28 search results - page 1 / 6 » Generalized Key Delegation for Hierarchical Identity-Based E... |
ESORICS
2007
Springer
13 years 11 months ago
2007
Springer
CRYPTO
2006
Springer
13 years 8 months ago
2006
Springer
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
ASIACRYPT
2005
Springer
13 years 10 months ago
2005
Springer
In this paper, we discuss non-interactive updating of decryption keys in identity-based encryption (IBE). IBE is a public key cryptosystem where a public key is an arbitrary strin...
ASIACRYPT
2008
Springer
13 years 7 months ago
2008
Springer
Abstract. We provide a general framework for constructing identitybased and broadcast encryption systems. In particular, we construct a general encryption system called spatial enc...
CRYPTO
2012
Springer
11 years 7 months ago
2012
Springer
We give the first proof of security for an identity-based encryption scheme in the quantum random oracle model. This is the first proof of security for any scheme in this model ...