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  • From: "Brian Bruns" <camber AT ais.org>
  • To: freetds
  • Subject: Re: TDS 7.0 Login packet
  • Date: Thu, 19 Aug 1999 12:48:42


On 08/19/99, "Stephan February <essef AT mweb.co.za>" wrote:
> Hi there
>
> Here are some initial specs on the TDS 7.0 login packet as done by MS
> SQL Server 7.0. The most interesting thing for me would have to be the
> encoding of the password. It would seem like MS has decided to confound
> would-be crackers by using a combination of Unicode and a 'scrambled'
> ascii table to encode the login password.
> The password is therefore encoded as a two-byte Unicode character, with
> the first character corresponding to a lookup table translation as
> specified below ( all numbers are in decimal):
>
[much useful analysis clipped]

Looks good Stephen! I'll get around to coding up a login packet function
for 7.0 this week sometime. Then we need to get a capture of the
acknowledgement stream to make sure we're doing things right.

There must be a function of some sort to go from clear to encrypted text
that just isn't all that apparent. *shrug* maybe someone with an crypto
background can look at it.

> Rgrds
> Stephan

Thanks,

Brian




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