commit | d8e530952719fafe8aa512df085f3f568fde5cf2 | [log] [tgz] |
---|---|---|
author | Harald Welte <laforge@osmocom.org> | Tue May 30 15:01:38 2023 +0200 |
committer | laforge <laforge@osmocom.org> | Fri Jun 02 08:29:55 2023 +0000 |
tree | 3afb6dba67015026cd713edd4d5fbea02a073fd3 | |
parent | 0ea9b91e0f78ffcb88c903e665a39d61afc710af [diff] |
libosmogsm: Allow auth API caller to specify RES length There are 3G algorithms which support different lengths of RES values (4, 8, 16 byte). For MILENAGE, we never really had to bother, as the 4-byte RES is simply the first 4 bytes of the 8-byte RES. However, for TUAK, the expected RES length is an input parameter to the Keccak crypto functions, so the result of all parameters (including CK, IK, ...) will be completely different for RES length 4 than RES length 8. So let's permit the caller of the osmocom auth API to specify the requested RES length via the osmo_auth_vector.res_len parameter. For backwards compatibility of callers of the old osmo_auth_gen_vec/ osmo_auth_gen_vec_auts API: Always force the res_len to 8 in this case, which was the hard-coded length before this patch. Change-Id: Ic662843fbe8b5c58e4af39ea630ad5ac13fd6bef
This repository contains a set of C-language libraries that form the core infrastructure of many Osmocom Open Source Mobile Communications projects.
Historically, a lot of this code was developed as part of the OpenBSC project, but which are of a more generic nature and thus useful to (at least) other programs that we develop in the sphere of Free Software / Open Source mobile communications.
There is no clear scope of it. We simply move all shared code between the various Osmocom projects in this library to avoid code duplication.
The libosmocore.git repository build multiple libraries:
The official homepage of the project is https://osmocom.org/projects/libosmocore/wiki/Libosmocore
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git clone https://gitea.osmocom.org/osmocom/libosmocore
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