Learn More
A new ID-based anonymous proxy signature scheme from bilinear pairings was proposed in this paper. Anonymous proxy signature is suitable for the situation that the proxy signer's identity needs to be kept secret. The verifier needs to reveal the real identity of the proxy signer with the help of the original signer. The signature is based on Gap(More)
Heavy metals (Cu, Pb, Cr, Cd and As) contents in surface sediments from western Laizhou Bay were analysed to evaluate the spatial distribution pattern and their contamination level. As was mainly concentrated in the coastal area near the estuaries and the other metals were mainly concentrated in the central part of the study area. The heavy metals were(More)
  • 1