[hashcash] passthrough mode, feature request
- From: Łukasz Stelmach <lukasz.stelmach@xxxxxxxxxxxxx>
- To: hashcash@xxxxxxxxxxxxx
- Date: Wed, 22 Jun 2011 13:13:19 +0200
Hi.
I started using hascash quite recently and as it happens I already have
found one missing feature: passthrough mode. It is a mode of operation
found in the Bogofilter software. A programme in this mode acts as
a filter and inserts a header that holds information that can later be
used by an MDA (e.g. procmail). For example Bogofilter headers look like
these:
X-Bogosity: Unsure, tests=bogofilter, spamicity=0.887269, version=1.1.5
X-Bogosity: Spam, tests=bogofilter, spamicity=1.000000, version=1.1.5
X-Bogosity: Ham, tests=bogofilter, spamicity=0.157896, version=1.2.0
Hashcash could insert X-Hashcash-Info (e.g.) for every X-Hashcash
found. The header might contain
* actual number of bits "spent"
* "double spend" test results
* stamp's age (this is redundant but makes filtering with procmail
easier)
* all the information from the X-Hashcash except the rand and counter
fields
The difference between X-Hashcash and X-Hashcash-Info is that the latter
can be truested by MDA during classification as it is first removed by
hashcash and then created again.
--
Best regards,
Łukasz Stelmach
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