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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Journal ArticleDOI
Verified indifferentiable hashing into elliptic curves
TL;DR: This work presents a machine-checked proof of the first generic construction for hashing into ordinary elliptic curves indifferentiable from a random oracle, based on an extension of the CertiCrypt framework with logics and mechanized tools for reasoning about approximate forms of observational equivalence, and integrates mathematical libraries of group theory and elliptic curve.
Proceedings Article
Identity-based password-authenticated key exchange for client/server model
Xun Yi,Raylin Tso,Eiji Okamoto +2 more
TL;DR: This paper proposes a PAKE-CS protocol on the basis of identity-based encryption, where the client needs to remember a password only while the server keeps the password in addition to a private key related to his identity,where the private key is generated by multiple private key generators.
Secure two-party computation and communication
TL;DR: This dissertation addresses several issues that arise in protecting communication between parties, as well as in the area of secure function evaluation, including a very efficient information-theoretic reduction from the problem of secure evaluation of a polysize formula to Oblivious Transfer.
Journal ArticleDOI
Cryptanalysis of an efficient three-party password-based key exchange scheme
TL;DR: It is shown that the 3PAKE protocol is vulnerable to key‐compromise impersonation and offline password guessing attacks from system insiders or outsiders, which indicates that the empirical approach used to evaluate the scheme's security is flawed.
Proceedings ArticleDOI
SCAPACH: Scalable Password-Changing Protocol for Smart Grid Device Authentication
TL;DR: A SCalable and Automated PAssword- CHanging protocol, SCAPACH, for unique authentication of human personnel (operator) and secure collection of telemetric data from a large number of pole devices is presented.
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A Public Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms
TL;DR: In this article, a new signature scheme is proposed together with an implementation of the Diffie-Hellman key distribution scheme that achieves a public key cryptosystem and the security of both systems relies on the difficulty of computing discrete logarithms over finite fields.
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Cryptography and data security
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.