org.spongycastle.tsp

Class TimeStampResponseGenerator

java.lang.Object

org.spongycastle.tsp.TimeStampResponseGenerator

public class TimeStampResponseGenerator
extends java.lang.Object

Generator for RFC 3161 Time Stamp Responses.

New generate methods have been introduced to give people more control over what ends up in the message. Unfortunately it turns out that in some cases fields like statusString must be left out otherwise a an otherwise valid timestamp will be rejected.

If you're after the most control with generating a response use:

    TimeStampResponse tsResp;

    try
    {
       tsResp = tsRespGen.generateGrantedResponse(request, new BigInteger("23"), new Date());
    }
    catch (Exception e)
    {
        tsResp = tsRespGen.generateRejectedResponse(e);
    }
 

The generate method does this, but provides a status string of "Operation Okay".

It should be pointed out that generateRejectedResponse() may also, on very rare occasions throw a TSPException. In the event that happens, there's a serious internal problem with your responder.

Constructor Summary

Constructors

Constructor and Description
TimeStampResponseGenerator(TimeStampTokenGenerator tokenGenerator, java.util.Set acceptedAlgorithms)
TimeStampResponseGenerator(TimeStampTokenGenerator tokenGenerator, java.util.Set acceptedAlgorithms, java.util.Set acceptedPolicies)
TimeStampResponseGenerator(TimeStampTokenGenerator tokenGenerator, java.util.Set acceptedAlgorithms, java.util.Set acceptedPolicies, java.util.Set acceptedExtensions)

Method Summary

Modifier and Type	Method and Description
TimeStampResponse	generate(TimeStampRequest request, java.math.BigInteger serialNumber, java.util.Date genTime) Return an appropriate TimeStampResponse.
TimeStampResponse	generateFailResponse(int status, int failInfoField, java.lang.String statusString) Generate a non-granted TimeStampResponse with chosen status and FailInfoField.
TimeStampResponse	generateGrantedResponse(TimeStampRequest request, java.math.BigInteger serialNumber, java.util.Date genTime) Return a granted response, if the passed in request passes validation.
TimeStampResponse	generateGrantedResponse(TimeStampRequest request, java.math.BigInteger serialNumber, java.util.Date genTime, java.lang.String statusString) Return a granted response, if the passed in request passes validation with the passed in status string.
TimeStampResponse	generateGrantedResponse(TimeStampRequest request, java.math.BigInteger serialNumber, java.util.Date genTime, java.lang.String statusString, org.spongycastle.asn1.x509.Extensions additionalExtensions) Return a granted response, if the passed in request passes validation with the passed in status string and extra extensions.
TimeStampResponse	generateRejectedResponse(java.lang.Exception exception) Generate a generic rejection response based on a TSPValidationException or an Exception.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimeStampResponseGenerator

public TimeStampResponseGenerator(TimeStampTokenGenerator tokenGenerator,
                                  java.util.Set acceptedAlgorithms)

Parameters:

tokenGenerator -

acceptedAlgorithms - a set of OIDs giving accepted algorithms.

TimeStampResponseGenerator

public TimeStampResponseGenerator(TimeStampTokenGenerator tokenGenerator,
                                  java.util.Set acceptedAlgorithms,
                                  java.util.Set acceptedPolicies)

Parameters:

tokenGenerator -

acceptedAlgorithms - a set of OIDs giving accepted algorithms.

acceptedPolicies - if non-null a set of policies OIDs we are willing to sign under.

TimeStampResponseGenerator

public TimeStampResponseGenerator(TimeStampTokenGenerator tokenGenerator,
                                  java.util.Set acceptedAlgorithms,
                                  java.util.Set acceptedPolicies,
                                  java.util.Set acceptedExtensions)

Parameters:

tokenGenerator -

acceptedAlgorithms - a set of OIDs giving accepted algorithms.

acceptedPolicies - if non-null a set of policies OIDs we are willing to sign under.

acceptedExtensions - if non-null a set of extensions OIDs we are willing to accept.

