hashcash-0.30 - 04-Mar-2004 - Adam Back <adam@cypherspace.org>
* make -cX check multiple X-Hashcash lines until it finds the
right one. Bug reported by Kyle Hasselbacher <kyle@toehold.com>.
hashcash-0.29 - 04-Mar-2004 - Adam Back <adam@cypherspace.org>
* fix prototype mismatch of function hashcash_check in
hashcash.h vs libhc.c which caused compile failure on
openBSD and freeBSD
* change to make it compile on MAC OSX (need to recognize OSX
and treat as unix like for headers to include)
* change to make it compile on solaris 9 (and POSIX / SVR
systems in general). Turns out putenv(3) is more portable
than setenv(3) / unsetenv(3)
* update sha1 man page to name it sha1-hashcash to avoid collision
with openssl sha1(1). By default with openssl there is not
actually any program named sha1, rather sha1 is a subprogram of
openssl invoked "openssl sha1". However I think it may still be
possible to compile that as a separate program or symlink sha1 to
openssl to get that.
* update sha1 man pages to refer to the other common sha1
implementations.
* update LICENSE request
use is to help hashcash users avoid losing email due to content based
and blacklist based anti-spam systems.
The hashcash tool allows you to create hashcash tokens to attach to
emails you send, and to verify hashcash tokens attached to emails you
receive. Email senders attach hashcash tokens with the X-Hashcash:
header. Vendors and authors of anti-spam tools are encouraged to exempt
mail sent with hashcash from their blacklists and content based
filtering rules.
