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
Making Password Authenticated Key Exchange Suitable for Resource-Constrained Industrial Control Devices
Björn Haase,Benoît Labrique +1 more
TL;DR: Connectivity becomes increasingly important also for small embedded systems such as typically found in industrial control installations, where secure remote user access increasingly incorporating handheld based human machine interfaces, using wireless links such as Bluetooth.
Book ChapterDOI
Robust and Secure Password and Key Change Method
TL;DR: A novel and very simple approach to changing passwords/keys is presented and analyzed, which provides a means for human users and service programs to change passwords and keys in a robust and secure fashion.
Journal ArticleDOI
nPAKE + : a tree-based group password-authenticated key exchange protocol using different passwords
TL;DR: The nPAKE+ protocol is a novel combination of the hierarchical key tree structure and the password-based Diffie-Hellman exchange that achieves substantial gain in computation efficiency and proves the security of the protocol under the random oracle model and the ideal cipher model.
Proceedings ArticleDOI
Password Protected Credentials
Yanjiang Yang,Feng Bao +1 more
TL;DR: The basic idea of the approach is that the server issues to each user a credential for authentication, and the users protect their credentials using passwords, which is shown to be secure against off-line guessing attacks under the DDH assumption.
Engineering Privacy for Mobile Health Data Collection Systems in the Primary Care
TL;DR: A mobile health systems empower Community Health Workers (CHWs) around the world, by supporting the provisioning of Community-Based Primary Health Care (CBPHC) – primary care outside the heath system.
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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.
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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.