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## fastpbkdf2-hs
Haskell bindings to the [fastpbkdf2](https://github.com/ctz/fastpbkdf2) library. This is currently (Dec 2016) the
*fastest* Haskell library for computing the `pbkdf2`, outperforming competitors by several order of magnitude (unsuprisingly,
as it hooks into some C code!):
```
benchmarking sha1/fastpbkdf2
time 4.948 ms (4.850 ms .. 5.040 ms)
0.998 R² (0.997 R² .. 0.999 R²)
mean 4.767 ms (4.707 ms .. 4.825 ms)
std dev 186.5 μs (152.3 μs .. 244.2 μs)
variance introduced by outliers: 20% (moderately inflated)
benchmarking sha1/cryptonite
time 29.61 ms (29.04 ms .. 30.03 ms)
0.999 R² (0.997 R² .. 1.000 R²)
mean 29.82 ms (29.47 ms .. 30.40 ms)
std dev 916.0 μs (527.1 μs .. 1.579 ms)
benchmarking sha1/pbkdf2
time 8.032 s (7.899 s .. 8.248 s)
1.000 R² (1.000 R² .. 1.000 R²)
mean 7.941 s (7.911 s .. 7.995 s)
std dev 47.08 ms (0.0 s .. 48.71 ms)
variance introduced by outliers: 19% (moderately inflated)
```
### Installation
This library depends from `OpenSSL`. I have tried to make this self-contained, but the
crypto layer of OpenSSL (or BoringSSL) requires some fine-tuned ASM code generated during
the build process. Porting everything over in a customised `Build.hs` would have been too
much pain, but PR are super welcome!