Looking for a Windows/Unix crypting solution ?

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

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)?

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.

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)?

ctobini wrote:
> 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

I suggest you use GnuPG. See http://www.gnupg.org/ .

MT

"Abut" <taylormc2305@yahoo.co.uk> writes:

> ctobini wrote:
> > 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
>
> I suggest you use GnuPG. See http://www.gnupg.org/ .

This is what we do. gpg -c specifically using a shared secret key.
There are standalone gpg dos binaries out there, though I personally
like it as part of cygwin on the windows side.

It doesn't hit your desire for a GUI solution though, by itself, but
you can investigate these:
http://www.gnupg.org/(en)/related_so...tends.html#gui


--
Todd H.
http://www.toddh.net/

"ctobini" <ctemp2@free.fr> writes:

>Hello and thanks for your answer,

>The client have to download files from a SFTP account, I would like to

SFTP already encrypts the data in transit. What more do you want?

>encrypt the data (files as PowerPoint, Word documents...) and the
>client to decrypt with the same algorithm than I used.

What attack are you trying to protect against?



>> > 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)?

ctobini <ctemp2@free.fr> wrote:
> 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).

Try truecrypt.org.

Yours,
VB.
--
"Life was simple before World War II. After that, we had systems."
Grace Hopper

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.
>
> 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.

Keme <KEMEsixtwonullsix@start.no> writes:

>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.