diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..1ff0c42
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,63 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln merge=binary
+#*.csproj merge=binary
+#*.vbproj merge=binary
+#*.vcxproj merge=binary
+#*.vcproj merge=binary
+#*.dbproj merge=binary
+#*.fsproj merge=binary
+#*.lsproj merge=binary
+#*.wixproj merge=binary
+#*.modelproj merge=binary
+#*.sqlproj merge=binary
+#*.wwaproj merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg binary
+#*.png binary
+#*.gif binary
+
+###############################################################################
+# diff behavior for common document formats
+#
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the
+# entries below.
+###############################################################################
+#*.doc diff=astextplain
+#*.DOC diff=astextplain
+#*.docx diff=astextplain
+#*.DOCX diff=astextplain
+#*.dot diff=astextplain
+#*.DOT diff=astextplain
+#*.pdf diff=astextplain
+#*.PDF diff=astextplain
+#*.rtf diff=astextplain
+#*.RTF diff=astextplain
diff --git a/Mk0.Tools.Password/Mk0.Tools.Password.sln b/Mk0.Tools.Password/Mk0.Tools.Password.sln
new file mode 100644
index 0000000..c654293
--- /dev/null
+++ b/Mk0.Tools.Password/Mk0.Tools.Password.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28010.2050
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mk0.Tools.Password", "Mk0.Tools.Password\Mk0.Tools.Password.csproj", "{B6F59B71-BD27-4D69-9D40-DD5820A0A645}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {B6F59B71-BD27-4D69-9D40-DD5820A0A645}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {B6F59B71-BD27-4D69-9D40-DD5820A0A645}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {B6F59B71-BD27-4D69-9D40-DD5820A0A645}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {B6F59B71-BD27-4D69-9D40-DD5820A0A645}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {039D5A9C-754B-47FC-A2D6-410CBEFF3286}
+ EndGlobalSection
+EndGlobal
diff --git a/Mk0.Tools.Password/Mk0.Tools.Password/Mk0.Tools.Password.csproj b/Mk0.Tools.Password/Mk0.Tools.Password/Mk0.Tools.Password.csproj
new file mode 100644
index 0000000..8572be2
--- /dev/null
+++ b/Mk0.Tools.Password/Mk0.Tools.Password/Mk0.Tools.Password.csproj
@@ -0,0 +1,48 @@
+
+
+
+
+ Debug
+ AnyCPU
+ {B6F59B71-BD27-4D69-9D40-DD5820A0A645}
+ Library
+ Properties
+ Mk0.Tools.Password
+ Mk0.Tools.Password
+ v4.6.1
+ 512
+ true
+
+
+ true
+ full
+ false
+ bin\Debug\
+ DEBUG;TRACE
+ prompt
+ 4
+
+
+ pdbonly
+ true
+ bin\Release\
+ TRACE
+ prompt
+ 4
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/Mk0.Tools.Password/Mk0.Tools.Password/PasswordStrength.cs b/Mk0.Tools.Password/Mk0.Tools.Password/PasswordStrength.cs
new file mode 100644
index 0000000..f73d4ea
--- /dev/null
+++ b/Mk0.Tools.Password/Mk0.Tools.Password/PasswordStrength.cs
@@ -0,0 +1,111 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.RegularExpressions;
+
+namespace Mk0.Tools.Password
+{
+ public class PasswordStrength
+ {
+ public double Score = 0;
+
+ private int punkte = 0;
+ private double cardinality = 0;
+
+ private bool hatNummer = false;
+ private bool hatLowercase = false;
+ private bool hatUppercase = false;
+ private bool hatSonderzeichen = false;
+
+ public PasswordStrength(string password)
+ {
+ if (string.IsNullOrEmpty(password.Trim()))
+ {
+ punkte = 0; //kein Passwort
+ }
+ else
+ {
+ if (password.Trim().Length < 6)
