A Key Escrow Scheme for Escrow Agency of Arbitrary Number

XIE Dong-qing; ZHANG Da-fan; LI Chao; LENG Jian

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A Key Escrow Scheme for Escrow Agency of Arbitrary Number

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- A Key Escrow Scheme for Escrow Agency of Arbitrary Number
- Acta Electronica Sinica Vol. 29, Issue 2, Pages: 172-174(2001)
- 作者机构：
  
  1. 湖南大学计算机科学系,长沙,410082
  2. 中国科学院软件研究所计算机科学开放实验室,北京,100080
  3. 国防科技大学理学院数学与系统工程系,长沙,410073
  4. 湖南大学计算机科学系长沙,410082
  5. 中国科学院软件研究所计算机科学开放实验室北京,100080
  6. 国防科技大学理学院数学与系统工程系长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918.4
- Published：2001
- 稿件说明：
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XIE Dong-qing, ZHANG Da-fan, LI Chao, et al. A Key Escrow Scheme for Escrow Agency of Arbitrary Number[J]. Acta Electronica Sinica, 2001, 29(2): 172-174.
DOI：

XIE Dong-qing, ZHANG Da-fan, LI Chao, et al. A Key Escrow Scheme for Escrow Agency of Arbitrary Number[J]. Acta Electronica Sinica, 2001, 29(2): 172-174. DOI：

摘要

已有的密钥托管方案都要求恢复密钥的托管方数量相等

本文提出一种新的密钥托管方案

在恢复会话密钥时

可以是任意指定的托管方数量

托管方成员增加、减少、更换时

无需更改已托管的密钥碎片

密钥分拆和密钥恢复运算量各不超过4

+1次RSA运算.

为托管代理总数.

Abstract

The known key escrow scheme requires equal number in key recover escrow side.This paper proposes a new key escrow scheme.In recovering session key

any assigned number of escrow side is allowable.When increasing

reducing and changing the member of escrow side

it is not necessary to modify the storing key part

and no more than 4

+1 (

is positive integer) RSA operations are needed respectively for key split or key recover.

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National Key Laboratory on ISN,Xidian University

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