SM4 with GFNI

参考

• Efficient Constant-Time Implementation of SM4 with Intel GFNI instruction set extension and Arm NEON coprocessor
• Unexpected Uses for the Galois Field Affine Transformation Instruction
• [PATCH 2/3] Add SM4 x86-64/GFNI/AVX2 implementation
• crypto: aria: add ARIA AES-NI/AVX/x86_64/GFNI implementation
• Intel® Integrated Performance Primitives Cryptography Acceleration on 3rd Generation Intel® Xeon® Processor Scalable and 10th Gen Intel® Core™ Processors
• SM4 GFNI
• gf2p8affineqb: int8 shifting

SM4 SBOX实现对比

AESNI

1. 多条指令实现的仿射
2. Shift Rows Inverse （Optional）
3. AESENCLAST
4. 多条指令实现的仿射

示例代码

GFNI

1. Affine Transformation (单指令)
2. Affine Transformation Inverse (单指令)

示例代码

生成映射

AES SM4 GFNI