C Encryption Software

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

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  • 1
    VeraCrypt

    VeraCrypt

    Open source disk encryption with strong security for the Paranoid

    VeraCrypt is a free disk encryption software brought to you by IDRIX (https://www.idrix.fr) and based on TrueCrypt 7.1a. It adds enhanced security to the algorithms used for system and partitions encryption making it immune to new developments in brute-force attacks. It also solves many vulnerabilities and security issues found in TrueCrypt. This enhanced security adds some delay ONLY to the opening of encrypted partitions without any performance impact to the application use phase. This is acceptable to the legitimate owner but it makes it much harder for an attacker to gain access to the encrypted data. All released files are PGP signed with key ID=0x680D16DE, available on key servers and downloadable at https://www.idrix.fr/VeraCrypt/VeraCrypt_PGP_public_key.asc VeraCrypt can mount TrueCrypt volumes. It also can convert them to VeraCrypt format. Documentation: https://www.veracrypt.fr/en/Documentation.html FAQ : https://www.veracrypt.fr/en/FAQ.html
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    Downloads: 2,157 This Week
    Last Update:
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  • 2
    Advanced Onion Router
    Advanced Onion Router is a portable client for the OR network and is intended to be an improved alternative for Tor+Vidalia+Privoxy bundle for Windows users. Some of the improvements include UNICODE paths, support for HTTP and HTTPS proxy protocols on the same Socks4/Socks5 port with HTTP header filtering that generates fake identity-dependent headers every time the identity is changed (proxy chains are also supported), support for NTLM proxies, a User Interface that makes Tor's options and actions more accessible, local banlist for forbidden addresses, private identity isolation, a point-and-click process interceptor that can redirect connections from programs that don't support proxies, also giving them fake information about the local system and support for .onion addresses. Also, it can estimate AS paths for all circuits and prevent AS path intersections, it can restrict circuits to be built using only nodes from different countries, can change circuit lengths and more.
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    Downloads: 195 This Week
    Last Update:
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  • 3
    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: 12 This Week
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  • 4
    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:
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  • 5
    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: 5 This Week
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  • 6
    AWS Encryption SDK for C

    AWS Encryption SDK for C

    AWS Encryption SDK for C

    The AWS Encryption SDK for C is a client-side encryption library designed to make it easy for everyone to encrypt and decrypt data using industry standards and best practices. It uses a data format compatible with the AWS Encryption SDKs in other languages. For more information on the AWS Encryption SDKs in all languages, see the Developer Guide. We will demonstrate some simple build recipes for Linux, Mac, and Windows operating systems. These recipes assume a newly installed system with default installs of dependency packages. The Windows instructions install everything in your current directory (where you run the build process). The AWS Encryption SDK for C can be used with AWS KMS, but it is not required. For best results when doing a build with AWS KMS integration, do not install aws-c-common directly. Build and install the AWS SDK for C++, which will build and install aws-c-common for you (see the C++ SDK dependencies here).
    Downloads: 1 This Week
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  • 7

    ProxyCrypt

    Encrypted volumes through command line

    ProxyCrypt is a command line tool that creates encrypted volumes within a file or a hard drive. Encryption and decryption are made on the fly, allowing you to use encrypted volumes like normal ones. Designed for paranoids and advanced users, it is also fast, very lightweight, open source and easy to recompile. See the features below. It works as a "proxy" for the AIM driver or the ImDisk driver. AIM driver is included in the full package. See the documentation for more informations and an example of use: https://sourceforge.net/p/proxycrypt/doc/ Requirements: - Windows 7 or later - Arsenal Image Mounter or ImDisk Virtual Disk Driver - Administrative privileges - 64-bit CPU with SSE3 instructions - About 1 GB of RAM temporarily required for password checking with default settings Hashes of all versions: https://sourceforge.net/p/proxycrypt/doc/Hash
    Downloads: 24 This Week
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  • 8

    XOR Encryptor/Decryptor

    Encrypts and decrypts files using XOR operation.

