Implementing SHA-3 derived function KMACXOF256 function

Inspired by the NIST.SP.800-185 paper, Peter and Hyunggil collaborated to implement the cryptographic algorithm in Java.

Usage

java Main -[h|t|e|d] [-fin input] [-fout output] [-pw password]

first flag(required) is for the mode:

• -h(ash)
• -t(ag)
• -e(ncrypt)
• -d(ecrypt)

optional flags:

• -fout output.file
  • file which is written to in binary. If no output file supplied, binary will be printed to screen in hex, or text output will be printed in ascii.
• -fin input.file
  • input file; if not provided, user will be requested to provide data via the command-line.
• -pw password
  • self explanatory. Password will be used for encryption, decryption and tag/MAC modes.