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neels gerrit-no-reply at lists.osmocom.orgneels has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/24759 ) Change subject: msc: generate Milenage ck in f_get_expected_encryption() ...................................................................... msc: generate Milenage ck in f_get_expected_encryption() Instead of overwriting the ck of the original auth vector, generate the Milenage-on-GERAN Ck key only for the expected ciphering IEs, centrally in f_get_expected_encryption(). Related: SYS#5324 Change-Id: Iec618ba7fddb2290fc0137d99a9b8d5e2b428b98 --- M msc/BSC_ConnectionHandler.ttcn 1 file changed, 7 insertions(+), 2 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/59/24759/1 diff --git a/msc/BSC_ConnectionHandler.ttcn b/msc/BSC_ConnectionHandler.ttcn index be72399..68a370d 100644 --- a/msc/BSC_ConnectionHandler.ttcn +++ b/msc/BSC_ConnectionHandler.ttcn @@ -435,7 +435,6 @@ g_pars.vec.autn, g_pars.vec.res)); GSUP.send(ts_GSUP_SAI_RES(g_pars.imsi, auth_tuple)); - g_pars.vec.kc := f_auth3g_kc(g_pars.vec); } else { g_pars.vec := f_gen_auth_vec_2g(); auth_tuple := valueof(ts_GSUP_IE_AuthTuple2G(g_pars.vec.rand, @@ -577,7 +576,13 @@ return; } - encryptionInformation := tr_BSSMAP_IE_EncrInfo(g_pars.vec.kc, a5_perm_alg); + var OCT8 kc; + if (g_pars.use_umts_aka) { + kc := f_auth3g_kc(g_pars.vec); + } else { + kc := g_pars.vec.kc; + } + encryptionInformation := tr_BSSMAP_IE_EncrInfo(kc, a5_perm_alg); var OCT1 chosen_alg := int2oct(f_alg_from_mask(f_best_alg_from_mask(a5_perm_alg)) + 1, 1); chosenEncryptionAlgorithm := tr_BSSMAP_IE_ChosenEncryptionAlgorithm(chosen_alg); -- To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/24759 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-Change-Id: Iec618ba7fddb2290fc0137d99a9b8d5e2b428b98 Gerrit-Change-Number: 24759 Gerrit-PatchSet: 1 Gerrit-Owner: neels <nhofmeyr at sysmocom.de> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210623/b4360bf5/attachment.htm>