Open Source C Security Software - Page 3

C Security Software

View 5818 business solutions

Browse free open source C Security Software and projects below. Use the toggles on the left to filter open source C Security Software by OS, license, language, programming language, and project status.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • 1
    AdAway

    AdAway

    Ad-blocking for your Android

    Tired of seeing ads pop up on your Android device? You can take them all away with AdAway! AdAway is an open source ad blocker for Android that uses the hosts file and local vpn. It effectively keeps pesky ads at bay so you can continue using your Android device uninterrupted by constant ads. AdAway gives you the option to add custom sources of host files. It also lets you add custom rules for your whitelist, blocklist and rules for redirects, so your ad blocking is not just generic, but tailored specifically how you want it. AdAway is currently being used by dozens of Android users worldwide.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 2
    Msieve is a C library implementing a suite of algorithms to factor large integers. It contains an implementation of the SIQS and GNFS algorithms; the latter has helped complete some of the largest public factorizations known
    Leader badge
    Downloads: 67 This Week
    Last Update:
    See Project
  • 3
    OpenSC

    OpenSC

    OpenSC - tools and libraries for smart cards

    The OpenSC project allows the use of PKCS #15 compatible SmartCards and other cryptographic tokens (e.g. the Aladdin eToken) in UNIX compatible operating systems. OpenSC can use PC/SC Lite or CT-API as its reader backend. https://github.com/OpenSC/OpenSC/wiki/OpenSC-Services
    Leader badge
    Downloads: 137 This Week
    Last Update:
    See Project
  • 4
    <<Hack|Track GNU/Linux

    <<Hack|Track GNU/Linux

    Distro Penetrasing Live System Burn to USB Flash Disk & Run.

    <<Hack|Track GNU/Linux is an open source operating system developed by the HTGL Project from Indonesia which provides penetration testing.
    Leader badge
    Downloads: 127 This Week
    Last Update:
    See Project
  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
    Try it Free
  • 5

    GnuPG for OS X / macOS

    GnuPG 2.2, 2.3 and 2.4 distributions for OS X / macOS

    This project was retired on 2025-03-30, see the documentation section.
    Leader badge
    Downloads: 214 This Week
    Last Update:
    See Project
  • 6
    FreeOTFE

    FreeOTFE

    A free "on-the-fly" transparent disk encryption program for PC & PDAs.

    An upstream source site housing the original files for this mirror is no longer available. With this software, you can create one or more "virtual disks" on your PC/PDA. These disks operate exactly like a normal disk, with the exception that anything written to one of them is transparently, and securely, encrypted before being stored on your computer's hard drive.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 7
    The Sleuth Kit is a C++ library and collection of open source file system forensics tools that allow you to, among other things, view allocated and deleted data from NTFS, FAT, FFS, EXT2, Ext3, HFS+, and ISO9660 images.
    Downloads: 30 This Week
    Last Update:
    See Project
  • 8
    HT is a file editor/viewer/analyzer for executables. The goal is to combine the low-level functionality of a debugger and the usability of IDEs. We plan to implement all (hex-)editing features and support of the most important file formats.
    Leader badge
    Downloads: 60 This Week
    Last Update:
    See Project
  • 9
    OSS-Fuzz

    OSS-Fuzz

    OSS-Fuzz - continuous fuzzing for open source software

    OSS-Fuzz is a large-scale fuzz testing platform developed by Google to improve the security and reliability of widely used open source software. Fuzz testing is a proven method for uncovering programming errors such as buffer overflows and memory leaks, which can lead to severe security vulnerabilities. By leveraging guided in-process fuzzing, Google has already identified thousands of issues in projects like Chrome, and this initiative extends the same capabilities to the broader open source community. OSS-Fuzz integrates modern fuzzing engines with sanitizers and runs them at scale in a distributed environment, providing automated testing and continuous monitoring. The platform supports multiple programming languages including C/C++, Rust, Go, Python, Java/JVM, and JavaScript, ensuring wide coverage across critical open source projects.
    Downloads: 6 This Week
    Last Update:
    See Project
  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • 10
    UACMe

