منابع مشابه
On public-key cryptosystems based on combinatorial group theory
We analyze and critique the public-key cryptosystem, based on combinatorial group theory, that was proposed by Wagner and Magyarik in 1984. This idea is actually not based on the word problem but on another, generally easier, premise problem. Moreover, the idea of the Wagner-Magyarik system is vague, and it is difficult to find a secure realization of this idea. We describe a public-key cryptos...
متن کاملComparison of two Public Key Cryptosystems
Since the time public-key cryptography was introduced by Diffie andHellman in 1976, numerous public-key algorithms have been proposed. Some of thesealgorithms are insecure and the others that seem secure, many are impractical, eitherthey have too large keys or the cipher text they produce is much longer than theplaintext. This paper focuses on efficient implementation and analysis of two mostpo...
متن کاملKey-Insulated Public Key Cryptosystems
Cryptographic computations (decryption, signature generation, etc.) are often performed on a relatively insecure device (e.g., a mobile device or an Internet-connected host) which cannot be trusted to maintain secrecy of the private key. We propose and investigate the notion of key-insulated security whose goal is to minimize the damage caused by secret-key exposures. In our model, the secret k...
متن کاملMultivariable public-key cryptosystems
Recently Landau and Diffie gave in a series of articles in the Notices of the American Mathematical Society [DL02, Lan01, Lan00a, Lan00b] and in the American Mathematical Monthly [Lan04] excellent expositions on how the theory of multivariable polynomials are used in cryptography. However they covered only half of the story. They covered only the theory of polynomials in symmetric or secret cry...
متن کاملMultivariate Public Key Cryptosystems
As the title says, this book is about Multivariate cryptography. Besides code-, latticeand hash-based cryptosystems, Multivariate cryptography is one of the main fields of cryptosystems which are believed to be secure against attacks with quantum computers. Multivariate cryptography deals with systems of nonlinear polynomial equations in several variables over a finite field which are difficult...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Discrete Mathematical Sciences and Cryptography
سال: 2021
ISSN: 0972-0529,2169-0065
DOI: 10.1080/09720529.2020.1796868