This package implements the PRESENT encryption algorithm as proposed in the paper
PRESENT: An Ultra-Lightweight Block Cipher

The package implements the 80-bit key version which is quite popular and conceptually same as 128-bit key version.

In julia prompt do Pkg.clone("https://github.com/udion/PRESENT.jl")

The module provides two functions :

• PRESENTenc(::String, ::String)
• PRESENTdec(::String, ::String)
  both functions take 2 input paprameters the first one being the key and second one as inputState.
  Both the input are expected to be in hexadecimal format (without 0x), also since PRESENT is designed to be used on 64-bits state, in the hexadecimal format the string length of 16 well acommodates the possible domains for input.

using PRESENT
k_master = "ff1234abc"
input = "6789ffaed"
encrypted = PRESENTenc(k_master,input)
decrypted = PRESENTdec(k_master,encrypted)

julia>encrypted
"b376caacdcb790e7"

julia>decrypted
"00000006789ffaed"