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
import * as asn1js from "asn1js";
import { getParametersValue } from "pvutils";
import MessageImprint from "./MessageImprint.js";
import Extension from "./Extension.js";
//**************************************************************************************
/**
* Class from RFC3161
*/
export default class TimeStampReq
{
//**********************************************************************************
/**
* Constructor for TimeStampReq class
* @param {Object} [parameters={}]
* @property {Object} [schema] asn1js parsed value
*/
constructor(parameters = {})
{
//region Internal properties of the object
/**
* @type {number}
* @description version
*/
this.version = getParametersValue(parameters, "version", TimeStampReq.defaultValues("version"));
/**
* @type {MessageImprint}
* @description messageImprint
*/
this.messageImprint = getParametersValue(parameters, "messageImprint", TimeStampReq.defaultValues("messageImprint"));
if("reqPolicy" in parameters)
/**
* @type {string}
* @description reqPolicy
*/
this.reqPolicy = getParametersValue(parameters, "reqPolicy", TimeStampReq.defaultValues("reqPolicy"));
if("nonce" in parameters)
/**
* @type {Integer}
* @description nonce
*/
this.nonce = getParametersValue(parameters, "nonce", TimeStampReq.defaultValues("nonce"));
if("certReq" in parameters)
/**
* @type {boolean}
* @description certReq
*/
this.certReq = getParametersValue(parameters, "certReq", TimeStampReq.defaultValues("certReq"));
if("extensions" in parameters)
/**
* @type {Array.<Extension>}
* @description extensions
*/
this.extensions = getParametersValue(parameters, "extensions", TimeStampReq.defaultValues("extensions"));
//endregion
//region If input argument array contains "schema" for this object
if("schema" in parameters)
this.fromSchema(parameters.schema);
//endregion
}
//**********************************************************************************
/**
* Return default values for all class members
* @param {string} memberName String name for a class member
*/
static defaultValues(memberName)
{
switch(memberName)
{
case "version":
return 0;
case "messageImprint":
return new MessageImprint();
case "reqPolicy":
return "";
case "nonce":
return new asn1js.Integer();
case "certReq":
return false;
case "extensions":
return [];
default:
throw new Error(`Invalid member name for TimeStampReq 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
*/
static compareWithDefault(memberName, memberValue)
{
switch(memberName)
{
case "version":
case "reqPolicy":
case "certReq":
return (memberValue === TimeStampReq.defaultValues(memberName));
case "messageImprint":
return ((MessageImprint.compareWithDefault("hashAlgorithm", memberValue.hashAlgorithm)) &&
(MessageImprint.compareWithDefault("hashedMessage", memberValue.hashedMessage)));
case "nonce":
return (memberValue.isEqual(TimeStampReq.defaultValues(memberName)));
case "extensions":
return (memberValue.length === 0);
default:
throw new Error(`Invalid member name for TimeStampReq class: ${memberName}`);
}
}
//**********************************************************************************
/**
* Return value of asn1js schema for current class
* @param {Object} parameters Input parameters for the schema
* @returns {Object} asn1js schema object
*/
static schema(parameters = {})
{
//TimeStampReq ::= SEQUENCE {
// version INTEGER { v1(1) },
// messageImprint MessageImprint,
// reqPolicy TSAPolicyId OPTIONAL,
// nonce INTEGER OPTIONAL,
// certReq BOOLEAN DEFAULT FALSE,
// extensions [0] IMPLICIT Extensions OPTIONAL }
//
//TSAPolicyId ::= OBJECT IDENTIFIER
/**
* @type {Object}
* @property {string} [blockName]
* @property {string} [type]
* @property {string} [setName]
* @property {string} [values]
*/
const names = getParametersValue(parameters, "names", {});
return (new asn1js.Sequence({
name: (names.blockName || "TimeStampReq"),
value: [
new asn1js.Integer({ name: (names.version || "TimeStampReq.version") }),
MessageImprint.schema(names.messageImprint || {
names: {
blockName: "TimeStampReq.messageImprint"
}
}),
new asn1js.ObjectIdentifier({
name: (names.reqPolicy || "TimeStampReq.reqPolicy"),
optional: true
}),
new asn1js.Integer({
name: (names.nonce || "TimeStampReq.nonce"),
optional: true
}),
new asn1js.Boolean({
name: (names.certReq || "TimeStampReq.certReq"),
optional: true
}),
new asn1js.Constructed({
optional: true,
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: [new asn1js.Repeated({
name: (names.extensions || "TimeStampReq.extensions"),
value: Extension.schema()
})]
}) // IMPLICIT SEQUENCE value
]
}));
}
//**********************************************************************************
/**
* Convert parsed asn1js object into current class
* @param {!Object} schema
*/
fromSchema(schema)
{
//region Check the schema is valid
const asn1 = asn1js.compareSchema(schema,
schema,
TimeStampReq.schema()
);
if(asn1.verified === false)
throw new Error("Object's schema was not verified against input data for TimeStampReq");
//endregion
//region Get internal properties from parsed schema
this.version = asn1.result["TimeStampReq.version"].valueBlock.valueDec;
this.messageImprint = new MessageImprint({ schema: asn1.result["TimeStampReq.messageImprint"] });
if("TimeStampReq.reqPolicy" in asn1.result)
this.reqPolicy = asn1.result["TimeStampReq.reqPolicy"].valueBlock.toString();
if("TimeStampReq.nonce" in asn1.result)
this.nonce = asn1.result["TimeStampReq.nonce"];
if("TimeStampReq.certReq" in asn1.result)
this.certReq = asn1.result["TimeStampReq.certReq"].valueBlock.value;
if("TimeStampReq.extensions" in asn1.result)
this.extensions = Array.from(asn1.result["TimeStampReq.extensions"], element => new Extension({ schema: element }));
//endregion
}
//**********************************************************************************
/**
* Convert current object to asn1js object and set correct values
* @returns {Object} asn1js object
*/
toSchema()
{
//region Create array for output sequence
const outputArray = [];
outputArray.push(new asn1js.Integer({ value: this.version }));
outputArray.push(this.messageImprint.toSchema());
if("reqPolicy" in this)
outputArray.push(new asn1js.ObjectIdentifier({ value: this.reqPolicy }));
if("nonce" in this)
outputArray.push(this.nonce);
if(("certReq" in this) && (TimeStampReq.compareWithDefault("certReq", this.certReq) === false))
outputArray.push(new asn1js.Boolean({ value: this.certReq }));
//region Create array of extensions
if("extensions" in this)
{
outputArray.push(new asn1js.Constructed({
idBlock: {
tagClass: 3, // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: Array.from(this.extensions, element => element.toSchema())
}));
}
//endregion
//endregion
//region Construct and return new ASN.1 schema for this object
return (new asn1js.Sequence({
value: outputArray
}));
//endregion
}
//**********************************************************************************
/**
* Convertion for the class to JSON object
* @returns {Object}
*/
toJSON()
{
const _object = {
version: this.version,
messageImprint: this.messageImprint.toJSON()
};
if("reqPolicy" in this)
_object.reqPolicy = this.reqPolicy;
if("nonce" in this)
_object.nonce = this.nonce.toJSON();
if(("certReq" in this) && (TimeStampReq.compareWithDefault("certReq", this.certReq) === false))
_object.certReq = this.certReq;
if("extensions" in this)
_object.extensions = Array.from(this.extensions, element => element.toJSON());
return _object;
}
//**********************************************************************************
}
//**************************************************************************************