Re: EAP-SIM authentication failed

On 15/11/12 16:46, Yann R. Moupinda wrote:

Has anyone an idea why the MAC not matches although Client and Server are using the same algorithm version (Version 1 mentioned in AT_VERSION_LIST from Server and in AT_SELECTED_VERSION from client) ?

It's probably a bug somewhere. Very likely, the wrong data is being fed into the MAC at both ends. Unfortunately, since FreeRADIUS works with *some* EAP-SIM/AKA supplicants, I am guessing there are incompatible implementations out there. You would need to read the SIM/AKA RFCs in detail, and possibly feed the test data into FreeRADIUS to find the bug.