diff --git a/build.gradle.kts b/build.gradle.kts
index f2f567b..94b3697 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -20,7 +20,7 @@ plugins {
 }
 
 group = "net.sergeych"
-version = "0.8.2-SNAPSHOT"
+version = "0.8.3-SNAPSHOT"
 
 repositories {
     mavenCentral()
@@ -44,11 +44,11 @@ kotlin {
     linuxX64()
     linuxArm64()
 
-    macosX64()
-    macosArm64()
-    iosX64()
-    iosArm64()
-    iosSimulatorArm64()
+//    macosX64()
+//    macosArm64()
+//    iosX64()
+//    iosArm64()
+//    iosSimulatorArm64()
 //    mingwX64()
     @OptIn(ExperimentalWasmDsl::class)
     wasmJs {
@@ -72,7 +72,7 @@ kotlin {
                 implementation(project.dependencies.platform("org.kotlincrypto.hash:bom:0.5.1"))
                 implementation("org.kotlincrypto.hash:sha3")
                 api("com.ionspin.kotlin:bignum:0.3.9")
-                api("net.sergeych:mp_bintools:0.1.7")
+                api("net.sergeych:mp_bintools:0.1.11")
                 api("net.sergeych:mp_stools:1.5.1")
             }
         }
diff --git a/src/commonMain/kotlin/net/sergeych/crypto2/ByteChunk.kt b/src/commonMain/kotlin/net/sergeych/crypto2/ByteChunk.kt
deleted file mode 100644
index b619b7a..0000000
--- a/src/commonMain/kotlin/net/sergeych/crypto2/ByteChunk.kt
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (c) 2025. Sergey S. Chernov - All Rights Reserved
- *
- *  You may use, distribute and modify this code under the
- * terms of the private license, which you must obtain from the author
- *
- * To obtain the license, contact the author: https://t.me/real_sergeych or email to
- * real dot sergeych at gmail.
- */
-
-package net.sergeych.crypto2
-
-import kotlinx.serialization.Serializable
-import net.sergeych.bintools.decodeHex
-import net.sergeych.bintools.encodeToHex
-import kotlin.math.min
-
-/**
- * Bytes sequence with comparison, concatenation, and string representation,
- * could be used as hash keys for pure binary values, etc.
- */
-@Suppress("unused")
-@Serializable
-class ByteChunk(val data: UByteArray): Comparable<ByteChunk> {
-
-    val size: Int get() = data.size
-
-    /**
-     * Per-byte comparison also of different length. From two chunks
-     * of different size but equal beginning, the shorter is considered
-     * the smaller.
-     */
-    override fun compareTo(other: ByteChunk): Int {
-        val limit = min(size, other.size)
-        for( i in 0 ..< limit) {
-            val own = data[i]
-            val their = other.data[i]
-            if( own < their) return -1
-            else if( own > their) return 1
-        }
-        if( size < other.size ) return -1
-        if( size > other.size ) return 1
-        return 0
-    }
-
-    /**
-     * Equal chunks means content equality.
-     */
-    override fun equals(other: Any?): Boolean {
-        if (this === other) return true
-        if (other !is ByteChunk) return false
-
-        return data contentEquals other.data
-    }
-
-    /**
-     * Content-based hash code
-     */
-    override fun hashCode(): Int {
-        return data.contentHashCode()
-    }
-
-    /**
-     * hex representation of data
-     */
-    override fun toString(): String = base64Url
-
-    /**
-     * Hex encoded data
-     */
-    val hex by lazy { data.encodeToHex() }
-
-    val base64Url by lazy { data.encodeToBase64Url() }
-
-    /**
-     * human-readable dump
-     */
-    val dump by lazy { data.toDump() }
-
-    /**
-     * Concatenate two chunks and return new one
-     */
-    operator fun plus(other: ByteChunk): ByteChunk = ByteChunk(data + other.data)
-
-    fun toByteArray(): ByteArray = data.asByteArray()
-    fun toUByteArray(): UByteArray = data
-
-    companion object {
-        fun fromHex(hex: String): ByteChunk = ByteChunk(hex.decodeHex().asUByteArray())
-        fun random(sizeInBytes: Int=16) = randomUBytes(sizeInBytes).toChunk()
-    }
-}
-
-private fun UByteArray.toChunk(): ByteChunk = ByteChunk(this)
-@Suppress("unused")
-private fun ByteArray.toChunk(): ByteChunk = ByteChunk(this.asUByteArray())
-
-@Suppress("unused")
-fun ByteArray.asChunk() = ByteChunk(toUByteArray())
-fun UByteArray.asChunk(): ByteChunk = ByteChunk(this)
\ No newline at end of file
diff --git a/src/commonMain/kotlin/net/sergeych/crypto2/Hash.kt b/src/commonMain/kotlin/net/sergeych/crypto2/Hash.kt
index 18bdee9..4fedabf 100644
--- a/src/commonMain/kotlin/net/sergeych/crypto2/Hash.kt
+++ b/src/commonMain/kotlin/net/sergeych/crypto2/Hash.kt
@@ -14,6 +14,8 @@ import com.ionspin.kotlin.crypto.generichash.GenericHash
 import com.ionspin.kotlin.crypto.util.encodeToUByteArray
 import kotlinx.coroutines.channels.ReceiveChannel
 import kotlinx.coroutines.flow.Flow
+import net.sergeych.bintools.ByteChunk
+import net.sergeych.bintools.asChunk
 import org.kotlincrypto.hash.sha3.SHA3_256
 import org.kotlincrypto.hash.sha3.SHA3_384