JCipher

JCipher is a cryptographic tool that implements algorithms for encryption, decryption and key generation. The program is based on symmetric as well as asymmetric algorithms. The tool is still being developed, gradually adding new algorithms.

Ultimately, the program is intended to be a CLI, but due to the constant addition of algorithms, the main class file is being rewritten to test cryptographic solutions faster.

Currently existing algorithms

Cezar DES Rot13 RSA Vernam

Options

Flag	Long Form	Description	Example
-t	--type	Select algorithm type. (RSA, DES, VERNAM...)	--type "RSA"
-e	--encrypt	Select file for encryption.	--encrypt fileForEncryption.txt
-d	--decrypt	Select file for decryption.	--decrypt fileForDecryption.txt
-g	--generate	Generate key / keys for provided algorithm.	--generate / --generate 2048
-k	--key	Select file with key for encryption or decryption.	--key keyFile.txt
-o	--output	Writes output to file.	--output output.txt
-h	--help	Prints program instruction to the console.	--help

Notes

• "2048" in --generate options example refers to number of bits for the key. Number of bits are only applicable for Vernam and RSA.

Attention

Please take into account that a significant part of the algorithms is not recognized as a cryptographic standard due to their low security level. The program also includes, classical ciphers, which are treated more as a curiosity than viable solutions.

Installation

After improving the main class (src/JCipher) so that it reads String[] args instead of tempArgs array, the compiled program can be added as an alias to .bashrc on Linux for global access.

alias jcipher='java /program/location/JCipher'