Hello,
I have a signedData package that contains an encryptedKeyPackage (specifically OID 2.16.840.1.101.2.1.2.78.2, aka id-ct-KP-encryptedKeyPkg) that I want to extract from it. I am somewhat able to extract the sequence that contains this data via the OpenSSL command line:
$ openssl asn1parse -in <my_pkg.der> -inform DER -strparse <hard-coded offset I computed>
However, I am looking for the OpenSSL calls to do the same thing, ideally extract package contents by its OID without having to know the offset (such that I can extract the data from any given package by that particular OID). How would I go about doing this? I've been looking endlessly into asn1.h and x509.h, and am able to somewhat parse the entire package into a structure, but I could use some guidance as to how to further break it down into parts. Thank you, and I hope to hear a response back soon. |
--
openssl-users mailing list
To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
