if the agent, who has the right to appoint a proxy, exercises his right and appoints another person for pursuing the subject of agency, the appointed person is not the agent of the appointer; rather, he is regarded as the indirect agent of the client. therefore, if the object of agency is conclusion of a transaction contract and the indirect proxy concludes it, that [contract] belongs to the cl...

In proxy re-signature (PRS), a semi-trusted proxy, with some additional information (a.k.a., re-signature key), can transform Alice’s (delegatee) signature into Bob’s (delegator) signature on the same message, but cannot produce an arbitrary signature on behalf of either the delegatee or the delegator. In this paper, we investigate the security model of proxy re-signature, and find that the pre...

— The sale and lease real estate markets have cyclical developments which are often dissimilar in the short term and then take coincident trends in longer horizons. The imbalance in the relationship between prices and income is normally used by economists to determine any "housing bubbles". However, the structural limitations require caution in the use of the ratio between prices and rents as a...

In order to protect the proxy signers’ privacy, many anonymous proxy signature schemes which are also called proxy ring signatures, have been proposed. Although the provable security in the random oracle model has received a lot of criticism, there is no provable secure anonymous proxy signature scheme without random oracles. In this paper, we propose the first provable secure anonymous proxy s...

We have coupled a climate model (ECBilt-CLIO-VECODE) and a hydrological model (STREAM) offline to simulate the palaeodischarge of 19 rivers (Amazon, Congo, Danube, Ganges, Krishna, Lena, Mackenzie, Mekong, Meuse, Mississippi, Murray-Darling, Nile, Oder, Rhine, Sacramento-San Joaquin, Syr Darya, Volga, Volta, Zambezi) for three time-slices: Early Holocene (9000-8650 BP), Mid Holocene (6200-5850 ...

The early Eocene “equable climate problem”, i.e. warm extratropical annual mean and above-freezing winter temperatures evidenced by proxy records, has remained as one of the great unsolved problems in paleoclimate. Recent progress in modeling and in paleoclimate proxy development provides an opportunity to revisit this problem to ascertain if the current generation of models can reproduce the p...

In a designated verifier proxy signature scheme, there are three participants, namely, the original signer, the proxy signer, and the designated verifier. The original signer delegates his or her signing right to the proxy signer, then the proxy signer can generate valid signature on behalf of the original signer. But only the designated verifier can verify the proxy signature. Several designat...

A long standing problem in paleoceanography concerns the reconstruction of water temperature from δ18O carbonate. It is problematic in the case of freshwater influenced environments because the δ18O isotopic composition of the ambient water (related to salinity) needs to be known. In this paper we argue for the use of a nonlinear multi-proxy method called Weight Determination by Manifold Regula...

Proxy servers have been widely used by institutions to serve their clients behind firewalls. Recently many schemes have been proposed to organize the proxy servers into a cooperative proxy cache system. However most of existing proxy cache schemes require manual configuration of the cooperative proxies based on the network architecture. In this paper, we propose a novel P2P proxy caching scheme...