Replies: 6 comments 2 replies
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按文献2的实现,结果不对:
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按文献4的实现是ok的 |
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文献1的Middle方法应该是错误的 |
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这种大并行的算法,一个很重要的优化方向就是内存的使用。如果amd64 CPU有avx2特性,大概率有AES-NI,用AES-NI+AVX2 和 用AVX2+bitsliced比较,目前来看还是AES-NI+AVX2有优势:灵活(针对加密数据长度以及加密模式),内存占用小,性能还算好。目前结论:emmansun/sm4bs#1 |
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经过持续优化,256组并行比特切片实现的性能终于超过了目前的AES-NI + AVX2实现,不过不多。 |
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