C# Security

Open-source C# projects categorized as Security

Top 23 C# Security Projects

  • Quasar

    Remote Administration Tool for Windows (by quasar)

  • privatezilla

    👀👮🐢🔥Performs a privacy & security check of Windows 10

    Project mention: O&OSU10 FOSS Alternative for Windows 11? | /r/PrivacyGuides | 2023-05-19
  • Onboard AI

    Learn any GitHub repo in 59 seconds. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at www.getonboard.dev.

  • pingcastle

    PingCastle - Get Active Directory Security at 80% in 20% of the time

    Project mention: Open source vulnerability scanner | /r/cybersecurity | 2023-12-05

    I use OpenVas (on Kali) and PingCastle (on Windows).

  • BouncyCastle

    BouncyCastle.NET Cryptography Library (Mirror)

  • itext7-dotnet

    iText for .NET is the .NET version of the iText library, formerly known as iTextSharp, which it replaces. iText represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enha

    Project mention: FastPDF Service API (C# .NET) VS itext7-dotnet - a user suggested alternative | libhunt.com/r/fastpdf-csharp | 2023-12-07
  • ipban

    Since 2011, IPBan is the worlds most trusted, free security software to block hackers and botnets. With both Windows and Linux support, IPBan has your dedicated or cloud server protected. Upgrade to IPBan Pro today and get a discount. Learn more at ↓

    Project mention: Well I'm ready to throw in the towel - public IP to 3389 | /r/sysadmin | 2023-12-07
  • jose-jwt

    Ultimate Javascript Object Signing and Encryption (JOSE), JSON Web Token (JWT) and Json Web Keys (JWK) Implementation for .NET and .NET Core

    Project mention: Creating a JWT RS256 with private key | /r/PowerShell | 2023-04-11

    Use the jose-jwt library and thank me later

  • InfluxDB

    Collect and Analyze Billions of Data Points in Real Time. Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.

  • security-code-scan

    Vulnerability Patterns Detector for C# and VB.NET

  • DevSkim

    DevSkim is a set of IDE plugins, language analyzers, and rules that provide security "linting" capabilities.

  • bcrypt.net

    BCrypt.Net - Bringing updates to the original bcrypt package

    Project mention: JWT Authentication in ASP.NET | dev.to | 2023-06-03


  • Samples

    Steeltoe samples and reference application collection (by SteeltoeOSS)

  • SecurityDriven.Inferno

    :white_check_mark: .NET crypto done right. Professionally audited.

  • nUpdate

    A comfortable update solution for .NET-applications.

  • Phishious

    An open-source Secure Email Gateway (SEG) evaluation toolkit designed for red-teamers.

  • SimpleIdServer

    OpenID, OAuth 2.0, SCIM2.0, UMA2.0, FAPI, CIBA & OPENBANKING Framework for ASP.NET Core

  • ad-password-protection

    Active Directory password filter featuring breached password checking and custom complexity rules

    Project mention: AD password policy enforcers that can do compromised checks when user sets password? | /r/sysadmin | 2023-04-05
  • DotNetCore

    .NET 8 Nuget Packages.

    Project mention: Architecture project using .NET 7, Angular 15, Clean Architecture, Clean Code, SOLID Principles. | /r/csharp | 2023-03-24

    Source: https://github.com/rafaelfgx/DotNetCore

  • TwoFactorAuth.Net

    .Net library for Two Factor Authentication (TFA / 2FA)

  • KeePassWinHello

    Quick unlock KeePass 2 database using biometrics with Windows Hello

  • Pkcs11Interop

    Managed .NET wrapper for unmanaged PKCS#11 libraries

  • cervantes

    Cervantes is an opensource collaborative platform for pentesters or red teams who want to save time to manage their projects, clients, vulnerabilities and reports in one place. (by CervantesSec)

  • Rubeus-GUI

    GUI alternative to the Rubeus command line tool, for all your Kerberos exploit requirements

  • evillimiter-windows

    Tool that limits bandwidth of devices on the same network without access.

  • SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-12-07.

C# Security related posts


What are some of the best open-source Security projects in C#? This list will help you:

Project Stars
1 Quasar 7,508
2 privatezilla 3,290
3 pingcastle 1,917
4 BouncyCastle 1,407
5 itext7-dotnet 1,400
6 ipban 1,372
7 jose-jwt 887
8 security-code-scan 886
9 DevSkim 842
10 bcrypt.net 748
11 Samples 641
12 SecurityDriven.Inferno 563
13 nUpdate 437
14 Phishious 430
15 SimpleIdServer 427
16 ad-password-protection 417
17 DotNetCore 408
18 TwoFactorAuth.Net 305
19 KeePassWinHello 272
20 Pkcs11Interop 241
21 cervantes 228
22 Rubeus-GUI 162
23 evillimiter-windows 151
SaaSHub - Software Alternatives and Reviews
SaaSHub helps you find the best software and product alternatives