Remove digestString from api

multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bPure.kt

@@ -145,7 +145,7 @@ class Blake2bPure(val key: UByteArray? = null, val hashLength: Int = 64) : Blake
         }
 
 
-        override fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
+        fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
             val array = inputString.encodeToByteArray().toUByteArray()
             val keyBytes = key?.run {
                 encodeToByteArray().toUByteArray()
@@ -333,9 +333,6 @@ class Blake2bPure(val key: UByteArray? = null, val hashLength: Int = 64) : Blake
 
     }
 
-    override fun digestString(): String {
-        return digest().map { it.toString(16) }.joinToString(separator = "")
-    }
 
     private fun reset() {
         h = iv.copyOf()

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

@@ -64,7 +64,7 @@ class Sha256Pure : Sha256 {
         )
 
 
-        override fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
+        fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
             return digest(
                 inputString.encodeToByteArray().toUByteArray(),
                 key?.run { encodeToByteArray().toUByteArray()} ?: ubyteArrayOf(),
@@ -312,10 +312,6 @@ class Sha256Pure : Sha256 {
         return digest
     }
 
-    override fun digestString(): String {
-        return digest().map { it.toString(16) }.joinToString(separator = "")
-    }
-
     private fun appendToBuffer(array: UByteArray, start: Int) {
         array.copyInto(destination = buffer, destinationOffset = start, startIndex = 0, endIndex = array.size)
         bufferCounter += array.size

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

@@ -16,8 +16,6 @@
 
 package com.ionspin.kotlin.crypto.hash.sha
 
-import com.ionspin.kotlin.crypto.hash.StatelessHash
-import com.ionspin.kotlin.crypto.hash.UpdatableHash
 import com.ionspin.kotlin.crypto.util.rotateRight
 
 /**
@@ -134,14 +132,6 @@ class Sha512Pure : Sha512 {
         )
 
 
-        override fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
-            return digest(
-                inputString.encodeToByteArray().toUByteArray(),
-                key?.run { encodeToByteArray().toUByteArray() } ?: ubyteArrayOf(),
-                hashLength = hashLength
-            )
-        }
-
         override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
 
             var h = iv.copyOf()
@@ -389,10 +379,6 @@ class Sha512Pure : Sha512 {
         return digest
     }
 
-    override fun digestString(): String {
-        return digest().map { it.toString(16) }.joinToString(separator = "")
-    }
-
     private fun appendToBuffer(array: UByteArray, start: Int) {
         array.copyInto(destination = buffer, destinationOffset = start, startIndex = 0, endIndex = array.size)
         bufferCounter += array.size

multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bInstanceTest.kt

@@ -16,6 +16,7 @@
 
 package com.ionspin.kotlin.crypto.hash.blake2b
 
+import com.ionspin.kotlin.crypto.util.toHexString
 import kotlin.test.Test
 import kotlin.test.assertTrue
 
@@ -64,7 +65,7 @@ class Blake2bInstanceTest {
         for (i in 0 until updates) {
             blake2b.update(input)
         }
-        val result = blake2b.digestString()
+        val result = blake2b.digest().toHexString()
         assertTrue {
             result == expectedResult
         }