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

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    BoldTrail Real Estate CRM

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  • 1
    RHash
    RHash (Recursive Hasher) is a console utility for computing and verifying hash sums of files. It supports CRC32, CRC32C, MD4, MD5, SHA1, SHA256, SHA512, SHA3, AICH, ED2K, DC++ TTH, BTIH, Tiger, GOST R 34.11-2012, RIPEMD-160, HAS-160, EDON-R, and Whirlpool.
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    Downloads: 3,001 This Week
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  • 2
    mcrypt, and the accompanying libmcrypt, are intended to be replacements for the old Unix crypt, except that they are under the GPL and support an ever-wider range of algorithms and modes.
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    Downloads: 770 This Week
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  • 3
    ccrypt is a command-line tool for encrypting and decrypting files and streams. It provides strong encryption based on the Rijndael cipher, a version of which is also used in the Advanced Encryption Standard.
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    Downloads: 460 This Week
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  • 4
    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: 4 This Week
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    Free and Open Source HR Software

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  • 5
    SSLScan queries SSL services, such as HTTPS, in order to determine the ciphers that are supported. SSLScan is designed to be easy, lean and fast. The output includes prefered ciphers of the SSL service, the certificate and is in Text and XML formats.
    Downloads: 5 This Week
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  • 6

    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: 16 This Week
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  • 7

    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.
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    Downloads: 5 This Week
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  • 8
    A Linux port of the OpenBSD/FreeBSD Cryptographic Framework (OCF). This port aims to bring full asynchronous HW/SW crypto acceleration to the Linux kernel, OpenSwan, OpenSSL and applications using DES, 3DES, AES, MD5, SHA, PublicKey, RNGs and more.
    Downloads: 1 This Week
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  • 9
    MSLK provides the precompiled Win32 binaries of some excellent porject with a GPL or similar open source license. Here will keep updated.
    Downloads: 1 This Week
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  • 10
    A package of Rijndael, Twofish and Serpent encryption algorithms implemented in x86 assembly. Meant to learn basics of assembly, learn about the algorithms or to be used in a C program.
    Downloads: 0 This Week
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  • 11
    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: 0 This Week
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  • 12
    This project will provide a library for using the AES round 3 cipher candidates (Mars, RC6, Rijndael, Serpent, and Twofish) in an easy to use API. Support for MD5, SHA.
    Downloads: 0 This Week
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  • 13
    A tight python crypto module implementing only the latest and greatest: Rijndael (AES) symmetric cipher in 128, 192 and 256 bits supporting password encryption, SHA 256 and several CSPRNG schemes in pure python.
    Downloads: 0 This Week
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  • 14
    Linux user-space implementation of Aladdin's eToken R2 device driver
    Downloads: 0 This Week
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  • 15
    BBSGen is an improved Blum-Blum-Shub pseudorandom number generator. It consists of a C library (libbbsgen) and command-line tool (bbsgen). BBSGen can be used in applications and command-line as secure, unpredictable and strong PRNG.
    Downloads: 0 This Week
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  • 16
    BP-Sim

    BP-Sim

    EFT simulator

    BP-Sim allows users to perform an extensive range of tests across the chain of payment services and thus identify potential causes of failures before launching payment systems into production. BP-Sim consists of following modules: BP-Source, BP-Host, BP-HSM and BP-SeeEMV. BP-Source and BP-Host are payment transaction simulators supporting formats as: APACS30, AS2805, many ISO8583 dialects, IFSF, SPDH, TCMP. Together with industry-standard cryptography, multi-platform support, configurable transaction load up to 2000 TPS. BP-Sim HSM module provides an adequate TCP/IP simulation of the Thales Hardware Security Mod. BP-SeeEMV simulates the steps involved in an EMV transaction that take place in the EMV terminal and the Issuer Server (when conducted online). Module can process a transaction one step at a time in step-by-step mode or to certain break-point.
    Downloads: 0 This Week
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  • 17
    BP-Tools

    BP-Tools

    Set of useful tools for payment service development

    The BP-Tools set consist from applications supporting EFT testing, benchmarking and transaction service development. BP-Tools suite currently consists of following three components: - BP-CCALC: Cryptographic Calculator - BP-CardEdit: Thales P3 Input/Output file editor - BP-EMVT: EMV Tool - BP-HCMD: Thales HSM Commander
    Downloads: 0 This Week
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  • 18
    Portable, optimised implementation of Bruce Schneier's 64-bit symmetric block cipher, Blowfish. Includes support for ECB, CBC, CFB, OFB and CTR block cipher modes, weak key detection and parallelisation using OpenMP.
    Downloads: 0 This Week
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  • 19
    Cryproc is module for the Linux kernel 2.6 which allows user space programs to access the kernel's CryptoAPI functions via a file called "cryproc" created in the /proc filesystem.
    Downloads: 0 This Week
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  • 20

    Cryptography Tools

    Classic & Modern Cryptography tools

    Cryptography Tools is a project to develop demonstration tools on classic (currently Caesar and Playfair) & modern crypto-systems, including private & public key encryptions, digital signatures, cryptographic hashes and authenticated encryption.
    Downloads: 0 This Week
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  • 21

    Hashpipe

    Modular Digestion Tool

    Hashpipe is modular hashing tool which can have its functionality easily expanded with new modules. It can be used as a compact command-line tool, a C library and a C++ object.
    Downloads: 0 This Week
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  • 22
    Keychain Framework is an Objective C Foundation-based framework for accessing Keychain and Security services under MacOS X. It provides convenience wrappers around the CDSA library included with MacOS X, facilities for manipulating keychains, and more.
    Downloads: 0 This Week
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  • 23
    MpNT is a multi-precision number theory library that provides a base for building cryptographic applications. It may however be used in any domain where efficient integer, modular, and floating-point computations involving large numbers are required.
    Downloads: 0 This Week
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  • 24
    libnwrap - a library of network function wrappers that provides a simple and clear yet powerfull enough API for UNIX network programming. It targets ease of use, protocol independence, reentrancy, thread-safety, as well as built-in cryptograpy
    Downloads: 0 This Week
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  • 25
    Open Legacy Storage Document: Generic Document Archiving on Disk and Network(using MINA) Framework in Java for huge number of docs(up to 2^192 documents), efficient(Java NIO), crypto, net transfert, web retrieve, J2EE and eMail archiving compatible.
    Downloads: 0 This Week
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