Presentation	1995/12/14 Weakness in Message recovery signature schemes based on discrete logarithm problems 2 Atsuko Miyaji,
PDF Download Page	PDF download Page Link
Abstract(in Japanese)	(See Japanese page)
Abstract(in English)	Nyberg and Rueppel recently proposed a new ElGamal-type digital signature scheme with message recovery feature and its six variants ([7,8]). They also pointed out two forgeries against some of their signatures. But they did not investigate explicitly how to apply these forgeries to all variants including elliptic curves. The author presented new two forgeries and investigated deeply how to apply the two forgeries and already presented one forgery on all variants. In this paper, we present the further two forgeries and investigate explicitly how to apply the two forgeries and the other presented forgery on all variants.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	discrete logarithm problems / message-recovery signature / attack
Paper #	ISEC95-35
Date of Issue

Conference Information
Committee	ISEC
Conference Date	1995/12/14(1days)
Place (in Japanese)	(See Japanese page)
Place (in English)
Topics (in Japanese)	(See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To	Information Security (ISEC)
Language	ENG
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Weakness in Message recovery signature schemes based on discrete logarithm problems 2
Sub Title (in English)
Keyword(1)	discrete logarithm problems
Keyword(2)	message-recovery signature
Keyword(3)	attack
1st Author's Name	Atsuko Miyaji
1st Author's Affiliation	Multimedia Development Center, Matsushita Electric Industrial Co., LTD.()
Date	1995/12/14
Paper #	ISEC95-35
Volume (vol)	vol.95
Number (no)	422
Page	pp.pp.-
#Pages	8
Date of Issue