Encrypted key exchange: password-based protocols secure against dictionary attacks
Steven M. Bellovin,Michael Merritt +1 more
- pp 72-84
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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Cryptanalysis of two provably secure cross-realm C2C-PAKE protocols
Raphael C.-W. Phan,Bok-Min Goi +1 more
TL;DR: It is shown that malicious servers can launch successful man-in-the-middle attacks on the variant by Byun et al., while the Yin-Bao variant inherits a weakness against unknown key-share attacks.
Proceedings ArticleDOI
A class of flexible and efficient key management protocols
TL;DR: A different general method for achieving freshness in this content is proposed, which has some practical advantages over previous published protocols.
Journal ArticleDOI
Simple authenticated key agreement protocol resistant to password guessing attacks
Her-Tyan Yeh,Hung-Min Sun +1 more
TL;DR: This paper presents a simple authenticated key agreement protocol called SAKA which is simple and cost-effective, and provides a formal proof of security to show its strength against both passive and active adversaries.
Patent
Key distribution system
TL;DR: In this article, the authors proposed a key distribution system where a server (20) issues a new secret communication key (K11), encrypts it using the secret value (R10) as a common key, and transmits it to the terminal (10).
Book ChapterDOI
Cryptanalysis of Two Password-Authenticated Key Exchange Protocols
TL;DR: This paper analyzes two PAKE protocols and shows that they are subject to dictionary attacks, and intends to emphasize that the attack is valid since the protocols neither select secure parameter p nor check the order of received values for achieving good efficiency.
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