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    SubjectRe: [intel-sgx-kernel-dev] [PATCH v11 13/13] intel_sgx: in-kernel launch enclave
    On Fri, Jun 8, 2018 at 10:32 AM Jarkko Sakkinen
    <jarkko.sakkinen@linux.intel.com> 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

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