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Toward constant size CCA-secure multi-hop proxy re-encryption

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3 Author(s)
Junru Hu ; Key Lab. of Inf. & Network Security Eng., Coll. of Chinese Armed Police Force, China ; Xu An Wang ; Minqing Zhang

Blaze et al. in 1998 introduced the concept of proxy re-encryption, which allows a proxy to transform a ciphertext computed under Alice's public key into one that can be opened under Bob's decryption key. But until now, the problem of constructing a constant-size CCA-secure multi-hop proxy re-encryption scheme remain open. In this paper, we try to solve this open problem by presenting a somewhat constant-size CCA-secure multi-hop proxy re-encryption scheme.

Published in:

Signal Processing Systems (ICSPS), 2010 2nd International Conference on  (Volume:1 )

Date of Conference:

5-7 July 2010