Showing 624 open source projects for "gnu linux"

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  • 1
    The MOTET Cipher & SE Scrambler

    The MOTET Cipher & SE Scrambler

    A tiny, fast encryption tool in C

    MOTET is a tiny, fast super-encipherment application written in C, featuring the new CSPRNG/stream ciphers MOTE and BEDBUG in each of their three variants, as well as the "gold standard" among ciphers, ISAAC. MOTET brings multiple levels of encryption, including a ciphertext-hash, a Vigenere mixing function, a choice of Caesar MOD or Caesar MIX ciphering on the primary key-stream, plus a deeply scrambled "outer shell" as a final super-encryption stage. A unique nonce IV guarantees that...
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  • 2
    SES Super-Encypherment Scrambler

    SES Super-Encypherment Scrambler

    SES brings back the uncrackable onetime pad, with a digital twist.

    SES brings back the uncrackable onetime pad, with a digital twist. It is well known that a random key of message-length is the only provably unbreakable cipher. SES uses cryptographic strength pseudo-random keys of message-length for its many encipherments, in addition to offering true one-time pad capability for the intrepid. SES is built on ISAAC, Bob Jenkins' unbroken CSPRNG, a fast and simple stream cipher placed in the Public Domain in 1996. SES now gives you the ability to...
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  • 3
    CryptoPad v1.0

    CryptoPad v1.0

    AES-128 bit file encryptor

    CryptoPad is a Java based file encryptor ! It can encrypt every type of file. The icing on the cake is that it's 100% cross-platform. i.e. You can run the same .jar file on Windows, Mac OS, Linux and any OS capable of running JRE 8 :) CryptoPad uses AES-128 bit symmetric key encryption to secure your data.
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  • 4
    Checksum Directory

    Checksum Directory

    Check some checksum!

    A secure and centralized way to get checksums of common downloads. You will find the usual MD5 hash, but also the newer and more secure hashes like SHA-1, SHA-256 and even SHA-512. If the filesize and all up to four hashes match, you should be save to use that downloaded file.
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  • 5
    This is a program that creates one-time-pads, encodes plaintext files with the one-time-pads, decodes them, and creates number-stations-like sound files for message transmission.
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  • 6

    jFileCrypt

    jFileCrypt encrypts and decrypts files

    jFileCrypt encrypts and decrypts files and directories fast and secure. It is written in Java 5 and uses the Java Cryptographic Extensions. It supports the following algorithms: Blowfish, DES, 3DES, AES and RC4.
    Downloads: 0 This Week
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  • 7
    ISC - The ISAAC Stream Cipher

    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...
    Downloads: 1 This Week
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  • 8
    ImpraStorage

    ImpraStorage

    ImpraStorage provided a private imap access to store large files

    ImpraStorage provided a private imap access to store large files. Each file stored on the server is split in severals random parts. Each part also contains random noise data (lenght depends on a crypt key) to ensure privacy and exclude easy merge without the corresponding key. An index of files stored is encrypt (with the symmetric-key algorithm Kirmah) and regularly updated. Once decrypt, it permit to perform search on the server and download each part. transfert process is...
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  • 9

    Cifrario di Cesare-Brute force

    Brute force su testi crittografati con il cifrario di Cesare.

    Questo software permette di decrittografare testi crittografati con il cifrario di Cesare tentando tutte le combinazioni possibili.
    Downloads: 0 This Week
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  • 10

    libnsa

    RSA 4096 C++ library

    Libnsa stands literally for "Library: Non Semper erit Aestas". It is a small C++ library which implements RSA encryption. The current version only creates the 4096 bit public and private keys.
    Downloads: 0 This Week
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  • 11
    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.
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  • 12
    Simple pygtk application for create and verify md5, crc32 and other checksum
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  • 13
    SSL Diagnos

    SSL Diagnos

    SSL Strength Evaluation and Test Utility

    SSL Diagnos is used to test SSL strength; get information about SSL protocols (pct, ssl2, ssl3, tls, dtls) and cipher suites. It can also be used for testing and rating ciphers on SSL clients. It has also specific support for pop3s, sip, smtp and explicit ftps. Tests for heartbleed (including dtls). Furthermore a separate tool, SSLPressure, not using openssl can be used to check the whole spectrum of possible SSL protocols on a server. Can also be used for testing ssl for...
    Downloads: 1 This Week
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  • 14

