diff --git a/library/src/main/java/com/github/markowanga/timberloggingtofile/LogManager.kt b/library/src/main/java/com/github/markowanga/timberloggingtofile/LogManager.kt
index 2100cda..a3fbd81 100644
--- a/library/src/main/java/com/github/markowanga/timberloggingtofile/LogManager.kt
+++ b/library/src/main/java/com/github/markowanga/timberloggingtofile/LogManager.kt
@@ -3,6 +3,8 @@ package com.github.markowanga.timberloggingtofile
 import android.content.Context
 import androidx.core.content.ContextCompat
 import java.io.File
+import java.time.Instant
+import java.time.temporal.ChronoUnit
 
 object LogManager {
 
@@ -24,4 +26,12 @@ object LogManager {
             }
         }
 
+    fun removeFilesOlderThanDays(daysCount: Long, rootFile: File) {
+        val minimumBefore = Instant.now().minus(daysCount, ChronoUnit.DAYS)
+        (rootFile.listFiles()?.toList() ?: listOf())
+            .filter { it.isFile }
+            .filter { Instant.ofEpochMilli(it.lastModified()).isBefore(minimumBefore) }
+            .forEach { it.delete() }
+    }
+
 }
diff --git a/library/src/main/java/com/github/markowanga/timberloggingtofile/TextCrypt.kt b/library/src/main/java/com/github/markowanga/timberloggingtofile/TextCrypt.kt
index 0eb6dce..3523867 100644
--- a/library/src/main/java/com/github/markowanga/timberloggingtofile/TextCrypt.kt
+++ b/library/src/main/java/com/github/markowanga/timberloggingtofile/TextCrypt.kt
@@ -1,20 +1,14 @@
 package com.github.markowanga.timberloggingtofile
 
 import android.annotation.SuppressLint
-import android.util.Base64
 import javax.crypto.Cipher
 import javax.crypto.SecretKey
 import javax.crypto.spec.SecretKeySpec
 
-fun ByteArray.toBase64(): String = Base64.encodeToString(this, Base64.DEFAULT)
 
-fun String.toBytesFromBase64(): ByteArray =
-    Base64.decode(this, Base64.DEFAULT)
+class TextCrypt(password: String) {
 
-
-class TextCrypt(private val password: String) {
-
-    private val secretKey: SecretKey = generateKey()
+    private val secretKey: SecretKey = generateKey(password)
 
     @SuppressLint("GetInstance")
     private val encryptCipher = Cipher.getInstance("AES/ECB/PKCS5Padding")
@@ -24,7 +18,7 @@ class TextCrypt(private val password: String) {
     private val decryptCipher = Cipher.getInstance("AES/ECB/PKCS5Padding")
         .also { it.init(Cipher.DECRYPT_MODE, secretKey) }
 
-    private fun generateKey(): SecretKey {
+    private fun generateKey(password: String): SecretKey {
         return SecretKeySpec(password.toByteArray(), "AES")
     }
 
diff --git a/library/src/main/java/com/github/markowanga/timberloggingtofile/Utils.kt b/library/src/main/java/com/github/markowanga/timberloggingtofile/Utils.kt
new file mode 100644
index 0000000..bd170aa
--- /dev/null
+++ b/library/src/main/java/com/github/markowanga/timberloggingtofile/Utils.kt
@@ -0,0 +1,10 @@
+package com.github.markowanga.timberloggingtofile
+
+import android.util.Base64
+
+
+fun ByteArray.toBase64(): String = Base64.encodeToString(this, Base64.DEFAULT)
+
+fun String.toBytesFromBase64(): ByteArray =
+    Base64.decode(this, Base64.DEFAULT)
+