timestamp package - github.com/digitorus/timestamp

timestamp package - github.com/digitorus/timestamp - Go Packages

Package timestamp implements the Time-Stamp Protocol (TSP) as specified in RFC3161 (Internet X.509 Public Key Infrastructure Time-Stamp Protocol (TSP)).

This section is empty.

func CreateErrorResponse(pkiStatus Status, pkiFailureInfo FailureInfo) ([]byte, error)

CreateErrorResponse is used to create response other than granted and granted with mod status

CreateRequest returns a DER-encoded, timestamp request for the status of cert. If opts is nil then sensible defaults are used.

ExampleCreateRequest demonstrates how to create a new time-stamping request for an io.Reader.

_, err := CreateRequest(strings.NewReader("Content to be time-stamped"), nil)
if err != nil {
	panic(err)
}

ExampleCreateRequest_customHashingAlgorithm demonstrates how to create a new time-stamping request with options

_, err := CreateRequest(
	strings.NewReader("Content to be time-stamped"),
	&RequestOptions{
		Hash: crypto.SHA512,
	})
if err != nil {
	panic(err)
}

FailureInfo contains the failure details of an Time-Stamp request. See https://tools.ietf.org/html/rfc3161#section-2.4.2

const (
	
	UnknownFailureInfo FailureInfo = -1
	
	BadAlgorithm FailureInfo = 0
	
	BadRequest FailureInfo = 2
	
	BadDataFormat FailureInfo = 5
	
	TimeNotAvailable FailureInfo = 14
	
	
	UnacceptedPolicy FailureInfo = 15
	
	
	UnacceptedExtension FailureInfo = 16
	
	
	AddInfoNotAvailable FailureInfo = 17
	
	
	SystemFailure FailureInfo = 25
)

ParseError results from an invalid Time-Stamp request or response.

Request represents an Time-Stamp request. See https://tools.ietf.org/html/rfc3161#section-2.4.1

ParseRequest parses an timestamp request in DER form.

ExampleParseRequest demonstrates how to parse a raw der time-stamping request

// CreateRequest returns the request in der bytes
createdRequest, err := CreateRequest(strings.NewReader("Content to be time-stamped"), nil)
if err != nil {
	panic(err)
}

// ParseRequest parses a request in der bytes
parsedRequest, err := ParseRequest(createdRequest)
if err != nil {
	panic(err)
}

fmt.Printf("%x\n", parsedRequest.HashedMessage)

Output:

51a3620a3b62ffaff41a434e932223b31bc69e86490c365fa1186033904f1132

Marshal marshals the Time-Stamp request to ASN.1 DER encoded form.

RequestOptions contains options for constructing timestamp requests.

Timestamp represents an Time-Stamp. See: https://tools.ietf.org/html/rfc3161#section-2.4.1

Parse parses an Time-Stamp in DER form. If the time-stamp contains a certificate then the signature over the response is checked.

Invalid signatures or parse failures will result in a ParseError. Error responses will result in a ResponseError.

ParseResponse parses an Time-Stamp response in DER form containing a TimeStampToken.

Invalid signatures or parse failures will result in a ParseError. Error responses will result in a ResponseError.

CreateResponse returns a DER-encoded timestamp response with the specified contents. The fields in the response are populated as follows:

The responder cert is used to populate the responder's name field, and the certificate itself is provided alongside the timestamp response signature.

This function is equivalent to CreateResponseWithOpts, using a SHA256 hash.

Deprecated: Use CreateResponseWithOpts instead.

CreateResponseWithOpts returns a DER-encoded timestamp response with the specified contents. The fields in the response are populated as follows:

The responder cert is used to populate the responder's name field, and the certificate itself is provided alongside the timestamp response signature.