dcap-retrieve-pckid vs aesm-client vs dcap-provider

A retrieval tool for the SGX PCK ID that works with AESM.

RPC client for Intel SGX AESM (Architectural Enclave Service Manager). With this client, applications can obtain launch tokens for enclaves and turn attestation reports into quotes.

DCAP quote provider using the Intel Trusted Services API as a backend. This crate compiles into `libdcap_quoteprov.so`, which is needed as a backend when using `libsgx_dcap_ql`. To use this library, the dynamic linker needs to be able to find it. This means you should install it in your system's library path or set the `LD_LIBRARY_PATH` environment variable. You must set your API key in the `OCP_APIM_SUBSCRIPTION_KEY` environment variable. You can sign up for a service subscription at https://api.portal.trustedservices.intel.com/. SGX: Software Guard Extensions DCAP: DataCenter Attestation Primitives QL: Quoting Library