Results 31 to 40 of about 213 (104)
Authenticated Multi-Party Key Agreement
, 1996 We examine multi-party key agreement protocols that provide (i) key authentication, (ii) key confirmation and (iii) forward secrecy. Several minor (repairable) attacks are presented against previous two-party key agreement schemes and a model for key ...
Vaudenay, Serge +3 more
core +1 more source
On Key Distribution via True Broadcasting
, 1994 We consider true broadcast systems for the secure communication of session keys. These schemes provide for parallel rather than serial construction of broadcast messages, while avoiding selective broadcasting.
Danny Krizanc +7 more
core +1 more source
Equivalences of biprojective almost perfect nonlinear functions [PDF]
Two important problems on almost perfect nonlinear (APN) functions are the enumeration and equivalence problems. In this paper, we solve these two problems for any biprojective APN function family by introducing a group theoretic method for those ...
Göloğlu, Faruk, Kölsch, Lukas
core +1 more source
Unconditionally secure signature schemes revisited
Journal of Mathematical Cryptology, 2016 Unconditionally secure signature (USS) schemes provide the ability to electronically sign documents without the reliance on computational assumptions needed in traditional digital signatures.
Swanson Colleen M., Stinson Douglas R.
doaj +1 more source
On the leakage-resilient key exchange
Journal of Mathematical Cryptology, 2017 Typically, secure channels are constructed from an authenticated key exchange (AKE) protocol, which authenticates the communicating parties based on long-term public keys and establishes secret session keys.
Alawatugoda Janaka
doaj +1 more source
Algebraic generalization of Diffie–Hellman key exchange
Journal of Mathematical Cryptology, 2018 The Diffie–Hellman key exchange scheme is one of the earliest and most widely used public-key primitives. Its underlying algebraic structure is a cyclic group and its security is based on the discrete logarithm problem (DLP).
Partala Juha
doaj +1 more source
On the efficiency of a general attack against the MOBS cryptosystem
Journal of Mathematical Cryptology, 2022 All instances of the semidirect key exchange protocol, a generalisation of the famous Diffie-Hellman key exchange protocol, satisfy the so-called telescoping equality; in some cases, this equality has been used to construct an attack.
Battarbee Christopher +3 more
doaj +1 more source
Reproducible families of codes and cryptographic applications
Journal of Mathematical Cryptology, 2021 Structured linear block codes such as cyclic, quasi-cyclic and quasi-dyadic codes have gained an increasing role in recent years both in the context of error control and in that of code-based cryptography.
Santini Paolo +2 more
doaj +1 more source
CHIMERA: Combining Ring-LWE-based Fully Homomorphic Encryption Schemes
Journal of Mathematical Cryptology, 2020 This paper proposes a practical hybrid solution for combining and switching between three popular Ring-LWE-based FHE schemes: TFHE, B/FV and HEAAN. This is achieved by first mapping the different plaintext spaces to a common algebraic structure and then ...
Boura Christina +3 more
doaj +1 more source
MAKE: A matrix action key exchange
Journal of Mathematical Cryptology, 2022 We offer a public key exchange protocol based on a semidirect product of two cyclic (semi)groups of matrices over Zp{{\mathbb{Z}}}_{p}. One of the (semi)groups is additive, and the other one is multiplicative.
Rahman Nael, Shpilrain Vladimir
doaj +1 more source