Aaron Lew

Closes #991 #### Summary This change adds support for creating and verifying DSSE attestations.

Since `integrated_time` is a required field in the bundle proto, it has been considered a missing field if not initialized when writing to a bundle. The field has been temporarily...

#### Summary This change fixes a bug due to which portless Fulcio service URLs were not provided the port set by `grpcPort` when being converted to a Fulcio gRPC URL.

Update e2e tests to use scaffolding containers

1

Closes #4281 #### Summary This change simplifies the end-to-end testing bash script by leveraging the scaffolding containers.

**Description** For signing and attestation commands, a bundle file path input is not required. However, a lack of this input causes a signing or attestation event that does not produce...