Results 1 to 10 of about 18,074,471 (294)
Public key exchange using matrices over group rings [PDF]
Groups, Complexity, Cryptology, 2013 We offer a public key exchange protocol in the spirit of Diffie-Hellman, but we use (small) matrices over a group ring of a (small) symmetric group as the platform. This "nested structure" of the platform makes computation very efficient for legitimate parties.
Delaram Kahrobaei, Vladimir Shpilrain
exaly +4 more sources
On the Security of a Simple Three-Party Key Exchange Protocol without Server’s Public Keys [PDF]
The Scientific World Journal, 2014 Authenticated key exchange protocols are of fundamental importance in securing communications and are now extensively deployed for use in various real-world network applications.
Junghyun Nam +4 more
doaj +3 more sources
Key Exchange with the Help of a Public Ledger [PDF]
, 2017 Blockchains and other public ledger structures promise a new way to create globally consistent event logs and other records. We make use of this consistency property to detect and prevent man-in-the-middle attacks in a key exchange such as Diffie-Hellman or ECDH. Essentially, the MitM attack creates an inconsistency in the world views of the two honest
Bui Thanh, Aura Tuomas
openaire +4 more sources
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
IEEE Access, 2022 Public key algorithms are heavily used in many digital applications including key establishment schemes, secure messaging apps, and digital signature schemes in cryptocurrencies.
Basel Halak +2 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
New Subclass Framework and Concrete Examples of Strongly Asymmetric Public Key Agreement
Applied Sciences, 2021 Strongly asymmetric public key agreement (SAPKA) is a class of key exchange between Alice and Bob that was introduced in 2011. The greatest difference from the standard PKA algorithms is that Bob constructs multiple public keys and Alice uses one of ...
Satoshi Iriyama +2 more
doaj +1 more source
Implementation of a New Strongly-Asymmetric Algorithm and Its Optimization
Cryptography, 2020 A new public key agreement (PKA) algorithm, called the strongly-asymmetric algorithm (SAA-5), was introduced by Accardi et al. The main differences from the usual PKA algorithms are that Bob has some independent public keys and Alice produces her public ...
Koki Jimbo +2 more
doaj +1 more source
Public Key Protocols over Skew Dihedral Group Rings
Mathematics, 2022 This paper introduces skew dihedral group rings and their applications for public-key cryptography. We present a specific skew group ring that is the underlying algebraic platform for our cryptographic constructions.
Javier de la Cruz +2 more
doaj +1 more source
Improvement of the Efficiency of Neural Cryptography-Based Secret Key Exchange Algorithm
IEEE Access, 2023 Owing to new security threats and relevant changes in network computing environments, key exchange methods that replace conventional public key exchange algorithms are being researched.
Juyoung Kim +3 more
doaj +1 more source