I need to share information with my team, like passwords and credit card numbers.
The needs are pretty minimal -- just an encrypted "spreadsheet". Keepass is potentially a solution but
- the user interface is horrible (all command-line would be fine)
- It doesn't allow individual user access and revocation
- it requires a master password that is shared by many
CPM seems to be what I'm looking for, it solves the above three problems, but it hasn't been maintained in a few years so I haven't looked into it too deeply yet. However maybe it doesn't matter that it's not maintained, because the underlying security is handled by GPG which of course is maintained.
What other solutions are out there?