Cleaning up and implementing api

multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2b.kt

@@ -9,11 +9,17 @@ import com.ionspin.kotlin.crypto.hash.UpdatableHash
  * on 24-May-2020
  */
 
-interface Blake2b : UpdatableHash
-
-interface Blake2bStatelessInterface : StatelessHash {
-
-    override val MAX_HASH_BYTES: Int
-        get() = 64
+object Blake2bProperties {
+    const val MAX_HASH_BYTES = 64
+}
+
+interface Blake2b : UpdatableHash {
+    override val MAX_HASH_BYTES: Int
+        get() = Blake2bProperties.MAX_HASH_BYTES
+}
+
+interface Blake2bStateless : StatelessHash {
+    override val MAX_HASH_BYTES: Int
+        get() = Blake2bProperties.MAX_HASH_BYTES
 }
 

multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256.kt

@@ -8,5 +8,15 @@ import com.ionspin.kotlin.crypto.hash.UpdatableHash
  * ugljesa.jovanovic@ionspin.com
  * on 24-May-2020
  */
-interface Sha256 : UpdatableHash
-interface StatelessSha256 : StatelessHash
+object Sha256Properties {
+    const val MAX_HASH_BYTES = 32
+}
+
+interface Sha256 : UpdatableHash {
+    override val MAX_HASH_BYTES: Int
+        get() = Sha256Properties.MAX_HASH_BYTES
+}
+interface StatelessSha256 : StatelessHash {
+    override val MAX_HASH_BYTES: Int
+        get() = Sha256Properties.MAX_HASH_BYTES
+}

multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512.kt

@@ -8,5 +8,14 @@ import com.ionspin.kotlin.crypto.hash.UpdatableHash
  * ugljesa.jovanovic@ionspin.com
  * on 24-May-2020
  */
-interface Sha512 : UpdatableHash
-interface StatelessSha512 : StatelessHash
+object Sha512Properties {
+    const val MAX_HASH_BYTES = 64
+}
+interface Sha512 : UpdatableHash {
+    override val MAX_HASH_BYTES: Int
+        get() = Sha256Properties.MAX_HASH_BYTES
+}
+interface StatelessSha512 : StatelessHash {
+    override val MAX_HASH_BYTES: Int
+        get() = Sha256Properties.MAX_HASH_BYTES
+}