How to protect a signature from being shown to a third party

被引：0

作者：

Klonowski, Marek ^{[1
]}

Kubiak, Przemyslaw ^{[1
]}

Kutylowski, Miroslaw ^{[1
]}

Lauks, Anna ^{[1
]}

机构：

[1] Wroclaw Tech Univ, Inst Math & Comp Sci, PL-50370 Wroclaw, Poland

来源：

TRUST, PRIVACY, AND SECURITY IN DIGITAL BUSINESS, PROCEEDINGS | 2006年 / 4083卷

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Many attempts to controlling who and under which circumstances can verify our signatures have been made so far. For this purpose one can use undeniable signatures, designated confirmer signatures or designated verifier signatures. We introduce a model of new kind of signatures, called dedicated digital signatures (or dds for short). The core idea is that a designated verifier can present a standard signature of the signer derived from dds to a third party, but at the price of revealing the privatekey of the designated verifier or at the price of revealing the designated verifier's signature of a particular message. Therefore the verifier will show the signature only in very special situations. We present a construction of a dds based on ElGamal signatures and its modifications that allow to obtain additional important features.

引用

页码：192 / 202

页数：11