Class: TimeStampResp

Represents the TimeStampResp structure described in RFC3161

Example

The following example demonstrates how to create and sign Time-Stamp Response

// Generate random serial number
const serialNumber = pkijs.getRandomValues(new Uint8Array(10)).buffer;

// Create specific TST info structure to sign
const tstInfo = new pkijs.TSTInfo({
  version: 1,
  policy: tspReq.reqPolicy,
  messageImprint: tspReq.messageImprint,
  serialNumber: new asn1js.Integer({ valueHex: serialNumber }),
  genTime: new Date(),
  ordering: true,
  accuracy: new pkijs.Accuracy({
    seconds: 1,
    millis: 1,
    micros: 10
  }),
  nonce: tspReq.nonce,
});

// Create and sign CMS Signed Data with TSTInfo
const cmsSigned = new pkijs.SignedData({
  version: 3,
  encapContentInfo: new pkijs.EncapsulatedContentInfo({
    eContentType: "1.2.840.113549.1.9.16.1.4", // "tSTInfo" content type
    eContent: new asn1js.OctetString({ valueHex: tstInfo.toSchema().toBER() }),
  }),
  signerInfos: [
    new pkijs.SignerInfo({
      version: 1,
      sid: new pkijs.IssuerAndSerialNumber({
        issuer: cert.issuer,
        serialNumber: cert.serialNumber
      })
    })
  ],
  certificates: [cert]
});

await cmsSigned.sign(keys.privateKey, 0, "SHA-256");

// Create CMS Content Info
const cmsContent = new pkijs.ContentInfo({
  contentType: pkijs.ContentInfo.SIGNED_DATA,
  content: cmsSigned.toSchema(true)
});

// Finally create completed TSP response structure
const tspResp = new pkijs.TimeStampResp({
  status: new pkijs.PKIStatusInfo({ status: pkijs.PKIStatus.granted }),
  timeStampToken: new pkijs.ContentInfo({ schema: cmsContent.toSchema() })
});

const tspRespRaw = tspResp.toSchema().toBER();

Hierarchy

• PkiObject

  ↳ TimeStampResp

Implements

• ITimeStampResp

Constructors

constructor

• new TimeStampResp(parameters?): TimeStampResp

Initializes a new instance of the TimeStampResp class

Parameters

Name	Type	Description
parameters	TimeStampRespParameters	Initialization parameters

Returns

TimeStampResp

Overrides

PkiObject.constructor

Properties

status

• status: PKIStatusInfo

Time-Stamp status

Implementation of

ITimeStampResp.status

---

timeStampToken

• Optional timeStampToken: ContentInfo

Time-Stamp token

Implementation of

ITimeStampResp.timeStampToken

---

CLASS_NAME

▪ Static CLASS_NAME: string = "TimeStampResp"

Name of the class

Overrides

PkiObject.CLASS_NAME

Accessors

className

• get className(): string

Returns

string

Inherited from

PkiObject.className

Methods

assertContentType

▸ assertContentType(): asserts this is Object

Returns

asserts this is Object

---

fromSchema

▸ fromSchema(schema): void

Converts parsed ASN.1 object into current class

Parameters

Name	Type	Description
schema	any	ASN.1 schema

Returns

void

Overrides

PkiObject.fromSchema

---

sign

▸ sign(privateKey, hashAlgorithm?, crypto?): Promise<void>

Sign current TSP Response

Parameters

Name	Type	Description
privateKey	CryptoKey	Private key for "subjectPublicKeyInfo" structure
hashAlgorithm?	string	Hashing algorithm. Default SHA-1
crypto	ICryptoEngine	Crypto engine

Returns

Promise<void>

---

toJSON

▸ toJSON(): TimeStampRespJson

Converts the class to JSON object

Returns

TimeStampRespJson

JSON object

Overrides

PkiObject.toJSON

---

toSchema

▸ toSchema(): Sequence

Converts current object to ASN.1 object and sets correct values

Returns

Sequence

ASN.1 object

Overrides

PkiObject.toSchema

---

toString

▸ toString(encoding?): string

Parameters

Name	Type	Default value
encoding	"base64" | "base64url" | "hex"	"hex"

Returns

string

Inherited from

PkiObject.toString

---

verify

▸ verify(verificationParameters?, crypto?): Promise<boolean>

Verify current TSP Response

Parameters

Name	Type	Description
verificationParameters	TimeStampRespVerifyParams	Input parameters for verification
crypto	ICryptoEngine	Crypto engine

Returns

Promise<boolean>

---

blockName

▸ blockName(): string

Returns block name

Returns

string

Returns string block name

Inherited from

PkiObject.blockName

---

compareWithDefault

▸ compareWithDefault(memberName, memberValue): boolean

Compare values with default values for all class members

Parameters

Name	Type	Description
memberName	string	String name for a class member
memberValue	any	Value to compare with default value

Returns

boolean

---

defaultValues

▸ defaultValues(memberName): PKIStatusInfo

Returns default values for all class members

Parameters

Name	Type	Description
memberName	"status"	String name for a class member

Returns

PKIStatusInfo

Default value

Overrides

PkiObject.defaultValues

▸ defaultValues(memberName): ContentInfo

Parameters

Name	Type
memberName	"timeStampToken"

Returns

ContentInfo

Overrides

PkiObject.defaultValues

---

fromBER

▸ fromBER<T>(this, raw): T

Creates PKI object from the raw data

Type parameters

Name	Type
T	extends PkiObject

Parameters

Name	Type	Description
this	PkiObjectConstructor<T>	-
raw	BufferSource	ASN.1 encoded raw data

Returns

T

Initialized and filled current class object

Inherited from

PkiObject.fromBER

---

schema

▸ schema(parameters?): any

Returns value of pre-defined ASN.1 schema for current class

Parameters

Name	Type	Description
parameters	SchemaParameters<{ status?: PKIStatusInfoSchema ; timeStampToken?: ContentInfoSchema }>	Input parameters for the schema

Returns

any

ASN.1 schema object

Overrides

PkiObject.schema