Results 1 to 10 of about 46 (35)

Kleptography in Authentication Protocols: Why is it Still Possible?

EICC 2022: Proccedings of the European Interdisciplinary Cybersecurity Conference, 2022
Network authentication frequently relies on nonces, and even widely deployed protocols still rely on random nonces, although they might enable kleptography attacks. Notably, for TLS a kleptography-based covert channel has been published, and despite a proposal to cure this weakness via controlled randomness including backward compatibility, the ...
Jörg Keller, Sebastian Litzinger, Carina Heßeling   +2 more
exaly   +2 more sources

Kleptographic Attack on Elliptic Curve Based Cryptographic Protocols

IEEE Access, 2020
Kleptography is the study of pilfering secure data secretly and subliminally. The concept of inserting backdoors was introduced two decades ago by Young and Yung. However, still it is a serious threat for modern cryptography.
Rabia Latif, Rana Aamir Raza Ashfaq, Mehreen Afzal   +2 more
exaly   +3 more sources

FIDO2 Facing Kleptographic Threats By-Design

Applied Sciences (Switzerland)
We analyze the popular in practice FIDO2 authentication scheme from the point of view of kleptographic threats that have not been addressed so far in the literature.
Przemyslaw Kubiak, Anna Lauks-Dutka, Miroslaw Kutylowski   +2 more
exaly   +3 more sources

Leveraging kleptography to strengthen post-quantum cryptography

Cryptography and Communications
Abstract Quantum computing poses a significant threat to the security of many current cryptographic algorithms. This imminent risk has accelerated the development and standardization of new cryptosystems, known as post-quantum cryptosystems and designed to protect digital information in the quantum era using classical computing resources ...
Pino Caballero-Gil
exaly   +2 more sources

Kleptography and Steganography in Blockchains [PDF]

, 2020
Despite its vast proliferation, the blockchain technology is still evolving, and witnesses continuous technical innovations to address its numerous unresolved issues. An example of these issues is the excessive electrical power consumed by some consensus protocols.
Adam L. Young, Moti Yung
  +5 more sources

Algorithm Substitution Attacks: State Reset Detection and Asymmetric Modifications

IACR Transactions on Symmetric Cryptology, 2021
In this paper, we study algorithm substitution attacks (ASAs), where an algorithm in a cryptographic scheme is substituted for a subverted version.
Philip Hodges, Douglas Stebila
doaj   +1 more source

Efficient Secure Computation from SM Series Cryptography

Wireless Communications and Mobile Computing, Volume 2023, Issue 1, 2023., 2023
The wireless network suffers from many security problems, and computation in a wireless network environment may fail to preserve privacy as well as correctness when the adversaries conduct attacks through backdoors, steganography, kleptography, etc. Secure computation ensures the execution security in such an environment, and compared with computation ...
Yibiao Lu, Zecheng Wu, Bingsheng Zhang, Kui Ren, Nan Li   +4 more
wiley   +1 more source

Implications of the Arithmetic Ratio of Prime Numbers for RSA Security

International Journal of Applied Mathematics and Computer Science, 2023
The most commonly used public key cryptographic algorithms are based on the difficulty in solving mathematical problems such as the integer factorization problem (IFP), the discrete logarithm problem (DLP) and the elliptic curve discrete logarithm ...
Ivanov Andrey, Stoianov Nikolai
doaj   +1 more source

The Applications of Blockchain in the Covert Communication

Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022
Covert communication is designed for hiding the subliminal communication which takes place between both of the speakers and their relationship. The traditional covert communication utilizes the centralized channel and the third‐party central node or authority to distribute messages which leads to a lack of undetectability, antitraceability, and ...
Bangyao Du, Debiao He, Min Luo, Cong Peng, Qi Feng, Antonio Guerrieri   +5 more
wiley   +1 more source

Covert Communication Scheme Based on Bitcoin Transaction Mechanism

Security and Communication Networks, Volume 2021, Issue 1, 2021., 2021
Due to the unique characteristics of blockchain, such as decentralization, anonymity, high credibility, and nontampering, blockchain technologies have become an integral part of public data platforms and public infrastructure. The communication between the stakeholders of a given blockchain can be used as a carrier for covert communication under cover ...
Shanyun Huang, Wenyin Zhang, Xiaomei Yu, Jiuru Wang, Wanshui Song, Bei Li, Marimuthu Karuppiah   +6 more
wiley   +1 more source