Wrap SSL Around Existing Socket... Externally

[=?Utf-8?B?Um9iS2lubmV5MQ==?=]

Hello,

My boss asked me if it is possible to wrap SSL around an existing socket
which is running with a C++ program (I know it is, I have done it before). I
am wondering if it is possible to do this in a C# application so that when
the C# program is running in the background, it is able to intercept the
socket communications from the C++ program, encrypt them, and pass it on
through the C# SSL program I make to a receiving C# program to decode and
pass it back to the C++ client.

Is this possible? I am not even sure what direction to take or what
keywords to lookup for help on this subject. Please let me know if you need
clarification.

Thank you all!

Rob

[=?Utf-8?B?UGV0ZXIgUml0Y2hpZSBbQyMgTVZQXQ==?=]

Do you mean encrypt a non-encrypted socket? That would require some sort of
proxy or encrypting NAT on each end (assuming the server excpects an
unencrypted socket).

--
Browse http://connect.microsoft.com/VisualStudio/feedback/ and vote.
http://www.peterRitchie.com/blog/
Microsoft MVP, Visual Developer - Visual C#
"RobKinney1" wrote:

Hello,

My boss asked me if it is possible to wrap SSL around an existing socket
which is running with a C++ program (I know it is, I have done it before). I
am wondering if it is possible to do this in a C# application so that when
the C# program is running in the background, it is able to intercept the
socket communications from the C++ program, encrypt them, and pass it on
through the C# SSL program I make to a receiving C# program to decode and
pass it back to the C++ client.

Is this possible? I am not even sure what direction to take or what
keywords to lookup for help on this subject. Please let me know if you need
clarification.

Thank you all!

Rob

[=?Utf-8?B?Um9iS2lubmV5MQ==?=]

"Peter Ritchie [C# MVP]" wrote:
Hello Peter,

Thank you for replying!

Do you mean encrypt a non-encrypted socket? That would require some sort of
proxy or encrypting NAT on each end (assuming the server excpects an
unencrypted socket).

Yes, I believe this is correct. Is it possible for a C# program to
intercept these socket communications, then encrypt them before they leave
the local computer? (And then of course capture the communication on the
other end with a C# and unencrypt the data).

Rob

[=?Utf-8?B?UGV0ZXIgUml0Y2hpZSBbQyMgTVZQXQ==?=]

You'd have to write some sort of NDIS hook (requires WinSock 2).

The only thing I know of is RawEther .NET [1]. It would have to be an
external binary (i.e. the application itself can't hook it's own traffic) as
far as I know...

http://www.rawether.net/DotNet/default.htm
--
Browse http://connect.microsoft.com/VisualStudio/feedback/ and vote.
http://www.peterRitchie.com/blog/
Microsoft MVP, Visual Developer - Visual C#
"RobKinney1" wrote:

"Peter Ritchie [C# MVP]" wrote:
Hello Peter,

Thank you for replying!

Do you mean encrypt a non-encrypted socket? That would require some sort of
proxy or encrypting NAT on each end (assuming the server excpects an
unencrypted socket).

Yes, I believe this is correct. Is it possible for a C# program to
intercept these socket communications, then encrypt them before they leave
the local computer? (And then of course capture the communication on the
other end with a C# and unencrypt the data).

Rob

[=?Utf-8?B?Um9iS2lubmV5MQ==?=]

"Peter Ritchie [C# MVP]" wrote:

You'd have to write some sort of NDIS hook (requires WinSock 2).

The only thing I know of is RawEther .NET [1]. It would have to be an
external binary (i.e. the application itself can't hook it's own traffic) as
far as I know...

http://www.rawether.net/DotNet/default.htm

Thank you very much! I will look into this this weekend. Looks like it is
time to roll up the sleeves...

Thanks again for pointing me in the right direction!

Rob