supported by the Nature Science Foundation of China under grant 60970119, 60803149;the National Basic Research Program of China(973) under grant 2007CB311201
In this paper,we show how to use the dual techniques in the subgroups to give a secure identity-based broadcast encryption(IBBE) scheme with constant-size ciphertexts. Our scheme achieves the full security(adaptive se...
Project supported by the National Key Basic Research Program (973 Program) of China (No. 2007CB407206);the National Natural Science Foundation of China (No. 40621001);the Frontier Project of the Chinese Academy of Sciences (No. ISSASIP0715)
Due to the growing concern about the agricultural phosphorus (P) losses pollution, an in-depth understanding of P in paddy soils of China would be helpful in providing a national perspective of the environmental impac...