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This paper proposes a design and implementation scheme of a NE2000 compatible Ethernet interface for embedded system based on ARM7 and RTL-8019 NIC (network interface controller) hardware platform. The design aims at the characteristics that the embedded system only has limited resources and reduced any unnecessary operation process. The logic structure, operation principle and DMA controller data...
Traditional digital signatures usually are computationally expensive and offer no anonymity to signers. It is not very applicable to mobile commerce, where lots of resource-constrained portable devices are involved. In this paper, we first propose a novel hash chain, called multipath hash chain. Then, a new signature protocol, that combines multipath hash chain with server-supported signature technique,...
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