Date: Fri, 10 Dec 2004 10:14:44 +0000 From: Mark Murray <markm@FreeBSD.ORG> To: Colin Percival <colin.percival@wadham.ox.ac.uk> Cc: freebsd-arch@FreeBSD.ORG Subject: Re: Adding standalone RSA code Message-ID: <200412101014.iBAAEict086798@grovel.grondar.org> In-Reply-To: Your message of "Fri, 10 Dec 2004 01:08:02 PST." <41B96772.4010000@wadham.ox.ac.uk>
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Colin Percival writes: > Mark Murray wrote: > > Colin Percival writes: > >>I was comparing /usr/lib/libcrypto.a (1.7 MB on my system) to the sum > >>of the sizes of the object files built from my library code (38 kB). > >> > >>If you look at the number of lines of C files (counted using `wc -l` > >>since I don't want to bother installing sloccount), my code is 1489 > >>lines compared to openssl's 202982 lines. > > > > Do you have a version of your code linked against OpenSSL? What is the > > size difference between a static link of your code vs a static link > > against OpenSSL? > > I don't have a version using openssl, but my key generation program > (statically linked against my crypto code) is 37kB, while a program > which calls RSA_generate_key (statically linked against openssl) is > 240kB. So even under the most favourable conditions (adding overhead > to my code but not to openssl) it's a size ratio of more than 6. Hmm. I must profess to having a degree of discomfort with duplicated functionality. 240k is not a big binary, and it sounds like your applet is one that may get heavy use. Its not built for speed; how much of a problem is this? If OpenSSL grows hardware BigNum support, your app will not benefit; how will this affect the user? Is size really a concern? I can't find a disk smaller than 10 GB at my local dealer. M -- Mark Murray iumop ap!sdn w,I idlaH
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