Re: base32
Re: base32
- Subject: Re: base32
- From: Greg Guerin <email@hidden>
- Date: Wed, 23 Sep 2009 13:47:00 -0700
Sandro Noel wrote:
so i'm trying to find a simple cocoa base32 encode/decode function
that would be as simple as this php one,.
or a good specification that i can build from.. Any pointer would
be ok,
It shouldn't be that hard to write one yourself. It's pretty
elementary. The basic principle is the same as converting binary to
hex, except you use 5-bit slices instead of 4-bit, and you have an
unconventional order of base32 digits:
"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
'A' represents 0. 'B' represents 1, and so on. It's just a char-per-
digit code.
I've occasionally used base32 in the past, but I've never seen that
order of digits before. Maybe you can change the php code to use a
more conventional:
"0123456789ABCDEFGHIJKLMNOPQRSTUV";
-- GG
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