pkijs
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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
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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");
var _common = require("./common.js");
var _AlgorithmIdentifier = require("./AlgorithmIdentifier.js");
var _AlgorithmIdentifier2 = _interopRequireDefault(_AlgorithmIdentifier);
var _ECPublicKey = require("./ECPublicKey.js");
var _ECPublicKey2 = _interopRequireDefault(_ECPublicKey);
var _RSAPublicKey = require("./RSAPublicKey.js");
var _RSAPublicKey2 = _interopRequireDefault(_RSAPublicKey);
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 RFC5280
*/
var PublicKeyInfo = function () {
//**********************************************************************************
/**
* Constructor for PublicKeyInfo class
* @param {Object} [parameters={}]
* @property {Object} [schema] asn1js parsed value
*/
function PublicKeyInfo() {
var parameters = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
_classCallCheck(this, PublicKeyInfo);
//region Internal properties of the object
/**
* @type {AlgorithmIdentifier}
* @description Algorithm identifier
*/
this.algorithm = (0, _pvutils.getParametersValue)(parameters, "algorithm", PublicKeyInfo.defaultValues("algorithm"));
/**
* @type {BitString}
* @description Subject public key value
*/
this.subjectPublicKey = (0, _pvutils.getParametersValue)(parameters, "subjectPublicKey", PublicKeyInfo.defaultValues("subjectPublicKey"));
if ("parsedKey" in parameters)
/**
* @type {ECPublicKey|RSAPublicKey}
* @description Parsed public key value
*/
this.parsedKey = (0, _pvutils.getParametersValue)(parameters, "parsedKey", PublicKeyInfo.defaultValues("parsedKey"));
//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(PublicKeyInfo, [{
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, PublicKeyInfo.schema({
names: {
algorithm: {
names: {
blockName: "algorithm"
}
},
subjectPublicKey: "subjectPublicKey"
}
}));
if (asn1.verified === false) throw new Error("Object's schema was not verified against input data for PublicKeyInfo");
//endregion
//region Get internal properties from parsed schema
this.algorithm = new _AlgorithmIdentifier2.default({ schema: asn1.result.algorithm });
this.subjectPublicKey = asn1.result.subjectPublicKey;
switch (this.algorithm.algorithmId) {
case "1.2.840.10045.2.1":
// ECDSA
if ("algorithmParams" in this.algorithm) {
if (this.algorithm.algorithmParams instanceof asn1js.ObjectIdentifier) {
try {
this.parsedKey = new _ECPublicKey2.default({
namedCurve: this.algorithm.algorithmParams.valueBlock.toString(),
schema: this.subjectPublicKey.valueBlock.valueHex
});
} catch (ex) {} // Could be a problems during recognision of internal public key data here. Let's ignore them.
}
}
break;
case "1.2.840.113549.1.1.1":
// RSA
{
var publicKeyASN1 = asn1js.fromBER(this.subjectPublicKey.valueBlock.valueHex);
if (publicKeyASN1.offset !== -1) {
try {
this.parsedKey = new _RSAPublicKey2.default({ schema: publicKeyASN1.result });
} catch (ex) {} // Could be a problems during recognision of internal public key data here. Let's ignore them.
