Add RIPEMD160 hashing function

IntersectMBO · May 31, 2024 · 56d1af8 · 56d1af8
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diff --git a/cardano-crypto-class/CHANGELOG.md b/cardano-crypto-class/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog for `cardano-crypto-class`
 
+## 2.1.5.0
+* Add `RIMPEMD160` hashing function using `cryptonite` library
+  [#480](https://github.com/input-output-hk/cardano-base/pull/480)
+
 ## 2.1.2.0
 
 * Included bindings to `blst` library to enable operations over curve BLS12-381

diff --git a/cardano-crypto-class/cardano-crypto-class.cabal b/cardano-crypto-class/cardano-crypto-class.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.2
 name:               cardano-crypto-class
-version:            2.1.4.0
+version:            2.1.5.0
 synopsis:
   Type classes abstracting over cryptography primitives for Cardano
 
@@ -52,6 +52,7 @@ library
     Cardano.Crypto.Hash.Class
     Cardano.Crypto.Hash.Keccak256
     Cardano.Crypto.Hash.NeverUsed
+    Cardano.Crypto.Hash.RIPEMD160
     Cardano.Crypto.Hash.SHA256
     Cardano.Crypto.Hash.SHA3_256
     Cardano.Crypto.Hash.Short

diff --git a/cardano-crypto-class/src/Cardano/Crypto/Hash/RIPEMD160.hs b/cardano-crypto-class/src/Cardano/Crypto/Hash/RIPEMD160.hs
@@ -0,0 +1,23 @@
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE PackageImports #-}
+{-# LANGUAGE TypeFamilies #-}
+
+-- | Implementation of the RIPEMD-160 hashing algorithm.
+module Cardano.Crypto.Hash.RIPEMD160
+  ( RIPEMD160
+  )
+  where
+
+import Cardano.Crypto.Hash.Class
+import qualified "cryptonite" Crypto.Hash as H
+import qualified Data.ByteArray as BA
+
+data RIPEMD160
+
+instance HashAlgorithm RIPEMD160 where
+  type SizeHash RIPEMD160 = 20
+  hashAlgorithmName _ = "RIPEMD160"
+  digest _ = convert . H.hash
+
+convert :: H.Digest H.RIPEMD160 -> ByteString
+convert = BA.convert