Hi Marek, First I would like to thank you for your quick reply. I just have one more small question :) As far as I could see the ASN.1 is used basically to calculate the size of the signature (at least on the ecdsa side). So if I know exactly the size of the signatures then I can only remove the use of the ASN.1?
Thanks again Eman On 9/19/07, Marek Marcola <[EMAIL PROTECTED]> wrote: > > Hello, > > > > I am sorry to write you directly but I have posted my question twice > > on the openssl site and for some reason it never get published. > > I would like to use only the ECDSA, is there any simple way to compile > > it alone (ofcourse with the modules it's using). > > I have tried doing it manually, but there are too many switches and > > defines that I do not know. > I've never tried but I think that this is possible and not very > complicated. EC/ECDSA works on big numbers, so you must get all > needed source files from crypto/bn, remove some logging from there > and one CRYPTO_LOCK. You should create your own Makefile for that > and compile to library. Next you should get source from crypto/ec > and crypto/ecdsa (only files you need) and compile. You should remove > or change logging functions and ASN.1 (reading/writing ECDSA signature > to binary ASN1 form from/to BIGNUM should be implemented by you - very > easy). I think this is possible :-) > > Best regards, > -- > Marek Marcola <[EMAIL PROTECTED]> > > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager [EMAIL PROTECTED] >