    UACMe

    Defeating Windows user account control

    Run executable from command line, akagi32 [Key] [Param] or akagi64 [Key] [Param]. First parameter is a number of methods to use, second is an optional command (executable file name including full path) to run. The second parameter can be empty - in this case, the program will execute elevated cmd.exe from the system32 folder. Since 3.5.0 version all "fixed" methods are considered obsolete and removed altogether with all supporting code/units. If you still need them. This tool shows ONLY popular UAC bypass method used by malware, and re-implement some of them in a different way improving original concepts. There are different, not yet known to the general public, methods. This tool is not intended for AV tests and not tested to work in aggressive AV environment, if you still plan to use it with installed bloatware AV soft, use it at your own risk.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 11
    xxHash

    xxHash

    Extremely fast non-cryptographic hash algorithm

    xxHash is an extremely fast non-cryptographic hash algorithm, working at RAM speed limit. It is proposed in four flavors (XXH32, XXH64, XXH3_64bits and XXH3_128bits). The latest variant, XXH3, offers improved performance across the board, especially on small data. It successfully completes the SMHasher test suite which evaluates collision, dispersion and randomness qualities of hash functions. Code is highly portable, and hashes are identical across all platforms (little / big endian). Performance on large data is only one part of the picture. Hashing is also very useful in constructions like hash tables and bloom filters. In these use cases, it's frequent to hash a lot of small data (starting at a few bytes). Algorithm's performance can be very different for such scenarios, since parts of the algorithm, such as initialization or finalization, become fixed cost. The impact of branch misprediction also becomes much more present.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 12
    SIM Card Manager

    SIM Card Manager

    Windows tool to read SIM card information and content

    SIMCardManager is Windows tool that can read a SIM card information (ICCID, IMSI, Pin states) and SIM card content : phone book (ADN), Fixed dialing (FDN) and SMS messages. It also enables you to authenticate with PIN when activated and export SIM card content to text files. You need to have a PC/SC compatible smart card reader or dongle with SIM slot. You can find other useful tools on my website http://www.idrix.fr
    Leader badge
    Downloads: 84 This Week
    Last Update:
    See Project
  • 13
    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    BlackBelt Privacy Tor/i2p+WASTE+VidVoIP

    Browse on Tor/i2p, Anon p2p Chat / FileTx, Conf / Video VoIP

    Open Source - GPLv3 inc images. *** PLEASE NOTE: There are now 2 seperate versions here. *** One is Pre Firefox 57. The other is Post Firefox 57. *** For those providing mirrors, please enable your users to realize this. Vidalia Based, Tor as a Service Solution. MicroSip: enables FREE PC to PC video calling with no account sign-up and no middleman server. WASTE: enables FREE Conference VoIP, chat, file transfer and support. *** AI Powered *** Tor/i2p: enables safer browsing. Tor/i2p Profile: Browse over Tor/i2p on Firefox (Vanilla, ESR), Waterfox (Classic, New), Palemoon , LibreWolf and legacy CyberFox. As with all versions of Tor - do not rely on this for strong anonymity. A usability enhanced Privacy Pack. Use alongside Tor Browser Bundle. An installer, for : Vista 32/64, Win7 32/64, Win8 32/64, Win10 32/64, Win11, Linux (Wine)
    Leader badge
    Downloads: 33 This Week
    Last Update:
    See Project
  • 14
    WipeFreeSpace

    WipeFreeSpace

    Secure wiping/shredding of free disk space with many methods

    WipeFreeSpace is a program to securely erase/wipe/overwrite/shred the free space on file systems WITHOUT DESTROYING EXISTING FILES, to prevent recovery of deleted sensitive data. This allows protecting the user's privacy when e.g. selling the drive or the whole computer. The following filesystems are supported: - Ext2/3/4, - NTFS, - XFS, - ReiserFSv3/4, - FAT12/16/32, - MinixFS1/2, - JFS, - HFS/HFS+, - OCFS. The following wiping methods are supported: Gutmann-like, random, Schneier, DoD. Additionally, WipeFreeSpace can finalize wiping the filesystem by writing blocks of zeros, which is friendly for sparse files, virtual systems and other places where zeroed-out space is not physically allocated. See the project homepage https://wipefreespace.sourceforge.io and the project Wiki in the menu above. To prevent clear-text data from being left on the drive in the first place, you can use LibSecRm (https://libsecrm.sourceforge.io), which wipes the data on-the-fly.
    Leader badge
    Downloads: 79 This Week
    Last Update:
    See Project
  • 15
    Logsurfer is a program for monitoring system logs in real-time, and reporting on the occurrence of events. It is capable of grouping information together to enhance loganalysis and create automatic reports.
    Leader badge
    Downloads: 77 This Week
    Last Update:
    See Project
  • 16
    Foremost is a linux tool for conducting forensic examinations. Although intended for law enforcement purposes, it may be useful to other members of the community. Foremost reads through a file, such as a dd image file or a disk partition and extracts file
    Leader badge
    Downloads: 48 This Week
    Last Update:
    See Project
  • 17
    OMEN

