sign

        # OpenSSL::OCSP::Request.sign

(from ruby core)
### Implementation from Request
---
    request.sign(cert, key, certs = nil, flags = 0, digest = nil) -> self

---

Signs this OCSP request using *cert*, *key* and optional *digest*. If
*digest* is not specified, SHA-1 is used. *certs* is an optional Array
of additional certificates which are included in the request in addition
to the signer certificate. Note that if *certs* is `nil` or not given,
flag OpenSSL::OCSP::NOCERTS is enabled. Pass an empty array to include
only the signer certificate.

*flags* is a bitwise OR of the following constants:

OpenSSL::OCSP::NOCERTS
:   Don't include any certificates in the request. *certs* will be
    ignored.