Unable to mock a TimeStampReponse

[koen-serry]

Hi, i'm trying to create a sample TimeStampResp, but for some reason the const OID_CONTENT_TYPE_TST_INFO cannot be assigned to the content_type of the TimeStampToken.

It fails on the content_type, it's probably a stupid thing but I can't get it to work. Even assigning it to a temp Oid via Oid::<Bytes>::from(OID_CONTENT_TYPE_TST_INFO.0); didn't work. It seems that content_type and the const are of a different type but I'm unable to grasp why that is or how to convert one into the other.

let tst_response = TimeStampResp {
      status: PkiStatusInfo {
          status: PkiStatus::Granted,
          status_string: None,
          fail_info: None,
      },
      time_stamp_token: Some(
          TimeStampToken {
              content_type: OID_CONTENT_TYPE_TST_INFO, <-- expected struct `Bytes`, found `&[u8]`
              content: tst_capture,
          }
      ),
  };```

[indygreg]

The bcder crate can be very finicky.

You can try using the Constructed::decode() function from bcder to materialize a deserialized ASN.1 value from its bytes. In this case you want to feed in the raw bytes of an OID and parse into an Oid instance.

This is super inefficient but it seems to be one of the few ways you can coerce types in bcder.

You could also try Oid(Bytes::copy_from_slice(...)) to initialize an Oid from a Bytes created from an &[u8]. I do this a bunch in my apple-codesign crate.

[koen-serry]

Yes, the Oid(Bytes::copy_from_slice(OID_CONTENT_TYPE_TST_INFO.0)) did it. Thanks!