keccak: haskell keccak functions
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| Versions [RSS] | 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.2.0 |
|---|---|
| Dependencies | base (>=4.7 && <5), base16-bytestring, bytestring, keccak, vector [details] |
| License | MIT |
| Copyright | 2018 Roy Blankman |
| Author | Roy Blankman |
| Maintainer | blankman@boustro.com |
| Category | Crypto |
| Home page | https://github.com/aupiff/keccak#readme |
| Source repo | head: git clone https://github.com/aupiff/keccak |
| Uploaded | by aupiff at 2018-07-18T14:58:47Z |
| Distributions | |
| Executables | collision |
| Downloads | 2652 total (21 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs available [build log] Last success reported on 2018-07-18 [all 1 reports] |
Readme for keccak-0.1.3
[back to package description]keccak
A pure haskell implementation of the keccak family of hashes.
Documentation available on Hackage.
Example usage
In the example usage below, I encode ByteStrings in base16 so that they
can be read as standard hex strings.
ghci> import Data.ByteString.Base16 as BS16
ghci> :t keccak256
keccak256 :: BS.ByteString -> BS.ByteString
ghci> BS16.encode $ keccak256 "testing"
"5f16f4c7f149ac4f9510d9cf8cf384038ad348b3bcdc01915f95de12df9d1b02"
ghci> BS16.encode $ keccak256 ""
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
Testing
stack test
NIST uses the Secure Hash Algorithm Validation System
(SHAVS)
to validate the correctness of hash implementations. For all four variants of
SHA3 and Keccak, the keccak library's implementations successfully
pass the standard
KATs (Known Answer Tests).
Benchmarks
stack bench
cryptonite's C-based implementation of Keccack256 is currently 31x faster
than my Haskell.
benchmarked keccak
time 192.9 μs (189.3 μs .. 196.5 μs)
0.997 R² (0.994 R² .. 0.999 R²)
mean 196.2 μs (194.2 μs .. 199.8 μs)
std dev 8.622 μs (5.653 μs .. 12.30 μs)
variance introduced by outliers: 24% (moderately inflated)
benchmarked cryptonite-keccak
time 6.105 μs (6.038 μs .. 6.186 μs)
0.999 R² (0.998 R² .. 0.999 R²)
mean 6.302 μs (6.236 μs .. 6.413 μs)
std dev 293.5 ns (196.1 ns .. 440.9 ns)
variance introduced by outliers: 26% (moderately inflated)
Eventually, I hope the library will have very few dependencies (only base, vector & bytestring, currently) and excellent performance.