LTANS WG meeting 11/7/2005
Approximately 20 people attended the meeting

Intro (slides: 1 - LTANS.ppt)

The introduction consisted of a review of activities since the Paris meeting and a review of what needs to happen between now and the Dallas meeting.
Two revised drafts were posted since Paris and 1 new draft was posted.  A new version of ERS was circulated shortly before the meeting today.
Ideally, ERS will enter WG last call in later in November.  It was noted that an approach for LTAP as well as preservation of artifacts required to verify EvidenceRecords must be decided upon.  

Notary requirements (slides: 2 - ltans-notary-req-review.pdf)

Wolfgang Schneider led a discussion on the notarization requirements.  The current requirements are very generic and need to be made more concrete.
Document transformations are a fundamental concern.  The goal is to ensure that transformed documents maintain the same semantics as the original and to provide assertions to this fact.  The requirements are lacking in specifics on roles and processes required to attest to document equivalence.
The current data integrity requirements may be sufficient.  The requirements are lacking in the area of accountability, e.g., logging.  Data structures must be defined to establish the context in which document equivalence was determined.  

The next steps will be to update the requirements document to establish more concrete requirements and to release a specification describing data structures that satisfy those requirements.  Wolfgang indicated that Andreas is working with Tobias and Larry on the revised document.  No questions or comments were raised during the presentation.

SCVP/ERS I-D (slides: 3 - Using SCVP to Convey Evidence Records.ppt)

The concept underlying the "Using SCVP to Convey Evidence Records" draft was described.  Several issues were presented.  No questions or comments were raised during the presentation.  Results of a sidebar discussion after the meeting were posted to the mailing list.

ERS (slides: 4 - ERS.ppt and 4a - ltans-ers.ppt)

Two sets of slides were presented discussing the current ERS status.  A new draft was released a few hours before the meeting to address several comments made on the mailing list including modifications to the ASN.1 module and clarification of some language throughout the doc (e.g., capitalizing some MUSTs and SHOULDs).  References to X9.95 and ISO timestamp specifications were added to the document to permit usage of timestamps other than RFC3161 timestamps.

Tobias would like to progress ERS to last call during November.  A few issues potentially related to ERS were raised and should be further discussed on the list (e.g., lack of extensibility mechanisms and lack of means to convey policy information).  No questions or comments were raised during the presentation.

Shoring up hash algorithms (slides: 5 - hash-ltans.ppt)

Slides further describing Santosh's recent email to the list describing an approach to strengthen usage of hash algorithms were presented.  The applicability of these techniques and other randomized hash techniques to the long-term archive problem should be explored.  For some types of documents, application of these techniques may obviate the need to perform periodic preservation activities.  No questions or comments were raised during the presentation.

Wrap-up
Action items are as follows:

	Andreas, Larry and Tobias: revise notary requirements document
	Wolfgang, Andreas: prepare and circulate specification describing data structures to satisfy notary requirements
	Peter, Aleksej, Carl: prepare and circulate concrete LTAP specification
	Group: review SCVP/ERS draft and determine if it should be carried forward as a WG draft
	Group: review -04 draft of ERS in preparation for last call
	Tobias, Ulrich, Ralf: Response to group comments during ERS last call