[Ach] Proposal to Remove legacy TLS Ciphersuits Offered by Firefox

L. Aaron Kaplan kaplan at cert.at
Tue Jan 7 17:26:33 CET 2014


On Jan 5, 2014, at 4:27 PM, Kurt Roeckx <kurt at roeckx.be> wrote:

> On Fri, Jan 03, 2014 at 12:19:10AM +0100, Aaron Zauner wrote:
>> 
>>> 3DES isn't broken.
>> Triple DES provides about 112bit security (We've a section on the topic in the Paper in the Keylenghts section). All ciphers that we
>> recomend are at least at 128bit security.
> 
> The document doesn't seem to say that it's trying to reach a 128
> bit security level over the whole chain.  It seems to be happy
> with 2048 bit RSA keys.  They also provide 112 bit security.
> 
True, that's inconsistent.
I'll put it to the TODO list.

> If you really want to go for 128 bit, you need to have the RSA
> keys of at least something in the order of 3072 bit.  If 2048
> is fine, 3DES is fine.
> 
> 
> Kurt
> 
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// L. Aaron Kaplan <kaplan at cert.at> - T: +43 1 5056416 78
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