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Re: public key encryption

by hv (Parson)
on May 28, 2004 at 23:43 UTC ( #357387=note: print w/replies, xml ) Need Help??

in reply to public key encryption

I've done some work recently with Crypt::OpenPGP. The interface seemed intuitive enough, but I found it challenging to work with - in part, I suspect, because I usually find it easier to understand code than docs, and tracing the code through the maze of packages was somewhat challenging.

The biggest problem I had was a hash-order dependency bug, which caused random results with recent perls. I offered the author a workaround for the particular case that bit me, but fixing it properly will need a bit of reworking of the internals.

It also didn't do everything I needed (to encrypt an arbitrary message given an arbitrary public key block) - see Crypt::OpenPGP - finding and using preferred SK algorithm for the extension I needed to achieve that.

Once I'd worked through those two problems I was able to put it into production, and have had no problems since then.


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[jdporter]: one prog I have has a UI which allows to input a bit mask
[jdporter]: currently it expects the bitmask to be in the form of a hex number, e.g. 0x0101
[jdporter]: but I'd like to let the user specify it as individual bits, i.e. 0b0000000100000001
[jdporter]: there is no bit/binary equivalent of hex, right?
[jdporter]: I guess that the most direct way of doing it is with some magical incantation involving unpack or whatever
[jdporter]: let me google that for me ;-)
[jdporter]: hex points explicitly to oct, which does the job. :-D
[jdporter]: omg, I f love Perl!
[choroba]: say unpack 'H*', pack 'B*', $mask =~ /0b([01]+)/;

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