[Techtalk] encrypting wavelan

Alvin Goats agoats at compuserve.com
Thu Oct 17 20:34:44 EST 2002


There is another way using a loop device. Buried in the kernel is a
place for adding DES encryption to loop.o 

There are other sources of encryption, but depending on where you are,
some of them may not be accessable due to export regulations. However,
everybody is expecting the encryption of the standard interface and not
an additional loop device. So....


copy file through loop0 using blowfish to wavelan device driver with
encryption on. You now have a double encrypted file transfer.

Details are available on the web. Check your local regulations and what
encryption methods are legal (AES is not allowed outside the US, there's
one not allowed outside Italy...)

For maximum security, use a one time pad with the encryption file being
a song ripped from a CD. The other end also has to have EXACTLY the same
CD and song to decrypt. Without this, the bit-wise XOR of random data
from a music CD plus your file is impossible to crack. 

Alvin



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