On Fri, Jun 8, 2018 at 10:32 AM Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx> wrote: > > The Launch Enclave (LE) generates cryptographic launch tokens for user > enclaves. A launch token is used by EINIT to check whether the enclave > is authorized to launch or not. By having its own launch enclave, Linux > has full control of the enclave launch process. > > LE is wrapped into a user space proxy program that reads enclave > signatures outputs launch tokens. The kernel-side glue code is > implemented by using the user space helper framework. The IPC between > the LE proxy program and kernel is handled with an anonymous inode. > > The commit also adds enclave signing tool that is used by kbuild to > measure and sign the launch enclave. CONFIG_INTEL_SGX_SIGNING_KEY points > to a PEM-file for the 3072-bit RSA key that is used as the LE public key > pair. The default location is: It might be nice to use the infrastructure that Alexei added for bpfilter (the umh_blob stuff) here, which is slated for merging in this merge window. --Andy
