RISC Seminars (Research on Information Security and Cryptology)
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Special RISC Seminar to the occassion of Marc Stevens' PhD defense
| Date: | June 19 |
| Location: | Snellius Building (Mathematical Institute), Leiden University, Room 174 |
| Schedule: | |
| 11:00-11:45 | Xiaoyun Wang (Tsinghua University, Beijing, China): Shortest Lattice Vectors in the Presence of Gaps Abstract: The talk will recall the existing algorithms of solving SVP (Shortest Vector Problem), and then introduce a more
efficient SVP search algorithm in the Presence of Gaps.
|
| 12:00-12:45 | Eli Biham (Technion, Haifa, Israel): On the (in)security of GSM cellular phones Abstract: In this talk we describe the ciphers and protocols used for the GSM
cellular phone network, and discuss the (in)security of the system.
We describe several techniques to attack the ciphers A5/2 and A5/1, and
how they can be applied as a ciphertext-only attack. We also show that
active attacks on the protocols can recover keys of ciphers that are not
used during that transmission. As a result, it is possible to listen in
to GSM phone conversations, steal calls during the conversation, and
even issue new calls on behalf of (and paid by) an attacked phone.
This is a joint work with Elad Barkan and Nathan Keller. |
| 15:00 | Marc Stevens' PhD defense at Academiegebouw, Rapenburg 73 |
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