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Open AccessProceedings ArticleDOI

Encrypted key exchange: password-based protocols secure against dictionary attacks

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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. >

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Book ChapterDOI

Password-Authenticated Key Exchange between Clients in a Cross-Realm Setting

Shuhua Wu, +1 more
TL;DR: This paper proposes a provably secure password-authenticated key exchange protocol in a cross-realm setting where two clients in different realms obtain a secret session key as well as mutual authentication, with the help of respective servers.
Proceedings ArticleDOI

Strongly Password-Based Three-Party Authenticated Key Exchange Protocol

TL;DR: This paper proposes a strongly password-based three-party authenticated key exchange protocol based on the Diffie-Hellman key exchange idea and a one-way hash function, and shows the proposed protocol is secure and it can meet a series of security attributes.
Posted Content

Provably Secure Three-party Password Authenticated Key Exchange Protocol Based On Ring Learning With Error.

TL;DR: This paper constructs the first 3PAKE protocol from lattices, proves its security in the random oracle model, and implements the proposed protocol using LatticeCrypto, a promising post-quantum cryptography approach.
Journal ArticleDOI

Delayed password disclosure

TL;DR: A new authentication protocol called Delayed Password Disclosure is presented, aimed at reducing the effectiveness of phishing/spoofing attacks that are becoming increasingly problematic for Internet users by providing the user with dynamic feedback while password entry occurs.
Journal ArticleDOI

Towards Isogeny-Based Password-Authenticated Key Establishment

TL;DR: This work proposes the first quantum-resistant password-authenticated key exchange scheme based on supersingular elliptic curve isogenies, which uses the password to generate permutations which obscure the auxiliary points.
References
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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.
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