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# GM-Standards SM2/SM3/SM4 for Go
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[](https://travis-ci.org/emmansun/gmsm) [](https://godoc.org/github.com/emmansun/gmsm) [](https://github.com/emmansun/gmsm/releases)
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This is a **SM2 sm2p256v1** implementation whose performance is similar like golang native NIST P256 under **amd64** , for implementation detail, please refer https://github.com/emmansun/gmsm/wiki.
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This is also a **SM3** implementation whose performance is similar like golang native SHA 256 under **amd64** , for implementation detail, please refer https://github.com/emmansun/gmsm/wiki/SM3%E6%80%A7%E8%83%BD%E4%BC%98%E5%8C%96.
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For **SM4** implementation, AES-NI is used under **amd64** .
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**SM2 encryption Benchmark**
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P-256/SM2(No tuning)
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goos: windows
goarch: amd64
pkg: gmsm/sm2
BenchmarkLessThan32-6 210 5665861 ns/op 0.01 MB/s 2601864 B/op 27725 allocs/op
PASS
ok gmsm/sm2 5.629s
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P-256/SM2(with P256/SM2 curve pure golang implementation)
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goos: windows
goarch: amd64
pkg: gmsm/sm2
BenchmarkLessThan32_P256SM2-6 1027 1169516 ns/op 3874 B/op 74 allocs/op
PASS
ok gmsm/sm2 1.564s
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P-256/SM2(with P256/SM2 amd64 curve implementation, i think there are still improvement space for p256Sqr function)
goos: windows
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goarch: amd64
pkg: github.com/emmansun/gmsm/sm2
BenchmarkLessThan32_P256SM2-6 10447 115618 ns/op 2357 B/op 46 allocs/op
PASS
ok github.com/emmansun/gmsm/sm2 2.199s
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P-256 (SM2 based on NIST P-256 curve)
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goos: windows
goarch: amd64
pkg: gmsm/sm2
BenchmarkMoreThan32-6 13656 86252 ns/op 3141 B/op 50 allocs/op
PASS
ok gmsm/sm2 4.139s
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**SM3 hash Benchmark**
Pure golang version
goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/sm3
BenchmarkHash8K-6 27097 41112 ns/op 199.26 MB/s 0 B/op 0 allocs/op
PASS
ok github.com/emmansun/gmsm/sm3 3.463s
ASM (non-AVX2) version
goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/sm3
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BenchmarkHash8K-6 35080 33235 ns/op 246.49 MB/s 0 B/op 0 allocs/op
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PASS
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ok github.com/emmansun/gmsm/sm3 3.102s
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ASM AVX2 version
goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/sm3
BenchmarkHash8K-6 53208 22223 ns/op 368.63 MB/s 0 B/op 0 allocs/op
PASS
ok github.com/emmansun/gmsm/sm3 1.720s
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SHA256 ASM AVX2 version
goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/sm3
BenchmarkHash8K_SH256-6 68352 17116 ns/op 478.63 MB/s 0 B/op 0 allocs/op
PASS
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ok github.com/emmansun/gmsm/sm3 3.043s
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**SM4 Benchmark**
Pure golang version
goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/sm4
BenchmarkEncrypt-6 2671431 441 ns/op 36.28 MB/s 0 B/op 0 allocs/op
BenchmarkDecrypt-6 2709132 440 ns/op 36.40 MB/s 0 B/op 0 allocs/op
BenchmarkExpand-6 2543746 471 ns/op 16 B/op 1 allocs/op
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ASM AES-NI version
goos: windows
goarch: amd64
pkg: github.com/emmansun/gmsm/sm4
BenchmarkEncrypt-6 5076427 235 ns/op 68.09 MB/s 0 B/op 0 allocs/op
BenchmarkDecrypt-6 5122974 236 ns/op 67.71 MB/s 0 B/op 0 allocs/op
BenchmarkExpand-6 2583012 469 ns/op 16 B/op 1 allocs/op
PASS
ok github.com/emmansun/gmsm/sm4 6.193s
