encrypted login/data on webpages.

[Dave Bird]

 Dear people,

 Can anyone give me brief advice and pointers where to look for detail
 on the following area.

 First, is it possible on a web-server to set up a private encrypted
 web-page.  What I mean is that it would require having one (or one
 of several) signing keys to be allowed to log-in at all.  Then it
 maybe has data locally encrypted in its key, and sends it down the
 channel in some session key to you, to read.  And similarly to
 write/FTP into the place for those with write-permission.
 Now, second, if such things exist with crappy weak encryption,
 can one get Netscape/MSIE plug-ins to upgrade to strong encryption.

 This has obvious application for almost any group that want to share
 work-space maybe in a third country, but are subject to interception
 or disruption if every hostile group can log-in and read it too.

 Regards,

 DAVE.

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