Ferveo: Threshold Decryption for Mempool Privacy in BFT networks
Ferveo: Threshold Decryption for Mempool Privacy in BFT networks
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Ferveo：BFT 网络中 Mempool 隐私的阈值解密
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
D. Ojha
中科院分区：
文献类型：
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作者：
Joseph Bebel;D. Ojha
.分布式网络具有Mempool Privacy，如果交易保持加密，直到它们的包含被最终确定，并且包含保证解密和执行。Mempool Privacy是非常可取的，以防止交易审查和广泛的MEV攻击。我们介绍了Ferveo，这是一种在BFT共识区块链上实现Mempool隐私的快速协议，例如基于Tendermint的协议。区块链验证器使用新的分布式密钥生成和阈值公钥加密方案来解密加密到阈值公钥的交易，将安全假设与Tendermint紧密结合，并提供每个区块高达数千笔交易的具体可扩展性。区块链的安全性和效率模型与学术文献中通常研究的模型非常不同，需要一些新的概念来实现抽象方案和实现。
. A distributed network has Mempool Privacy if transactions remain encrypted until their inclusion is finalized, and inclusion guarantees decryption and execution. Mempool Privacy is highly desirable to prevent transaction censorship and a broad class of MEV attacks. We present Ferveo, a fast protocol for Mempool Privacy on BFT consensus blockchains, such as those based on Tendermint. Blockchain validators use new Distributed Key Generation and Threshold Public Key Encryption schemes to decrypt transactions encrypted to a threshold public key, closely aligning security assumptions with Tendermint and providing concrete scalability up to thousands of transactions per block. The blockchain security and efficiency models are quite different than typically studied in the academic literature, requiring several new ideas for both the abstract scheme and implementation.