This directory contains implementations of executor's runtime. The executor runtime provides interfaces (I/O) between executors (in trusted execution environment) and external components (in untrusted world like file system). The interfaces are defined in the TeaclaveRuntime traits. Currently, we have two runtime implementations: DefaultRuntime and RawIoRuntime. By default, Teaclave provides a runtime called DefaultRuntime, which bridges interfaces to our secure file system implementation (i.e., protected file). While RawIoRuntime is only for debugging, which does not encrypt any I/O.