Re: naive groebner basis preimage attack on md5

2009-06-21 Thread Georgi Guninski
on step reduced md5 to 16 steps (of 64 steps using all of the same input) this attack takes less than 20 minutes on a pc. this makes the system 4 times smaller while keeping *the structure* of the system. examples at: http://seclists.org/fulldisclosure/2009/Jun/0216.html if someone give me an acc

Re: S/MIME in Thunderbird

2009-06-21 Thread Michael Ströder
Ian G wrote: > On 19/6/09 15:36, Jean-Marc Desperrier wrote: >> Nelson B Bolyard wrote: >>> if you send an encrypted message to >>> someone from whom you have never received a signed S/MIME message, you >>> will >>> use weak encryption. > > Does this assume LDAP for acquiring the certificate witho

Re: S/MIME in Thunderbird

2009-06-21 Thread Ian G
On 19/6/09 15:36, Jean-Marc Desperrier wrote: Nelson B Bolyard wrote: if you send an encrypted message to someone from whom you have never received a signed S/MIME message, you will use weak encryption. Does this assume LDAP for acquiring the certificate without a signed S/MIME message? (So