    Encrypts and decrypts files using XOR operation.
    Downloads: 12 This Week
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  • 9
    A ultrafast lightweight (no GUI) encryption/decryption software using the CryptoAPI on Windows platform, to secure just about anything - regular files and directories, consoles, communication resources(COM ports), Disk devices, pipes and sockets anythin
    Downloads: 14 This Week
    Last Update:
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  • 10
    Small stream encryption program for Unix
    Downloads: 8 This Week
    Last Update:
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  • 11
    Ncrypt is intended to give you security in an insecure environment. If you are wanting to encrypt files, wishing to hide your activites from prying eyes, and want to "cover your tracks", Ncrypt is for you.
    Downloads: 7 This Week
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  • 12
    XorCryptWin

    XorCryptWin

    XOR Encryptor for Windows

    XOR encryption software for Windows. Generates random key files which it then uses to mimic the One-Time Pad encryption technique. Distributed together with RandFileGen, a program that can generate random files of any size and is extensible by plugins.
    Downloads: 2 This Week
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  • 13
    sectar: a program that creates encrypted tape archives(tar files), using the AES algorithm Rijndael. Encryption exported under exemption TSU 740.13. Was star, now sectar.
    Downloads: 5 This Week
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  • 14
    IMPORTANT -- This is an old project that is no longer supported and should not be relied upon for serious applications. If your looking for encryption software, I suggest OpenSSL or GnuPG which are better equipped.
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    Downloads: 4 This Week
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  • 15
    Use of Michael Rabin's Information Dispersal Algorithm to provide secure, dispersed storage in a networked environment. For full download, please get both Math-FastGF2 and Crypt-IDA releases under the files link. See project wiki for more information.
    Downloads: 4 This Week
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  • 16

    Largest Generic Hash and HMAC Program

    57 Hash Functions In One Program, plus each with HMAC or KMAC

    FEHASHMAC is the largest collection of publicly known hash algorithms integrated into a command-line utility. FEHASHMAC contains a set of known test vectors and results for each algorithm such that the correct implementation for each hardware platform and compiler version can directly be verified. Currently 57 hash algorithms like sha1 sha224 sha256 sha384 sha512 and variants, sha3 and shake, all SHA3 finalists and blake3, md2 md4 md5 md6, rmd128 rmd160 rmd256 rmd320, whirl gost lash160 lash256 lash384 lash512 tiger2 and RFC 2104 HMAC and KMAC support are included, plus SHA3 extensions kmac128, kmac256, kmacxof128, kmacxof256 for message.
    Downloads: 2 This Week
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  • 17
    PHP Screw is a PHP script encryption tool. When you are developing a commercial package using PHP, the script can be distributed as encrypted up until just before execution, preserving your intellectual property.
    Downloads: 2 This Week
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  • 18
    TinyCrypt is a simple secure program for encrypting files. The core encryption code is only 76 lines of C code, based on the well known ARC4-D(768) algorithm.
    Downloads: 2 This Week
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  • 19
    puff

    puff

    Fast and Strong Data Encryption Algorithm

    svn checkout http://umcipher.googlecode.com/svn/trunk/ umcipher-read-only
    Downloads: 2 This Week
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  • 20
    NoFault is a library written in C used to encrypt or decrypt data with XOR encryption. KNoFault, NoFault32 and CLNoFault are direct applications of the library, which is easy to use in your own programs.
    Downloads: 3 This Week
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  • 21
    A command-line to help encipher and decipher your password based on a simple algorithm. Java version provides GUI.
    Downloads: 3 This Week
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  • 22

    DavUtils

    Powerful webdav client and sync tools with client-side AES encryption

    DavUtils is a collection of easy to use WebDAV client tools. The built-in client-side encryption allows you to encrypt and decrypt files on the fly with AES. Currently two command line tools are available: dav is a multipurpose WebDAV client that can be used like the standard unix tools ls, mkdir and rm. The other tool is dav-sync that can synchronize local files with a WebDAV server. It is very flexible and configurable and has advanced data safety features to prevent data loss. The integrated client-side AES encryption makes it secure to use public clouds.
    Downloads: 2 This Week
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  • 23
    MOTE CSPRNG & Stream Cipher

    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 5 lines of code: Ten arithmetic and bitwise operations in all. It's called MOTE because a PRNG can't be made much smaller (or faster) without introducing bias or severely reducing avalanche. MOTE alternates its shift and rotation constants unpredictably, and has passed the most stringent industry-standard tests for randomness and security, including NIST & DIEHARD.
    Downloads: 2 This Week
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  • 24
    The Mav.Crypt tool will be upgraded to many different encryption methods. At the Moment, the only method is ROT13, but we are developing some other technics and a new Algorithm. More Infos shortly at the Project Web Page.
    Downloads: 2 This Week
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  • 25
    Application based on asymmetric cryptography (ECC) allows encrypt and decrypt files and generates digital signatures. Currently implemented algorithms include ECDSA and ECIES.
    Downloads: 2 This Week
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