As of maverick at least:
Package: cryptsetup ... Task: ubuntu-live, kubuntu-live, kubuntu-mobile-live, kubuntu-netbook-live, edubuntu-live, xubuntu-live, mythbuntu-live, netbook-live
As of maverick at least:
Package: cryptsetup mobile- live, kubuntu- netbook- live, edubuntu-live, xubuntu-live, mythbuntu-live, netbook-live
...
Task: ubuntu-live, kubuntu-live, kubuntu-