Encrypted key exchange: password-based protocols secure against dictionary attacks
Steven M. Bellovin,Michael Merritt +1 more
- pp 72-84
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TLDR
A combination of asymmetric (public-key) and symmetric (secret- key) cryptography that allow two parties sharing a common password to exchange confidential and authenticated information over an insecure network is introduced.Abstract:
Classic cryptographic protocols based on user-chosen keys allow an attacker to mount password-guessing attacks. A combination of asymmetric (public-key) and symmetric (secret-key) cryptography that allow two parties sharing a common password to exchange confidential and authenticated information over an insecure network is introduced. In particular, a protocol relying on the counter-intuitive motion of using a secret key to encrypt a public key is presented. Such protocols are secure against active attacks, and have the property that the password is protected against offline dictionary attacks. >read more
Citations
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Book ChapterDOI
Password-authenticated session-key generation on the internet in the plain model
TL;DR: This paper gives the first construction of a PAKE protocol that is secure in the plain model in the setting of concurrent self-composition in the fully concurrent setting and without requiring any trusted setup assumptions.
Book ChapterDOI
A scalable password-based group key exchange protocol in the standard model
Michel Abdalla,David Pointcheval +1 more
TL;DR: The protocol is based on the group key exchange protocol by Burmester and Desmedt and on the 2-party password-based authenticated protocols by Gennaro and Lindell, and by Katz, Ostrovsky, and Yung and can be instantiated under various computational assumptions, such as decisional Diffie-Hellman, quadratic residuosity, and N-residuosity.
Patent
Method for updating secret shared data in a wireless communication system
TL;DR: In this paper, a first party outputs a first random number as a first challenge wherein the first party is one of a network and a mobile, and the second party is the mobile if the first parties is the network, and if the second parties are the network if the one party is a mobile.
Book ChapterDOI
The Twist-AUgmented technique for key exchange
TL;DR: A new technique is presented —the so-called 'Twist-AUgmented' technique— which exploits specific properties of some elliptic curves, and avoids the need of any randomness extractor, and is compared with other solutions.
Using Horn Clauses for Analyzing Security Protocols
TL;DR: This chapter presents a method for verifying security protocols based on an abstract representation of protocols by Horn clauses, which is the foundation of the protocol verifier ProVerif and supports various cryptographic primitives defined by rewrite rules or equations.
References
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Book ChapterDOI
A Public Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms
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TL;DR: The goal of this book is to introduce the mathematical principles of data security and to show how these principles apply to operating systems, database systems, and computer networks.