import * as asn1js from "asn1js" ;
import * as pvtsutils from "pvtsutils" ;
import * as pvutils from "pvutils" ;
import * as common from "./common" ;
import { MessageImprint, HASHED_MESSAGE, HASH_ALGORITHM, MessageImprintSchema, MessageImprintJson } from "./MessageImprint" ;
import { Accuracy, AccuracyJson, AccuracySchema, MICROS, MILLIS, SECONDS } from "./Accuracy" ;
import { GeneralName, GeneralNameJson, GeneralNameSchema, TYPE, VALUE } from "./GeneralName" ;
import { Extension, ExtensionJson, ExtensionSchema } from "./Extension" ;
import * as Schema from "./Schema" ;
import { PkiObject, PkiObjectParameters } from "./PkiObject" ;
import { AsnError } from "./errors" ;
import { EMPTY_STRING } from "./constants" ;
const VERSION = "version" ;
const POLICY = "policy" ;
const MESSAGE_IMPRINT = "messageImprint" ;
const SERIAL_NUMBER = "serialNumber" ;
const GEN_TIME = "genTime" ;
const ORDERING = "ordering" ;
const NONCE = "nonce" ;
const ACCURACY = "accuracy" ;
const TSA = "tsa" ;
const EXTENSIONS = "extensions" ;
const TST_INFO = "TSTInfo" ;
const TST_INFO_VERSION = `${TST_INFO}.${VERSION}`;
const TST_INFO_POLICY = `${TST_INFO}.${POLICY}`;
const TST_INFO_MESSAGE_IMPRINT = `${TST_INFO}.${MESSAGE_IMPRINT}`;
const TST_INFO_SERIAL_NUMBER = `${TST_INFO}.${SERIAL_NUMBER}`;
const TST_INFO_GEN_TIME = `${TST_INFO}.${GEN_TIME}`;
const TST_INFO_ACCURACY = `${TST_INFO}.${ACCURACY}`;
const TST_INFO_ORDERING = `${TST_INFO}.${ORDERING}`;
const TST_INFO_NONCE = `${TST_INFO}.${NONCE}`;
const TST_INFO_TSA = `${TST_INFO}.${TSA}`;
const TST_INFO_EXTENSIONS = `${TST_INFO}.${EXTENSIONS}`;
const CLEAR_PROPS = [
TST_INFO_VERSION,
TST_INFO_POLICY,
TST_INFO_MESSAGE_IMPRINT,
TST_INFO_SERIAL_NUMBER,
TST_INFO_GEN_TIME,
TST_INFO_ACCURACY,
TST_INFO_ORDERING,
TST_INFO_NONCE,
TST_INFO_TSA,
TST_INFO_EXTENSIONS
];
export interface ITSTInfo {
/**
* Version of the time - stamp token .
*
* Conforming time - stamping servers MUST be able to provide version 1 time - stamp tokens .
*/
version: number;
/**
* TSA ' s policy under which the response was produced .
*
* If a similar field was present in the TimeStampReq , then it MUST have the same value ,
* otherwise an error ( unacceptedPolicy ) MUST be returned
*/
policy: string;
/**
* The messageImprint MUST have the same value as the similar field in
* TimeStampReq , provided that the size of the hash value matches the
* expected size of the hash algorithm identified in hashAlgorithm .
*/
messageImprint: MessageImprint;
/**
* Integer assigned by the TSA to each TimeStampToken .
*
* It MUST be unique for each TimeStampToken issued by a given TSA .
*/
serialNumber: asn1js.Integer;
/**
* Time at which the time - stamp token has been created by the TSA
*/
genTime: Date;
/**
* Represents the time deviation around the UTC time contained in GeneralizedTime
*/
accuracy?: Accuracy;
/**
* If the ordering field is missing , or if the ordering field is present
* and set to false , then the genTime field only indicates the time at
* which the time - stamp token has been created by the TSA . In such a
* case , the ordering of time - stamp tokens issued by the same TSA or
* different TSAs is only possible when the difference between the
* genTime of the first time - stamp token and the genTime of the second
* time - stamp token is greater than the sum of the accuracies of the
* genTime for each time - stamp token .
*
* If the ordering field is present and set to true , every time - stamp
* token from the same TSA can always be ordered based on the genTime
* field , regardless of the genTime accuracy .
*/
ordering?: boolean ;
/**
* Field MUST be present if it was present in the TimeStampReq .
* In such a case it MUST equal the value provided in the TimeStampReq structure .
