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The Hua'aobaote Pb‐Zn‐Ag Polymetallic orefield is situated in the southern section of the Great Xing'an Range (GXAR), which has experienced extensive magmatism. Since the Paleozoic, there are two stages of magmatism in Hua'aobaote orefield occurred in the Paleozoic and Mesozoic. The Mesozoic magmatism is of great significance for the Pb‐Zn‐Ag Polymetallic mineralization in Hua'aobaote orefield. In...
The Authorization Management in Grid Systems has various structures. This paper proposes an identity-based authorization mechanism which using IBE algorithm for key exchanging and PMI for policy decision. Our scheme could satisfy the demands of the process from access requests committed by users to the authorized access control. The security level of the scheme is lower than the systems based-certificates...
The authorization management in grid systems has various structures. This paper proposes a password-based authorization mechanism using generic three-party password-based key exchange (GPAKE). Our scheme could satisfy the demands of the process from access requests committed by users to the authorized access control. The security level of the scheme is lower than the systems based-certificates. Because...
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