>> I have a plain text file which I would like to protect in a very >> simple minded, yet for my purposes sufficient, way. I'd like to >> encrypt/convert it into a binary file in such a way that possession of >> a password allows anyone to convert it back into the original text >> file while not possessing the password one would only see the >> following with the standard linux utility 'file': >> >> [fetchin...@fetch ~]$ file encrypted.data >> encrypted.data: data >> >> and the effort required to convert the file back to the original text >> file without the password would be equivalent to guessing the >> password. >> >> I'm fully aware of the security implications of this loose >> specification, but for my purposes this would be a good solution. >> >> What would be the simplest way to achieve this using preferably stock >> python without 3rd party modules? If a not too complex 3rd party >> module made it really simple that would be acceptable too. > > Paul Rubin's p3.py algorithm is probably the most straightforward way to > meet > these requirements. It's not a standard crypto algorithm by any means, but > Paul > knows his stuff and has devised it with these deployment restrictions in > mind. > > http://www.nightsong.com/phr/crypto/p3.py
Thanks a lot, currently I'm having trouble using this code on python 2.6 but probably some small tweaking will fix it. Cheers, Daniel -- Psss, psss, put it down! - http://www.cafepress.com/putitdown -- http://mail.python.org/mailman/listinfo/python-list
