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01-Applied Mathematics & Information Sciences
An International Journal
               
 
 
 
 
 
 
 
 
 
 
 
 
 

Content
 

Volumes > Volume 09 > No. 4

 
   

Forward-Secure Identity-based Broadcast Encryption Scheme from Lattice

PP: 1993-2000
Author(s)
Xinwen Zhang, Shangping Wang,
Abstract
Motivated by an identity-based broadcast encryption scheme from lattice[1] and a forward-secure identity-based encryption scheme[2], we propose a forward-secure identity-based broadcast encryption scheme from lattice by adding the forward-security mechanism on broadcast encryption scheme. Our scheme satisfies the security requirements of both the broadcast encryption scheme and forward-security scheme, that is, it is forward-secure for the secret keys used previously, and we prove that it is semantic secure based on LWE (Learning With Error)assumption[3] in the random oracle model. In addition, our construction is believed to be secure against quantum computer.

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