Improved Efficiency for CCA-Secure Cryptosystems Built Using Identity-Based Encryption

Improved Efficiency for CCA-Secure Cryptosystems Built Using Identity-Based Encryption
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DOI:
10.1007/978-3-540-30574-3_8
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发表时间:
2005-02
期刊:
IACR Cryptol. ePrint Arch.
影响因子:
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通讯作者:
D. Boneh;Jonathan Katz
D. Boneh;Jonathan Katz
中科院分区:
其他
文献类型:
--
作者:
D. Boneh;Jonathan Katz

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最近,Canetti,Halevi和Katz展示了一种从标准模型中的基于身份的加密方案构造CCA安全加密方案的通用方法。我们提高了他们的建设效率,并显示了两个具体的实例,我们所得到的方案,提供最有效的加密(和,在一种情况下,密钥生成)的任何CCA安全加密方案的日期。
Recently, Canetti, Halevi, and Katz showed a general method for constructing CCA-secure encryption schemes from identity-based encryption schemes in the standard model. We improve the efficiency of their construction, and show two specific instantiations of our resulting scheme which offer the most efficient encryption (and, in one case, key generation) of any CCA-secure encryption scheme to date.