Simple Proof That a Committed Number Is in a Specific Interval

WU Qian-hong; ZHANG Jian-hong; WANG Yu-min

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Simple Proof That a Committed Number Is in a Specific Interval

更新时间：2025-07-16

- Simple Proof That a Committed Number Is in a Specific Interval
- Acta Electronica Sinica Vol. 32, Issue 7, Pages: 1071-1073(2004)
- 作者机构：
  
  西安电子科技大学ISN国家重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.22
- Published：2004
- 稿件说明：
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WU Qian-hong, ZHANG Jian-hong, WANG Yu-min. Simple Proof That a Committed Number Is in a Specific Interval[J]. Acta Electronica Sinica, 2004, 32(7): 1071-1073.
DOI：

WU Qian-hong, ZHANG Jian-hong, WANG Yu-min. Simple Proof That a Committed Number Is in a Specific Interval[J]. Acta Electronica Sinica, 2004, 32(7): 1071-1073. DOI：

摘要

顾客想向销售商证明其银行帐户上的钱足以购买某种商品

但不愿意泄露她帐户上的钱

因此需要一个工具证明一个承诺数在特定的区间内.目前多数这样的协议要么不能实现完整的证明

要么效率较低.本文给出了一个新的协议

协议简单、易于理解.它能够实现完整的证明

其效率比已知的协议更高.该协议可以用于电子现金、群签名、可证实加密等安全协议设计.

Abstract

A buyer wishes to show she has enough money in her account without revealing her money to buy some commodities.Therefore

a tool is needed for proving that a committed number is in a specific interval.Up to now

most of such tools were either inefficient or inexact.In this paper

we present a new simple protocol

which is exact and more efficient than the previous ones.The protocol is suited to be used in electronic cash

group signatures

publicly verifiable secret encryption

etc.

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Related Author

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GAI Ke-ke

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Related Institution

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