}
}
break;
default:
}
//endregion
}
//**********************************************************************************
/**
* Convert current object to asn1js object and set correct values
* @returns {Object} asn1js object
*/
}, {
key: "toSchema",
value: function toSchema() {
//region Construct and return new ASN.1 schema for this object
return new asn1js.Sequence({
value: [this.algorithm.toSchema(), this.subjectPublicKey]
});
//endregion
}
//**********************************************************************************
/**
* Convertion for the class to JSON object
* @returns {Object}
*/
}, {
key: "toJSON",
value: function toJSON() {
//region Return common value in case we do not have enough info fo making JWK
if ("parsedKey" in this === false) {
return {
algorithm: this.algorithm.toJSON(),
subjectPublicKey: this.subjectPublicKey.toJSON()
};
}
//endregion
//region Making JWK
var jwk = {};
switch (this.algorithm.algorithmId) {
case "1.2.840.10045.2.1":
// ECDSA
jwk.kty = "EC";
break;
case "1.2.840.113549.1.1.1":
// RSA
jwk.kty = "RSA";
break;
default:
}
var publicKeyJWK = this.parsedKey.toJSON();
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;
try {
for (var _iterator = Object.keys(publicKeyJWK)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var key = _step.value;
jwk[key] = publicKeyJWK[key];
}
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator.return) {
_iterator.return();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}
return jwk;
//endregion
}
//**********************************************************************************
/**
* Convert JSON value into current object
* @param {Object} json
*/
}, {
key: "fromJSON",
value: function fromJSON(json) {
if ("kty" in json) {
switch (json.kty.toUpperCase()) {
case "EC":
this.parsedKey = new _ECPublicKey2.default({ json: json });
this.algorithm = new _AlgorithmIdentifier2.default({
algorithmId: "1.2.840.10045.2.1",
algorithmParams: new asn1js.ObjectIdentifier({ value: this.parsedKey.namedCurve })
});
break;
case "RSA":
this.parsedKey = new _RSAPublicKey2.default({ json: json });
this.algorithm = new _AlgorithmIdentifier2.default({
algorithmId: "1.2.840.113549.1.1.1",
algorithmParams: new asn1js.Null()
});
break;
default:
throw new Error("Invalid value for \"kty\" parameter: " + json.kty);
}
this.subjectPublicKey = new asn1js.BitString({ valueHex: this.parsedKey.toSchema().toBER(false) });
}
}
//**********************************************************************************
}, {
key: "importKey",
value: function importKey(publicKey) {
//region Initial variables
var sequence = Promise.resolve();
var _this = this;
//endregion
//region Initial check
if (typeof publicKey === "undefined") return Promise.reject("Need to provide publicKey input parameter");
//endregion
//region Get a "crypto" extension
var crypto = (0, _common.getCrypto)();
if (typeof crypto === "undefined") return Promise.reject("Unable to create WebCrypto object");
//endregion
//region Export public key
sequence = sequence.then(function () {
return crypto.exportKey("spki", publicKey);
});
//endregion
//region Initialize internal variables by parsing exported value
sequence = sequence.then(
/**
* @param {ArrayBuffer} exportedKey
*/
function (exportedKey) {
var asn1 = asn1js.fromBER(exportedKey);
try {
_this.fromSchema(asn1.result);
} catch (exception) {
return Promise.reject("Error during initializing object from schema");
}
return undefined;
}, function (error) {
return Promise.reject("Error during exporting public key: " + error);
});
//endregion
return sequence;
}
//**********************************************************************************
}], [{
key: "defaultValues",
value: function defaultValues(memberName) {
switch (memberName) {
case "algorithm":
return new _AlgorithmIdentifier2.default();
case "subjectPublicKey":
return new asn1js.BitString();
default:
throw new Error("Invalid member name for PublicKeyInfo 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] : {};
//SubjectPublicKeyInfo ::= Sequence {
// algorithm AlgorithmIdentifier,
// subjectPublicKey BIT STRING }
/**
* @type {Object}
* @property {string} [blockName]
* @property {string} [algorithm]
* @property {string} [subjectPublicKey]
*/
var names = (0, _pvutils.getParametersValue)(parameters, "names", {});
return new asn1js.Sequence({
name: names.blockName || "",
value: [_AlgorithmIdentifier2.default.schema(names.algorithm || {}), new asn1js.BitString({ name: names.subjectPublicKey || "" })]
});
}
}]);
return PublicKeyInfo;
}();
//**************************************************************************************
exports.default = PublicKeyInfo;
//# sourceMappingURL=PublicKeyInfo.js.map