1995-11-30 - Re: Microsoft weak encryption
Header Data
From: Andy Brown <a.brown@nexor.co.uk>
To: cypherpunks@toad.com
Message Hash: b675dcce032ed68eb7de270e2b13078c6528ce201e354a8cb4ff654931060d09
Message ID: <30BC95AB.211E@nexor.co.uk>
Reply To: <199511291447.GAA19250@mail.eskimo.com>
UTC Datetime: 1995-11-30 11:55:02 UTC
Raw Date: Thu, 30 Nov 1995 19:55:02 +0800
Raw message
From: Andy Brown <a.brown@nexor.co.uk>
Date: Thu, 30 Nov 1995 19:55:02 +0800
To: cypherpunks@toad.com
Subject: Re: Microsoft weak encryption
In-Reply-To: <199511291447.GAA19250@mail.eskimo.com>
Message-ID: <30BC95AB.211E@nexor.co.uk>
MIME-Version: 1.0
Content-Type: text/plain
Joel McNamara wrote:
> Peter Gutmann has an interesting article in sci.crypt, demonstrating how
> weak Microsoft's encryption is with basic access control in Windows for
> Workgroups (I'm assuming Win95 uses the same algorithm). Essentially, he
> shows how a 32-bit key is created to be passed to RC4 for encrypting .PWL
> files. I think a t-shirt is definitely in order for this.
Further information on the method used by Windows NT (a challenge-response
mechanism) can be found on the MSDN CD, or on the MS ftp site:
PSS ID Number: Q102716. I'll mail the article to anyone that wants to see
it (~11k).
- Andy
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- 1995-11-29 (Wed, 29 Nov 1995 22:57:16 +0800) - Microsoft weak encryption - Joel McNamara <joelm@eskimo.com>
- 1995-11-29 (Thu, 30 Nov 1995 00:17:48 +0800) - Re: Microsoft weak encryption - Adam Shostack <adam@lighthouse.homeport.org>
- 1995-11-29 (Thu, 30 Nov 1995 03:47:42 +0800) - Re: Microsoft weak encryption - Frank Andrew Stevenson <frank@funcom.no>
- 1995-11-30 (Thu, 30 Nov 1995 19:55:02 +0800) - Re: Microsoft weak encryption - Andy Brown <a.brown@nexor.co.uk>