Hello,
I'm working on an application that generates PKCS#7 SignedData structures, but
with a slightly different format to S/MIME. We're using a version 3 SignedData
structure, and minor changes such as no signingTime in the Authenticated
Attributes. As such, I'm working at the level using functions such as
PKCS7_dataInit() and PKCS7_dataFinal() functions.
Our application requires the encrypted digest's OID to be
sha256withRSAEncryption (oid = 1.2.840.113549.1.1.11). The default however is
the standard rsaEncryption (oid = 1.2.840.113549.1.1.1), and I can't figure out
how to change the oid, without causing memory errors. From following the
function calls, this default seems to come from the Private Key. Is there a way
to do this? I've already created a new NID. I'm using sha256() as the digest
algorithm.
Further to the above, is there a way to also implement the RSASSA-PSS signature
scheme for signing the content?
Thanks for any help
Regards
Rob Smith
