标题:Achieving short ciphertexts or short secret-keys for adaptively secure general inner-product encryption
作者:Okamoto, Tatsuaki ;Takashima, Katsuyuki
通讯作者:Okamoto, T
作者机构:[Okamoto, Tatsuaki ] NTT, Japan;[Takashima, Katsuyuki ] Mitsubishi Electric, Japan
会议名称:10th International Conference on Cryptography and Network Security, CANS 2011
会议日期:December 10, 2011 - December 12, 2011
来源:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
出版年:2011
卷:7092 LNCS
页码:138-159
DOI:10.1007/978-3-642-25513-7_11
摘要:In this paper, we present two non-zero inner-product encryption (NIPE) schemes that are adaptively secure under a standard assumption, the decisional linear (DLIN) assumption, in the standard model. One of the proposed NIPE schemes features constant-size ciphertexts and the other features constant-size secret-keys. Our NIPE schemes imply an identity-based revocation (IBR) system with constant-size ciphertexts or constant-size secret-keys that is adaptively secure under the DLIN assumption. Any previous IBR scheme with constant-size ciphertexts or constant-size secret-keys was not adaptively secure in the standard model. This paper also presents two zero inner-product encryption (ZIPE) schemes each of which has constant-size ciphertexts or constant-size secret-keys and is adaptively secure under the DLIN assumption in the standard model. They imply an identity-based broadcast encryption (IBBE) system with constant-size ciphertexts or constant-size secret-keys that is adaptively secure under the DLIN assumption. © 2011 Springer-Verlag.
收录类别:EI
资源类型:会议论文
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