verify

        # OpenSSL::Timestamp::Response.verify

(from ruby core)
### Implementation from Response
---
    response.verify(Request, root_store) -> Response
    response.verify(Request, root_store, [intermediate_cert]) -> Response

---

Verifies a timestamp token by checking the signature, validating the
certificate chain implied by tsa_certificate and by checking conformance
to a given Request. Mandatory parameters are the Request associated to
this Response, and an OpenSSL::X509::Store of trusted roots.

Intermediate certificates can optionally be supplied for creating the
certificate chain. These intermediate certificates must all be instances
of OpenSSL::X509::Certificate.

If validation fails, several kinds of exceptions can be raised:
*   TypeError if types don't fit
*   TimestampError if something is wrong with the timestamp token
    itself, if it is not conformant to the Request, or if validation of
    the timestamp certificate chain fails.