An Identity-Based (IDB) Broadcast Encryption Scheme with Personalized Messages (BEPM)
نویسندگان
چکیده
منابع مشابه
An Identity-Based (IDB) Broadcast Encryption Scheme with Personalized Messages (BEPM).
A broadcast encryption scheme with personalized messages (BEPM) is a scheme in which a broadcaster transmits not only encrypted broadcast messages to a subset of recipients but also encrypted personalized messages to each user individually. Several broadcast encryption (BE) schemes allow a broadcaster encrypts a message for a subset S of recipients with public keys and any user in S can decrypt...
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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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Motivated by an identity-based broadcast encryption scheme from lattice[1] and a forward-secure identity-based encryption scheme[2], we propose a forward-secure identity-based broadcast encryption scheme from lattice by adding the forward-security mechanism on broadcast encryption scheme. Our scheme satisfies the security requirements of both the broadcast encryption scheme and forward-security...
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Motivated by the lattice basis delegation technique due to [8], we propose an adaptively secure identity-based broadcast encryption(IBBE) scheme based on the hard worst-case lattice problems. Our construction can be generalized to a hierarchical IBBE (HIBBE) easily. Using the method in [1], we also modify our basic construction to obtain an IBBE in the standard model. To the best of the authors...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2015
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0143975