Secret new implementation (#90)

* Improve Secret memory usage

* Refactoring Secret internal

* Add isEquals

.scalafmt.conf

@@ -25,6 +25,12 @@ newlines.alwaysBeforeElseAfterCurlyIf = false
 rewrite.rules = [RedundantParens, SortImports]
 rewrite.redundantBraces.stringInterpolation = true
 
+docstrings.style = SpaceAsterisk
+docstrings.oneline = fold
+docstrings.removeEmpty = true
+docstrings.blankFirstLine = no
+docstrings.forceBlankLineBefore = true
+
 spaces.inImportCurlyBraces = false
 
 fileOverride {

config/src/main/scala/com/geirolz/app/toolkit/config/BytesUtils.scala

@@ -0,0 +1,20 @@
+package com.geirolz.app.toolkit.config
+
+import java.nio.ByteBuffer
+import java.util
+
+private[config] object BytesUtils {
+
+  def clearByteArray(bytes: Array[Byte]): Null = {
+    util.Arrays.fill(bytes, 0.toByte)
+    null
+  }
+
+  def clearByteBuffer(buffer: ByteBuffer): Null = {
+    val zeroBytesArray = new Array[Byte](buffer.capacity())
+    util.Arrays.fill(zeroBytesArray, 0.toByte)
+    buffer.clear()
+    buffer.put(zeroBytesArray)
+    null
+  }
+}