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While Shamirpsilas identity-based public key cryptosystem does not need the certificates, the key escrow of userpsilas private keys is inherent in such scheme. In 2003,the concept of certificateless signature scheme was introduced. In this new paradigm, the necessity of certificates has been successfully removed and the key escrow problem does not exist. Based on the ideas of certificateless signatures...
A strong designated-verifier proxy signature scheme was proposed to protect the original signerpsilas interests. In this scheme, the verifier was designated by the original signer. The valid proxy signature generated by the proxy signer on behalf of the original signer can only be accepted by the designated verifier and no body else can be convinced about the proxy signaturespsila validity or invalidity...
The systematic failure theory of the power electronic devices has always been absent, and the device characteristic of internal dynamics is often been neglected. For the better explanation of nonlinear phenomena in power electronic devices, this paper researched the typical device of thyristor in detail. In the first instance, whether frequency change or gate current change, the simulation and experimental...
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