CLA: trivial
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16470)
and depending on numerous options.
The most important of them are detailed in the following sections.
-In a nutshell, a valid chain of certifciates needs to be built up and verified
+In a nutshell, a valid chain of certificates needs to be built up and verified
starting from the I<target certificate> that is to be verified
and ending in a certificate that due to some policy is trusted.
Verification is done relative to the given I<purpose>, which is the intended use