+ {
+ punkte = 1; //zu kurz
+ }
+ else
+ {
+ punkte = 2; //min Länge erreicht
+ if (password.Trim().Length >= 8) //1 pkt für je 2 stellen
+ {
+ punkte += ((password.Trim().Length - 8) / 2) + 1;
+ }
+ if (Regex.IsMatch(password.Trim(), @"[\d]", RegexOptions.ECMAScript)) //hat nummern
+ {
+ punkte += 5;
+ hatNummer = true;
+ }
+ if (Regex.IsMatch(password.Trim(), @"[a-z]", RegexOptions.ECMAScript)) //hat lowercase
+ {
+ punkte += 5;
+ hatLowercase = true;
+ }
+ if (Regex.IsMatch(password, @"[A-Z]", RegexOptions.ECMAScript)) //hat uppercase
+ {
+ punkte += 5;
+ hatUppercase = true;
+ }
+ if (Regex.IsMatch(password, @"[~`!@#$%\^\&\*\(\)\-_\+=\[\{\]\}\|\\;:'\""<\,>\.\?\/£]", RegexOptions.ECMAScript)) //hat sonderzeichen
+ {
+ punkte += 10;
+ hatSonderzeichen = true;
+ }
+ List lstPass = password.Trim().ToList(); //länger als 2 zeichen und 3 wiederholende zeichen -2
+ if (lstPass.Count >= 3)
+ {
+ for (int i = 2; i < lstPass.Count; i++)
+ {
+ char charCurrent = lstPass[i];
+ if (charCurrent == lstPass[i - 1] && charCurrent == lstPass[i - 2] && punkte >= 4)
+ {
+ punkte -= 3;
+ }
+ }
+ }
+ }
+ }
+ CalculateEntropy(password.Trim());
+ Score = (punkte + cardinality) / 2;
+ }
+
+ public void CalculateEntropy(string password)
+ {
+ var cardinality = 0;
+
+ if (password.Length >= 6 && hatLowercase && hatNummer && hatSonderzeichen && hatUppercase)
+ {
+ // Password contains lowercase letters.
+ if (password.Any(c => char.IsLower(c)))
+ {
+ cardinality = 26;
+ }
+
+ // Password contains uppercase letters.
+ if (password.Any(c => char.IsUpper(c)))
+ {
+ cardinality += 26;
+ }
+
+ // Password contains numbers.
+ if (password.Any(c => char.IsDigit(c)))
+ {
+ cardinality += 10;
+ }
+
+ // Password contains symbols.
+ if (password.IndexOfAny("\\|¬¦`!\"£$%^&*()_+-=[]{};:'@#~<>,./? ".ToCharArray()) >= 0)
+ {
+ cardinality += 36;
+ }
+
+ this.cardinality = Math.Log(cardinality, 2) * password.Length;
+ }
+ }
+ }
+}
diff --git a/Mk0.Tools.Password/Mk0.Tools.Password/Properties/AssemblyInfo.cs b/Mk0.Tools.Password/Mk0.Tools.Password/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..8aa3779
--- /dev/null
+++ b/Mk0.Tools.Password/Mk0.Tools.Password/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// Allgemeine Informationen über eine Assembly werden über die folgenden
+// Attribute gesteuert. Ändern Sie diese Attributwerte, um die Informationen zu ändern,
+// die einer Assembly zugeordnet sind.
+[assembly: AssemblyTitle("Mk0.Tools.Password")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Mk0.Tools.Password")]
+[assembly: AssemblyCopyright("Copyright © 2019 mk0.at")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Durch Festlegen von ComVisible auf FALSE werden die Typen in dieser Assembly
+// für COM-Komponenten unsichtbar. Wenn Sie auf einen Typ in dieser Assembly von
+// COM aus zugreifen müssen, sollten Sie das ComVisible-Attribut für diesen Typ auf "True" festlegen.
+[assembly: ComVisible(false)]
+
+// Die folgende GUID bestimmt die ID der Typbibliothek, wenn dieses Projekt für COM verfügbar gemacht wird
+[assembly: Guid("b6f59b71-bd27-4d69-9d40-dd5820a0a645")]
+
+// Versionsinformationen für eine Assembly bestehen aus den folgenden vier Werten:
+//
+// Hauptversion
+// Nebenversion
+// Buildnummer
+// Revision
+//
+// Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
+// indem Sie "*" wie unten gezeigt eingeben:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]