Default to newest key, ignore expired keys

[devurandom]

For a certain email address, there are multiple keys in the web-of-trust: One is old and long since expired, the other is of a newer date and still valid. encrypt.to selects the old one.

I suggest to skip all expired keys and select the most current one as default.

[wiegelmann]

Thanks.

[devurandom]

Do you now also ignore expired (and revoked) keys?

[wiegelmann]

In the next sks key server release expiration times will be readable: https://bitbucket.org/skskeyserver/sks-keyserver/src/72772070cb7706ff6eb6af2c0e4223a605ec05e6/CHANGELOG?at=default