MITM on 3TDES and why is the effective key lenght 112 bits

MITM on 3TDES and why is the effective key lenght 112 bits
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Subject Author Date
MITM on 3TDES and why is the effective key lenght 112 bits Saqib Ali 09-06-2006
Posted by Saqib Ali on September 6, 2006, 9:02 pm
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Can anyone explain how the MITM works on 3TDES (three distinct keys)?

I am typically interested in finding out why 3TDES has effective
key-length of 112-bit

In Peace,
Saqib Ali
http://www.full-disc-encryption.com


Posted by nemo_outis on September 6, 2006, 10:15 pm
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@e3g2000cwe.googlegroups.com:

> Can anyone explain how the MITM works on 3TDES (three distinct keys)?
>
> I am typically interested in finding out why 3TDES has effective
> key-length of 112-bit
>
> In Peace,
> Saqib Ali
> http://www.full-disc-encryption.com
>
>

http://en.wikipedia.org/wiki/Triple_DES

Regards,

Posted by Saqib Ali on September 7, 2006, 12:49 am
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> http://en.wikipedia.org/wiki/Triple_DES

This has NO explanation of how the MITM works or why the effective key
lenght is reduced to 112 bits.

In Peace,
Saqib Ali
http://www.full-disc-encryption.com


Posted by Ludovic Joly on September 7, 2006, 5:36 am
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I think you should post your question to sci.crypt...

Kind regards
Ludovic


Posted by Sebastian Gottschalk on September 7, 2006, 8:12 pm
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Saqib Ali wrote:

>> http://en.wikipedia.org/wiki/Triple_DES
>
> This has NO explanation of how the MITM works or why the effective key
> lenght is reduced to 112 bits.

It contains a link to the article about MITM.


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