信息与科技翻译

本文阐述了当代社会信息的发展和重要性，以及科技翻译工作在其间的作用，并佐以实例。．     

Lattice-based group signature with verifier-local revocation

Among several post quantum primitives proposed in the past few decades, lattice-based cryptography is considered as the most promising one, due to its underlying rich combinatorial structure, and the worst-case to average-case reductions. The first lattice-based group signature scheme with verifier-local revocation(VLR) is treated as the first quantum-resistant scheme supported member revocation, and was put forward by Langlois et al. This VLR group signature(VLR-GS) has group public key size of O(nm log N log q), and a signature size of O(tm log N log q log β). Nguyen et al. constructed a simple efficient group signature from lattice, with significant advantages in bit-size of both the group public key and the signature. Based on their work, we present a VLR-GS scheme with group public key size of O(nm log q) and signature size of O(tm log q). Our group signature has notable advantages: support of membership revocation, and short in both the public key size and the signature size.     

汽车维修行业发展特征、规律及政策引导方向

随着我国改革开放和加入世贸，国内汽车工业蓬勃发展，进口汽车大量涌入，使国内汽车市场总量大幅上升，私人汽车拥有量成倍增长，使汽车维修市场的整体容量也节节攀升。在市场扩容的同时，随着国家相关政策的放开，各类经营主体纷纷介入，包括国外维修企业，使汽车维修业户的成分