Philiprehberger.PasswordStrength
0.1.1
There is a newer version of this package available.
See the version list below for details.
See the version list below for details.
dotnet add package Philiprehberger.PasswordStrength --version 0.1.1
NuGet\Install-Package Philiprehberger.PasswordStrength -Version 0.1.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Philiprehberger.PasswordStrength" Version="0.1.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Philiprehberger.PasswordStrength" Version="0.1.1" />
<PackageReference Include="Philiprehberger.PasswordStrength" />
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Philiprehberger.PasswordStrength --version 0.1.1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Philiprehberger.PasswordStrength, 0.1.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Philiprehberger.PasswordStrength@0.1.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Philiprehberger.PasswordStrength&version=0.1.1
#tool nuget:?package=Philiprehberger.PasswordStrength&version=0.1.1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
Philiprehberger.PasswordStrength
Password strength evaluation with entropy calculation, common password detection, and pattern analysis.
Installation
dotnet add package Philiprehberger.PasswordStrength
Usage
Evaluate Password Strength
using Philiprehberger.PasswordStrength;
var score = Password.Evaluate("MyP@ssw0rd!");
Console.WriteLine(score.Score); // 3 (0=very weak, 4=very strong)
Console.WriteLine(score.Entropy); // 52.4 (bits)
Console.WriteLine(score.CrackTime); // "centuries"
foreach (var tip in score.Feedback)
Console.WriteLine(tip);
Common Password Detection and Policy Validation
using Philiprehberger.PasswordStrength;
bool common = Password.IsCommon("password123"); // true
bool unique = Password.IsCommon("xK9#mP2!vL"); // false
var policy = new PasswordPolicy(MinLength: 12, MinScore: 3, RejectCommon: true);
bool valid = Password.MeetsPolicy("MyStr0ng!Pass", policy); // true
bool weak = Password.MeetsPolicy("password", policy); // false
Entropy Calculation and Pattern Detection
using Philiprehberger.PasswordStrength;
double entropy = EntropyCalculator.Calculate("hello");
Console.WriteLine(entropy); // 23.5 (bits)
string[] patterns = EntropyCalculator.DetectPatterns("qwerty123");
foreach (var pattern in patterns)
Console.WriteLine(pattern); // "keyboard walk", "sequential characters"
API
Password
| Member | Description |
|---|---|
Evaluate(string password) |
Evaluate strength and return a PasswordScore |
IsCommon(string password) |
Check if the password is in the top 1000 common passwords |
MeetsPolicy(string password, PasswordPolicy policy) |
Check if the password satisfies the given policy |
PasswordScore
| Member | Description |
|---|---|
Score |
Strength score from 0 (very weak) to 4 (very strong) |
Entropy |
Shannon entropy in bits |
CrackTime |
Human-readable crack time estimate |
Feedback |
Array of improvement suggestions |
EntropyCalculator
| Member | Description |
|---|---|
Calculate(string password) |
Calculate Shannon entropy in bits |
DetectPatterns(string password) |
Detect weakness patterns (sequential, repeated, keyboard walks, substitutions) |
PasswordPolicy
| Member | Description |
|---|---|
MinLength |
Minimum required length (default: 8) |
MinScore |
Minimum required score 0-4 (default: 2) |
RejectCommon |
Reject passwords in the common list (default: true) |
Development
dotnet build src/Philiprehberger.PasswordStrength.csproj --configuration Release
License
MIT
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
-
net8.0
- No dependencies.
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.