INFORMATICALT
2010
13 years 9 months ago
2010
A Group-Oriented Cryptosystem (GOC) allows a sender to encrypt a message sent to a group of users so only the specified sets of users in that group can cooperatively decrypt the me...
ASIACRYPT
2001
Springer
14 years 5 months ago
2001
Springer
Abstract. Semantic security against chosen-ciphertext attacks (INDCCA) is widely believed as the correct security level for public-key encryption scheme. On the other hand, it is o...