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 introduced in 2013. Instructions for SHA-512 will be 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. AVX-based versions are also available with a V prefix.
- SHA-1:
SHA1RNDS4,SHA1NEXTE,SHA1MSG1,SHA1MSG2 - SHA-256:
SHA256RNDS2,SHA256MSG1,SHA256MSG2
The AVX-based extensions added three for SHA-512.
VSHA512RNDS2,VSHA512MSG1,VSHA512MSG2
x86 architecture processors[edit]
Intel[edit]
The following Intel processors support the original SHA instruction set:
- Intel Goldmont (and later Atom microarchitectures) processors.[1]
- Intel Ice Lake (and later) processors.[2]
- Intel Rocket Lake (and later) processors.
The following Intel processors will support the newer SHA-512 instruction set:
- Intel Arrow Lake and Lunar Lake processors.
AMD[edit]
Several AMD processors support the original SHA instruction set:
References[edit]
- ^ "Goldmont - Microarchitectures - Intel - WikiChip". en.wikichip.org. Retrieved 2020-06-26.
- ^ "Ice Lake (client) - Microarchitectures - Intel - WikiChip". en.wikichip.org. Retrieved 2020-06-26.
- ^ "Zen - Microarchitectures - AMD - WikiChip". en.wikichip.org. Retrieved 2020-06-26.
External links[edit]
- New Instructions Supporting the Secure Hash Algorithm on Intel® Architecture Processors
- Intel Instruction Set Architecture Extensions
- "Intel Architecture Instruction Set Extensions Programming Reference" (PDF). Archived from the original (PDF) on 2013-09-29., Chapter 8
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