3 papers
cs.CR2014
The Barth-Boneh-Waters Private Broadcast Encryption Scheme Revisited
Zhengjun Cao, Lihua Liu
The primitive of private broadcast encryption introduced by Barth, Boneh and Waters, is used to encrypt a message to several recipients while hiding the identities of the recipient…
cs.CR2014
Remarks on the Cryptographic Primitive of Attribute-based Encryption
Zhengjun Cao, Lihua Liu
Attribute-based encryption (ABE) which allows users to encrypt and decrypt messages based on user attributes is a type of one-to-many encryption. Unlike the conventional one-to-one…
cs.CR2014
A Note on the Bellare-Rivest Protocol for Translucent Cryptography
Zhengjun Cao, Lihua Liu
We remark that the Bellare-Rivest protocol for translucent cryptography [J. Cryptology (1999) 12: 117-139] can not truly enable the government to decrypt partial encrypted communic…