diff options
Diffstat (limited to 'provider_base/lib')
| -rw-r--r-- | provider_base/lib/macros/keys.rb | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/provider_base/lib/macros/keys.rb b/provider_base/lib/macros/keys.rb index ea4c3df2..0ed7ccd0 100644 --- a/provider_base/lib/macros/keys.rb +++ b/provider_base/lib/macros/keys.rb @@ -36,14 +36,15 @@ module LeapCli end # - # on the command line an onion address can be created - # from an rsa public key using this: + # Generates a onion_address from a public RSA key file. # - # 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. # - # path_name is the named path of the tor public key. + # Basically, an onion address is nothing more than a base32 encoding + # of the first 10 bytes of a sha1 digest of the public key. + # + # Additionally, Tor ignores the 22 byte header of the public key + # before taking the sha1 digest. # def onion_address(path_name) require 'base32' @@ -53,9 +54,9 @@ module LeapCli 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 + public_key = public_key.slice(22..-1) # Tor ignores the 22 byte SPKI header + sha1sum = Digest::SHA1.new.digest(public_key) + Base32.encode(sha1sum.slice(0,10)).downcase else LeapCli.log :warning, 'Tor public key file "%s" does not exist' % tor_public_key_path end |