*/
nonce?: asn1js.Integer;
/**
* ` tsa ` field is to give a hint in identifying the name of the TSA .
* If present , it MUST correspond to one of the subject names included
* in the certificate that is to be used to verify the token .
*/
tsa?: GeneralName;
/**
* Additional information in the future . Extensions is defined in [ RFC2459 ] ( https : //datatracker.ietf.org/doc/html/rfc2459)
*/
extensions?: Extension[];
}
export interface TSTInfoJson {
version: number;
policy: string;
messageImprint: MessageImprintJson;
serialNumber: asn1js.IntegerJson;
genTime: Date;
accuracy?: AccuracyJson;
ordering?: boolean ;
nonce?: asn1js.IntegerJson;
tsa?: GeneralNameJson;
extensions?: ExtensionJson[];
}
export type TSTInfoParameters = PkiObjectParameters & Partial<ITSTInfo>;
export interface TSTInfoVerifyParams {
data: ArrayBuffer;
notBefore?: Date;
notAfter?: Date;
}
/**
* Represents the TSTInfo structure described in [ RFC3161 ] ( https : //www.ietf.org/rfc/rfc3161.txt)
*/
export class TSTInfo extends PkiObject implements ITSTInfo {
public static override CLASS_NAME = "TSTInfo" ;
public version!: number;
public policy!: string;
public messageImprint!: MessageImprint;
public serialNumber!: asn1js.Integer;
public genTime!: Date;
public accuracy?: Accuracy;
public ordering?: boolean ;
public nonce?: asn1js.Integer;
public tsa?: GeneralName;
public extensions?: Extension[];
/**
* Initializes a new instance of the { @ link TSTInfo } class
* @ param parameters Initialization parameters
*/
constructor(parameters: TSTInfoParameters = {}) {
super ();
this .version = pvutils.getParametersValue(parameters, VERSION, TSTInfo.defaultValues(VERSION));
this .policy = pvutils.getParametersValue(parameters, POLICY, TSTInfo.defaultValues(POLICY));
this .messageImprint = pvutils.getParametersValue(parameters, MESSAGE_IMPRINT, TSTInfo.defaultValues(MESSAGE_IMPRINT));
this .serialNumber = pvutils.getParametersValue(parameters, SERIAL_NUMBER, TSTInfo.defaultValues(SERIAL_NUMBER));
this .genTime = pvutils.getParametersValue(parameters, GEN_TIME, TSTInfo.defaultValues(GEN_TIME));
if (ACCURACY in parameters) {
this .accuracy = pvutils.getParametersValue(parameters, ACCURACY, TSTInfo.defaultValues(ACCURACY));
}
if (ORDERING in parameters) {
this .ordering = pvutils.getParametersValue(parameters, ORDERING, TSTInfo.defaultValues(ORDERING));
}
if (NONCE in parameters) {
this .nonce = pvutils.getParametersValue(parameters, NONCE, TSTInfo.defaultValues(NONCE));
}
if (TSA in parameters) {
this .tsa = pvutils.getParametersValue(parameters, TSA, TSTInfo.defaultValues(TSA));
}
if (EXTENSIONS in parameters) {
this .extensions = pvutils.getParametersValue(parameters, EXTENSIONS, TSTInfo.defaultValues(EXTENSIONS));
}
if (parameters.schema) {
this .fromSchema(parameters.schema);
}
}
/**
* Returns default values for all class members
* @ param memberName String name for a class member
* @ returns Default value
*/
public static override defaultValues(memberName: typeof VERSION): number;
public static override defaultValues(memberName: typeof POLICY): string;
public static override defaultValues(memberName: typeof MESSAGE_IMPRINT): MessageImprint;
public static override defaultValues(memberName: typeof SERIAL_NUMBER): asn1js.Integer;
public static override defaultValues(memberName: typeof GEN_TIME): Date;
public static override defaultValues(memberName: typeof ACCURACY): Accuracy;
public static override defaultValues(memberName: typeof ORDERING): boolean ;
public static override defaultValues(memberName: typeof NONCE): asn1js.Integer;
public static override defaultValues(memberName: typeof TSA): GeneralName;
public static override defaultValues(memberName: typeof EXTENSIONS): Extension[];
public static override defaultValues(memberName: string): any {
switch (memberName) {
case VERSION:
return 0 ;
case POLICY:
