Analysis of 3gpp-MAC and two-key 3gpp-MAC

A Concrete Security Analysis for 3GPP-MAC

The standardized integrity algorithm f9 of the 3GPP algorithm computes a MAC (Message Authentication Code) to establish the integrity and the data origin of the signalling data over a radio access link of W-CDMA IMT-2000. The function f9 is based on the block cipher KASUMI and it can be considered as a variant of CBC-MAC. In this paper we examine the provable security of f9. We prove that f9 is...

3kf9: Enhancing 3GPP-MAC beyond the Birthday Bound

Among various cryptographic schemes, CBC-based MACs belong to the few ones most widely used in practice. Such MACs iterate a blockcipher EK in the so called Cipher-Block-Chaining way, i.e. Ci = EK(Mi⊕Ci−1) , offering high efficiency in practical applications. In the paper, we propose a new deterministic variant of CBC-based MACs that is provably secure beyond the birthday bound. The new MAC 3kf...

A New Variant of 3GPP-MAC With Provable Security and Higher Efficiency

3GPP-MAC, also called f 9, is an integrity scheme adopted by Universal Mobile Telecommunication System as a standard for the 3rd generation wireless communications. In this paper, we investigate the feasibility of improving its efficiency, with the precondition that its security would not be compromised. As we show, the newly proposed f 9 enjoys provable security under the solo PRP assumption; ...

TMAC: Two-Key CBC MAC

Analysis of positioning capabilities of 3GPP LTE

The performance of Global Navigation Satellite Systems (GNSS) can be improved in certain environments (e.g. indoor or urban scenarios) by using additional complementary systems, such as the use of wireless communications signals. Indeed, multicarrier wireless systems provide many advantages for the integration of both communications and positioning capabilities, such as the Long Term Evolution ...