The proposed hardware architecture is also successfully implemented in an ASIC design using ROHM 180 nm CMOS technology.Ĭryptocurrencies often tend to maintain a publically accessible ledger of all transactions. Its hash rate, hardware and energy efficiencies are much higher than those of the other works implemented on FPGA and GPU hardware platforms. The hash rate of the proposed system reaches 229.1 kHash/s.
#Dogecoin core stuck connecting to peers full#
The full hardware system is designed and implemented on Xilinx Virtex-7 and Aveo U280 FPGA platforms. In addition, the proposed sharing resources and pipelined architectures make the calculation speed increase significantly while the hardware cost is reduced by half compared to the parallel non-pipelined architecture. This architecture minimizes the number of main computational blocks to reduce the power consumption of the system. In this paper, a high-speed and low-power hardware architecture of the Scrypt function is proposed to generate blocks for the Scrypt-based blockchain network. Although this cryptographic hash function provides very high security, the processing speed and power consumption to generate a hashed block for the blockchain network are low-performance. It has also been employed as a proof-of-work algorithm in blockchain implementations.
The password-based key derivation function Scrypt has been employed for many services and applications due to its protection ability. The paper also sheds light on overlooked potential performance metrics, and it proposes some novel solutions to some of the identified problems.
The benefits, limitations, and tradeoffs, as well as the subsequent trend in current consensus development, and its limitations as a general paradigm, are highlighted. The main body of this paper consolidates knowledge of blockchains, focusing on the seminal consensus protocols in large-scale market capitalization platforms, and how consensus is achieved for large-scale, decentralized, blockchain architectures. Moreover, blockchain performance metrics are not clearly defined, as some metrics, such as delay and throughput, which are key factors for the efficiency of standard networks, are purposely constrained by most mainstream blockchain platforms. The new solutions promise to overcome the known drawbacks of blockchain, but they may also bring new vulnerabilities. Some of them have been implemented by official blockchain platforms, whereas others, for the time being, remain as proposals. The first consensus protocol emerged with Bitcoin. This is because parties that distrust each other can make secure transactions without the oversight of a central authority. Consensus protocols stand behind the success of blockchain technology.
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