Version 1.0.0

v1.0.0 is the first version based on OpenSBI!

Major Updates:

• #213 Complete RV32 support
• #212 The security monitor (SM) has been moved from BBL to OpenSBI.
• #208 Integration with FireMarshal
• #195 Toolchain has been updated to the latest (2021.01)
• #188 Major refactoring of Keystone SDK
• #175 Sealing key derivation similar to Intel SGX

Minor Updates

• Fixed major bugs: #127 #147 #148
• #224 Switch CI from TravisCI to CircleCI
• #177 Use MPRV for all S/U-mode accesses in SM

Known Issues:

• #231 keystone-demo is obsolete
• #229 libc doesn't work (e.g., hello.ke)
• SM Rust implementation has not been ported to OpenSBI yet

Not Tested:

• [sifive/fu540] cache partitioning
• [sifive/fu540] software-based memory encryption
• seL4 runtime

Version 0.4

• Switch build system to CMake
• Experimental Rust port of the security monitor
• Bumped submodules to their upstreams -- Linux (5.3), Buildroot (2019. 08), QEMU (4.1)
• Runinng on VC707 FPGA (See KEYSTONE-FPGA.md)
• Undelegate interrupts from the enclave -- temporary solution for DoS
• Demand paging extension w/o documentation

Version 0.3

New:

• documentation
• build flow and tools
• plugins for both the SM and Eyrie runtimes
• new buildroot
• libc support for enclaves
• standard RISC-V binary support
• Many further changes, see logs and keystone-enclave.org/blog

Version 0.2

New build system integrated with hifive build, switch to buildroot rather than busybear. Innumerable other fixes and updates.