IJNSEC
2008
13 years 4 months ago
2008
We improve a secret sharing scheme, which enables users select their personal keys by themselves instead of being distributed by group manager and users can reuse their personal k...
CCS
2001
ACM
13 years 8 months ago
2001
ACM
Encryption is widely used to enforce usage rules for digital content. In many scenarios content is encrypted using a group key which is known to a group of users that are allowed ...