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So now that we've got Alice and Bob covered, what happens when Alice wants to share a file with a group of people. And what if that group is dynamic? Is there s
by ragesh 15y ago
So now that we've got Alice and Bob covered, what happens when Alice wants to share a file with a group of people. And what if that group is dynamic? Is there something that addresses this scenario?
- weavejester 15y agoOne of the members of the group can generate a new key pair, and share it with all the other members (in the same way one would share a file with each individual). If Alice sends a file to the group's key pair, anyone in the group can read the file. Adding members to the group is trivial; just send them the group's key pair. Removing a member would be more difficult. Perhaps the most convenient way would be to add an additional layer of security on top (so members would need server access permissions, plus the private key). The only other option would be to create a new group and to re-encrypt all the existing files with a new key.