Search Results for "c program"
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Showing 48 open source projects for "c program"
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SoftEther VPN
Cross-platform multi-protocol VPN software
An open-source free cross-platform multi-protocol VPN program, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN sessions) from JavaScript, TypeScript, C# or other languages. -
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frida
Dynamic instrumentation toolkit for developers
...Hook any function, spy on crypto APIs or trace private application code, no source code needed. Edit, hit save, and instantly see the results. All without compilation steps or program restarts. Works on Windows, macOS, GNU/Linux, iOS, Android, and QNX. Install the Node.js bindings from npm, grab a Python package from PyPI, or use Frida through its Swift bindings, .NET bindings, Qt/Qml bindings, or C API. Frida is and will always be free software (free as in freedom). We want to empower the next generation of developer tools, and help other free software developers achieve interoperability through reverse engineering. ... -
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Google Authenticator PAM Library
Example PAM module demonstrating two-factor authentication
google-authenticator-libpam is a Pluggable Authentication Module (PAM) that adds one-time passcodes to Unix and Linux logins using open OATH standards. It plugs into PAM stacks for services like SSH, su, or desktop display managers, prompting users for a time-based (TOTP) or counter-based (HOTP) code after their password. A lightweight enrollment program bootstraps each account by generating a secret, printing a QR code, and writing per-user configuration with safe file permissions. Because... -
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Safe Exam Browser is a webbrowser-environment to carry out online-exams safely. The software changes any computer into a secure workstation. It regulates the access to any utilities and prevents students from using unauthorised resources.
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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,... -
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LibNetBlock - A Network Blocking Library
A library for blocking access to network on-the-fly
LibNetBlock is a library that on-the-fly (by preloading) prevents a program under its control to use the network, to help to keep the user's privacy, prevent data leakage and virus spreading. You can think of LibNetBlock as a simple layer-7 (L7) firewall that simply blocks the network access for the program it controls. There is NO NEED to rebuild your software, because LibNetBlock is a pre-loadable library, meaning you just need to RUN the software with LibNetBlock loaded. LibNetBlock is... -
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LibSecRm - Secure Removal Library
A library for secure deleting data on-the-fly
LibSecRm (LIBrary for SECure ReMoval) is a set of replacements for these standard C functions which cause data removing from files. The data is first securely wiped on-the-fly, to protect the user's privacy, then the original functions are called. There is NO NEED to rebuild your software, because LibSecRm is a pre-loadable library, meaning you just need to RUN the software with LibSecRm loaded. LibSecRm is also a development library. The following wiping methods are supported:... -
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JDS: Data Security
JDS is a powerful data protection program
JDS is a powerful tool for data protection. Documents are encrypted using a special algorithm. The data encryption algorithm is constantly updated to improve security. The program also provides other functions. Such as sending a file to a vault with password access, fast text encryption in 3 types, and much more. The program is easy to use and does not require special knowledge. The standard version has 2 languages (Russian and English) and 9 themes. You can download the language... -
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APG for Windows
Automated Password Generator (APG) for Windows 32-bits
Automated Password Generator (APG) is a Linux program that helps webmasters and server administrators with creating random, secure passwords, through the SSH of server's. A wide range of Linux distros use APG in their repository. Copyright (c) Adel I. Mirzazhanov -
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RSA Encryption Tool
RSA algorithm based encryption tool.
A simple program written in C# utilizing .NET 4.6 to demonstrate RSA encryption in action. User can select a text file or input any text to encrypt. -
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CheckMate
Utility to generate and verify checksums/hashes
CheckMate is a program designed to generate all kinds of checksums and/or hashes. Checksums can simply be displayed or saved and used to verify the integrity of a file later on. -
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OMEN
OMEN: Ordered Markov ENumerator - Password Guesser
...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. -
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[C#] Secure Shredder Console
A console file shredder that supports many algorithms.
...Since nowadays, we use computers to store data (including confidential ones), we want to totally delete a file with no traces for any file recovery solution. The program supports Zero Data 1 Pass, British HMG IS5-Baseline 1 Pass, Russian GOST P50739-95 2 Passes, British HMG IS5-Enhanced 3 Passes, US DoD 5220.22-M / Canadian RCMP DSX 3 Passes, German VSITR 7 Passes, Bruce Schneier's 7 Passes, Canadian RCMP TSSIT OPS-II 7 Passes, and Peter Gutmann 35 Passes. The program is written in C# .NET. The source code is also available for download and you may contribute to the development here. ... -
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The OVAL Interpreter is a freely available reference implementation that demonstrates the evaluation of OVAL Definitions. Based on a set of OVAL Definitions the interpreter collects system information, evaluates it, and generates a detailed OVAL Results file. Developed to demonstrate the usability of OVAL Definitions and to ensure correct syntax and adherence to the OVAL Schemas by definition writers, it is not a fully functional scanning tool nor an enterprise scanning tool. It is a...
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sha3sum and then some
sha3sum - A demonstration of the Keccak permutation.
