LTAP protocol presentation LTAP status Peter.sylvester@edelweb.fr July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation LTAP reminder Very thin layer Usable for many use cases Record keeping long term archive July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation Services Basic service (treated) Interaction between client and ONE server Few and simple operations Simple use/profile of protocol Example: One target, one message, etc Extended service (not treated in this doc) For front ends and brokers (Encryption, splitting, proxies, …) Can use the same protocol or overload May add operations Example CompleteTRANSFER from one archive to another July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation Transactions Transaction based (asynchronous operation) borrowed from ebXML 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. Transaction model almost stable Artifacts are probably not necessary, identification via hash and long term URI seems sufficient. French National Archive has defined OAIS like operations and services that map down the LTAP (without saying so) July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation Transactions Asynchronous by need Need to « wait » until evidence available Implemented using polling via status function Request, acknowledge, final result Some clients may only need 1 function + status Ex. Just archive July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation Basic functions Archive – insert data in the archive Status – determine status of archived data Export – export archive data and evidence data Delete – delete archive data and evidence data Verify – demonstrate data integrity and authenticity Question: Can Verify mapped to something in WEBDAV? July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation Status Document version 01 out, still incomplete, next version is already advanced. Small tool to allow automatic creation of asn1 and xsd modules was developped in the meantime. Data structures not yet fully included from existing implementation July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation To be done Result of Verify function? Just a date? An ERS? How to add/handle metainformation? Just « archive » them using existing long term reference. July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation

LTAP protocol presentation General Information Authors Aleksej Jerman Blazic, SETCCE Peter Sylvester, EDELWEB Carl Wallace, ORIONSEC July 2006 IETF 66 Montreal Peter Sylvester LTAP protocol presentation