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Paper 2011/523
Security analysis of a fuzzy identity-based encryption scheme
Miaomiao Tian, Liusheng Huang, and Wei Yang
Abstract
A fuzzy identity-based encryption scheme allows a ciphertext encrypted under an identity $ID^*$ to be decrypted using a secret key corresponding to the identity $ID$ which is close to $ID^*$ as measured by some metric. Recently, Ren et al. proposed a new fuzzy identity-based encryption scheme and proved that it is fully chosen-ciphertext secure in the standard model. However, in this paper, we will show that their fuzzy identity-based encryption scheme is even not chosen-plaintext secure.
Metadata
- Available format(s)
- -- withdrawn --
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- CryptanalysisFuzzy identity-based encryptionChosen-ciphertext secureChosen-plaintext secure
- Contact author(s)
- miaotian @ mail ustc edu cn
- History
- 2012-02-20: withdrawn
- 2011-09-25: received
- See all versions
- Short URL
- https://ia.cr/2011/523
- License
-
CC BY
