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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Journal ArticleDOI
Cryptanalysis of an e_cient three-party password-based key exchange scheme
Eun-Jun Yoon,Kee-Young Yoo +1 more
TL;DR: LH-3PAKE scheme is vulnerable to o_-line password guessing attacks by an attacker, as demonstrated in this paper.
Journal ArticleDOI
Efficient three-party encrypted key exchange using trapdoor functions
TL;DR: This investigation presents a novel efficient and secure 3PEKE protocol using a super-poly-to-one trapdoor function that retains security requirements and possesses lower computational cost but also has fewer transmissions and realizes the lower bounds of communications.
Structured and Efficient Password-Based Group Key Agreement Protocol.
TL;DR: This paper designs a new structured and efficient password-based group key agreement protocol, which has a general structure to realize N-party PGKA scheme with members revocation or join easily and proves the security of the new PGKA protocol which based on the DDH assumption under the random-oracle and ideal-cipher models.
Proceedings ArticleDOI
TrustID: trustworthy identities for untrusted mobile devices
TL;DR: This paper introduces protocols for securely deriving identities from a strong root identity into the SE inside the smartphone as well as for using the newly derived IDs, which do not require a trustworthy smartphone operating system or a Trusted Execution Environment.
Book ChapterDOI
Formal Methods Analysis of the Secure Remote Password Protocol
Alan T. Sherman,Erin Lanus,Moses Liskov,Edward Zieglar,Richard Chang,Enis Golaszewski,Ryan Wnuk-Fink,Cyrus J. Bonyadi,Mario Yaksetig,Ian Blumenfeld +9 more
TL;DR: In this article, the Secure Remote Password (SRP) protocol was analyzed for structural weaknesses using the Cryptographic Protocol Shapes Analyzer (CPSA) in the first formal analysis of SRP (specifically, Version 3).
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