#!/usr/bin/ruby -w

# Put your best guess in passphrase
passphrase = "oops"
characters = " !\"\#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~"

def test(phrase)
  print phrase, "\t"
  msg=`openssl enc -d -aes-256-cbc -a -in bitcoin-wallet-backup-2014-12-06 -k #{phrase} |tr -cd "[:print:]" | awk '{print $1}'`
  msg = msg.chomp
  if msg == "org.bitcoin.production"
    puts "Found it!  #{phrase}"
    exit 0
  end
end

# transpose adjacent chars
(passphrase.length - 1).times do |i|
  testphrase = passphrase.dup
  testphrase[i] = passphrase[i+1]
  testphrase[i+1] = passphrase[i]
  test testphrase
end

# delete one char
passphrase.length.times do |i|
  testphrase = passphrase.dup
  testphrase = testphrase[0,i] + testphrase[(i+1)..-1]
  test testphrase
end

# substitutute one char
passphrase.length.times do |i|
  characters.chars.each do |c|
    testphrase = passphrase.dup
    testphrase[i] = c
    test testphrase
  end
end

# insert one char
(passphrase.length + 1).times do |i|
  characters.chars.each do |c|
    testphrase = passphrase.dup
    testphrase.insert(i, c)
    test testphrase
  end
end


puts "No luck."
exit 1

 Update split/combine threshold
Up the max to 100/200 as startup, and added rpc commands, which allow
the default max, or wallet balance divided by 250

start HoboNickels.exe -splitthreshold=99 -combinethreshold=100

01:43:14
getcheckpoint


01:43:14
{
"synccheckpoint" : "dad6a798d7a96bf2189c1a900b716f9dc96da557967bed8b21ccd337fbef66f8",
"height" : 1962556,
"timestamp" : "2015-04-08 01:04:13 UTC",
"policy" : "strict"
}