Added generic hash

multiplatform-crypto-libsodium-bindings/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/generichash/GenericHashing.kt

@@ -0,0 +1,45 @@
+package com.ionspin.kotlin.crypto.generichash
+
+import kotlin.Byte
+import kotlin.ByteArray
+import kotlin.Int
+import kotlin.UByte
+import kotlin.UByteArray
+import kotlinx.cinterop.addressOf
+import kotlinx.cinterop.convert
+import kotlinx.cinterop.pin
+import kotlinx.cinterop.pointed
+import kotlinx.cinterop.ptr
+import kotlinx.cinterop.reinterpret
+import kotlinx.cinterop.toCValues
+import libsodium.crypto_generichash
+import libsodium.crypto_generichash_blake2b_state
+import libsodium.crypto_hash_sha256_state
+import libsodium.crypto_hash_sha512_state
+import libsodium.crypto_secretstream_xchacha20poly1305_state
+import libsodium.sodium_malloc
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 21-Aug-2020
+ */
+actual object GenericHashing {
+    actual fun genericHash(message: UByteArray, requestedHashLength: Int, key: UByteArray?) : UByteArray {
+        val hash = UByteArray(requestedHashLength)
+        val pinnedHash = hash.pin()
+        val pinnedKey = key?.pin()
+        val pinnedMessage = message.pin()
+        crypto_generichash(
+            pinnedHash.addressOf(0),
+            requestedHashLength.convert(),
+            pinnedMessage.addressOf(0),
+            message.size.convert(),
+            pinnedKey?.addressOf(0),
+            (key?.size ?: 0).convert()
+        )
+        pinnedHash.unpin()
+        pinnedKey?.unpin()
+        pinnedMessage.unpin()
+        return hash
+    }
+}

multiplatform-crypto-libsodium-bindings/src/nativeMain/kotlin/debug/test/DebugTest.kt

@@ -170,7 +170,7 @@ actual class Crypto internal actual constructor() {
     val pinnedC = c.pin()
     val pinnedAd = ad.pin()
     libsodium.crypto_secretstream_xchacha20poly1305_pull(state.ptr, pinnedM.addressOf(0), null,
-        tag_p, pinnedC.addressOf(0), c.size.convert(), pinnedAd.addressOf(0), ad.size.convert())
+        ubyteArrayOf().toCValues(), pinnedC.addressOf(0), c.size.convert(), pinnedAd.addressOf(0), ad.size.convert())
     pinnedM.unpin()
     pinnedC.unpin()
     pinnedAd.unpin()