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Software components for data protection, secure storage and transfer

TimeStamp

Also by EldoS: CallbackProcess
A component to control process creation and termination in Windows and .NET applications.
#10755
Posted: 08/07/2009 09:40:33
by Qualisoft CQPD (Standard support level)
Joined: 03/13/2007
Posts: 55

How can I add the timestamp:

id-aa-ets-contentTimeStamp
id-aa-signatureTimeStampToken
id-aa-archiveTimeStampToken

in ElCMSSignature class, AddTimeStamp and AddValidationTimeStamp methods?
Could you show me how it works?

thanks for help.
#10757
Posted: 08/07/2009 10:20:35
by Ken Ivanov (EldoS Corp.)

1. ContentTimeStamp is not supported internally at the moment. This type of timestamp can be added manually as a custom signed attribute. To calculate the timestamp, please do the following:
- calculate a hash of the message content,
- request a timestamp for this hash using one of the TSP client classes.

2. SignatureTimeStamp can be added to the signature using the AddTimestamp() method.

3. ArchiveTimeStamp can be added using the AddValidationTimestamp() method with TimestampType set to TSBCMSTimestampType.cvtArchive or TSBCMSTimestampType.cvtArchive2 (depending on the needed archive timestamp attribute version).
#10758
Posted: 08/07/2009 11:01:54
by Qualisoft CQPD (Standard support level)
Joined: 03/13/2007
Posts: 55

Thank you.

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