Removed digest from stateless has interface and pushed it down, as some hashes don't support keys or different hash lengths

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

@@ -39,11 +39,6 @@ interface UpdatableHash : Hash {
 
 interface StatelessHash : Hash {
 
-    fun digest(
-        inputMessage: UByteArray = ubyteArrayOf(),
-        key: UByteArray = ubyteArrayOf(),
-        hashLength: Int = MAX_HASH_BYTES
-    ): UByteArray
 }
 
 fun String.encodeToUByteArray() : UByteArray{

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

@@ -21,5 +21,11 @@ interface Blake2b : UpdatableHash {
 interface Blake2bStateless : StatelessHash {
     override val MAX_HASH_BYTES: Int
         get() = Blake2bProperties.MAX_HASH_BYTES
+
+    fun digest(
+        inputMessage: UByteArray = ubyteArrayOf(),
+        key: UByteArray = ubyteArrayOf(),
+        hashLength: Int = MAX_HASH_BYTES
+    ): UByteArray
 }
 

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

@@ -19,4 +19,8 @@ interface Sha256 : UpdatableHash {
 interface StatelessSha256 : StatelessHash {
     override val MAX_HASH_BYTES: Int
         get() = Sha256Properties.MAX_HASH_BYTES
+
+    fun digest(
+        inputMessage: UByteArray = ubyteArrayOf()
+    ): UByteArray
 }

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

@@ -18,4 +18,8 @@ interface Sha512 : UpdatableHash {
 interface StatelessSha512 : StatelessHash {
     override val MAX_HASH_BYTES: Int
         get() = Sha256Properties.MAX_HASH_BYTES
+
+    fun digest(
+        inputMessage: UByteArray = ubyteArrayOf()
+    ): UByteArray
 }

multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt

@@ -24,7 +24,7 @@ actual class Sha256Delegated actual constructor(key: UByteArray?, hashLength: In
 
 actual object Sha256StatelessDelegated : StatelessSha256 {
 
-    override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+    override fun digest(inputMessage: UByteArray): UByteArray {
         TODO("not implemented yet")
     }
 }

multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt

@@ -24,7 +24,7 @@ actual class Sha512Delegated actual constructor(key: UByteArray?, hashLength: In
 
 actual object Sha512StatelessDelegated : StatelessSha512 {
 
-    override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+    override fun digest(inputMessage: UByteArray): UByteArray {
         TODO("not implemented yet")
     }
 }

multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256StatelessDelegated.kt

@@ -26,7 +26,7 @@ actual class Sha256Delegated actual constructor(key: UByteArray?, hashLength: In
 
 actual object Sha256StatelessDelegated : StatelessSha256 {
 
-    override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+    override fun digest(inputMessage: UByteArray): UByteArray {
         TODO("not implemented yet")
     }
 }

multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt

@@ -24,7 +24,7 @@ actual class Sha512Delegated actual constructor(key: UByteArray?, hashLength: In
 
 actual object Sha512StatelessDelegated : StatelessSha512 {
 
-    override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+    override fun digest(inputMessage: UByteArray): UByteArray {
         TODO("not implemented yet")
     }
 }

multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt

@@ -1,5 +1,8 @@
 package com.ionspin.kotlin.crypto.hash.sha
 
+import com.ionspin.kotlin.crypto.hash.blake2b.Blake2bDelegatedStateless
+import kotlinx.cinterop.pin
+
 /**
  * Created by Ugljesa Jovanovic
  * ugljesa.jovanovic@ionspin.com
@@ -27,7 +30,9 @@ actual class Sha256Delegated actual constructor(key: UByteArray?, hashLength: In
 }
 actual object Sha256StatelessDelegated : StatelessSha256 {
 
-    override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+    override fun digest(inputMessage: UByteArray): UByteArray {
+        val hashResult = UByteArray(Blake2bDelegatedStateless.MAX_HASH_BYTES)
+        val hashResultPinned = hashResult.pin()
         TODO("not implemented yet")
     }
 

multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt

@@ -24,7 +24,7 @@ actual class Sha512Delegated actual constructor(key: UByteArray?, hashLength: In
 
 actual object Sha512StatelessDelegated : StatelessSha512 {
 
-    override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+    override fun digest(inputMessage: UByteArray): UByteArray {
         TODO("not implemented yet")
     }
 }

multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Pure.kt

@@ -64,14 +64,7 @@ class Sha256Pure : Sha256 {
         )
 
 
-        fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
+        override fun digest(inputMessage: UByteArray): UByteArray {
-            return digest(
-                inputString.encodeToByteArray().toUByteArray(),
-                key?.run { encodeToByteArray().toUByteArray()} ?: ubyteArrayOf(),
-                hashLength)
-        }
-
-        override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
 
             var h = iv.copyOf()
 

multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Pure.kt

@@ -132,7 +132,7 @@ class Sha512Pure : Sha512 {
         )
 
 
-        override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
+        override fun digest(inputMessage: UByteArray): UByteArray {
 
             var h = iv.copyOf()