return EMPTY_STRING;
case MESSAGE_IMPRINT:
return new MessageImprint();
case SERIAL_NUMBER:
return new asn1js.Integer();
case GEN_TIME:
return new Date(0 , 0 , 0 );
case ACCURACY:
return new Accuracy();
case ORDERING:
return false ;
case NONCE:
return new asn1js.Integer();
case TSA:
return new GeneralName();
case EXTENSIONS:
return [];
default :
return super .defaultValues(memberName);
}
}
/**
* Compare values with default values for all class members
* @ param memberName String name for a class member
* @ param memberValue Value to compare with default value
*/
public static compareWithDefault(memberName: string, memberValue: any): boolean {
switch (memberName) {
case VERSION:
case POLICY:
case GEN_TIME:
case ORDERING:
return (memberValue === TSTInfo.defaultValues(ORDERING));
case MESSAGE_IMPRINT:
return ((MessageImprint.compareWithDefault(HASH_ALGORITHM, memberValue.hashAlgorithm)) &&
(MessageImprint.compareWithDefault(HASHED_MESSAGE, memberValue.hashedMessage)));
case SERIAL_NUMBER:
case NONCE:
return (memberValue.isEqual(TSTInfo.defaultValues(NONCE)));
case ACCURACY:
return ((Accuracy.compareWithDefault(SECONDS, memberValue.seconds)) &&
(Accuracy.compareWithDefault(MILLIS, memberValue.millis)) &&
(Accuracy.compareWithDefault(MICROS, memberValue.micros)));
case TSA:
return ((GeneralName.compareWithDefault(TYPE, memberValue.type)) &&
(GeneralName.compareWithDefault(VALUE, memberValue.value)));
case EXTENSIONS:
return (memberValue.length === 0 );
default :
return super .defaultValues(memberName);
}
}
/**
* @ inheritdoc
* @ asn ASN . 1 schema
* ` ` ` asn
* TSTInfo : : = SEQUENCE {
* version INTEGER { v1 ( 1 ) } ,
* policy TSAPolicyId ,
* messageImprint MessageImprint ,
* serialNumber INTEGER ,
* genTime GeneralizedTime ,
* accuracy Accuracy OPTIONAL ,
* ordering BOOLEAN DEFAULT FALSE ,
* nonce INTEGER OPTIONAL ,
* tsa [ 0 ] GeneralName OPTIONAL ,
* extensions [ 1 ] IMPLICIT Extensions OPTIONAL }
* ` ` `
*/
public static override schema(parameters: Schema.SchemaParameters<{
version?: string;
policy?: string;
messageImprint?: MessageImprintSchema;
serialNumber?: string;
genTime?: string;
accuracy?: AccuracySchema;
ordering?: string;
nonce?: string;
tsa?: GeneralNameSchema;
extensions?: string;
extension?: ExtensionSchema;
}> = {}): Schema.SchemaType {
const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names" , {});
return (new asn1js.Sequence({
name: (names.blockName || TST_INFO),
value: [
new asn1js.Integer({ name: (names.version || TST_INFO_VERSION) }),
new asn1js.ObjectIdentifier({ name: (names.policy || TST_INFO_POLICY) }),
MessageImprint.schema(names.messageImprint || {
names: {
blockName: TST_INFO_MESSAGE_IMPRINT
}
}),
new asn1js.Integer({ name: (names.serialNumber || TST_INFO_SERIAL_NUMBER) }),
new asn1js.GeneralizedTime({ name: (names.genTime || TST_INFO_GEN_TIME) }),
Accuracy.schema(names.accuracy || {
names: {
blockName: TST_INFO_ACCURACY
}
}),
new asn1js.Boolean ({
name: (names.ordering || TST_INFO_ORDERING),
optional: true
}),
new asn1js.Integer({
name: (names.nonce || TST_INFO_NONCE),
optional: true
}),
new asn1js.Constructed({
optional: true ,
idBlock: {
tagClass: 3 , // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: [GeneralName.schema(names.tsa || {
names: {
blockName: TST_INFO_TSA
}
})]
}),
new asn1js.Constructed({
optional: true ,
idBlock: {
tagClass: 3 , // CONTEXT-SPECIFIC
tagNumber: 1 // [1]
},
value: [
new asn1js.Repeated({
name: (names.extensions || TST_INFO_EXTENSIONS),
value: Extension.schema(names.extension || {})
})
]
}) // IMPLICIT Extensions
]
}));
}
public fromSchema(schema: Schema.SchemaType): void {
// Clear input data first
pvutils.clearProps(schema, CLEAR_PROPS);
// Check the schema is valid
const asn1 = asn1js.compareSchema(schema,
schema,
TSTInfo.schema()
);
AsnError.assertSchema(asn1, this .className);
// Get internal properties from parsed schema
