john-users - attacking RC2 40-bit S/MIME encrypted emails

Date: Tue, 16 Sep 2014 17:04:19 +0000
From: augustin@...nmailbox.org
To: john-users@...ts.openwall.com
Subject: attacking RC2 40-bit S/MIME encrypted emails

Hi,

long time ago, Bruce Schneier published a tool for Windows 95 to attack 
S/MIME encrypted emails that use RC2 for encryption with 40bit long 
keys.

https://www.schneier.com/smime.html

code:
https://www.schneier.com/smime-download.html

I had a look at john formats but did not find anything related. Does 
john support that type of encryption or will it be supported in the 
future?

thanks!
augustin

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