--- /dev/null
+#!/usr/bin/ruby
+# rsa_pkcs15_check.rb
+=begin
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+=end
+
+require 'rubygems'
+require 'serialport'
+require 'getopt/std'
+
+$buffer_size = 0 # set automatically in init_system
+$conffile_check = Hash.new
+$conffile_check.default = 0
+$debug = false
+$logfile = nil
+
+################################################################################
+# readconfigfile #
+################################################################################
+
+def read_line_from_device()
+ repeat_counter = 10000
+ l = nil
+ s = ''
+ begin
+ l = $sp.gets()
+ repeat_counter -= 1
+ end while !l && repeat_counter > 0
+ t = Time.new
+ $logfile.printf("DBG: (%02d:%02d:%02d)<< %s\n", t.hour, t.min, t.sec, l.inspect) if $debug
+ if l && l.include?("AVR-Crypto-Lib")
+ $logfile.printf("DBG: system crashed !!!\n")
+ exit(false)
+ end
+ return l
+end
+
+def readconfigfile(fname, conf)
+ return conf if $conffile_check[fname]==1
+ $conffile_check[fname]=1
+ section = "default"
+ if not File.exists?(fname)
+ return conf
+ end
+ file = File.open(fname, "r")
+ until file.eof
+ line = file.gets()
+ next if /[\s]*#/.match(line)
+ if m=/\[[\s]*([^\s]*)[\s]*\]/.match(line)
+ section=m[1]
+ conf[m[1]] = Hash.new
+ next
+ end
+ next if ! /=/.match(line)
+ m=/[\s]*([^\s]*)[\s]*=[\s]*([^\s]*)/.match(line)
+ if m[1]=="include"
+ Dir.glob(m[2]){ |fn| conf = readconfigfile(fn, conf) }
+ else
+ conf[section][m[1]] = m[2]
+ end
+ end
+ file.close()
+ return conf
+end
+
+################################################################################
+# reset_system #
+################################################################################
+
+def reset_system
+ $sp.print("\r")
+ sleep 0.1
+ $sp.print("\r")
+ sleep 0.1
+ $sp.print("echo off\r")
+ sleep 0.1
+end
+
+
+def read_block(f)
+ d = Array.new
+ begin
+ l = f.gets
+ x = l.split.collect { |e| e.to_i(16) }
+ d += x
+ end while x.length == 16
+ return d
+end
+
+=begin
+# Modulus:
+# Exponent:
+# Modulus:
+# Public exponent:
+# Exponent:
+# Prime 1:
+# Prime 2:
+# Prime exponent 1:
+# Prime exponent 2:
+# Coefficient:
+# Message:
+# Seed:
+# Encryption:
+
+=end
+
+def get_next_block(f)
+ ret = Hash.new
+ data = Array.new
+ begin
+ l = f.gets
+ end while l && ! m= l.match(/^#[\s](.*):[\s]*$/)
+ return nil if ! l
+ ret['tag'] = m[1]
+ ret['line'] = f.lineno
+ data = read_block(f)
+ ret['data'] = data
+ return ret
+end
+
+$key_sequence = [
+ 'Modulus', # 0
+ 'Exponent', # 1
+ 'Modulus', # 2
+ 'Public exponent', # 3
+ 'Exponent', # 4
+ 'Prime 1', # 5
+ 'Prime 2', # 6
+ 'Prime exponent 1', # 7
+ 'Prime exponent 2', # 8
+ 'Coefficient', # 9
+]
+
+def key_consitency_check(k)
+ return true
+end
+
+def process_file(f, skip_key=1, skip_vec=1)
+ a = get_next_block(f)
+ key_no = 0
+ ok_counter = 0
+ fail_counter = 0
+ begin
+ if !a || ! a['tag'] == 'Modulus'
+ printf("ERROR: a = %s %d\n", a.inspect, __LINE__)
+ return
+ end
+ k_seq = Array.new
+ k_seq[0] = a
+ (1..($key_sequence.length-1)).each do |i|
+ a = get_next_block(f)
+ if ! a || a['tag'] != $key_sequence[i]
+ printf("ERROR: (expecting: %s) a = %s %d\n", $key_sequence[i], a.inspect, __LINE__)
+ end
+ k_seq[i] = a
+ end
+ key = convert_key(k_seq)
+ printf("ERROR: %d\n", __LINE__) if ! key
+ key_no += 1
+ vec_no = 0
+ printf("\n run %3d: ", key_no)
+ skip_key_flag = (key_no < skip_key)
+ load_key(key) if ! skip_key_flag
+ test_seq = Array.new
+ a = get_next_block(f)
+ printf("ERROR: %d\n", __LINE__) if ! a
+ begin
+ vec_no += 1
+ b = get_next_block(f)
+ c = get_next_block(f)
+ tv = Hash.new
+ tv['msg'] = a['data']
+ tv['seed'] = b['data']
+ tv['enc'] = c['data']
+ skip_vec_flag = (skip_key_flag || (key_no == skip_key && vec_no < skip_vec))
+ if skip_vec_flag
+ printf('o')
+ else
+ v = check_tv(tv)
+ if(v == true)
+ printf('*')
+ $logfile.printf("[[Test %2d.%02d = OK]]\n", key_no, vec_no)
+ ok_counter += 1
+ else
+ printf('%c', v ? '*' : '!')
