Am 13.09.2010 18:12, schrieb sascha: > reflextor.com/galileo1_a725_d174_g5_KcC07D6E4269C70BB3.cfile.gz > reflextor.com/vf_call6_a725_d174_g5_Kc1EF00BAB3BAC7002.cfile.gz
Hey, thanks a lot! I am sure, Veshna and Tim in the galileo1 dump were aware of the USRP running nearby ;) These dumps helped me to test my own tool with fully encrypted call setups. Didnt have the chance yet to get hands on a dump with hopping-free TCH-assignment. I previously just tested SDCCH decryption and SMS decoding etc., but only with my own SIM card which answered the auth request in a replay session. Some question that is aimed more towards the other readers: Isn't it quite more comfortable not to share the whole raw 32bit float IQ stream, but a reduced burst dump file? First I thought about pcap, but I think that format would be too limiting if it comes to multi-ARFCN recording etc. Also embedding metadata (Kc etc) is an interesting feature. Even when using a simple XML file, this will reduce the size by factor ~100 uncompressed and factor ~500 compressed, which is way better to backup, stream or record :) Here an example containing bursts starting from TN 0 in FN 860910 on ARFCN 761. Skipping dummy bursts (here TN 1) reduces the file size again. <b d="00000000000000000000000000000000000000" a="761" f="860910" t="0"/> <b d="15CA2EA70716AF812E112E33369ECC4D22A100" t="2"/> <b d="0CCB71F49C4AB8A12E112EB79F97C83ABAFF00"/> Your thoughts on this? Maybe there is an even better alternative already available? BR, Georg _______________________________________________ A51 mailing list [email protected] http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
