On Tue, Jul 01, 2008, harold reggie wrote: > Hello, > I am trying to build a custom asn1 structure in my program using openssl > 0.9.6. > The structure will have a few sequences / sets with integers, > printablestrings, etc. > > I am looking for some help on where to begin. I have been pouring over the > openssl code, and have been playing with various methods of creating this > ans1 structure but i haven't been able to create quite what i need. > > Are there some good examples out there too look at? >
The first piece of advice if possible is DON'T. The ASN1 code changed significantly in OpenSSL 0.9.7 and later and as a result it is much easier to write. All the old code had been rewritten in the new format with the odd exception such as SSL_SESSION. In 0.9.7 there are numerous cases where the standard modules use ASN1 these usually have the names *_asn1.c or *_asn.c . There are many (which don't follow that naming convention) in crypto/x509v3. If you have to use 0.9.6 then look at the equivalent files. You have to manually write 4 functions foo_new(), foo_free(), i2d_foo() and d2i_foo() using macros from asn1_mac.h . Steve. -- Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage OpenSSL project core developer and freelance consultant. Homepage: http://www.drh-consultancy.demon.co.uk ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