Hash mode interface to the Keccak code package. This program illustrates the use of the Keccak permutation. Usage is much more than a hash function. The NIST compatible settings are subject to change when they publish FIPS PUB 180-5. I wrote this program when evaluating the permutation and developing tree hashing for the Intel(R) MIC architecture. -
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Fleeting Password Manager
Fleeting Password Manager generates and manages passwords.
Fleeting Password Manager is a simple program that generates highly secure pseudo-random passwords from the given master password, URL/ID (e.g. facebook, www.facebook.com, google, my_server..) and user name. The user needs to remember only her master password to recover other passwords. Passwords are always regenerated on-the-fly from the given login data when needed and are never saved. In other words, Fleeting Password Manager combines the password creation and management. The length of... -
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MOTE CSPRNG & Stream Cipher
A family of small-state CSPRNGs and Stream Ciphers
MOTE is a fast, small-state, cryptographically secure pseudo-random number generator (CSPRNG) and stream cipher. MOTE exhibits uniform distribution, mixes extremely rapidly, has no detected bias, and comes in three variants: MOTE8, with an internal state array of 8+4 32-bit words; MOTE16, with an internal state of 16+4 words; and MOTE32 with a 32+4-word state. The former permit seeding with a key of up to 256 or 512 bits, the latter with a 1024-bit key. Reduced to essentials, MOTE is only... -
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BEDBUG CSPRNG & Stream Cipher
A family of FLEA-inspired CSPRNGs and Stream Ciphers
BEDBUG is a small, fast, cryptographically secure pseudo-random number generator (CSPRNG) and stream cipher. It exhibits uniform distribution, mixes rapidly (with worst-case avalanche better than 16-bits), has no detected bias, and comes in three variants: BEDBUG128, with an internal state array of 128+3 32-bit words; BEDBUG256, with an internal state of 256+3 words; and BEDBUG512 with a 512+3-word state. The former permit seeding with a key of up to 4096 or 8192 bits, the latter with a... -
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gxLibrary : C++ (CUDA+AMP+CPU)
C++ library for easy simulations on any CUDA/AMP/CPU or remote PC
Helps to program ( in C++) simulations or long-running calculations with many iterations. Easily write C++ code that is same as single-threaded ( or shorter and simpler) , and gxLibrary will compile and run that code as massive multi-threaded on any available GPU (CUDA/AMP) or CPU, either on local or remote PC. Write code functions once, just like they would be written for regular single-threaded cases - no need to write separate code for CUDA or AMP or CPU, or to modify code for parallel execution. ... -
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ISC - The ISAAC Stream Cipher
ISC lets you encrypt & decrypt text and files of any type up to 4GB
ISAAC is a cryptographically secure pseudo-random number generator (CSPRNG) and stream cipher. It was developed by Bob Jenkins from 1993-1996 and placed in the Public Domain. ISAAC is fast - especially when optimised - and portable to most architectures in nearly all programming and scripting languages. After more than 20 years of existence ISAAC has not been broken, and the little program you have here allows you to use it to encrypt and decrypt text of arbitrary length, files of any... -
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DACS - Distributed Access Control System
Authentication, Access Control, and Single Sign-On
DACS,a light-weight single sign-on and role-based security system for Apache or server-based software, provides comprehensive authentication capabilities, and powerful, transparent rule-based authorization checking for any web service or CGI program. The latest release is DACS 1.5.1 (26-Oct-2025) It is not available here! Get it at https://dacs.dss.ca/download.html -
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Bigram Table Generator
A program to generate random reciprocal bigram tables
A command-line program to encrypt/decrypt a message using a random reciprocal bigram table and write a bigram table to a text file. Executing the program without any command-line arguments starts bigram in message encryption/decryption mode. The program prompts for a password or passphrase and a message to encrypt/ decrypt. After the message is entered the ciphertext is displayed. Executing the program with command-line arguments causes bigram to generate a random bigram table to... -
23
inKey
inKey - small & strong encryption utility (> 800 000 bit).
inKey - small encryption utility with big encryption block (> 800 000 bit). This program can protect very sensitive data, such e-mail, which has size up to 100 kilobytes, but processing speed might be too small with the bigger size of source data. ProcessingTime(data) = O(data ^ 2); USE IT ONLY TO PROTECT SMALL FILES (~ 100 Kb or a bit bigger). You can use "PaperBack" to print your 100 Kb encrypted *.iK file to A4 paper and get strong encrypted digital... -
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Steganography v2.0
Hide archives inside any image type
Hides any archive file inside any image, when opened it functions exactly as an image and can still be printed as usual, but once opened with WinRAR or any other similar program the contents of the archive can be seen. ************************************************************************************************************************** Now has the ability to mask the size of the image so that it stays the same even when TB's of data are hidden within... -
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PasseGen
Password generation, encryption, storage, and easy-access
{Currently requires Windows Vista or above) PasseGen generates highly customizable, complex passwords that are impossible to guess and difficult to break. Your sensitive information is encrypted and further protected at your discretion (program PIN protection). Possibly the niftiest feature is the ability to access stored passwords from the main screen via a context menu that pastes this information to your clipboard. (If PIN-protected, this screen is accessed AFTER the log-in...
