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Identity based broadcast encryption based on one to many identity based proxy re-encryption

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Broadcast encryption schemes enable senders to efficiently broadcast ciphertexts to a large set of receivers in a way that only non-revoked receivers can decrypt them. Identity based broadcast encryption schemes are public key broadcast encryption using identity as the public key. In this paper, we show a novel way to construct identity based broadcast encryption. We introduce a new concept: one to many identity based proxy reencryption. And we show how to construct efficient identity based broadcast encryption based on this primitive. Our scheme can achieve constant size public keys and private keys and linear size ciphertext. But our scheme no longer needs explicitly describing receiver set while all the other schemes need. Thus our scheme is an efficient broadcast encryption scheme compared with other schemes.

源语言英语
主期刊名Proceedings - 2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009
47-50
页数4
DOI
出版状态已出版 - 2009
已对外发布
活动2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009 - Beijing, 中国
期限: 8 8月 200911 8月 2009

出版系列

姓名Proceedings - 2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009

会议

会议2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009
国家/地区中国
Beijing
时期8/08/0911/08/09

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