Campus Event Calendar
Event Entry
New for: D1, D2, D3, D4, D5
What and Who
New approaches to digital evidence
Ueli Maurer
ETH Zuerich
Distinguished Speaker Series: Talk
AG 1, AG 2, AG 3, AG 4, AG 5
MPI Audience
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Date, Time and Location
Wednesday, 15 March 2006
16:00
-- Not specified --
46.1 - MPII
024
Saarbrücken
Abstract
Digital evidence, such as digital signatures, is of crucial importance
in the emerging digitally operating economy because it is easy to
transmit, archive, search, and verify. Nevertheless the initial
promises of the usefulness of digital signatures were too optimistic.
This calls for a systematic treatment of digital evidence. The goal
of this talk is to provide a foundation for reasoning about digital
evidence systems and legislation, thereby identifying the roles and
limitations of digital evidence, in the apparently simple scenario
where it should prove that an entity A agreed to a digital contract d.
Our approach is in sharp contrast to the current general views
documented in the technical literature and in digital signature
legislation. We propose an entirely new view of the concepts of
certification, time-stamping, revocation, and other trusted services,
potentially leading to new and more sound business models for trusted
services. Some of the perhaps provocative implications of our view are
that certificates are generally irrelevant as evidence in a dispute,
that it is generally irrelevant *when* a signature was generated, that
a commitment to be liable for digital evidence cannot meaningfully be
revoked, and that there is no need for *mutually* trusted authorities
like certification authorities. We also propose a new type of digital
evidence called digital declarations, based on a digital recording of
a willful act indicating agreement to a document or contract.
in the emerging digitally operating economy because it is easy to
transmit, archive, search, and verify. Nevertheless the initial
promises of the usefulness of digital signatures were too optimistic.
This calls for a systematic treatment of digital evidence. The goal
of this talk is to provide a foundation for reasoning about digital
evidence systems and legislation, thereby identifying the roles and
limitations of digital evidence, in the apparently simple scenario
where it should prove that an entity A agreed to a digital contract d.
Our approach is in sharp contrast to the current general views
documented in the technical literature and in digital signature
legislation. We propose an entirely new view of the concepts of
certification, time-stamping, revocation, and other trusted services,
potentially leading to new and more sound business models for trusted
services. Some of the perhaps provocative implications of our view are
that certificates are generally irrelevant as evidence in a dispute,
that it is generally irrelevant *when* a signature was generated, that
a commitment to be liable for digital evidence cannot meaningfully be
revoked, and that there is no need for *mutually* trusted authorities
like certification authorities. We also propose a new type of digital
evidence called digital declarations, based on a digital recording of
a willful act indicating agreement to a document or contract.
Contact
Roxane Wetzel
900
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Roxane Wetzel, 03/15/2006 10:54
Roxane Wetzel, 03/03/2006 16:05
Roxane Wetzel, 03/01/2006 15:09
Roxane Wetzel, 02/16/2006 11:15
Roxane Wetzel, 02/16/2006 11:14 -- Created document.
Roxane Wetzel, 03/03/2006 16:05
Roxane Wetzel, 03/01/2006 15:09
Roxane Wetzel, 02/16/2006 11:15
Roxane Wetzel, 02/16/2006 11:14 -- Created document.