Verify certificate chains starting from the root CA certificate and
moving towards the leaf/user certificate.
Also update TKM-RPC and TKM in testing scripts to version supporting the
reworked CC handling.
If we check out and build a certain revision of a dependency in a branch and
switch to another that requires a different revision and then switch back,
the previous approach installed the wrong revision as it would incorrectly
assume the required revision was already built and ready to install.
Adds XFRM state/policy flush when terminating which caused tests to fail
due to the check added with 9086f060d3 ("testing: Let test scenarios
fail if IPsec SAs or policies are not removed").
The tkm scenarios recently failed due to a segmentation fault on my host
because I had an old build of the tkm library already built in the build
directory. Because the stamp file was not versioned the new release was
never checked out or built and charon-tkm was linked against the old
version causing a segmentation fault during key derivation.
Tobias Brunner