Use of the IDEA Encryption Algorithm in CMS
S Teiwes, P. Hartmann, D. Kuenzi · 2001
This memo specifies how to incorporate International Data Encryption Algorithm (IDEA) into CMS or S/MIME as an additional strong algorithm for symmetric encryption.For organizations who make use of IDEA for data security purposes it is of high interest that IDEA is also available in S/MIME.The intention of this memo is to provide the OIDs and algorithms required that IDEA can be included in S/MIME for symmetric content and key encryption.