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56 lines
1.8 KiB
Markdown
56 lines
1.8 KiB
Markdown
[](https://godoc.org/github.com/aead/siphash)
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[](https://travis-ci.org/aead/siphash)
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## The SipHash pseudo-random function
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SipHash is a family of pseudo-random functions (a.k.a. keyed hash functions) optimized for speed on short messages.
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SipHash computes a 64-bit or 128 bit message authentication code from a variable-length message and 128-bit secret key.
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This implementation uses the recommended parameters c=2 and d=4.
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### Installation
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Install in your GOPATH: `go get -u github.com/aead/siphash`
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### Performance
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**AMD64**
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Hardware: Intel i7-6500U 2.50GHz x 2
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System: Linux Ubuntu 16.04 - kernel: 4.4.0-67-generic
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Go version: 1.8.0
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```
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name speed cpb
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Write_8-4 688MB/s ± 0% 3.47
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Write_1K-4 2.09GB/s ± 5% 1.11
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Sum64_8-4 244MB/s ± 1% 9.77
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Sum64_1K-4 2.06GB/s ± 0% 1.13
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Sum128_8-4 189MB/s ± 0% 12.62
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Sum128_1K-4 2.03GB/s ± 0% 1.15
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```
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**386**
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Hardware: Intel i7-6500U 2.50GHz x 2 - SSE2 SIMD
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System: Linux Ubuntu 16.04 - kernel: 4.4.0-67-generic
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Go version: 1.8.0
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```
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name speed cpb
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Write_8-4 434MB/s ± 2% 5.44
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Write_1K-4 1.24GB/s ± 1% 1.88
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Sum64_8-4 92.6MB/s ± 4% 25.92
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Sum64_1K-4 1.15GB/s ± 1% 2.03
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Sum128_8-4 61.5MB/s ± 5% 39.09
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Sum128_1K-4 1.10GB/s ± 0% 2.12
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```
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**ARM**
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Hardware: ARM-Cortex-A7 (ARMv7) 1GHz (912MHz) x 2
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System: Linux Ubuntu 14.04.1 - kernel: 3.4.112-sun7i
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Go version: 1.7.4
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```
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name speed cpb
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Write_8-2 43.4MB/s ± 2% 21.97
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Write_1K-2 125MB/s ± 1% 7.63
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Sum64_8-2 6.51MB/s ± 1% 146.49
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Sum64_1K-2 111MB/s ± 1% 8.59
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Sum128_8-2 3.82MB/s ± 2% 249.65
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Sum128_1K-2 101MB/s ± 1% 9.44
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```
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