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Date: Tue, 20 Dec 2011 19:46:20 +0400
From: Solar Designer <>
Subject: Re: Bit slice implementation of DES based hashes

On Tue, Dec 20, 2011 at 08:17:24PM +0530, piyush mittal wrote:
> >
> > It does not have any mode.  It is a single DES encryption.
> Even proof of ECB i got from netlm format.So how you are saying it does not
> have any mode???

I was referring to DES_bs_crypt_LM().  It encrypts just one DES block.
While we can say that it's a special case of ECB mode, we can also say
that it's not a mode at all, but just the block cipher being directly
applied to one block of plaintext.

> However why it looks in single DES encryption mode is because of the way of
> calling S Boxes.

I don't understand what you mean here.


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