I was looking at some RISC-V crypto code and learned about data-independent execution latency (DIEL)
https://riscv-software-src.github.io/riscv-unified-db/manual/html/isa/isa_20240411/chapters/vector-crypto.html#zvkt

It's #RISCV's equivalent to
👉 ARM's Cortex-A DIT
https://developer.arm.com/documentation/ddi0601/2022-06/AArch64-Registers/DIT--Data-Independent-Timing

👉 Intel's DOIT
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/best-practices/data-operand-independent-timing-isa-guidance.html

Related talk excellent talk by Markku-Juhani Saarinen https://www.youtube.com/watch?v=sZKbZfMj0Ek