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
337 lines (287 loc) • 11.3 kB
JavaScript
"use strict";
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");
var _ECPublicKey = require("./ECPublicKey.js");
var _ECPublicKey2 = _interopRequireDefault(_ECPublicKey);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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 RFC5915
*/
var ECPrivateKey = function () {
//**********************************************************************************
/**
* Constructor for ECCPrivateKey class
* @param {Object} [parameters={}]
* @property {Object} [schema] asn1js parsed value
*/
function ECPrivateKey() {
var parameters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
_classCallCheck(this, ECPrivateKey);
//region Internal properties of the object
/**
* @type {number}
* @description version
*/
this.version = (0, _pvutils.getParametersValue)(parameters, "version", ECPrivateKey.defaultValues("version"));
/**
* @type {OctetString}
* @description privateKey
*/
this.privateKey = (0, _pvutils.getParametersValue)(parameters, "privateKey", ECPrivateKey.defaultValues("privateKey"));
if ("namedCurve" in parameters)
/**
* @type {string}
* @description namedCurve
*/
this.namedCurve = (0, _pvutils.getParametersValue)(parameters, "namedCurve", ECPrivateKey.defaultValues("namedCurve"));
if ("publicKey" in parameters)
/**
* @type {ECPublicKey}
* @description publicKey
*/
this.publicKey = (0, _pvutils.getParametersValue)(parameters, "publicKey", ECPrivateKey.defaultValues("publicKey"));
//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(ECPrivateKey, [{
key: "fromSchema",
//**********************************************************************************
/**
* Convert parsed asn1js object into current class
* @param {!Object} schema
*/
value: function fromSchema(schema) {
//region Check the schema is valid
var asn1 = asn1js.compareSchema(schema, schema, ECPrivateKey.schema({
names: {
version: "version",
privateKey: "privateKey",
namedCurve: "namedCurve",
publicKey: "publicKey"
}
}));
if (asn1.verified === false) throw new Error("Object's schema was not verified against input data for ECPrivateKey");
//endregion
//region Get internal properties from parsed schema
this.version = asn1.result.version.valueBlock.valueDec;
this.privateKey = asn1.result.privateKey;
if ("namedCurve" in asn1.result) this.namedCurve = asn1.result.namedCurve.valueBlock.toString();
if ("publicKey" in asn1.result) {
var publicKeyData = { schema: asn1.result.publicKey.valueBlock.valueHex };
if ("namedCurve" in this) publicKeyData.namedCurve = this.namedCurve;
this.publicKey = new _ECPublicKey2.default(publicKeyData);
}
//endregion
}
//**********************************************************************************
/**
* Convert current object to asn1js object and set correct values
* @returns {Object} asn1js object
*/
}, {
key: "toSchema",
value: function toSchema() {
var outputArray = [new asn1js.Integer({ value: this.version }), this.privateKey];
if ("namedCurve" in this) {
outputArray.push(new asn1js.Constructed({
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: [new asn1js.ObjectIdentifier({ value: this.namedCurve })]
}));
}
if ("publicKey" in this) {
outputArray.push(new asn1js.Constructed({
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 1 // [1]
},
value: [new asn1js.BitString({ valueHex: this.publicKey.toSchema().toBER(false) })]
}));
}
return new asn1js.Sequence({
value: outputArray
});
}
//**********************************************************************************
/**
* Convertion for the class to JSON object
* @returns {Object}
*/
}, {
key: "toJSON",
value: function toJSON() {
if ("namedCurve" in this === false || ECPrivateKey.compareWithDefault("namedCurve", this.namedCurve)) throw new Error("Not enough information for making JSON: absent \"namedCurve\" value");
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:
}
var privateKeyJSON = {
crv: crvName,
d: (0, _pvutils.toBase64)((0, _pvutils.arrayBufferToString)(this.privateKey.valueBlock.valueHex), true, true, false)
};
if ("publicKey" in this) {
var publicKeyJSON = this.publicKey.toJSON();
privateKeyJSON.x = publicKeyJSON.x;
privateKeyJSON.y = publicKeyJSON.y;
}
return privateKeyJSON;
}
//**********************************************************************************
/**
* 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 ("d" in json) {
var convertBuffer = (0, _pvutils.stringToArrayBuffer)((0, _pvutils.fromBase64)(json.d, true));
if (convertBuffer.byteLength < coodinateLength) {
var buffer = new ArrayBuffer(coodinateLength);
var view = new Uint8Array(buffer);
var convertBufferView = new Uint8Array(convertBuffer);
view.set(convertBufferView, 1);
this.privateKey = new asn1js.OctetString({ valueHex: buffer });
} else this.privateKey = new asn1js.OctetString({ valueHex: convertBuffer.slice(0, coodinateLength) });
} else throw new Error("Absent mandatory parameter \"d\"");
if ("x" in json && "y" in json) this.publicKey = new _ECPublicKey2.default({ json: json });
}
//**********************************************************************************
}], [{
key: "defaultValues",
value: function defaultValues(memberName) {
switch (memberName) {
case "version":
return 1;
case "privateKey":
return new asn1js.OctetString();
case "namedCurve":
return "";
case "publicKey":
return new _ECPublicKey2.default();
default:
throw new Error("Invalid member name for ECCPrivateKey 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 "version":
return memberValue === ECPrivateKey.defaultValues(memberName);
case "privateKey":
return memberValue.isEqual(ECPrivateKey.defaultValues(memberName));
case "namedCurve":
return memberValue === "";
case "publicKey":
return _ECPublicKey2.default.compareWithDefault("namedCurve", memberValue.namedCurve) && _ECPublicKey2.default.compareWithDefault("x", memberValue.x) && _ECPublicKey2.default.compareWithDefault("y", memberValue.y);
default:
throw new Error("Invalid member name for ECCPrivateKey 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] : {};
// ECPrivateKey ::= SEQUENCE {
// version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
// privateKey OCTET STRING,
// parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
// publicKey [1] BIT STRING OPTIONAL
// }
/**
* @type {Object}
* @property {string} [blockName]
* @property {string} [version]
* @property {string} [privateKey]
* @property {string} [namedCurve]
* @property {string} [publicKey]
*/
var names = (0, _pvutils.getParametersValue)(parameters, "names", {});
return new asn1js.Sequence({
name: names.blockName || "",
value: [new asn1js.Integer({ name: names.version || "" }), new asn1js.OctetString({ name: names.privateKey || "" }), new asn1js.Constructed({
optional: true,
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: [new asn1js.ObjectIdentifier({ name: names.namedCurve || "" })]
}), new asn1js.Constructed({
optional: true,
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 1 // [1]
},
value: [new asn1js.BitString({ name: names.publicKey || "" })]
})]
});
}
}]);
return ECPrivateKey;
}();
//**************************************************************************************
exports.default = ECPrivateKey;
//# sourceMappingURL=ECPrivateKey.js.map