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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Enhancements to Bluetooth Baseband Security
Christian Gehrmann,Kaisa Nyberg +1 more
TL;DR: The problems discovered by Jakobsson and Wetzel are addressed, possible counter measures are developed, and a technique that offers reasonable protection against location tracking is described.
Proceedings ArticleDOI
A two-factor mobile authentication scheme for secure financial transactions
TL;DR: A novel two-factor authentication scheme whereby a Bluetooth-enabled handheld device is used to enforce basic password-based authentication thus improving convenience and usability and is readily adaptable to other more general contexts.
Posted Content
OPAQUE: An Asymmetric PAKE Protocol Secure Against Pre-Computation Attacks.
TL;DR: In this paper, the authors proposed an asymmetric password-authenticated key exchange (aPAKE) protocol, where the server stores a mapping of the password and security is required even upon server compromise, that is, the only allowed attack in this case is an (inevitable) offline exhaustive dictionary attack against individual user passwords.
Proceedings ArticleDOI
Authenticated Key Establishment Protocols for a Home Health Care System
TL;DR: It is shown how cryptographically weak physiological data can be used to establish keys between body sensors, where the sensors have no other prior secret, without the necessity of using traditional encryption.
Proceedings ArticleDOI
Analysis of the IPSec key exchange standard
R. Perlman,C. Kaufman +1 more
TL;DR: The purpose, history, and analysis of IKE, the current standard for key exchange for the IPSec protocol, is described, and the various protocols of Ike are discussed, and suggestions for improvement and simplification are made.
References
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Book ChapterDOI
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.