Results 41 to 50 of about 6,675,706 (283)

Public Key Exchange Using Matrices Over Group Rings [PDF]

open access: yes, 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.
Kahrobaei, Delaram   +2 more
core   +2 more sources

Key-Privacy in Public-Key Encryption [PDF]

open access: yes, 2001
We consider a novel security requirement of encryption schemes that we call "key-privacy" or "anonymity". It asks that an eavesdropper in possession of a ciphertext not be able to tell which specific key, out of a set of known public keys, is the one under which the ciphertext was created, meaning the receiver is anonymous from the point of view of the
Mihir Bellare   +3 more
openaire   +1 more source

Analysis of common attacks in LDPCC-based public-key cryptosystems [PDF]

open access: yes, 2003
We analyze the security and reliability of a recently proposed class of public-key cryptosystems against attacks by unauthorized parties who have acquired partial knowledge of one or more of the private key components and/or of the plaintext.
D. Saad   +17 more
core   +2 more sources

The XTR Public Key System [PDF]

open access: yes, 2000
This paper introduces the XTR public key system. XTR is based on a new method to represent elements of a subgroup of a multiplicative group of a finite field. Application of XTR in cryptographic protocols leads to substantial savings both in communication and computational overhead without compromising security.
Lenstra, A.K., Verheul, E.R.
openaire   +1 more source

Matrično zasnovan algoritam za skrivanje tekstova i obradu informacija

open access: yesVojnotehnički Glasnik, 2014
Primena diferencijalne geometrije u skrivanju tekstualnih podataka prikazana je u ovom radu. Ta primena predstavlja generalizaciju prethodno predstavljenih metoda. Matrično vrednosne funkcije više promenljivih korišćene su u ovom radu.
Nenad O. Vesić, Dušan J. Simjanović
doaj   +1 more source

A Lightweight Certificateless Group Key Agreement Method without Pairing Based on Blockchain for Smart Grid

open access: yesFuture Internet, 2022
In smart grids, the access verification of a large number of intelligent gateways and terminal devices has become one of the main concerns to ensure system security.
Zhihao Wang, Ru Huo, Shuo Wang
doaj   +1 more source

Weak keys in the McEliece public-key cryptosystem [PDF]

open access: yesIEEE Transactions on Information Theory, 2001
Summary: We show that it is possible to know whether the secret Goppa code of an instance of the McEliece public-key cryptosystem was chosen with a binary generator polynomial. Furthermore, whenever such a weak key is used, we present an attack which can be completed, for codes of length 1024 and dimension 524, with a large, but feasible amount of ...
Pierre Loidreau, Nicolas Sendrier
openaire   +2 more sources

Efficient public-key cryptography with bounded leakage and tamper resilience [PDF]

open access: yes, 2016
We revisit the question of constructing public-key encryption and signature schemes with security in the presence of bounded leakage and tampering memory attacks.
A Faonio   +46 more
core   +2 more sources

Lattice‐based unidirectional Proxy Re‐Encryption and Proxy Re‐Encryption+ schemes

open access: yesIET Information Security, 2021
The concept of Proxy Re‐Encryption (PRE) was introduced by Blaze, Bleumer and Strauss at Eurocrypt in 1998. In this concept, a semi‐trusted proxy user acquires a re‐encryption key from the delegator.
Kunwar Singh   +3 more
doaj   +1 more source

Public-Key Cryptosystems Resilient to Key Leakage [PDF]

open access: yesSIAM Journal on Computing, 2009
Most of the work in the analysis of cryptographic schemes is concentrated in abstract adversarial models that do not capture side-channel attacks.
Moni Naor, Gil Segev 0001
openaire   +2 more sources

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