Encrypted key exchange: password-based protocols secure against dictionary attacks
Steven M. Bellovin,Michael Merritt +1 more
- pp 72-84
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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Patent
Trusted infrastructure support systems, methods and techniques for secure electronic commerce, electronic transactions, commerce process control and automation, distributed computing, and rights management
TL;DR: In this paper, the authors present an integrated, modular array of administrative and support services for electronic commerce and electronic rights and transaction management, which can be adapted to the specific needs of electronic commerce value chains.
Journal ArticleDOI
Key agreement in ad hoc networks
TL;DR: This paper considers a problem: a group of people in a meeting room do not have access to public key infrastructure or third party key management service, and they do not share any other prior electronic context, and how can they set up a secure session among their computers?
Proceedings Article
Stronger password authentication using browser extensions
TL;DR: A browser extension, PwdHash, that transparently produces a different password for each site, improving web password security and defending against password phishing and other attacks is described.
Journal ArticleDOI
Protecting poorly chosen secrets from guessing attacks
TL;DR: The basic idea is to ensure that data available to the attacker is sufficiently unpredictable to prevent an offline verification of whether a guess is successful or not and to examine protocols to detect vulnerabilities to such attacks.
Proceedings ArticleDOI
Fast dictionary attacks on passwords using time-space tradeoff
TL;DR: It is demonstrated that as long as passwords remain human-memorable, they are vulnerable to "smart-dictionary" attacks even when the space of potential passwords is large, calling into question viability of human- Memorable character-sequence passwords as an authentication mechanism.
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A Public Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms
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