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Imperas maintain pre-built toolchains for various in-progress RISC-V extensions here. See the "rvk-*" branches for scalar crypto.

GCC and

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Binutils

• Experimental / development toolchain available in the riscv-crypto repository.
  
  • This cannot be up-streamed, but can be used for development work for now.
• Intrinsics proposal from Markku
• PLCT Lab are starting this work in an up-streamable way.Expecting an update next week. I.e. by March 20'thlab have developed complete Binutils and GCC patches.
  • The pull requests into the main RISC-V repos can be found here:
    • Binutils pull request: https://github.com/riscv/riscv-binutils-gdb/pull/254
    • GCC pull request: https://github.com/riscv/riscv-gcc/pull/250 (merged)
  • The PLCT lab continuous integration server can be found here:
    • https://ci.rvperf.org/view/Krypto-Scalar/
    • This is a good place to start for re-producing the PLCT builds of GCC/Binutils
  • Some small changes will be needed as we move to v1.0 of scalar crypto around encodings.

LLVM

• Work will be done by PLTC lab under the group contributor model.
  • Github repository
  • Continuous integration status
  Meeting on Weds 10'th Feb to discuss progress.
• Slides from PLCT Update Weds 10'th Feb
• See link to Intrinsics proposal, aboveAs of 21'st April '21, LLVM work is mostly complete, waiting on PLCT lab for an update about merging things upstream.
  • Some small changes will be needed as we move to v1.0 of scalar crypto around encodings.

Simulators

Though all listed under "simulators", these are actually a collection of formal model / virtual machine / architectural simulators / DV simulators etc.

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• Work will be done by PLTC lab under the group contributor model.
  • Github repository
  • Continuous integration status
  • Next meeting will be on or about April 1'st 2021Waiting to hear back from PLCT on status.

Proof-of-Concept implementations

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