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Intel SHA Extensions are a set of extensions to the x86 instruction set architecture which support hardware acceleration of Secure Hash Algorithm (SHA) family. It was specified in 2013.[1] Instructions for SHA-512 was introduced in Arrow Lake and Lunar Lake in 2024.

The original SSE-based extensions added four instructions supporting SHA-1 and three for SHA-256.

  • SHA-1: SHA1RNDS4, SHA1NEXTE, SHA1MSG1, SHA1MSG2
  • SHA-256: SHA256RNDS2, SHA256MSG1, SHA256MSG2

The newer SHA-512 instruction set comprises AVX-based versions of the original SHA instruction set marked with a V prefix and these three new AVX-based instructions for SHA-512:

  • VSHA512RNDS2, VSHA512MSG1, VSHA512MSG2

x86 architecture processors

AMD

All recent AMD processors support the original SHA instruction set:

  • AMD Zen[2] (2017) and later processors.

Intel

The following Intel processors support the original SHA instruction set:

  • Intel Goldmont[3] (2016) and later Atom microarchitecture processors.
  • Intel Cannon Lake[4] (2018/2019), Ice Lake[5] (2019) and later processors for laptops ("mainstream mobile").
  • Intel Rocket Lake (2021) and later processors for desktop computers.

The following Intel processors will support the newer SHA-512 instruction set:

References

  1. ^ "New Instructions Supporting the Secure Hash Algorithm on Intel® Architecture Processors". intel.com. Retrieved 2024-07-25.
  2. ^ "Zen - Microarchitectures - AMD - WikiChip". en.wikichip.org. Retrieved 2024-07-25.
  3. ^ "Goldmont - Microarchitectures - Intel - WikiChip". en.wikichip.org. Retrieved 2024-07-25.
  4. ^ "Cannon Lake - Microarchitectures - Intel - WikiChip". en.wikichip.org. Retrieved 2024-07-25.
  5. ^ "Ice Lake (client) - Microarchitectures - Intel - WikiChip". en.wikichip.org. Retrieved 2024-07-25.


source: https://en.wikipedia.org/wiki/Intel_SHA_extensions