Re: Validation of transfer of data files

From: Sooner Al (SoonerAl_at_somewhere.net.invalid)
Date: 09/02/04 

Date: Thu, 2 Sep 2004 06:46:35 -0500

How about using an MD5 signature so the recipient can verify the integrity of the received file...

http://search.msn.com/results.asp?FORM=sCPN&RS=CHECKED&un=doc&v=1&q=md5%20windows 

-- 
    Al Jarvi (MS-MVP Windows Networking)
Please post *ALL* questions and replies to the news group for the mutual benefit of all of us...
The MS-MVP Program - http://mvp.support.microsoft.com
This posting is provided "AS IS" with no warranties, and confers no rights...
"Geoff" <anonymous@discussions.microsoft.com> wrote in message 
news:4c9b01c490de$7300fac0$a301280a@phx.gbl...
> Security isn't the issue. I need to validate that the
> files haven't been corrupted in any way on their way
> through. Website access is just a different transfer
> method.  Is there anything you can suggest?
>
> Thanks, Geoff.
>
>>-----Original Message-----
>>OT, but why can't you just upload the files to a website
> and let the users
>>download them directly? You can secure access to the
> website by requiring
>>credentials, and making it an SSL site....
>>
>>Geoff wrote:
>>> Not sure if this is the right place to ask. I need to
>>> periodically transfer data files (mix of Excel and Word)
>>> to my various clients, by e-mail (I normally zip them
>>> up).  I am now told that I not only have to send them,
> but
>>> validate that what the client has received is the same
> as
>>> when it was sent (i.e. that no corruption has occurred
> on
>>> it's way through the ether). I have been looking at
> things
>>> like checksum programs, but they seem to depend on the
>>> client having the same software at their end, which is
> not
>>> a viable option (too many clients, too many different
> set
>>> ups). Is there any method that anyone can suggest that
>>> would help me achieve this validation of data transfer,
>>> without requiring the recipient to have a particular
> piece
>>> of software?
>>>
>>> Many thanks.
>>

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