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#!/usr/bin/env ruby
require 'gpgme'
# If you do not have gpg-agent installed, comment out the following
# and set it as :passphrase_callback.
#
# def passfunc(hook, uid_hint, passphrase_info, prev_was_bad, fd)
# $stderr.write("Passphrase for #{uid_hint}: ")
# $stderr.flush
# begin
# system('stty -echo')
# io = IO.for_fd(fd, 'w')
# io.puts(gets)
# io.flush
# ensure
# (0 ... $_.length).each do |i| $_[i] = ?0 end if $_
# system('stty echo')
# end
# $stderr.puts
# end
unless ENV['GPG_AGENT_INFO']
$stderr.puts("gpg-agent is not running. See the comment in #{$0}.")
exit(1)
end
plain = 'test test test'
puts("Plaintext:\n#{plain}")
# Perform symmetric encryption on PLAIN.
crypto = GPGME::Crypto.new(:armor => true)
cipher = crypto.encrypt(plain, {:symmetric => true,
# :passphrase_callback => method(:passfunc)
})
str = cipher.read
puts("Ciphertext:\n#{str}")
cipher = GPGME::Data.new(str)
plain = crypto.decrypt(cipher, {
# :passphrase_callback => method(:passfunc)
})
puts("Plaintext:\n#{plain.read}")
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