diff --git a/README.md b/README.md
index 39bd2fd..727a258 100644
--- a/README.md
+++ b/README.md
@@ -115,7 +115,7 @@ Result is returned as a `UByteArray`
 
 ##### Updatable instance version
 You can create an instance and feed the data by using `update(input : UByteArray)` call. Once all data is supplied,
-you should call `digest()` or `digestString()` convenience method that converts the `UByteArray` into hexadecimal string.
+you should call `digest()`.
 
 If you want to use Blake2b with a key, you should supply it when creating the `Blake2b` instance.
 
diff --git a/multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/Hash.kt b/multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/Hash.kt
index 0b2dd6e..cbecaf3 100644
--- a/multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/Hash.kt
+++ b/multiplatform-crypto-api/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/Hash.kt
@@ -34,12 +34,10 @@ interface UpdatableHash : Hash {
 
     fun digest() : UByteArray
 
-    fun digestString() : String
 }
 
 
 interface StatelessHash : Hash {
-    fun digest(inputString: String, key: String? = null, hashLength: Int = MAX_HASH_BYTES): UByteArray
 
     fun digest(
         inputMessage: UByteArray = ubyteArrayOf(),
diff --git a/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt b/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
index 766fa14..3933813 100644
--- a/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
+++ b/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
@@ -26,9 +26,6 @@ actual class Blake2bDelegated actual constructor(key: UByteArray?, hashLength: I
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 
diff --git a/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt b/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt
index 2e738b4..7a04842 100644
--- a/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt
+++ b/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt
@@ -20,9 +20,6 @@ actual class Sha256Delegated actual constructor(key: UByteArray?, hashLength: In
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 actual object Sha256StatelessDelegated : StatelessSha256 {
diff --git a/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt b/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
index 8bb93f0..f107630 100644
--- a/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
+++ b/multiplatform-crypto-delegated/src/jsMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
@@ -20,9 +20,6 @@ actual class Sha512Delegated actual constructor(key: UByteArray?, hashLength: In
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 actual object Sha512StatelessDelegated : StatelessSha512 {
diff --git a/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt b/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
index 6474243..b787229 100644
--- a/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
+++ b/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
@@ -21,19 +21,11 @@ actual class Blake2bDelegated actual constructor(key: UByteArray?, hashLength: I
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 actual object Blake2bDelegatedStateless : Blake2bStateless {
 
 
-
-    override fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
-        TODO("not implemented yet")
-    }
-
     override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
         TODO("not implemented yet")
     }
diff --git a/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256StatelessDelegated.kt b/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256StatelessDelegated.kt
index 716a1da..81e110f 100644
--- a/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256StatelessDelegated.kt
+++ b/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256StatelessDelegated.kt
@@ -22,15 +22,9 @@ actual class Sha256Delegated actual constructor(key: UByteArray?, hashLength: In
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 actual object Sha256StatelessDelegated : StatelessSha256 {
-    override fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
-        TODO("not implemented yet")
-    }
 
     override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
         TODO("not implemented yet")
diff --git a/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt b/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
index 8bb93f0..fa313ca 100644
--- a/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
+++ b/multiplatform-crypto-delegated/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
@@ -20,15 +20,9 @@ actual class Sha512Delegated actual constructor(key: UByteArray?, hashLength: In
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 actual object Sha512StatelessDelegated : StatelessSha512 {
-    override fun digest(inputString: String, key: String?, hashLength: Int): UByteArray {
-        TODO("not implemented yet")
-    }
 
     override fun digest(inputMessage: UByteArray, key: UByteArray, hashLength: Int): UByteArray {
         TODO("not implemented yet")
diff --git a/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt b/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
index ee90cf5..4ca7bbb 100644
--- a/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
+++ b/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bDelegated.kt
@@ -46,9 +46,6 @@ actual class Blake2bDelegated actual constructor(key: UByteArray?, hashLength: I
         return hashResult
     }
 
-    override fun digestString(): String {
-        return digest().toHexString()
-    }
 }
 
 @Suppress("EXPERIMENTAL_API_USAGE", "EXPERIMENTAL_UNSIGNED_LITERALS")
diff --git a/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt b/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt
index cfa336b..fe4868a 100644
--- a/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt
+++ b/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Delegated.kt
@@ -21,9 +21,6 @@ actual class Sha256Delegated actual constructor(key: UByteArray?, hashLength: In
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 
 
 
diff --git a/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt b/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
index 8bb93f0..f107630 100644
--- a/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
+++ b/multiplatform-crypto-delegated/src/nativeMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Delegated.kt
@@ -20,9 +20,6 @@ actual class Sha512Delegated actual constructor(key: UByteArray?, hashLength: In
         TODO("not implemented yet")
     }
 
-    override fun digestString(): String {
-        TODO("not implemented yet")
-    }
 }
 
 actual object Sha512StatelessDelegated : StatelessSha512 {
diff --git a/multiplatform-crypto-delegated/src/nativeTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bLinuxTest.kt b/multiplatform-crypto-delegated/src/nativeTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bLinuxTest.kt
index 15882dc..172b383 100644
--- a/multiplatform-crypto-delegated/src/nativeTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bLinuxTest.kt
+++ b/multiplatform-crypto-delegated/src/nativeTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bLinuxTest.kt
@@ -8,6 +8,7 @@ package com.ionspin.kotlin.crypto.hash.blake2b
 
 import com.ionspin.kotlin.crypto.Crypto
 import com.ionspin.kotlin.crypto.util.testBlocking
+import com.ionspin.kotlin.crypto.util.toHexString
 import kotlinx.coroutines.runBlocking
 
 import kotlin.test.Test
@@ -26,7 +27,7 @@ class Blake2bLinuxTest {
     fun testBlake2bUpdateable() = testBlocking {
         val blake2b = Crypto.Blake2b.updateable()
         blake2b.update("test")
-        val result = blake2b.digestString()
+        val result = blake2b.digest().toHexString()
         println(result)
         assertTrue { result.length > 2 }
     }
diff --git a/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bPure.kt b/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bPure.kt
index 69ec520..dd8e75c 100644
--- a/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bPure.kt
+++ b/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()
diff --git a/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Pure.kt b/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Pure.kt
index 37b096b..8e8dd3a 100644
--- a/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha256Pure.kt
+++ b/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
diff --git a/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Pure.kt b/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Pure.kt
index 0e16e1a..170609c 100644
--- a/multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/hash/sha/Sha512Pure.kt
+++ b/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
diff --git a/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bInstanceTest.kt b/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bInstanceTest.kt
index 308b0cc..9e50e69 100644
--- a/multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/hash/blake2b/Blake2bInstanceTest.kt
+++ b/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
         }