JCrypTool A cryptography e-learning platform
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JCrypTool Tags

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JCrypTool Description

JCrypTool is a Java-based software utility that facilitates a user-friendly environment for learning cryptography and cryptanalysis, accompanied by examples and simulation tools.No installation necessary, aside from Java-basedThere is no setup pack involved, which makes JCrypTool (almost) portable. As long as you have Java installed on your PC, you can drop the program files in a custom directory on the disk and just click the executable to launch the app. Otherwise, you can copy it to a pen drive and directly run it on any computer with minimum effort, as long as it has Java installed. More importantly, it does not modify Windows registry settings (unlike most installers), so it doesn't increase the risk of system stability issues. Clear-cut interface with a familiar text viewerThe UI shouldn't impose any difficulties to users. JCrypTool's main window contains a commonly found text viewer that's backed by other panes, such as file and crypto explorers. Encrypt and decrypt messages with popular security methodsSo, you can found about more information about particular cryptography components, as well as use tools to practice what you've learned. For example, you can encrypt and decrypt messages using the ElGamal or RSA algorithm by choosing a key from the keystore or by creating a new key pair, as well as explore other popular encryption/decryption methods, such as Caesar, transposition, substitution, and XOR. Create messages with popular checksums and transform textJCrypTool also lets you put together signatures for messages using MD5 or SHA3, create a text authentication code via the HMacMD5 algorithm, generate pseudo-random data with SHA1, sign and verify text with DSA, encrypt or decrypt messages with AES, and so on. Keeping track of studied material becomes easy if you add bookmarks to save topics. You can undo and redo actions, search and replace text, convert to lowercase or uppercase, replace umlauts, delete blanks and line breaks, as well as delete non-alphabetic characters. Test multiple analysis modes and check out visualsAs far as analysis tools are concerned, you can evaluate messages using the entropy, frequency, Friedman, substitution, transposition or Vigenere Breaker tests. What's more, JCrypTool supplies you with several graphical examples to help you better understand cryptography and cryptanalysis, like the RSA cryptosystem, Huffman coding, and graph isomorphism. Evaluation and conclusionThere were no stability issues in our tests, since the software application did not freeze, crash or display alerts with errors. It leaves a small footprint on PC resources and swiftly executes commands. To conclude, JCrypTool proves to be a resourceful piece of software filled with theoretic and practical tools for understanding cryptography and cryptanalysis. Reviewed by Elena Opris, last updated on November 26th, 2014

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