http://bugzilla.spamassassin.org/show_bug.cgi?id=3657
Summary: hashcash version1 support
Product: Spamassassin
Version: SVN Trunk (Latest Devel Version)
Platform: Other
URL: http://www.hashcash.org
OS/Version: other
Status: NEW
Severity: major
Priority: P2
Component: spamassassin
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED],[EMAIL PROTECTED]
The hashcas version 0 format currently implemented is being deprecated.
The major difference between version 1 and version 0 is to support extensions so
that people can build backwards compatible extensions which can be ignored by
clients that don't understand them.
If SA3 deploys with v0 format it will by large-scale deployment make moving to
v1 format difficult, and effectively delay it indefinitely.
It is difficult to retain backwards compatibility with v0 format. Sending two
stamps (a v0 and a v1) is problematic also as they each cost CPU time!
The format changes are very simple and should be easy to implement. Perl code
was proposed for parsing is already coded.
Need to deal with multi-line but that also should not be hard.
There is a hashcash 1.0 command line implementation of the v1 format. It is
planned to go into debian RSN.
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