An RSA-based (t, n) Threshold Proxy Signature Scheme with Freewill Identities

ASIAIR > College of Computer Science > Department of Computer Science and Information Engineering > Journal Artical > Item 310904400/6471

Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/6471

Title:	An RSA-based (t, n) Threshold Proxy Signature Scheme with Freewill Identities
Authors:	Chang, Y. F.;Chang, C. C.
Keywords:	cryptography;information security;computer security;proxy signature;RSA cryptosystems;(t, n) threshold;freewill identities;private key;identity choice
Date:	2007-01
Issue Date:	2009-12-17 06:58:09 (UTC+0)
Publisher:	Asia University
Abstract:	Hwang, Lu and Lin (2003) proposed a (t, n) threshold proxy signature scheme, based on the RSA cryptosystem. Later, Wang et al. (2004a) indicated that this scheme was insecure because the original signer's private key could be derived. Moreover, the delegates' identities had to be chosen carefully. In this paper, we propose an improved RSA-based (t, n) threshold proxy signature scheme, which withstands this security flaw and also offers the convenience of choosing identities at will.
Relation:	International Journal of Information and Computer Security 1(1/2):201-209
Appears in Collections:	[Department of Computer Science and Information Engineering] Journal Artical

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