Title :
Fuzzy Identity Based Encryption Scheme with Some Assigned Attributes
Author :
Li, XiMing ; Yang, Bo ; Guo, YuBin
Author_Institution :
Coll. of Inf., South China Agric. Univ., Guangzhou, China
Abstract :
In this paper the concept of fuzzy IBE schemes with some fixed attributes (SAA-FIBE) is proposed and one construction of it is presented. SAA-FIBE scheme can be viewed as a variant of SW scheme described in which demanding no fixed positive or negative attributes. In our scheme, a user with identity omega can decrypt the message that is encrypted with a set of attributes, omega´, if and only if |omega´ capomega| ges d and omega must have or must have not some attributes described in encryption policy. The scheme are both error-tolerant and secure against collusion attacks in the SPID-FIBE attack model.
Keywords :
cryptography; fuzzy set theory; SPID-FIBE attack model; collusion attacks; fuzzy identity based encryption scheme; identity-based cryptosystems; message decryption; Educational institutions; Fuzzy sets; Hair; Identity-based encryption; Informatics; Information security; Public key; Public key cryptography; Social network services; Attribute-Based Encryption; Decisional Bilinear Diffie-Hellman Assumption; Encryption Policy; Fuzzy Identity-Based Encryption;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.145
