Adding secret stream impl, completed generichash impl

multiplatform-crypto-libsodium-bindings/src/jsMain/kotlin/com/ionspin/kotlin/crypto/generichash/GenericHash.kt

@@ -0,0 +1,47 @@
+package com.ionspin.kotlin.crypto.generichash
+
+import com.ionspin.kotlin.crypto.getSodium
+import ext.libsodium.com.ionspin.kotlin.crypto.toUByteArray
+import ext.libsodium.com.ionspin.kotlin.crypto.toUInt8Array
+import org.khronos.webgl.Uint8Array
+
+/**
+ * Created by Ugljesa Jovanovic
+ * ugljesa.jovanovic@ionspin.com
+ * on 21-Aug-2020
+ */
+
+actual typealias GenericHashStateInternal = Any
+
+actual object GenericHash {
+    actual fun genericHash(
+        message: UByteArray,
+        requestedHashLength: Int,
+        key: UByteArray?
+    ): UByteArray {
+        return getSodium().crypto_generichash(
+            requestedHashLength,
+            message.toUInt8Array(),
+            key?.toUInt8Array() ?: Uint8Array(0)
+        ).toUByteArray()
+    }
+
+    actual fun genericHashInit(
+        requestedHashLength: Int,
+        key: UByteArray?
+    ): GenericHashState {
+        val state = getSodium().crypto_generichash_init(key.toUInt8Array(), requestedHashLength)
+        return GenericHashState(requestedHashLength, state)
+    }
+
+    actual fun genericHashUpdate(
+        state: GenericHashState,
+        messagePart: UByteArray
+    ) {
+        getSodium().crypto_generichash_update(state.internalState, messagePart.toUInt8Array())
+    }
+
+    actual fun genericHashFinal(state: GenericHashState): UByteArray {
+        return getSodium().crypto_generichash_final(state.internalState, state.hashLength).toUByteArray()
+    }
+}

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

@@ -1,25 +0,0 @@
-package com.ionspin.kotlin.crypto.generichash
-
-import com.ionspin.kotlin.crypto.getSodium
-import ext.libsodium.com.ionspin.kotlin.crypto.toUByteArray
-import ext.libsodium.com.ionspin.kotlin.crypto.toUInt8Array
-import org.khronos.webgl.Uint8Array
-
-/**
- * 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 {
-        return getSodium().crypto_generichash(
-            requestedHashLength,
-            message.toUInt8Array(),
-            key?.toUInt8Array() ?: Uint8Array(0)
-        ).toUByteArray()
-    }
-}