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S/Key Generator. An RFC2289 compliant One-Time Password generator written in Java language and O.S. Thinlet package for GUI.
It uses MD4 and MD5 hash algorithms.
Cryptomni is a program which can encrypt and decrypt files using the one-time pad cipher. If a key is truly random, kept secret, and never reused, this encryption algorithm can be proven to be unbreakable.
JSerpent is an easy to use Java implementation of the powerful Serpent cryptography algorithm. It can be easily implemented into any project, and is complete with ECB, padding, and a simple API.
JFish is a simple Java implementation of the popular Twofish cryptography algorithm. It allows any application to easily implement powerful encryption, using a single small library and minimal code changes.
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JRijndael is a 100% pure Java implementation of the popular Rijndael (aka AES) cryptography algorithm. It's designed to be implemented as easily as possible and features ECB, padding, and a simple API.
An implementation of Shoup's "Practical Threshold Signature" in Java. This is an (n,k)-threshold signature system: at least k parties out of n must independently sign a piece of data to produce a valid group signature.
The Moonbounce API is a set of high level objects that encapsulate pieces of the Bouncycastle lightweight crypto API. Moonbounce significantly simplifies RSA key generation, signing, encryption/decryption and verification of both byte arrays and files.
Imagine being able to send an encrypted message as a single file to someone working on any Operating System, without them having to install any software to decrypt it. Just send them an Inkjar. Or you can store your own passwords on a usb key anywhere.
Private-key, symmetrical (same password to encrypt and decode) file encryption with 8-bit to 2147483647-bit (2^3 to 2^31) encryption using my own algorithm and my own extension of MD5 (http://blog.robtoth.net/2009/06/tencryption-computer-programming.html
Compute shared RSA keys for two parties using Gilboa's protocol. Other protocols may be added. Contains JAVA source for Benaloh, Naccache-Stern and Goldwasser-Michali crypto-algorithms. Oblivious transfers and BiPrimaliy tests also implemented.
Java Crypt Framework (JCryptFX) is a java-based education project for de-/encrypting streams. It has a implementation of DES and TripleDES in it but the framework user can write own cryptography algorithms and stream types for it - includes a console app
Cryptographically secure your files with asymmetric and symmetric keys, as well as password based encryptions and file/text checksums. Use upto 6 different keys to encrypt/decrypt and get checksums using MD2, MD5, SHA1, CRC32, etc..
Quickly encrypt and decrypt your files with Petri. View encrypted text and image files containing your passwords or other sensitive information. Petri is written in Java and therefore runs on any operating system supporting the Java Runtime Environment.
CryptoServer is the daemon for handling Sign-Verify, Encryption-Dencryption, Envelop-Openenvelop based on OpenSSL including the SEED symmetric algorithm (Korean Standard Symmetric Algorithm).
It's interface is just tcp/ip socket and very easy to handle
bookHexor use the key.txt for encoding where is saved an arbitrary text, which is used as key. bookHexor read the key.txt and notice for each character, where it can be found as an index. If you encode text each of your charakters is displayed as index.
Cryptix is an international volunteer effort to produce robust, open-source cryptographic software libraries. Cryptix products are free, both for commercial and non-commercial use and are being used by developers all over the world.
GanzĂșa is a cryptanalysis tool for classical ciphers (mono and polyalphabetic) that lets the user define almost completely arbitrary cipher and plain alphabets, allowing for the proper cryptanalysis of cryptograms obtained from non-English texts.
This project develops an application to provide PGP functionality (encrypting, decrypting, and verifying text and data using asymmetric keys as well as managing these keys) on devices supporting PersonalJava (eg. mobile phones like the SonyEricsson P800)
Provides efficient, effective implementations of 32- and 64-bit hash functions based on Rabin fingerprints / irreducible polynomials, in Java. Also provides integration with java.security.MessageDigest API.
J2MESafe is an end-user Java application that stores sensitive information like passwords on mobile phones with strong encryption. Requires Java Micro Edition (J2ME) with MIDP-1.0, which is available on most current mobile phones.