[openssl-dev] [openssl.org #4429] Cannot decrypt RC4-encrypted CMS object

[Salz, Rich]

> Is there any reason why stream ciphers are not supported with CMS?

Go ask CMS folks? :)
 
> Along the same line, is there any reason why AE(AD) ciphers are not
> supported with “openssl enc”?

A known bug.  https://rt.openssl.org/Ticket/Display.html?id=4228 user guess / pass guest if needed.