Security Analysis of Broadcast Encryption System Based on 2-Subset Difference Method
نویسندگان
چکیده
منابع مشابه
2-Subset Difference Scheme for Broadcast Encryption
Abstract. Broadcast Encryption allows a center to broadcast encrypted messages to a set of users so that only privileged users can decrypt them. In this paper, we propose an efficient broadcast encryption scheme based on the “Subset Difference” (SD) scheme. It reduces the transmission overhead by 50 percent while the storage overhead remains the same but the computational overhead somewhat incr...
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The Subset Difference (SD) method proposed by Naor-Naor-Lotspeich is the most popular broadcast encryption (BE) scheme. It is suitable for real-time applications like Pay-TV. It has been suggested for use by the AACS standard for digital rights management in Blu-Ray and DVD discs. The SD method assumes the number of users to be a power of two. (1) We propose the Complete Tree Subset Difference ...
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Broadcast encryption (BE) deals with secure transmission of a message to a group of receivers such that only an authorized subset of receivers can decrypt the message. The transmission cost of a BE system can be reduced considerably if a limited number of free riders can be tolerated in the system. In this paper, we study the problem of how to optimally place a given number of free riders in a ...
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This paper puts forward an efficient broadcast encryption in public key setting employing ternary tree subset difference method for revocation. It provides outsider anonymity disabling the revoked users from getting any information of message and concealing the set of subscribed users from the revoked users. Our approach utilizes composite order bilinear group setting and exhibits significant i...
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Recently, Ren and Gu proposed a new identity-based broadcast encryption scheme, and claimed that their scheme is secure against chosen-ciphertext attack in the standard model. However, by giving a concrete attack, we indicate that Ren and Gu’s scheme is even not secure against chosen-plaintext attack. Keywordsidentity based broadcast encryption, chosen-ciphertext attack, chosen-plaintext attack...
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ژورنال
عنوان ژورنال: Journal of Broadcast Engineering
سال: 2014
ISSN: 1226-7953
DOI: 10.5909/jbe.2014.19.4.502