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* osmo_auth*: fix ordering of function argsNeels Hofmeyr2017-02-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | milenage_gen_vec() has parameter ordering of (..., auts, rand_auts, rand). osmo_auth_gen_vec_auts() has (..., rand_auts, auts, rand), but actually feeds args in the same order, so that its rand_auts becomes auts, and its auts becomes rand_auts. Interestingly enough, API user osmo-gen-vec.c also adheres to this misordering and in turn passes auts for osmo_auth_gen_vec_auts()'s rand_auts and vice versa, so that it matches milenage_gen_vec(). So both the implementation (milenage_*) and the API user use the same ordering, just osmo_auth_gen_vec_auts() and osmo_auth_impl{ .gen_vec_auts() } in-between have the argument names swapped. Any current user of this API would need to adhere to this swapping or will not get successful AUTS resolution to a SQN. So the least impact fix is to rename the args without any actual functional change. So swap the names rand_auts and auts for osmo_auth_gen_vec_auts() and osmo_auth_impl{ .gen_vec_auts() }. (Also adjust API doc ordering) Change-Id: I0dcbd49759fc32d3b8974102dbd1d6703364ebf4
* Add GEA3 & GEA4 ciphersMax2016-07-111-0/+2
| | | | | | | | | | | Corresponding test code include both official test vectors from the specs and data from over-the-air tests. This obsoletes libosmo-crypt-a53 as it was last missing piece unimplemented in libosmogsm. Change-Id: I939e4f6b91b4a7c591ef3761fe2d46ed1c2fb2d3 Related: OS#1582
* Clarify GPRS algorithmMax2016-06-291-5/+6
| | | | | | | | Add spec reference and set explicit values for enum representing ciphering algorithm for GPRS encryption. Change-Id: Ia9ee429b73a37d52599fce70778cfe87b767411c Related: OS#1582
* Clarify GPRS ciphering directionMax2016-06-291-2/+3
| | | | | | | | Add spec reference and set explicit values for enum representing direction parameter for GPRS encryption. Change-Id: Iaf1b13da2e889d55cc9dd7516710104dba48c992 Related: OS#1582
* Make C4 function globally availableMax2016-06-291-1/+1
| | | | | | | | | This function perform 64 -> 128 bit key expansion which useful for converting between UMTS CK and GSM Kc, A5/3 and A5/4, GEA3 and GEA4 keys. Change-Id: I5a6c6deef6027cd6af144c9062d4c9166be26904 Related: OS#1582
* Add strings for GPRS ciphersMax2016-06-291-0/+3
| | | | | Change-Id: I050bda5fb50aad42fe2d72de39f8256b4fb12fb2 Related: OS#1582
* Update internal GPRS cipher APIMax2016-04-221-2/+6
| | | | | Update internal API (for GPRS cipher implementors): make it compliant with ETSI TS 155.22. External API left untouched.
* include: Switch to #pragma once patternSylvain Munaut2014-06-162-8/+2
| | | | Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* authentication: More documentationHarald Welte2012-07-181-17/+27
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* build: simplify headers management and remove recursionDiego Elio Pettenò2012-06-301-3/+0
| | | | | | | | | | | | There is no real reason to keep the include directory a multi-level recursion, so instead declare everything within include (so that we can use proper nobase_ declarations) and be it. Please note that since we removed the sub-Makefile.am, ./configure will not create the directory structure for us on out-of-tree builds, so we have to make sure the directory we're generating to exists first. Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
* auth_milenage/osmo-auc-gen: compute OPC in case only OP is knownHarald Welte2012-03-211-0/+1
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* auth_core: don't use anonymous unions to make certain gcc versions happyHarald Welte2011-12-071-1/+1
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* auth_core: add functions for parsing algorithm namesHarald Welte2011-12-071-0/+3
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* Add a generic abstraction for GSM/3G authentication algorithmsHarald Welte2011-12-062-1/+88
| | | | | Indiidual algorithms can be implemented as plugins. libosmogsm itself only provides COMP128v1 via this generic interface.
* include: reorganize headers file to include/osmocom/[gsm|core]Pablo Neira Ayuso2011-03-231-1/+1
| | | | | | | | | | | | This patch moves all GSM-specific definitions to include/osmocom/gsm. Moreover, the headers in include/osmocore/ have been moved to include/osmocom/core. This has been proposed by Harald Welte and Sylvain Munaunt. Tested with `make distcheck'. Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
* GPRS: Add 'input' generator functions for GPRS cipher algorithmHarald Welte2010-06-301-0/+6
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* Add support for plugins (and specifically GPRS encryption plugins)Harald Welte2010-06-302-0/+51
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