Showing 396 open source projects for "open java projects"

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  • 1
    U-Tranz

    U-Tranz

    UDP based secure file transfer application written in JAVA.

    U-Tranz is a free application developed on the characteristics of UDP allows the transmission of unlimited file size. Most of the applications based on UDP restrict file sharing upto 64kb which makes transmission less efficient on large files. Along with the tremendous increase in file size, certain features like implementation of Government Standard Security Algorithms (AES-256*/RSA-2048 and SHA-512) have been added to this application for secure sharing of huge files across different...
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  • 2

    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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  • 3
    This package provides the following pure Java extensions to the Bouncy Castle framework www.bouncycastle.org and was made freely available by www.novosec.com: 1. OCSP (RFC 2560) server and client / 2. CMP (RFC 2510, RFC 2511) generator and parser
    Downloads: 0 This Week
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  • 4
    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...
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  • 5

    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...
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  • 6

    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: 0 This Week
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  • 7
    Hide & Reveal
    Composed of a Java steganographic library and GUI to use steganography. Primarily intended for research communities on security and steganography to implement new dissimulation and steganalysis algorithms. More information at www.hidereveal.org
    Downloads: 0 This Week
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  • 8
    Codegroup

    Codegroup

    A Java application for transferring computer files in 5 letter groups

    Codegroup is a Java application that will allow one to convert binary (or text) computer files in to 5 letter codegroups for transmission over email, landline telephones, radioteletype or Morse Code. Codegroup has internal error correction & limited cryptography capabilities. Codegroup : ZZZZZ YBPIL AIAIG FMOPP CPAAA DGNGP GPGPA ADNJN ELJKO ELIMO GEOHF KIFGP IFBCB PKCPI YJMHE PHBHP PPOBH NCOHD AKLLL AGHFP DEGEF LKELC EAIJI ABAGP AHPPO IHHPH OHPDF YNFPB ALEPO KMPKP Once this...
    Downloads: 0 This Week
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  • 9

    Simplest Text Encrypter

    A simple example of polyalphabetic cipher in Java.

    Cryptography fascinates everyone. A variety of encryption techniques and ciphers are used to code important data. A polyalphabetic cipher is one of the simplest cipher one can make. This is a Java program to implement polyalphabetic cipher. [How the cipher encodes?] Input Data: helloaf Key: love l - 12th letter in Alphabet o - 15th letter in Alphabet v - 22nd letter in Alphabet e - 5th letter in Alphabet Now: h(l) e(o) l(v) l(e) o(l) a(o) f(v) Further: h(+12)...
    Downloads: 0 This Week
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  • 10

    JaStaCry

    Java Stacked Crypto

    Java Stacked Crypto merges different hiding, merging and crypto stacks to secure files.
    Downloads: 0 This Week
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  • 11

    chaOS41

    A cryptocurrency like Bitcoin improved upon with reality binding.

    There is a reason this project holds no code. chaOS41 is a cryptocurrency with reality binding. A given value of money was paid for a surface area the size of a flower pot. It was out of proportion. The chaoOS41 currency corrects that. It binds its value to reality. Its unit value is a ratio between money and land area.. When that ratio normalizes, the currency becomes available to the public. 1 more developer is wanted. For that you need inside access, which means...
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  • 12
    A pure java library to operate on OpenPGP cards directly using javax.smartcard apis with no need of external dlls/frameworks (such as pkcs11 or opensc-java). Includes sample OpenPGP card edit application.
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  • 13

    JSSLTrace - a SSL/TLS Interceptor

    A java-based interceptor for SSL/TLS protocol

    Jssltrace is a java-based tool, which enables it's user to intercept ssl based communication between two programs. Jssltrace works essentiallly in the same manner as tcptrace (http://www.pocketsoap.com/tcptrace), which is the main inspiration for it.
    Downloads: 0 This Week
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  • 14

    jEncrypt

    jEncrypt is a command line file encryption archiver

    jEncrypt is a command line file encryption archiver designed to help you encrypt files and directories into a single file archive.
    Downloads: 0 This Week
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  • 15
    PortableSigner
    PortableSigner is a tool for digital signing (with X.509 certificates) of PDF files
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    Downloads: 13 This Week
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  • 16
    silvertunnel - Java lib+browser for TOR
    silvertunnel.org is a project that provides an end-user browser, a Java library and additional Java security tools to easily access anonymity networks such as the Tor (torproject.org) network. Secure and easy to use. Tor4Java and Tor Browser. Attention: see project status on page https://sourceforge.net/p/silvertunnel/discussion/962278/thread/83dc2d02/#
    Downloads: 9 This Week
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  • 17
    FroZenLight connects simple line art and mathematics. The source of light can be positioned so that either symmetric reflection patterns or secret messages (Cryptography) are created. Example light patterns and math exercises for education are provided.
    Downloads: 0 This Week
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  • 18
    License Generator

    License Generator

    Java Library to generate license for your application.

    This is a free and open source java library to generate license for your application. Use this library to make your custom license file with your own extension. It encrypts the license file with the one time pads encryption technique to make it hard to break. The generated license file can be set to expire after certain time, and also can be set to expire manually after a certain action.
    Downloads: 1 This Week
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  • 19
    Web KeePass Password Safe
    Web AND Mobile (Apple iPhone) based, multi user, java port of the KeePass project. A free, easy to use password manager which helps you to manage your passwords in a secure way. Focused on deep encryption and ease of use.
    Downloads: 3 This Week
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  • 20

    samizdat

    Kerberized Messaging Toolkit for Java

    Samizdat is a toolkit for Java for building Kerberos secured distributed, message-oriented applications. The toolkit contains base classes that simplifies the management of Kerberos login contexts as well as flexibly sign and seal messages between principals using the Java GSS API. The toolkit contains Transformation classes for Kerberizing JMS traffic as well as a super-lean HTTP based protocol stack that supports both Synchronous (RPC) and Asynchronous modalities.
    Downloads: 0 This Week
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  • 21
    Certificate Helper
    Certificate-helper is a utility desktop application written in Java designed and created to assist (mainly developers) in creating and viewing keystores and digital certificates. This is done via a user interfaces implemented in Swing.
    Downloads: 1 This Week
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  • 22
    OhCrypt Encryption Tool
    OhCrypt lets you easily encrypt and decrypt files using some of the most popular algorithms, like AES, Blowfish and Serpent. With OhCrypt, you can secure your data with a password-based encryption algorithm through a clean and simple interface. It demonstrates state of the art of cryptology techniques, such as password hashing and salt. Ohcrypt also features self-extractable and self-destructive encrypted files
    Downloads: 0 This Week
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  • 23
    egrsa

    egrsa

    rsa-elgamal comparison

    compare time of process between rsa and elgamal algorithm used to encryption and digital signature.
    Downloads: 0 This Week
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  • 24
    JCrypTool - Eclipse based Crypto Toolkit
    JCrypTool moved to GitHub! See https://groups.google.com/d/topic/jcryptool-developers/nauEXL6vsbk/discussion for more information and visit our new project home at https://github.com/jcryptool
    Downloads: 0 This Week
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  • 25
    The Martus (TM) Bulletin System is used by human rights and social justice groups to track violations. This Java program is as easy to use as email. Bulletins can be encrypted or searched, and can be backed up to a remote server. See www.martus.org.
    Downloads: 0 This Week
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