Re: Using OpenSSL and RSA
Re: Using OpenSSL and RSA
- Subject: Re: Using OpenSSL and RSA
- From: Andy Lee <email@hidden>
- Date: Wed, 27 Mar 2002 06:26:29 -0500
At 8:00 PM -0700 3/26/02, Alex Rice wrote:
It took me while to figure it out how to use OpenSSL from Obj-C.
Here is the process I went through:
Alex, thanks a million for this. I am new to the subject of
encryption, which I need for an app I am working on. The learning
process for me has been stumbling and non-linear:
...Notice several OS X apps use Blowfish -- must be good...
...Find counterpane.com, Bruce Schneier's writings, and free code...
...Hm, Blowfish isn't "AES," but it's still quite strong, it's fast,
and *I understand it*...
...Discover I can do "man blowfish" (sorry if that sounds obscene ;))...
...Read in the man page that I should use EVP functions...
...But "locate evp.h" turns up nothing (though "locate blowfish.h"
finds that in Kernel.framework)...
...See a posting somewhere about CDSA -- oh, so I guess I'm
"supposed" to use that...
...Find very little documentation on CDSA that isn't mind-numbing...
...Downloaded Apple's CDSA source, but it's a monster (my needs are
so simple!)...
...Find Nat's MulleCipher code and decide I'll take that approach
(wrap some free Blowfish C code in Objective-C)...
...Change my mind after reading your post about the OpenSSL libraries...
--Andy
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