    OMEN

    OMEN: Ordered Markov ENumerator - Password Guesser

    OMEN is a Markov model-based password guesser written in C. It generates password candidates according to their occurrence probabilities, i.e., it outputs most likely passwords first. OMEN significantly improves guessing speed over existing proposals. If you are interested in the details on how OMEN improves on existing Markov model-based password guessing approaches, please refer to OMEN: Faster Password Guessing Using an Ordered Markov Enumerator. OMEN consists of two separate program modules: createNG and enumNG. createNG calculates n-gram probabilities based on a given list of passwords and stores them on the hard disk. Based on these probabilities enumNG enumerates new passwords in the correct order (descending). Before one can generate any passwords, the n-gram probabilities have to be estimated using createNG. To calculate the probabilities using the default settings, createNG must be called giving a path to a password list that should be trained.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 18
    shadowsocks-libev

    shadowsocks-libev

    Bug-fix-only libev port of shadowsocks

    Shadowsocks-libev is a lightweight secured SOCKS5 proxy for embedded devices and low-end boxes. Shadowsocks-libev is written in pure C and depends on libev. It's designed to be a lightweight implementation of shadowsocks protocol, in order to keep the resource usage as low as possible. Snap is the recommended way to install the latest binaries. You can build shadowsocks-libev and all its dependencies by script. The latest shadowsocks-libev has provided a redir mode. You can configure your Linux-based box or router to proxy all TCP traffic transparently, which is handy if you use an OpenWRT-powered router. Although shadowsocks-libev can handle thousands of concurrent connections nicely, we still recommend setting up your server's firewall rules to limit connections from each user. We strongly encourage you to install shadowsocks-libev from jessie-backports-sloppy.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 19
    SSHGuard

    SSHGuard

    Intelligently block brute-force attacks by aggregating system logs

    SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using several firewall backends, including iptables, ipfw, and pf.
    Leader badge
    Downloads: 125 This Week
    Last Update:
    See Project
  • 20
    Untangle
    Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com
    Downloads: 22 This Week
    Last Update:
    See Project
  • 21
    IBM's Software Trusted Platform Module (TPM) includes a TPM 1.2 implementation, low level demo libraries and command line tools, a TPM test suite, and proxies to connect from a TCP/IP socket to a hardware TPM. tpm4769 is the latest version, with TPM side support for OpenSSL 1.1. The utilities and test suite have not been ported to OpenSSL 1.1. They remain at 1.0. For the SW TPM 2.0, see https://sourceforge.net/projects/ibmswtpm2/. TPM 1.2 and TPM 2.0 are not software compatible.
    Leader badge
    Downloads: 113 This Week
    Last Update:
    See Project
  • 22
    ANDRAX Hacker's Platform

    ANDRAX Hacker's Platform

    Advanced Ethical Hacking and Penetration Testing Platform

    The most complete and Advanced Penetration Testing and Ethical Hacking Platform dedicated to Advanced Professionals. Developed to bring the power of Offensive Security in the anyone's pocket 100% OPEN SOURCE - ANDRAX is a independent solution for Security professionals who loves Linux
    Leader badge
    Downloads: 108 This Week
    Last Update:
    See Project
  • 23
    PuTTY SSH client for Symbian OS
    Downloads: 16 This Week
    Last Update:
    See Project
  • 24
    denuvo

    denuvo

    DENUVO (VMProtect 2.6x) VM research tool

    This is part of the original source code of DENUVO_Profiler, written by 386 Team in 2014-2017 to investigate the first versions of DENUVO (eq VMProtect 2-3), when there were no lifters and other modern devirtualisation tools. DENUVO_Profiler is a subsequent development of the SecuROM_Profiler utility - the simplest tool for visualising the operation of a virtual machine and effectively controlling the data it uses in the byte-code tape (p-code). DENUVO_Profiler also hunts for Electronic Arts (Origin) licence containers on the current user's machine and can extract their contents, with including the GameToken. # See also: 80_PA SecuROM keygen
    Leader badge
    Downloads: 98 This Week
    Last Update:
    See Project
  • 25
    qingy is a replacement of getty. Written in C, it uses DirectFB to provide a fast, nice GUI without the overhead of the X Window System. It allows the user to log in and start the session of his choice (text console, gnome, kde, wmaker, ...).
    Leader badge
    Downloads: 51 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB