength + 1);
this.y = schema.slice(1 + coordinateLength, coordinateLength * 2 + 1);
//endregion
}
//**********************************************************************************
/**
* Convert current object to asn1js object and set correct values
* @returns {Object} asn1js object
*/
}, {
key: "toSchema",
value: function toSchema() {
return new asn1js.RawData({ data: (0, _pvutils.utilConcatBuf)(new Uint8Array([0x04]).buffer, this.x, this.y)
});
}
//**********************************************************************************
/**
* Convertion for the class to JSON object
* @returns {Object}
*/
}, {
key: "toJSON",
value: function toJSON() {
var crvName = "";
switch (this.namedCurve) {
case "1.2.840.10045.3.1.7":
// P-256
crvName = "P-256";
break;
case "1.3.132.0.34":
// P-384
crvName = "P-384";
break;
case "1.3.132.0.35":
// P-521
crvName = "P-521";
break;
default:
}
return {
crv: crvName,
x: (0, _pvutils.toBase64)((0, _pvutils.arrayBufferToString)(this.x), true, true, false),
y: (0, _pvutils.toBase64)((0, _pvutils.arrayBufferToString)(this.y), true, true, false)
};
}
//**********************************************************************************
/**
* Convert JSON value into current object
* @param {Object} json
*/
}, {
key: "fromJSON",
value: function fromJSON(json) {
var coodinateLength = 0;
if ("crv" in json) {
switch (json.crv.toUpperCase()) {
case "P-256":
this.namedCurve = "1.2.840.10045.3.1.7";
coodinateLength = 32;
break;
case "P-384":
this.namedCurve = "1.3.132.0.34";
coodinateLength = 48;
break;
case "P-521":
this.namedCurve = "1.3.132.0.35";
coodinateLength = 66;
break;
default:
}
} else throw new Error("Absent mandatory parameter \"crv\"");
if ("x" in json) {
var convertBuffer = (0, _pvutils.stringToArrayBuffer)((0, _pvutils.fromBase64)(json.x, true));
if (convertBuffer.byteLength < coodinateLength) {
this.x = new ArrayBuffer(coodinateLength);
var view = new Uint8Array(this.x);
var convertBufferView = new Uint8Array(convertBuffer);
view.set(convertBufferView, 1);
} else this.x = convertBuffer.slice(0, coodinateLength);
} else throw new Error("Absent mandatory parameter \"x\"");
if ("y" in json) {
var _convertBuffer = (0, _pvutils.stringToArrayBuffer)((0, _pvutils.fromBase64)(json.y, true));
if (_convertBuffer.byteLength < coodinateLength) {
this.y = new ArrayBuffer(coodinateLength);
var _view = new Uint8Array(this.y);
var _convertBufferView = new Uint8Array(_convertBuffer);
_view.set(_convertBufferView, 1);
} else this.y = _convertBuffer.slice(0, coodinateLength);
} else throw new Error("Absent mandatory parameter \"y\"");
}
//**********************************************************************************
}], [{
key: "defaultValues",
value: function defaultValues(memberName) {
switch (memberName) {
case "x":
case "y":
return new ArrayBuffer(0);
case "namedCurve":
return "";
default:
throw new Error("Invalid member name for ECCPublicKey class: " + memberName);
}
}
//**********************************************************************************
/**
* Compare values with default values for all class members
* @param {string} memberName String name for a class member
* @param {*} memberValue Value to compare with default value
*/
}, {
key: "compareWithDefault",
value: function compareWithDefault(memberName, memberValue) {
switch (memberName) {
case "x":
case "y":
return (0, _pvutils.isEqualBuffer)(memberValue, ECPublicKey.defaultValues(memberName));
case "namedCurve":
return memberValue === "";
default:
throw new Error("Invalid member name for ECCPublicKey class: " + memberName);
}
}
//**********************************************************************************
/**
* Return value of asn1js schema for current class
* @param {Object} parameters Input parameters for the schema
* @returns {Object} asn1js schema object
*/
}, {
key: "schema",
value: function schema() {
var parameters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
return new asn1js.RawData();
}
}]);
return ECPublicKey;
}();
//**************************************************************************************
exports.default = ECPublicKey;
//# sourceMappingURL=ECPublicKey.js.map