Announcing S/MIME Working Group Last Call.
Title : Methods for Avoiding the "Small-Subgroup" Attacks on
: the Diffie-Hellman Key Agreement Method for S/MIME
Author : R. Zuccherato
Filename : draft-ietf-smime-small-subgroup-02.txt
Date : November 1999
In some circumstances the use of the Diffie-Hellman key agreement scheme
in a prime order subgroup of a large prime p is vulnerable to certain
attacks known as "small-subgroup" attacks. Methods exist, however, to
prevent these attacks. This document will describe the situations
relevant to implementations of S/MIME version 3 in which protection is
required and the methods that can be used to prevent these attacks.
This document will become an Informational RFC.
Working Group Last Call will close on 30 November.
S/MIME WG Chair,
Russ