Relay Attacks on Bluetooth Authentication and Solutions (2008)
Albert Levi, Erhan Çetintaş, Murat Aydos, Çetin Kaya Koç, M. Ufuk Çağlayan
Abstract. We describe relay attacks on Bluetooth authentication protocol. The aim of these attacks is impersonation. The attacker does not need to guess or obtain a common secret known to both...
SETTING INITIAL SECRET KEYS IN A MOBILE AD HOC NETWORK (2008)
Abstract. Mobile ad hoc networks require specialized authentication protocols due to the mobility of users and lack of always-available trusted servers. There are a variety of mobile ad hoc...
Relay Attacks on Bluetooth Authentication and Solutions (2008)
Albert Levi, Erhan Çetintaş, Murat Aydos, Çetin Kaya Koç, M. Ufuk Çağlayan
Abstract. We describe relay attacks on Bluetooth authentication protocol. The aim of these attacks is impersonation. The attacker does not need to guess or obtain a common secret known to both...
Abstract approved:
Trace-Driven Cache Attacks on AES (Short Paper) (2008)
Abstract. Cache based side-channel attacks have recently been attracted significant attention due to the new developments in the field. In this paper, we present an efficient trace-driven cache...
CONSEPP: CONvenient and Secure Electronic Payment Protocol Based on X9.59, ” presented at The (2007)
The security of electronic payment protocols is of interest to researchers in academia and industry. While the ultimate objective is the safest and most secure protocol, convenience and usability...
On the power of simple branch prediction analysis (2007)
Onur Acıiçmez, Çetin Kaya Koç, Jean-Pierre Seifert
Very recently, a new software side-channel attack, called Branch Prediction Analysis (BPA) attack, has been discovered and also demonstrated to be practically feasible on popular commodity PC...
A simple attack on a recently introduced hashbased secure user authentication scheme (2006)
The user authentication is an important part of network security. Several strong-password authentication protocols have been introduced, but a secure scheme, which probably withstands to several...
Predicting Secret Keys via Branch Prediction (2006)
Jean-pierre Seifert, Çetin Kaya Koç
This paper presents a new software side-channel attack --- enabled by the branch prediction capability common to all modern high-performance CPUs. The penalty payed (extra clock cycles) for a...
Trace-Driven Cache Attacks on AES (2006)
Cache based side-channel attacks have recently been attracted significant attention due to the new developments in the field. In this paper, we present e#cient trace-driven cache attacks on a widely...
Cryptanalysis and Enhancement of Authentication Protocols (2006)
Abstract approved:
Vulnerabilities in the Adachi-Aoki-Komano-Ohta Micropayment Scheme Abstract (2005)
Rivest and Shamir presented two simple micropayment schemes, “PayWord ” and “MicroMint, ” for making small purchases over the Internet [14]. Recently, Adachi et al. have pointed out that the...
Scalable VLSI Architecture for GF(p) Montgomery Modular Inverse Computation (2002)
Re Ferreira Tenca, Çetin Kaya Koç
Modular inverse computation is needed in several public key cryptographic applications. In this work, we present two VLSI hardware implementations used in the calculation of Montgomery modular...
Reducing Certificate Revocation Cost Using NPKI (2000)
Abstract: Problems with certificate revocation status control limit the deployment of Public Key Infrastructure (PKI). Classical certificate paths require revocation control of all certificates on...