A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Checksum Ciphersuites for the Bundle Protocol
Author(s) : W. Eddy, et al.
Filename : draft-irtf-dtnrg-bundle-checksum-04.txt
Pages : 23
Date : 2009-03-04
The Delay-Tolerant Networking Bundle Protocol includes a custody
transfer mechanism to provide acknowledgements of receipt for
particular bundles. No checksum is included in the basic DTN Bundle
Protocol, however, so at intermediate hops, it is not possible to
verify that bundles have been either forwarded or passed through
convergence layers without error. Without assurance that a bundle
has been received without errors, the custody transfer receipt cannot
guarantee that a correct copy of the bundle has been transferred, and
errored bundles are forwarded instead of being discarded. This
document attempts to address the situation by defining new
ciphersuites for use within the existing Bundle Security Protocol's
Payload Integrity Block (formerly called the Payload Security Block)
to provide error-detection functions regardless of an
implementation's support for other, more complex, security-providing
ciphersuites. This creates the checksum service needed for error-
free reliability, but does so at the expense of divorcing security
concerns from the few new reliability-only ciphersuite definitions
that are introduced here. This document discusses in necessary
detail the advantages and disadvantages of this approach and the
existing constraints that combined to drive this design.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-irtf-dtnrg-bundle-checksum-04.txt
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-irtf-dtnrg-bundle-checksum-04.txt>
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