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We show how the generation of a random integer k modulo q and the subsequent computation of k-1 mod q during the signature phase of the NIST digital signature algorithm (DSA) can be replaced by the simultaneous generation of a pair (k,k-1
The Digital Signature Algorithm (DSA) was proposed in 1991 by the US National Institute of Standards and Technology to provide an appropriate core for applications requiring digital signatures. Undoubtedly, many applications will include this standard in t ...
The biggest challenge for RFID technology is to provide benefits without threatening the privacy of consumers. Many solutions have been suggested but almost as many ways have been found to break them. An approach by Ohkubo, Suzuki and Kinoshita using an in ...
The research on P2P systems which support skewed key distributions has rapidly advanced in the recent years. Yet, the assumptions on the skews we are dealing with remained pretty simple: most of the existing literature assumes simple monotonous key distrib ...
We propose a new approach to securing computer networks. With this approach, we achieve security in a fully self-organized manner; by this we mean that to secure a computer network, a security system does not require any kind of certification authority or ...
DES and triple-DES are two well-known and popular encryption algorithms, but they both have the same drawback : their block size is limited to 64 bits. While the cryptographic community is working hard to select and evaluate candidates and finalists for th ...
This thesis is primarily concerned with two security mechanisms for wireless networks: location verification and key management. These mechanisms are potential building blocks in the security architectures of a range of applications. Under location verific ...
In this note we exhibit some weakness in two key certification schemes. We show how a legitimate user can impersonate any other user in an ElGamal-based certification scheme, even if hashing is applied first. Furthermore, we show how anybody can impersonat ...
