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# encoding: utf-8
#
# Macro for dealing with cryptographic keys
#
module LeapCli
module Macro
#
# return the path to the tor public key
# generating key if it is missing
#
def tor_public_key_path(path_name, key_type)
path = file_path(path_name)
if path.nil?
generate_tor_key(key_type)
file_path(path_name)
else
path
end
end
#
# return the path to the tor private key
# generating key if it is missing
#
def tor_private_key_path(path_name, key_type)
path = file_path(path_name)
if path.nil?
generate_tor_key(key_type)
file_path(path_name)
else
path
end
end
#
# on the command line an onion address can be created
# from an rsa public key using this:
#
# base64 -d < ./pubkey | sha1sum | awk '{print $1}' |
# perl -e '$l=<>; chomp $l; print pack("H*", $l)' |
# python -c 'import base64, sys; t=sys.stdin.read(); print base64.b32encode(t[:10]).lower()'
#
# path_name is the named path of the tor public key.
#
def onion_address(path_name)
require 'base32'
require 'base64'
require 'openssl'
path = Path.find_file([path_name, self.name])
if path && File.exists?(path)
public_key_str = File.readlines(path).grep(/^[^-]/).join
public_key = Base64.decode64(public_key_str)
sha1sum_string = Digest::SHA1.new.hexdigest(public_key)
sha1sum_binary = [sha1sum_string].pack('H*')
Base32.encode(sha1sum_binary.slice(0,10)).downcase
else
LeapCli.log :warning, 'Tor public key file "%s" does not exist' % tor_public_key_path
end
end
private
def generate_tor_key(key_type)
if key_type == 'RSA'
require 'certificate_authority'
keypair = CertificateAuthority::MemoryKeyMaterial.new
bit_size = 1024
LeapCli.log :generating, "%s bit RSA Tor key" % bit_size do
keypair.generate_key(bit_size)
LeapCli::Util.write_file! [:node_tor_priv_key, self.name], keypair.private_key.to_pem
LeapCli::Util.write_file! [:node_tor_pub_key, self.name], keypair.public_key.to_pem
end
else
LeapCli.bail! 'tor.key.type of %s is not yet supported' % key_type
end
end
end
end
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