    Python3 GnuPGInterface (GPG)

    Python3 GPG aka GnuPG Interface

    Python3 port of Frank Tobin's Python GnuPGInterface incorporating the --keyring and --secret-keyring patch. "Python GnuPGInterface is meant to be a filehandle-concentrating Python interface to GnuPG, the GNU Privacy Guard. It has an API similar to the Perl module GnuPG::Interface" and identical to the Python2 module GnuPGInterface.
    Downloads: 0 This Week
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  • 15
    Off-the-Record (OTR) Messaging allows you to have private conversations over instant messaging by providing encryption, authentication, deniability, and perfect forward secrecy.
    Downloads: 0 This Week
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  • 16
    Bigram Table Generator

    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...
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  • 17

    innocence-java

    Replace text with POS equivalent text, in a reversible fashion.

    Program takes (currently) english text sentences, and replaces each word in a given sentence with another word having the same Part of Speach (POS) tag. This creates a new sentence containing none of the original words. This new sentence can then be transmitted to a remote user, and using the same software, "de-crypted" into yielding the original sentence. The software relies on having a known "seed" value for the random number generator, which is known only by the sender and...
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  • 18
    Azrar

    Azrar

    Encryption addressing long-term data secrecy

    Most of today's cryptographic standards will be broken with tomorrow's computational power. Azrar is a user-friendly tool for the encryption/decryption of single files - preferably compressed archives - addressing long-term data secrecy. Thus, Azrar provides the possibility to use webspace for secure data transfer between two communication/transfer partners (encryption only, network transfer not yet included in current version). Data in encrypted files are secret/private indefinitely. To...
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  • 19
    Fileprivacy

    Fileprivacy

    Fileprivacy easily encrypts your files

    Fileprivacy is a small tool which easily encrypts and decrypts files with common algorithms like AES, Blowfish, Triple DES and RSA. You can either use passwords or keyfiles. Since Fileprivacy is coded in Java it should run on all popular operating systems. #######BETA 2####### Bugfix - Beta 1 stopped working if filename was too short or long - added .exe file ####### NOTE ####### This is an early beta implying there are some issues left. The Keygenerator stops working if you...
    Downloads: 0 This Week
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  • 20

    JCryptor

    JCryptor is an encrypting tool based on the Caesar-cipher.

    JCryptor uses the Caesar-cipher to encrypt keystrokes on-the-fly. It can also be used to decrypt an encrypted text easily. Caesar-cipher is a simple encryption algorithm, developed by Julius Caesar, to encrypt his correspondence with Cicero in the ancient world. Therefore it uses a simple character substitution method to replace a given character by another. A keyshift of thirteen is called ROT13. ROT13 can be decrypted by encrypting it again with ROT13. Even today this simple method is used...
    Downloads: 0 This Week
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  • 21
    QPass password manager
    QPass is easy to use, open source password manager application with built-in password generator. You can store in it's database such data as passwords and logins which will be encrypted using AES-256 with PBKDF2(number of iterations set by user). Each entry can include additional information about entry such as name, url adress and description.
    Downloads: 2 This Week
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  • 22
    Designed to use what is known about users via the /etc/passwd file on unix/linux systems to generate a dynamic dictionary or csv file of more accurate guesses as to what their possible password may be, to look for bad password protection practices.
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  • 23

    Digital signing using a Smart Card

    Java code that enables you to sign documents using a smart card.

    With this library, you'll be able to access a smart card and extract its information. If the smart card contains a key store, you can use it to create digital signatures. This library currently implements signing of PDF documents using the Belgian eID.
    Downloads: 1 This Week
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  • 24
    EnigmaGPG Community

    EnigmaGPG Community

    Sending encrypted data through internet web applications.

    Enigma GPG Community allows you to encrypt / sign text and attachments using plugins in browsers, to send encrypted information via any Internet application that can only be understood by the intended recipient ensuring the authenticity, privacy and confidentiality of messages between the sender and receiver . Note the utility that can achieve this project because it aims to meet the global need for privacy on the web. Also applies to any web application that allows text input by the user...
    Downloads: 0 This Week
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  • 25
    TACACS+ protocol client library and PAM module in C. This PAM module support authentication, authorization (account management) and accounting (session management)performed using TACACS+ protocol designed by Cisco.
    Downloads: 0 This Week
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