Bouncy Castle Cryptography Library 1.45

org.bouncycastle.tsp
Class TSPUtil

java.lang.Object
  extended by org.bouncycastle.tsp.TSPUtil

public class TSPUtil
extends java.lang.Object


Constructor Summary
TSPUtil()
           
 
Method Summary
static java.util.Collection getSignatureTimestamps(org.bouncycastle.cms.SignerInformation signerInfo, java.security.Provider provider)
          Fetches the signature time-stamp attributes from a SignerInformation object.
static void validateCertificate(java.security.cert.X509Certificate cert)
          Validate the passed in certificate as being of the correct type to be used for time stamping.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TSPUtil

public TSPUtil()
Method Detail

getSignatureTimestamps

public static java.util.Collection getSignatureTimestamps(org.bouncycastle.cms.SignerInformation signerInfo,
                                                          java.security.Provider provider)
                                                   throws TSPValidationException
Fetches the signature time-stamp attributes from a SignerInformation object. Checks that the MessageImprint for each time-stamp matches the signature field. (see RFC 3161 Appendix A).

Parameters:
signerInfo - a SignerInformation to search for time-stamps
provider - an optional provider to use to create MessageDigest instances
Returns:
a collection of TimeStampToken objects
Throws:
TSPValidationException

validateCertificate

public static void validateCertificate(java.security.cert.X509Certificate cert)
                                throws TSPValidationException
Validate the passed in certificate as being of the correct type to be used for time stamping. To be valid it must have an ExtendedKeyUsage extension which has a key purpose identifier of id-kp-timeStamping.

Parameters:
cert - the certificate of interest.
Throws:
TSPValidationException - if the certicate fails on one of the check points.

Bouncy Castle Cryptography Library 1.45