this .version = asn1.result[TST_INFO_VERSION].valueBlock.valueDec;
this .policy = asn1.result[TST_INFO_POLICY].valueBlock.toString();
this .messageImprint = new MessageImprint({ schema: asn1.result[TST_INFO_MESSAGE_IMPRINT] });
this .serialNumber = asn1.result[TST_INFO_SERIAL_NUMBER];
this .genTime = asn1.result[TST_INFO_GEN_TIME].toDate();
if (TST_INFO_ACCURACY in asn1.result)
this .accuracy = new Accuracy({ schema: asn1.result[TST_INFO_ACCURACY] });
if (TST_INFO_ORDERING in asn1.result)
this .ordering = asn1.result[TST_INFO_ORDERING].valueBlock.value;
if (TST_INFO_NONCE in asn1.result)
this .nonce = asn1.result[TST_INFO_NONCE];
if (TST_INFO_TSA in asn1.result)
this .tsa = new GeneralName({ schema: asn1.result[TST_INFO_TSA] });
if (TST_INFO_EXTENSIONS in asn1.result)
this .extensions = Array.from(asn1.result[TST_INFO_EXTENSIONS], element => new Extension({ schema: element }));
}
public toSchema(): asn1js.Sequence {
//#region Create array for output sequence
const outputArray = [];
outputArray.push(new asn1js.Integer({ value: this .version }));
outputArray.push(new asn1js.ObjectIdentifier({ value: this .policy }));
outputArray.push(this .messageImprint.toSchema());
outputArray.push(this .serialNumber);
outputArray.push(new asn1js.GeneralizedTime({ valueDate: this .genTime }));
if (this .accuracy)
outputArray.push(this .accuracy.toSchema());
if (this .ordering !== undefined)
outputArray.push(new asn1js.Boolean ({ value: this .ordering }));
if (this .nonce)
outputArray.push(this .nonce);
if (this .tsa) {
outputArray.push(new asn1js.Constructed({
optional: true ,
idBlock: {
tagClass: 3 , // CONTEXT-SPECIFIC
tagNumber: 0 // [0]
},
value: [this .tsa.toSchema()]
}));
}
//#region Create array of extensions
if (this .extensions) {
outputArray.push(new asn1js.Constructed({
optional: true ,
idBlock: {
tagClass: 3 , // CONTEXT-SPECIFIC
tagNumber: 1 // [1]
},
value: Array.from(this .extensions, o => o.toSchema())
}));
}
//#endregion
//#endregion
//#region Construct and return new ASN.1 schema for this object
return (new asn1js.Sequence({
value: outputArray
}));
//#endregion
}
public toJSON(): TSTInfoJson {
const res: TSTInfoJson = {
version: this .version,
policy: this .policy,
messageImprint: this .messageImprint.toJSON(),
serialNumber: this .serialNumber.toJSON(),
genTime: this .genTime
};
if (this .accuracy)
res.accuracy = this .accuracy.toJSON();
if (this .ordering !== undefined)
res.ordering = this .ordering;
if (this .nonce)
res.nonce = this .nonce.toJSON();
if (this .tsa)
res.tsa = this .tsa.toJSON();
if (this .extensions)
res.extensions = Array.from(this .extensions, o => o.toJSON());
return res;
}
/**
* Verify current TST Info value
* @ param params Input parameters
* @ param crypto Crypto engine
*/
public async verify(params: TSTInfoVerifyParams, crypto = common.getCrypto(true )): Promise<boolean > {
//#region Get initial parameters
if (!params.data) {
throw new Error("\" data\" is a mandatory attribute for TST_INFO verification" );
}
const data = params.data;
//#endregion
//#region Check date
if (params.notBefore) {
if (this .genTime < params.notBefore)
throw new Error("Generation time for TSTInfo object is less than notBefore value" );
}
if (params.notAfter) {
if (this .genTime > params.notAfter)
throw new Error("Generation time for TSTInfo object is more than notAfter value" );
}
//#endregion
// Find hashing algorithm
const shaAlgorithm = crypto.getAlgorithmByOID(this .messageImprint.hashAlgorithm.algorithmId, true , "MessageImprint.hashAlgorithm" );
// Calculate message digest for input "data" buffer
const hash = await crypto.digest(shaAlgorithm.name, new Uint8Array(data));
return pvtsutils.BufferSourceConverter.isEqual(hash, this .messageImprint.hashedMessage.valueBlock.valueHexView);
}
}
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