A Novel Patch-Based Digital Signature

Novel Digital Signature Schemes based on Factoring and Discrete Logarithms

In the paper, we propose a new digital signature scheme based on factoring and discrete logarithms. Specially, we prove that the security of the proposed signature scheme is based on both the security of the ElGamal signature scheme and the security of the modified OSS signature scheme. This is the first scheme which can be proved that its security is based on two hard problems. Like Meta-ElGam...

Digital Signature based Proxy Multi-Signature Scheme

A Proxy signature scheme enables a proxy signer to sign a message on behalf of the original signer. In this paper, we propose ECDLP based solution for chen et. al [1] scheme. We describe efficient and secure Proxy multi signature scheme that satisfy all the proxy requirements and require only elliptic curve multiplication and elliptic curve addition which needs less computation overhead compare...

A Practical Lattice-based Digital Signature Schemes

JAMES HOWE, Centre for Secure Information Technologies (CSIT), Queen’s University Belfast, UK THOMAS PÖPPELMANN, Horst Görtz Institute for IT-Security, Ruhr-University Bochum, Germany MÁIRE O’NEILL, Centre for Secure Information Technologies (CSIT), Queen’s University Belfast, UK ELIZABETH O’SULLIVAN, Centre for Secure Information Technologies (CSIT), Queen’s University Belfast, UK TIM GÜNEYSU,...

A Digital Signature Scheme based on CVP

In Crypto 1997, Goldreich, Goldwasser and Halevi (GGH) proposed a lattice analogue of McEliece public key cryptosystem, which security is related to the hardness of approximating the closest vector problem (CVP) in a lattice. Furthermore, they also described how to use the same principle of their encryption scheme to provide a signature scheme. Practically, this cryptosystem uses the euclidean ...

A Novel Algorithm for Digital Distance Relaying

Distance relays are used to protect EHV and HV Transmission lines. Over the past decades many algorithms have emerged for digital distance relays. These are based on the calculation of the transmission line impedance from the relaying to fault points. In this paper a novel method for digital distance relaying is proposed. In the method the tracking procedure is implemented. The method uses the ...

Hash-based Digital Signature Schemes