PST
2004
14 years 5 months ago
2004
This paper presents the first mediated hierarchical identity-based encryption and signature schemes. Both schemes are designed to support information access control in hierarchical...
ICISC
2003
14 years 5 months ago
2003
Binary tree encryption (BTE), a relaxation of hierarchical identity-based encryption (HIBE), has recently emerged as a useful and intriguing primitive. On the one hand, the defini...
PAIRING
2009
Springer
14 years 11 months ago
2009
Springer
A number of previous papers explored the notion of identity-based group signature. We present a generic construction of identity-based group signatures. Our construction is based o...