Verifying a certificate

[Bruce5051]

@kentborg

am loading root certificates into a trust store and then iterating backwards along the chain. Sounds like I want to do that with shorter versions of the chain first so I I will catch the newer trust anchor.

Here is a reference on Long (default) and Short (alternate) Certificate Chains Explained

@kentborg

is there a clean parallel approach in Python?

@kentborg, please wait for more knowledgeable Let's Encrypt community volunteers to assist.