On Key Distribution Based on Grouping User with Probability

QU Jin; GE Jian-hua; JIANG Ming

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On Key Distribution Based on Grouping User with Probability

更新时间：2025-07-16

- On Key Distribution Based on Grouping User with Probability
- Acta Electronica Sinica Vol. 31, Issue 8, Pages: 1266-1268(2003)
- 作者机构：
  
  1. 西安电子科技大学计算机网络与信息安全教育部重点实验室,陕西,西安,710071
  2. 上海交通大学电子信息学院,上海,200030
  3. 西安电子科技大学计算机网络与信息安全教育部重点实验室陕西西安,710071
  4. 上海交通大学电子信息学院上海,200030
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN949
- Published：2003
- 稿件说明：
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QU Jin, GE Jian-hua, JIANG Ming. On Key Distribution Based on Grouping User with Probability[J]. Acta Electronica Sinica, 2003, 31(8): 1266-1268.
DOI：

QU Jin, GE Jian-hua, JIANG Ming. On Key Distribution Based on Grouping User with Probability[J]. Acta Electronica Sinica, 2003, 31(8): 1266-1268. DOI：

摘要

条件接收系统是付费电视系统的重要组成部分

而其中密钥分发的效率和安全性又是影响条件接收系统性能的关键因素.本文基于用户概率模型提出了用户霍夫曼树分组模型及相应密钥分发方法

该方法具有最优的分发效率.

Abstract

Conditional access system is the crucial part of Pay-TV System

and the efficiency and security of key distribution are the main factors which influence the performance of conditional access system.In this paper we proposed a new key distribution scheme on the basis of grouping users with their probability

and prove that this scheme has optimal distribution efficiency.

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