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91.
阐述了椭圆曲线密码学的数学基础以及在此基础上的加密、解密算法和数字签名,并对椭圆曲线密码在无线网络中的应用进行了探讨,指出了椭圆曲线密码具有密钥位数短,软、硬件处理节省资源优点。 相似文献
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Introduction Digitalsignatureistheelectronicversionof handwrittensignaturefordigitaldocuments.A digitalsignatureschemeallowsasignertotrans-formanarbitrarymessageintoasignedmessage,suchthatanyonecancheckthevalidityofthe signedmessageusingthesigner'spublickey,but onlythesignerisabletoproducesignedmessages.RSAdigitalsignature[1]isaverypopulardigi-talsignaturescheme,whosesecurityisbasedon theRSAassumption:“foragiveny∈Z*n,itis hardtocomputethemodulare-throotxofysuch thatxe=ymodn”.However,howt… 相似文献
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The short secret key characteristic of elliptic curve cryptosystem (ECC) are integrated with the ( t, n ) threshold method to create a practical threshold group signature scheme characterized by simultaneous signing. The scheme not only meets the requirements of anonymity and traceability of group signature but also can withstand Tseng and Wang's conspiracy attack. It allows the group manager to add new members and delete old members according to actual application, while the system parameters have a little change. Cryptanalysis result shows that the scheme is efficient and secure. 相似文献