1.7 KiB
What is this?
This project contains a noop enclave with a single ECALL that does nothing. Its purpose is to demonstrate our ability to create a signed enclave and to test the signature process through an HSM.
How to run
The following Makefile targets execute different steps in the signing process and output into build/
make unsigned will build the unsigned enclave (noop_enclave.unsigned.so).
The following targets use OpenSSL instead of the HSM:
make signed-openssl will sign the unsigned enclave with openssl using selfsigning.pem (noop_enclave.signed.openssl.so).
make sigstruct-openssl will extract the SIGSTRUCT into a blob as well as a pretty printed txt from the openssl signed enclave (noop_enclave.sigstruct.openssl.bin, noop_enclave.sigstruct-pretty.openssl.txt).
The following targets use the HSM. They require an extra PROFILE=[dev|prod] argument to indicate whether to use a local HSM simulator or the real thing.
make generate-key-hsm PROFILE=[dev|prod] [OVERWRITE=true] will generate a fresh key for the profile. By default this will not overwrite an existing key, for that pass in MODE=overwrite.
make signed-hsm PROFILE=[dev|prod] will sign the unsigned enclave with the HSM. This target requires authentication (noop_enclave.signed.hsm.so).
make sigstruct-hsm PROFILE=[dev|prod] will extract the SIGSTRUCT into a blob as well as a pretty printed txt from the HSM signed enclave (noop_enclave.sigstruct.hsm.bin, noop_enclave.sigstruct-pretty.hsm.txt).
make noop_test will create a test binary that loads an enclave and runs the noop ECALL inside it. For example:
./build/noop_test ./build/noop_enclave.signed.openssl.so
will run the noop ECALL using the openssl signed enclave.