منابع مشابه
Dealer-Leakage Resilient Verifiable Secret Sharing
Verifiable Secret Sharing (VSS) guarantees that honest parties reconstruct a consistent secret even in the presence of a malicious dealer that distributes invalid shares. We empower the dishonest dealer and consider the case when he subliminally leaks information in valid shares, allowing an adversary to access the secret prior to the reconstruction phase. We define the concept of Dealer-Leakag...
متن کاملControlled Quantum Secret Sharing
We present a new protocol in which a secret multiqubit quantum state |Ψ〉 is shared by n players and m controllers, where |Ψ〉 is the encoding state of a quantum secret sharing scheme. The players may be considered as field agents responsible for carrying out a task, using the secret information encrypted in |Ψ〉, while the controllers are superiors who decide if and when the task should be carrie...
متن کاملFault Analysis of Rabbit: Toward a Secret Key Leakage
Although Differential Fault Analysis (DFA) led to powerful applications against public key [15] and secret key [12] cryptosystems, very few works have been published in the area of stream ciphers. In this paper, we present the first application of DFA to the software eSTREAM candidate Rabbit that leads to a full secret key recovery. We show that by modifying modular additions of the next-state ...
متن کاملProactive Secret Sharing Or: How to Cope With Perpetual Leakage
Secret sharing schemes protect secrets by distributing them over diierent locations (share holders). In particular, in k out of n threshold schemes, security is assured if throughout the entire lifetime of the secret the adversary is restricted to compromise less than k of the n locations. For long-lived and sensitive secrets this protection may be insuucient. We propose an eecient proactive se...
متن کاملHow to Keep a Secret: Leakage Deterring Public-key Cryptography
How is it possible to prevent the sharing of cryptographic functions? This question appears to be fundamentally hard to address since in this setting the owner of the key is the adversary: she wishes to share a program or device that (potentially only partly) implements her main cryptographic functionality. Given that she possesses the cryptographic key, it is impossible for her to be prevented...
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ژورنال
عنوان ژورنال: Journal of Computers
سال: 2009
ISSN: 1796-203X
DOI: 10.4304/jcp.4.1.61-68