<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 4/10/2003 8:18:22 AM Central Standard Time, valetia@mac.com writes:<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Does this mean (each time when data needs to be sent) that you would<BR>
generate the keyFile at the sender's computer and then have the keyFile sent<BR>
over, together with the encrypted data, to the receiving computer?<BR>
<BR>
What happens if someone "captures" both pieces of information over the<BR>
connection, would it not be possible for them to decrypt the data?<BR>
</BLOCKQUOTE><BR>
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No, the keyFile is generated ahead of time and is loaded onto each computer via diskette or CD, etc. If you make a large keyFile at the start (say 100,000 random numbers) you will not need a new file for some time. If you fill a CD with a number of these keyFiles (for example, a different keyFile for each month), you could easily go a whole year before generating new keyFiles unless you were sending large messages every day. The keyFile should *not* be transmitted but, instead, should be sent by mail or something like that. <BR>
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The starting number at the beginning of the message tells the decoder where to begin in the keyFile. You can use a keyFile until all the numbers have been used once. After that, a different keyFile should be generated and loaded on both computers.<BR>
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Philip Chumbley</FONT></HTML>