ID	原文	译文
3433	为了降低数据外包聚类运算过程中存在的隐私泄露风险，提出了一个基于同态加密的 DBSCAN 聚类隐私保护方案。	In order to reduce the risk of data privacy leakage in the process of outsourced clustering, a privacy protectionscheme of DBSCAN clustering based on homomorphic encryption was proposed.
3434	为了加密实际场景中的浮点型数据，给出了针对不同数据精度的 3 种数据预处理方式，并提出了一种基于数据特点且综合考虑数据精度和计算开销等方面的数据预处理方式的选择策略。	In order to encrypt the float data in theactual scene, three data preprocessing methods for different data accuracy were given, and a policy for choosing a properdata preprocessing method based on data characteristics, accuracy and computational cost was also proposed.
3435	由于同态加密不支持密文比较运算，设计了一个用户端与云服务器之间的协议实现密文比较功能。	For the ci-phertext comparison operation that was not supported by homomorphic encryption, a protocol between the client and thecloud server was designed to realize the function of ciphertext comparison.
3436	理论分析和实验结果表明，所提方案能够保证数据隐私安全，并且具有较高的聚类准确率和较低的时间开销。	Theoretical analysis and experimental results show that the proposed scheme can ensure the security of data privacy, and has a higher clustering accuracy rate and low-er time overhead.
3437	为了解决签名私钥易泄露和签名权利过度集中的问题，针对基于区块链技术的网络交易系统，提出了一种安全高效的两方协同 ECDSA 签名方案。	To solve the easy disclosure of signature private key and excessive concentration of signature rights, a secureand efficient two-party ECDSA signature scheme was proposed for the blockchain based network trading systems.
3438	通过预计算一次一密的 Beaver 三元组，进而利用基于 Beaver 三元组的安全两方乘法技术，有效避免使用计算繁重的同态加密和通信开销较大的不经意传输等操作，实现高效的两方协同 ECDSA 签名，保证 2 个签名参与方在不重构完整签名私钥的情况下输出合法的 ECDSA 签名。	Bypre-computing one-time pad Beaver's triple, and utilizing the Beaver's triple based secure two-party multiplication tech-nology, some computationally intensive homomorphic encryption operations and oblivious transfer operations with high communication overhead were effectively avoided, and thereby an efficient two-party ECDSA signing was realized,which could ensure that the two signing parties output valid ECDSA signature without reconstructing the complete pri-vate key.
3439	方案的安全性在通用可组合框架中的混合模型下被证明。	The proposed scheme was proved to be provably secure under the hybrid model of the universally composableframework.
3440	理论分析与实验结果表明，与现有的 2 种两方协同 ECDSA 签名方案相比，所提方案在协同签名运行效率和带宽要求方面均具有明显优势。	Theoretical analysis and simulation results demonstrate that the proposed scheme has significant advantagesin terms of signing efficiency and bandwidth requirements when compared with the existing two two-party ECDSA sig-nature schemes.
3441	针对车联网的多媒体业务快速增长，大量的数据交换为移动网络带来沉重负担的问题，构建了一种车联网中基于移动边缘计算的 V2X 协同缓存和资源分配框架。	Aiming at the problem that with the rapidly increasing of multimedia services in IoV, a large amount of datachange has bought a heavy burden on the mobile networks, a V2X collaborative caching and resource allocation frame-work in MEC-based IoV was constructed.
3442	提出了 V2X 协同缓存与资源分配机制，实现网络内计算、缓存和通信资源的有效分配；	A V2X cooperative caching and resource allocation mechanism was proposedto achieve the effective allocation of computing resources, caching resources, and communication resources in the net-work.