Org.BouncyCastle.Ocsp.OcspReq
Return whether or not this request is signed.
The object identifier representing the signature algorithm.
If the request is signed return a possibly empty CertStore containing the certificates in the
request. If the request is not signed the method returns null.
Return the ASN.1 encoded representation of this object.
Return the DER encoding of the tbsRequest field.
Verify the signature against the TBSRequest object we contain.