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Posted by Unruh on December 10, 2006, 9:08 pm
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>ctobini skrev:
>> Hello and thanks for your answer,
>>
>> The client have to download files from a SFTP account, I would like to
>> encrypt the data (files as PowerPoint, Word documents...) and the
>> client to decrypt with the same algorithm than I used.
sftp already encrypts the files in transit. What is the attack model you
are trying to defend against? Who is it you are trying to prevent reading
the files?
You have answered none of the questions. If you do not, you are on your
own. You will do something incredibly stupid and make your system much
weaker than it was before you set off on this wild goose chase, but we will
no longer care since you do not care to tell us what you need.
>>
>> C. Tobini
>>
>> Keme a écrit :
>>
>>> ctobini skrev:
>>>> Hello,
>>>>
>>>> I would like to crypt data for an exchange between Linux and Windows OS
>>>> in a professional way, the Windows clients must so have a GUI and must
>>>> be be useful (ccrypt is cross-platform and free but is only a command
>>>> line utility).
>>>>
>>>> Would you know which utility exists on Linux and Windows OS (free
>>>> and/or open source if possible) ?
>>>>
>>>> Thanks,
>>>>
>>>> C. Tobini
>>>>
>>> What kind of data/traffic is exchanged? (Traditional file server setup,
>>> streaming, web, messaging... ; LAN, WLAN, shared/local storage media.)
>>>
>>> Where should the data be encrypted? (Only on the wire, or do you want
>>> encrypted files?)
>>>
>>> Do you need transparency (so the users don't need to be aware of the
>>> utility)?
>>
>MS Office only?
>For a gui sftp client I've used "bitvise tunnelier" (combination
>ssh/sftp client) and it has the features I need. MS office has builtin
>support for file encryption, and with the latest versions the encryption
> should be strong enough for most uses. See the "Tools - Options" menu
>selection, "Security" tab.
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