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Updated SM4性能优化 (markdown)

Sun Yimin 2021-03-31 11:54:37 +08:00
parent 3ef0ed30f0
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SM4性能优化.md

@ -94,6 +94,24 @@ asm部分改造自aes的实现，优化结果很惊人！
# CCM及CMAC
CMAC使用CBC模式加密来生成MAC，基于CBC模式的串行化特点以及block加密的性能，其性能必定没有GCM模式好。这里有个相关的讨论：[proposal: crypto/tls: add support for AES-CCM #27484](https://github.com/golang/go/issues/27484)
CPU: i5-9500
goos: windows
goarch: amd64
BenchmarkAESCCMSign1K-6 1000000 1242 ns/op 824.78 MB/s 656 B/op 6 allocs/op
BenchmarkSM4CCMSign1K-6 81297 14768 ns/op 69.34 MB/s 688 B/op 6 allocs/op
BenchmarkAESCCMSeal1K-6 522488 2362 ns/op 433.44 MB/s 656 B/op 6 allocs/op
BenchmarkSM4CCMSeal1K-6 61077 19103 ns/op 53.61 MB/s 688 B/op 6 allocs/op
BenchmarkAESCCMOpen1K-6 546088 2330 ns/op 439.54 MB/s 656 B/op 6 allocs/op
BenchmarkSM4CCMOpen1K-6 64393 19265 ns/op 53.15 MB/s 688 B/op 6 allocs/op
BenchmarkAESCCMSign8K-6 160434 7566 ns/op 1082.71 MB/s 656 B/op 6 allocs/op
BenchmarkSM4CCMSign8K-6 10000 114325 ns/op 71.66 MB/s 688 B/op 6 allocs/op
BenchmarkAESCCMSeal8K-6 74269 15840 ns/op 517.17 MB/s 656 B/op 6 allocs/op
BenchmarkSM4CCMSeal8K-6 8020 143910 ns/op 56.92 MB/s 689 B/op 6 allocs/op
BenchmarkAESCCMOpen8K-6 77215 15650 ns/op 523.44 MB/s 656 B/op 6 allocs/op
BenchmarkSM4CCMOpen8K-6 8575 143358 ns/op 57.14 MB/s 688 B/op 6 allocs/op
可以看到AMD64下，sm4-ccm的性能大概是sm4-gcm的1/5。
# CFB和OFB
Golang没提供这两种模式的优化接口，可能这两种模式不怎么推荐使用了，况且也就CFB解密可以并行。