کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
427805 | 686560 | 2011 | 4 صفحه PDF | دانلود رایگان |

Identity based broadcast encryption allows a centralized transmitter to send encrypted messages to a set of identities S, so that only the users with identity in S can decrypt these ciphertexts using their respective private key. Recently [Information Processing Letters 109 (2009)], an identity-based broadcast encryption scheme was proposed (Ren and Gu, 2009) [1], and it was claimed to be fully chosen-ciphertext secure without random oracles. However, by giving a concrete attack, we indicate that this scheme is even not chosen-plaintext secure.
Research highlights
► We analyze a recent identity-based broadcast encryption scheme.
► We present a chosen-plaintext attack against this scheme.
► Our attack indicate that this scheme is even not chosen-plaintext secure.
Journal: Information Processing Letters - Volume 111, Issue 10, 30 April 2011, Pages 461–464