Encrypted key exchange: password-based protocols secure against dictionary attacks
Steven M. Bellovin,Michael Merritt +1 more
- pp 72-84
Reads0
Chats0
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
Book ChapterDOI
Anonymous password-based authenticated key exchange
TL;DR: An anonymous password-based authenticated key exchange scheme that allows a user in a group to establish a session key with a server in an anonymous way and is secure against the dictionary attack is proposed.
Patent
System and method for provisioning and authenticating via a network
Winget Nancy Cam,Hao Zhou,Mark Krischer,Joseph Salowey,Jeremy Stieglitz,Saar Gillai,Padmanabha C. Jakkahalli +6 more
TL;DR: In this paper, the authors present a system and method for mutual authentication by using a shared secret to establish a tunnel used to protect weaker authentication methods (e.g. user names and passwords).
Proceedings ArticleDOI
Cryptographic protocol flaws: know your enemy
TL;DR: A classification of protocol flaws, including two new flaws in an application of the mental poker protocol, is provided, and appropriate countermeasures for relevant flaw-categories are discussed.
Journal ArticleDOI
Provably secure threshold password-authenticated key exchange
TL;DR: These are the first protocols which are provably secure in the standard model (i.e., no random oracles are used for the proof of security) and are reasonably efficient and implementable in practice.
Proceedings ArticleDOI
Limitations on design principles for public key protocols
TL;DR: Limitations and exceptions are offered on some of the previously given basic design principals of public key protocols, especially on the order of signature and encryption, but other principles are discussed as well.
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.