Re: UMA a possibility in the future?

Am Montag, den 03.08.2009, 12:59 +0200 schrieb Harald Welte:

A3/A8 is either proprietary by the operator, or comp128v2 or v3 (both are officially closed, but it's safe to assume them to be known).

As Dieter has indicated in earlier mails, you can get SIM's that have comp128v1 or XOR as A3/A8 and which allow you to set the Ki of the SIM. With those SIM's, or an emulated SIM you can test any implementation of encryption for OpenBSC, once it has been done.

At this point I have got one general question, maybe also towards Dieter: How can A3/A8 be proprietary by any operator? How does international roaming work then if there is no standardized algorithm?

Johannes