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
More filters
Journal ArticleDOI
User location privacy protection mechanism for location-based services
Yan He,Jiageng Chen +1 more
TL;DR: This paper establishes a strong identity verification mechanism to ensure the authentication security of the system, and design a new location privacy protection mechanism based on the privacy proximity test problem, which meets the service provider’s requirements for related data.
Book ChapterDOI
nPAKE+: a hierarchical group password-authenticated key exchange protocol using different passwords
TL;DR: The nPAKE+ protocol proposed in this article combines the hierarchical key tree structure and the password-based Diffie-Hellman exchange, and achieves substantial gain in computation efficiency.
Journal ArticleDOI
An Improvement of a Simple Authenticated Key Agreement Algorithm
Eric Jui-Lin Lu,Min-Shiang Hwang +1 more
TL;DR: The SAKA method is improved which is simpler than the SAKa algorithm and can defeat both the man-in-the-middle and guessing attacks.
Journal ArticleDOI
Provably secure extended chaotic map-based three-party key agreement protocols using password authentication
TL;DR: This paper presents a novel three-party key agreement protocol using password authentication, which enables each client sharing a long-lived secret only with a trusted server to exchange confidential and authenticated information with another client over an insecure network via the server.
Posted Content
Prompted User Retrieval of Secret Entropy: The Passmaze Protocol.
TL;DR: A prompting protocol permits users to securely retrieve secrets with greater entropy than passwords, which can have enough entropy to be used to derive cryptographic keys.
References
More filters
Journal ArticleDOI
New Directions in Cryptography
TL;DR: This paper suggests ways to solve currently open problems in cryptography, and discusses how the theories of communication and computation are beginning to provide the tools to solve cryptographic problems of long standing.
Journal ArticleDOI
A method for obtaining digital signatures and public-key cryptosystems
TL;DR: An encryption method is presented with the novel property that publicly revealing an encryption key does not thereby reveal the corresponding decryption key.
Journal ArticleDOI
A public key cryptosystem and a signature scheme based on discrete logarithms
TL;DR: A new signature scheme is proposed, together with an implementation of the Diffie-Hellman key distribution scheme that achieves a public key cryptosystem that relies on the difficulty of computing discrete logarithms over finite fields.
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.
Book
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.