Method Detail

generate

public TimeStampResponse generate(TimeStampRequest request,
                                  java.math.BigInteger serialNumber,
                                  java.util.Date genTime)
                           throws TSPException

Return an appropriate TimeStampResponse.

If genTime is null a timeNotAvailable error response will be returned. Calling generate() is the equivalent of:

    TimeStampResponse tsResp;

    try
    {
       tsResp = tsRespGen.generateGrantedResponse(request, serialNumber, genTime, "Operation Okay");
    }
    catch (Exception e)
    {
        tsResp = tsRespGen.generateRejectedResponse(e);
    }
 

Parameters:

request - the request this response is for.

serialNumber - serial number for the response token.

genTime - generation time for the response token.

Returns:

a TimeStampResponse.

Throws:

TSPException

generateGrantedResponse

public TimeStampResponse generateGrantedResponse(TimeStampRequest request,
                                                 java.math.BigInteger serialNumber,
                                                 java.util.Date genTime)
                                          throws TSPException

Return a granted response, if the passed in request passes validation.

If genTime is null a timeNotAvailable or a validation exception occurs a TSPValidationException will be thrown. The parent TSPException will only occur on some sort of system failure.

Parameters:

request - the request this response is for.

serialNumber - serial number for the response token.

genTime - generation time for the response token.

Returns:

the TimeStampResponse with a status of PKIStatus.GRANTED

Throws:

TSPException - on validation exception or internal error.

generateGrantedResponse

public TimeStampResponse generateGrantedResponse(TimeStampRequest request,
                                                 java.math.BigInteger serialNumber,
                                                 java.util.Date genTime,
                                                 java.lang.String statusString)
                                          throws TSPException

Return a granted response, if the passed in request passes validation with the passed in status string.

If genTime is null a timeNotAvailable or a validation exception occurs a TSPValidationException will be thrown. The parent TSPException will only occur on some sort of system failure.

Parameters:

request - the request this response is for.

serialNumber - serial number for the response token.

genTime - generation time for the response token.

Returns:

the TimeStampResponse with a status of PKIStatus.GRANTED

Throws:

TSPException - on validation exception or internal error.

generateGrantedResponse

public TimeStampResponse generateGrantedResponse(TimeStampRequest request,
                                                 java.math.BigInteger serialNumber,
                                                 java.util.Date genTime,
                                                 java.lang.String statusString,
                                                 org.spongycastle.asn1.x509.Extensions additionalExtensions)
                                          throws TSPException

Return a granted response, if the passed in request passes validation with the passed in status string and extra extensions.

If genTime is null a timeNotAvailable or a validation exception occurs a TSPValidationException will be thrown. The parent TSPException will only occur on some sort of system failure.

Parameters:

request - the request this response is for.

serialNumber - serial number for the response token.

genTime - generation time for the response token.

additionalExtensions - extra extensions to be added to the response token.

Returns:

the TimeStampResponse with a status of PKIStatus.GRANTED

Throws:

TSPException - on validation exception or internal error.

generateRejectedResponse

public TimeStampResponse generateRejectedResponse(java.lang.Exception exception)
                                           throws TSPException

Generate a generic rejection response based on a TSPValidationException or an Exception. Exceptions which are not an instance of TSPValidationException will be treated as systemFailure. The return value of exception.getMessage() will be used as the status string for the response.

Parameters:

exception - the exception thrown on validating the request.

Returns:

a TimeStampResponse.

Throws:

TSPException - if a failure response cannot be generated.

generateFailResponse

public TimeStampResponse generateFailResponse(int status,
                                              int failInfoField,
                                              java.lang.String statusString)
                                       throws TSPException

Generate a non-granted TimeStampResponse with chosen status and FailInfoField.

Parameters:

status - the PKIStatus to set.

failInfoField - the FailInfoField to set.

statusString - an optional string describing the failure.

Returns:

a TimeStampResponse with a failInfoField and optional statusString

Throws:

TSPException - in case the response could not be created