> On Aug 13, 2017, at 11:39 AM, Sudarshan Raghavan
> <sudarshan.t.ragha...@gmail.com> wrote:
>
> 3. openssl verify -CAfile <root ca> <chain containing leaf, intermediate ca
> 2, intermediate ca 1 and root ca in that order>. This fails with this error
>
> "error 20 at 0 depth lookup: unable to get local issuer certificate
> error leafchain.pem: verification failed"
>
> I understand the reason for this is, the issuer of leaf certificate
> (intermediate ca 2) is not part of the trusted chain.
Actually, that's not the reason. The positional [certificates]
arguments to verify(1) are not "chains". Only the first (leaf)
certificate of each of the argument files is processed.
To import additional chain elements use the [-untrusted file]
argument to provide additional untrusted certificates with
which to build the chain.
--
Viktor.
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