crypto015

A simple java implementation of AES and CBC/CFB using the Java SDK

##Usage Before proceeding make sure you have downloaded the jurisdiction policy for your respective Java platform from over here. Place the policy files in the {JDK_HOME}\jre\lib\security folder. (Usually already present from Java SDK 1.4).

Using the this tool it's easy, compile it or use the pre-compiled /dist/crypto015.jar in dist.zip file

java -jar crypto015.jar [OPTION...]

##Options

• --generate-key PATH [KEY_SIZE]

  Print the key to the specified path, the key size (128|192|256) can be set, default is 256.

• --encrypt INPUT_PATH OUTPUT_PATH [KEY] [MODE]

  Encrypt an input file to an output file and an output path.

  INPUT_PATH - File path for the input

  OUTPUT_PATH - File path to output. NOTE: If not present it will be created, otherwise it will be overwritten.

  KEY_PATH - Path to file containing the key for encryption

  MODE - Chaining mode. Either "CBC" or "CFB".

  Example usage ---encrypt C:\\Path\to\File.txt C:\\Output.txt C:\\key.txt CBC

• --decrypt INPUT_PATH OUTPUT_PATH KEY_PATH MODE

  Decrypt a message given a key to an output text

  INPUT_PATH Input path of the ciphertext

  OUTPUT_PATH Output path for the decrypted text

  KEY_PATH Path to key file

  MODE Mode for decryption, either CBC or CFB

Example usage ---decrypt C:\\Path\to\CipherFile C:\\Output.txt C:\\key.txt CBC