C# Security

Open-source C# projects categorized as Security Edit details

Top 23 C# Security Projects

  • IdentityServer4

    OpenID Connect and OAuth 2.0 Framework for ASP.NET Core

    Project mention: How does identity serve its ui layer to the end application | reddit.com/r/dotnet | 2022-08-10
  • Quasar

    Remote Administration Tool for Windows (by quasar)

    Project mention: I said this as a joke and man went twitter mode | reddit.com/r/robloxhackers | 2022-01-28

    Where I read it: https://github.com/quasar/Quasar

  • Scout APM

    Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.

  • privatezilla

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

    Project mention: What privacy enhancment script/app for Windows 10 is recommended nowadays? | reddit.com/r/PrivacyGuides | 2022-07-20

    I would only feel comfortable suggesting Privatezilla because it is open source. With OO ShutUp10++ you are installing software that tampers with your system and there is no way to understand how it works or if it's doing anything malicious. Privatezilla is also still maintained, as a matter of fact, they just released a big update code named Pollux that integrates LoveWindowsAgain which is a Windows 11 utility to disable various stupid things in Windows 11. I would also recommend what u/domsch1988 suggested, and use winget to uninstall anything else you don't 100% need.

  • pingcastle

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

    Project mention: Best solutions to check rights, access and general security | reddit.com/r/sysadmin | 2022-08-02
  • itext7-dotnet

    iText 7 for .NET is the .NET version of the iText 7 library, formerly known as iTextSharp, which it replaces. iText 7 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 enhance PDF documents, iText 7 can be a boon to nearly every workflow.

    Project mention: ok which one of you made this???? | reddit.com/r/ProgrammerHumor | 2022-02-08

    VBA, no, this is 2022. We edit our PDFs with PowerShell. itext7

  • ipban

    For over 11 years, IPBan is the worlds most trusted 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: Automatically ban at signs of bruteforce/botnet attacks w/ known attackers lists | reddit.com/r/cybersecurity | 2022-01-08
  • jose-jwt

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

  • SonarLint

    Clean code begins in your IDE with SonarLint. Up your coding game and discover issues early. SonarLint is a free plugin that helps you find & fix bugs and security issues from the moment you start writing code. Install from your favorite IDE marketplace today.

  • security-code-scan

    Vulnerability Patterns Detector for C# and VB.NET

  • Samples

    Steeltoe samples and reference application collection (by SteeltoeOSS)

    Project mention: Integration Events: Implementando comunicación entre servicios con MassTransit y ASP.NET | dev.to | 2022-02-17
  • bcrypt.net

    BCrypt.Net - Bringing updates to the original bcrypt package

    Project mention: bcrypt.net: password hashes suddenly stopped matching | reddit.com/r/dotnet | 2022-05-05
  • SecurityDriven.Inferno

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

  • nUpdate

    A comfortable update solution for .NET-applications.

    Project mention: What tool do you use to create an installer for your desktop applications? | reddit.com/r/dotnet | 2021-10-19
  • Phishious

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

    Project mention: GitHub - Rices/Phishious: An open-source Secure Email Gateway (SEG) evaluation toolkit designed for red-teamers. | reddit.com/r/bag_o_news | 2021-10-29
  • ad-password-protection

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

    Project mention: Password expires notification | reddit.com/r/activedirectory | 2022-08-10

    Luckily there are a few open source options you can use, eg: https://github.com/lithnet/ad-password-protection

  • TwoFactorAuth.Net

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

  • KeePassWinHello

    Quick unlock KeePass 2 database using biometrics with Windows Hello

    Project mention: Anyway to have 1 database cross platform, and have Windows hello enabled? | reddit.com/r/strongbox | 2021-08-21

    KeePass + KeePassWinHello?

  • Pkcs11Interop

    Managed .NET wrapper for unmanaged PKCS#11 libraries

  • Rubeus-GUI

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

    Project mention: Rubeus-GUI: GUI alternative to the Rubeus command line tool, for all your Kerberos exploit requirements | reddit.com/r/purpleteamsec | 2021-12-05
  • evillimiter-windows

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

    Project mention: Error while using Evillimmiter | reddit.com/r/Hacking_Tutorials | 2022-05-18

    This issue isn’t fixed yet in some cases -> https://github.com/bitbrute/evillimiter/issues/123 But i guess they are working on it. Here are some similar programs I would recommend NetStalker tuxcut there’s also a windows version for Evillimiter Evillimiter-windows. Hope this helps if you have any other questions feel free to dm.

  • 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)

    Project mention: Cervantes: Plataforma colaborativa de código abierto para pentesters o equipos rojos 📄 | reddit.com/r/u_esgeeks | 2022-05-25
  • SecurityDriven.Core

    Modern, fast, safe, cryptographically strong .NET replacement for Random and RandomNumberGenerator.

  • libsodium-core

    libsodium for .NET - A secure cryptographic library

  • crypthash-net

    CryptHash.NET is a .NET multi-target library to encrypt/decrypt/hash/encode/decode strings and files, with an optional .NET Core multiplatform console utility.

    Project mention: What package(s) for offline password hashing and KDF? (Scrypt, Argon2, etc?) | reddit.com/r/csharp | 2022-04-06


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 2022-08-10.

C# Security related posts


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

Project Stars
1 IdentityServer4 8,783
2 Quasar 5,738
3 privatezilla 2,562
4 pingcastle 1,383
5 itext7-dotnet 1,046
6 ipban 974
7 jose-jwt 783
8 security-code-scan 776
9 Samples 621
10 bcrypt.net 610
11 SecurityDriven.Inferno 534
12 nUpdate 422
13 Phishious 382
14 ad-password-protection 326
15 TwoFactorAuth.Net 254
16 KeePassWinHello 227
17 Pkcs11Interop 200
18 Rubeus-GUI 144
19 evillimiter-windows 108
20 cervantes 108
21 SecurityDriven.Core 107
22 libsodium-core 92
23 crypthash-net 34
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