bin/break-ecb-string-appender from scepticulous/crypto-toolbox

bin/break-ecb-string-appender

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#!/usr/bin/env ruby

require 'crypto-toolbox'
require 'pry'
require 'stackprof'


suffix = plaintext =  Base64.decode64("Um9sbGluJyBpbiBteSA1LjAKV2l0aCBteSByYWctdG9wIGRvd24gc28gbXkgaGFpciBjYW4gYmxvdwpUaGUgZ2lybGllcyBvbiBzdGFuZGJ5IHdhdmluZyBqdXN0IHRvIHNheSBoaQpEaWQgeW91IHN0b3A/IE5vLCBJIGp1c3QgZHJvdmUgYnkK")
key       = "my-secret-key" 
mode      = :ecb
oracle    = Utils::EcbOracle.new(static_key: key,static_mode: mode,static_suffix: suffix,prepend: false, append: true) 


StackProf.run(mode: :cpu, out: 'tmp/stackprof-ecb-decryption.dump') do
  result = Matasano::Solver.new.solve12(oracle)
  puts "\nBroke ECB! Result: \n#{result}\n" if result
end