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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Book ChapterDOI
Public-Key Encryption Indistinguishable Under Plaintext-Checkable Attacks
TL;DR: A weaker notion of security for public-key encryption, termed indistinguishability under plaintext-checking attacks (IND-PCA), is considered, in which the adversary is only given access to an oracle which says whether or not a given ciphertext encrypts a given message.
Patent
Method and apparatus for secure validation of tokens
TL;DR: In this paper, a method for validating a cryptographic token is presented, which includes (a) operating the cryptographic token to generate a pseudo-random number for authentication purposes by using a cryptographic seed uniquely associated with the cryptographic tokens, the cryptographic seed having been cryptographically generated using a precursor value, and (b) receiving a first value from the cryptosystem, the first value being the pseudoregressive number generated by the crypto-token.
Journal Article
Enhancements of a Three-Party Password-Based Authenticated Key Exchange Protocol
Shuhua Wu,Kefei Chen,Yuefei Zhu +2 more
TL;DR: This paper discusses the security for a simple and efficient three"party password"based authenticated key exchange protocol proposed by Huang most recently and proposes an enhanced protocol that can defeat the attacks described and yet is reasonably efficient.
Patent
Methods and systems for universal storage and access to user-owned credentials for trans-institutional digital authentication
William Locke Brown,Nolan Smith,Ethan Landau,Robert Paul,Man Nguyen,Sahibzada Mohammad Ibrahim Ali Khan Ibrahim Pataudi +5 more
TL;DR: In this article, an approach for an improved method, system, and computer program product that performs zero-knowledge proof of knowledge of user identification and authentication for a decentralized, trustless storage and management using one or more distributed ledger systems is described.
Book ChapterDOI
ID-Based Two-Server Password-Authenticated Key Exchange
Xun Yi,Feng Hao,Elisa Bertino +2 more
TL;DR: A compiler is presented that transforms any two-party PAKE protocol to a two-server PAke protocol which achieves implicit authentication with only two communications between the client and the servers and can be proven to be secure without random oracles.
References
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Journal ArticleDOI
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Book ChapterDOI
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