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LTAP presentation. Peter Sylvester EdelWeb Peter.sylvester@edelweb.fr. LTAP layering. We don’t handle everything!. Control. User/Client. Interaction. Interaction. Supporting infrastruct u re. User/Client. Archive service. User/Client. Interaction. Interaction. Notary service.
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LTAP presentation Peter Sylvester EdelWeb Peter.sylvester@edelweb.fr Peter Sylvester LTAP protocol presentation
LTAP layering We don’t handle everything! Peter Sylvester LTAP protocol presentation
Control User/Client Interaction Interaction Supporting infrastructure User/Client Archive service User/Client Interaction Interaction Notary service Supporting infrastructure Services Overview Peter Sylvester LTAP protocol presentation
Infrastructures • Basic infrastructure of trusted archive service • Interaction protocol • Archive objects • Data • Metadata • Digital signatures • Conservation attributes • Archive meta data • Complementary data • Evidence data • Supporting infrastructure of trusted archive service • Communication network • Security mechanisms • Time stamping • Data storage or document management system Peter Sylvester LTAP protocol presentation
Interactions • Message based technical and formal interpretation of archive services • Transaction based (asynchronous operation) • Request • Acknowledge (technical) • Response (business) • Support for services archive/status/verify/export/delete defined by service • Underlying authorization and transport services • SAML, SOAP, SSL, etc. Peter Sylvester LTAP protocol presentation
Transactions • Asynchronous by need • Need to « wait » until evidence available • Implemented using polling via status function • Request, acknowledge, final result • Client in only need 1 function + status Peter Sylvester LTAP protocol presentation
Basic functions • Archive – insert data in the archive • Status – determine status of archived data • Transfer – export archive data and evidence data • Delete – delete archive data and evidence data • Verify – demonstrate data integrity and authenticity Peter Sylvester LTAP protocol presentation
LTAP service • Most importing: archiving • not an ebXML registry • Access, transfer are rare operations • At least during lifetime of objects, then transfer to historical archives • Client do not need to implement all functions Peter Sylvester LTAP protocol presentation
Management • Changes done via « transfer » • E.g. Changing of archive periods • Policies and configurations by reference • Minimization of parameters • Parameters to be configured a priori • Metadata from other layers • Entity identifiers and scope metadata, e.g. jurisdiction • Out of scope ‘front ends’ e.g. notarization • specialized front ends for authentication Peter Sylvester LTAP protocol presentation
Archive objects • Archive data • Raw data • Metadata • Security attributes (digital signatures) • Conservation attributes • Archive meta data • Complementary data • Evidence data Peter Sylvester LTAP protocol presentation
Archive data Peter Sylvester LTAP protocol presentation
Status • Document version 00 out • Metadata not completely clear • Collections/groups to be done • Adjusted with ERS • Some concerns about physical deletion • Data structures not yet fully defined Peter Sylvester LTAP protocol presentation
General Information • Authors • Aleksej Jerman Blazic, SETCCE • Peter Sylvester, EDELWEB • Carl Wallace, ORIONSEC Peter Sylvester LTAP protocol presentation