A Method for Key Updating of IBE with Wildcards

Lu Wang

doi:10.4028/www.scientific.net/AMR.765-767.1003

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 765-767A Method for Key Updating of IBE with Wildcards

A Method for Key Updating of IBE with Wildcards

Abstract:

A variety of identity-based encryption mechanisms are gradually developed since BF-IBE was proposed in 2001. However, since a users public key is fully open and cannot be modified, the key update issue needs to be solved urgently. And at the same time, hierarchical IBE has been proposed to reduce the burden of a single PKG. The paper suggests wildcards and put forward WIBE, which can make one-time encryption for user groups of HIBE. Then WKU is put out based on WIBE, which is a key updating mechanism in the measure of years and manages the expiration date of users keys.

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Periodical:

Advanced Materials Research (Volumes 765-767)

Pages:

1003-1006

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.765-767.1003

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Online since:

September 2013

Authors:

Lu Wang

Keywords:

Identity-Based Encryption, Key Management, Wildcards

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