On 01/10/2019 12:21, Jeremy Harris wrote: > I'm using the indexfile variant. It seems that the -CA argument > needs to be the signer of the cert, not the CA for the chain; and > you cannot give -CA multiple times. So you don't get good OCSP status > for all elements in the chain: > $ openssl ocsp -sha256 -no_nonce -issuer $CADIR/Signer.pem -cert > $leafcert -issuer $CADIR/CA.pem -cert $CADIR/Signer.pem -cert > $CADIR/CA.pem -reqout $REQ -req_text Further experimentation finds that the "-CA" argument can be a PEM with multiple issuers, and this gets me a resp with all of the Cert Status values "good" rather than some "unknown". [ The "openssl ocsp" manpage could possibly use more info on the situation ] However, in trying to use that, I'm now less certain it was what was wanted. It results in a server TLS1.3 Certificates record having a single extension, placed after the first certificate of the three bundled in my testcase (leaf, signer, root). The extension is a certificate-status with three single-response items. This contrasts with the situation I had developed using GnuTLS (which accepts a multi-PEM file for proofs); it placed an extension with a single status after each of the three certificates. Are both layouts of the TLS1.3 Certificates record valid? FWIW, feeding this same multi-resp to GnuTLS makes it bahave the same way as OpenSSL. The triplet of single-responses is _also_ visible in a TLS1.2 Certificate Status record. -- Cheers, Jeremy