RISC-V Instruction Set Extensions for Cryptography - From Research to Standardization (F. Oberhansl)

The introduction of RISC-V democratized the discussion about the features of an instruction set architecture. Cryptographers made extensive use of this possibility and made various proposals for the secure and efficient integration of different cryptographic schemes. In 2021, a first volume of RISC-V cryptography extensions was ratified. This talk summarizes various proposals for extensions that were made by researchers, if and how they made their way into RISC-V, and what the future of cryptographic extensions might look like.