With recent advances of quantum computation, new threats have closed in upon to the classical public key cryptosystems. In order to build more secure bit commit
B. Libert and J. Quisquater proposed an identity(ID)-based threshold decryption scheme. This paper found flaw in their security reduction and presented two meth
During the last decade, China rare earth (RE) industry has made significant progress and become one of the most important producers in the world. In this paper,
Solvent extraction is now finding applications in a broader range of fields than the past. Many of these applications require process equipment with shorter con