56 search results - page 5 / 12 » Chosen-Ciphertext Security from Identity-Based Encryption |
ACISP
2010
Springer
13 years 9 months ago
2010
Springer
We introduce the concept of attribute-based authenticated key exchange (AB-AKE) within the framework of ciphertext policy attribute-based systems. A notion of AKE-security for AB-A...
PAIRING
2009
Springer
14 years 2 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...
PKC
2005
Springer
14 years 28 days ago
2005
Springer
Abstract. We define and discuss symmetric subgroup membership problems and their properties, including a relation to the Decision DiffieHellman problem. We modify the Cramer-Shoup...
CRYPTO
2012
Springer
11 years 10 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 ...
IJCMAM
2010
13 years 4 months ago
2010
Commercial Web-based Personal-Health Record (PHR) systems can help patients to share their personal health records (PHRs) anytime from anywhere. PHRs are very sensitive data and an...