Results 101 to 110 of about 5,578 (218)
Cryptanalysis of REESSE1+ Public Key Cryptosystem [PDF]
A new public key cryptosystem, called REESSE1+, was proposed. REESSE1 consists of two primitive algorithms, a public key encryptio/decryption algorithm and a digital signature algorithm.
Fangguo Zhang, Shengli Liu
core
A Quasigroup-Based Public-Key Cryptosystem
A public-key cryptosystem, using generalized quasigroup-based streamciphers is presented. It is shown that such a cryptosystem allows one to transmit securely both a cryptogram and a secret portion of the enciphering key using the same insecure channel ...
Kościelny, Cz., Mullen, G. L.
core
Further research on public-key cryptosystems based on third-order recurrence sequence
Properties of third-order recurrence sequences were investtgated and a new variant of GH public-key cryptosystem was proposed. It is further improved to be a probabilistic public-key cryptosystem.
JIANG Zheng-tao 1 +3 more
doaj +2 more sources
A Comment on Niederreiter’s Public Key Cryptosystem [PDF]
In this comment we show that a recently proposed public key cryptosystem is not safe for most of the practical cases. Furthermore, it is shown that the security of this system is closely connected with the problem of computing logarithms over a finite field.
openaire +1 more source
New trapdoor-knapsack public-key cryptosystem [PDF]
The paper presents a new trapdoor-knapsack public-key cryptosystem. The encryption equation is based on the general modular knapsack equation, but, unlike the Merkle-Hellman scheme, the knapsack components do not have to have a superincreasing structure.
Goodman, R. M. F., McAuley, A. J.
core
Public-Key Cryptosystem Based On
A new general mathematical problem, suitable for publickey cryptosystems, is proposed: morphism computation in a category of Abelian groups. In connection with elliptic curves over finite fields, the problem becomes the following: compute an isogeny ...
Anton Stolbunov +2 more
core
New Public-key Cryptosystem Using Braid Groups
1 Introduction 1.1 Background and previous results Since Diffie and Hellman first presented a public-key cryptosystem(PKC) in [11]using a trapdoor one-way function, many PKC's have been proposed and ...
Jae Woo Han +5 more
core +1 more source
On a new fast public key cryptosystem [PDF]
This paper presents a new fast public key cryptosystem namely: a key exchange algorithm, a public key encryption algorithm and a digital signature algorithm, based on the difficulty to invert the following function: F (x) = (a × x)Mod(2p)Div(2q). Mod is
Samir Bouftass
core +1 more source
Analysis of the MQQ Public Key Cryptosystem
MQQ is a multivariate cryptosystem based on multivariate quadratic quasigroups and the Dobbertin transformation [18]. The cryptosystem was broken both by Gröbner bases computation and MutantXL[27]. The complexity of Gröbner bases computation is exponential in the degree of regularity, which is the maximum degree of polynomials occurring during the ...
Faugère, Jean-Charles +3 more
openaire +2 more sources
A Public Key Cryptosystem Based On A Subgroup Membership Problem
We present a novel public key encryption scheme semantically secure in the standard model under the intractability assumption of a subgroup membership problem related to the factorization ...
Gonzalez Nieto, Juan M. +2 more
core +1 more source

