Paper Info
Title
Reconsideration on the security of the boneh-franklin identity-based encryption scheme
Abstract
The Boneh-Franklin identity-based encryption (BF-IBE) scheme [6] is well-known as a fully functional identity-based encryption (IBE) scheme. Recently, Galindo [13] pointed out a flaw in the original proof of the security of the BF-IBE scheme. He claims that its security can be fixed without changing both the scheme and the underlying assumption if the efficiency of the security reduction is sacrificed. This result would be bad news for many cryptographic schemes [1,7,10,15] that are based on the BF-IBE scheme because an inefficient security reduction would imply either the lower security level or the use of larger key sizes to attain a given security level. In this paper, we give a new proof of the security of the BF-IBE scheme, showing that it has a tighter security reduction than had been previously believed.
Year
DOI
Venue
2005
10.1007/11596219_22
international conference on cryptology in india
Keywords
DocType
Volume
tighter security reduction,security level,new proof,security reduction,inefficient security reduction,boneh-franklin identity-based encryption,cryptographic scheme,boneh-franklin identity-based encryption scheme,lower security level,bf-ibe scheme,functional identity-based encryption,cryptography,encryption
Conference
3797
ISSN
ISBN
Citations 
0302-9743
3-540-30805-9
3
PageRank 
References 
Authors
0.39
20
1
Name
Order
Citations
PageRank
Mototsugu Nishioka1212.80