+ $logfile.printf("[[Test %2d.%02d = FAIL]]\n", key_no, vec_no)
+ fail_counter += 1
+ end
+ end
+ a = get_next_block(f)
+ end while a && a['tag'] == 'Message'
+ end while a && a['tag'] = 'Modulus'
+# printf("\nResult: %d OK / %d FAIL ==> %s \nFinished\n", ok_counter, fail_counter, fail_counter==0 ? ':-)' : ':-(')
+ return ok_counter,fail_counter
+end
+
+def convert_key(k_seq)
+ l = ['n', 'e', 'd', 'p', 'q', 'dP', 'dQ', 'qInv']
+ r = Hash.new
+ return nil if k_seq[0]['data'] != k_seq[2]['data']
+ return nil if k_seq[1]['data'] != k_seq[3]['data']
+ 8.times do |i|
+ r[l[i]] = k_seq[2 + i]['data']
+ end
+ return r
+end
+
+def wait_for_dot
+ begin
+ s = $sp.gets()
+ end while !s || !s.include?('.')
+end
+
+def load_bigint(d)
+ $sp.printf("%d\r", d.length)
+ while l = read_line_from_device()
+ break if /data:/.match(l)
+ end
+ printf "ERROR: got no answer from system!" if !l
+ i = 0
+ d.each do |e|
+ $sp.printf("%02x", e)
+ i += 1
+ if i % 60 == 0
+# we should now wait for incomming dot
+ wait_for_dot()
+ print('.')
+ end
+ end
+end
+
+def hexdump(a)
+ i = 0
+ a.each do |e|
+ printf("\n\t") if i % 16 == 0
+ printf('%02x ', e)
+ i += 1
+ end
+ puts('') if i % 16 != 1
+end
+
+def str_hexdump(a)
+ i = 0
+ s = ''
+ a.each do |e|
+ s += "\n\t" if i % 16 == 0
+ s += sprintf('%02x ', e)
+ i += 1
+ end
+ s += "\n" if i % 16 != 1
+ return s
+end
+
+def load_key(k)
+ $sp.print("load-key\r")
+ sleep 0.1
+ v = ['n', 'e', 'p', 'q', 'dP', 'dQ', 'qInv']
+ v.each do |e|
+ load_bigint(k[e])
+ $logfile.printf("DBG: loaded %s\n", e) if $debug
+ end
+ while l = read_line_from_device()
+ break if />/.match(l)
+ end
+end
+
+def strip_leading_zeros(a)
+ loop do
+ return [] if a.length == 0
+ return a if a[0] != 0
+ a.delete_at(0)
+ end
+end
+
+def check_tv(tv)
+ sleep 0.1
+ $sp.print("seed-test\r")
+ sleep 0.1
+ load_bigint(tv['msg'])
+ $logfile.printf("DBG: loaded %s\n", 'msg') if $debug
+ sleep 0.1
+ tv['seed'].each { |e| $sp.printf(" %02x", e) }
+ while l = read_line_from_device()
+ break if /ciphertext:/.match(l)
+ end
+ test_enc = ''
+ loop do
+ l = read_line_from_device()
+ break if ! /([0-9A-Fa-f]{2}\s*)+/.match(l)
+ test_enc += l if l
+ end
+ test_enc_a = Array.new
+ test_enc = test_enc.split(/[\W\r\n]+/)
+ test_enc.each do |e|
+ v = e.sub(/[^0-9A-Fa-f]/, '')
+ test_enc_a << v if v.length == 2
+ end
+ test_enc_a.collect!{ |e| e.to_i(16) }
+ strip_leading_zeros(test_enc_a)
+ strip_leading_zeros(tv['enc'])
+ enc_ok = (test_enc_a == tv['enc'])
+ if !enc_ok
+ $logfile.printf("DBG: ref = %s test = %s\n", str_hexdump(tv['enc']) , str_hexdump(test_enc_a))
+ end
+ m = nil
+ loop do
+ l = read_line_from_device()
+ m = /(>>OK<<|ERROR)/.match(l)
+ break if m
+ end
+ return true if enc_ok && (m[1] == '>>OK<<')
+ return false
+end
+
+########################################
+# MAIN
+########################################
+
+
+opts = Getopt::Std.getopts('dc:f:il:s:')
+
+conf = Hash.new
+conf = readconfigfile("/etc/testport.conf", conf)
+conf = readconfigfile("~/.testport.conf", conf)
+conf = readconfigfile("testport.conf", conf)
+conf = readconfigfile(opts["c"], conf) if opts["c"]
+
+#puts conf.inspect
+
+puts("serial port interface version: " + SerialPort::VERSION);
+$linewidth = 64
+params = { "baud" => conf["PORT"]["baud"].to_i,
+ "data_bits" => conf["PORT"]["databits"].to_i,
+ "stop_bits" => conf["PORT"]["stopbits"].to_i,
+ "parity" => SerialPort::NONE }
+params["paraty"] = SerialPort::ODD if conf["PORT"]["paraty"].downcase == "odd"
+params["paraty"] = SerialPort::EVEN if conf["PORT"]["paraty"].downcase == "even"
+params["paraty"] = SerialPort::MARK if conf["PORT"]["paraty"].downcase == "mark"
+params["paraty"] = SerialPort::SPACE if conf["PORT"]["paraty"].downcase == "space"
+
+puts("\nPort: "+conf["PORT"]["port"]+"@" +
+ params["baud"].to_s +
+ " " +
+ params["data_bits"].to_s +
+ conf["PORT"]["paraty"][0,1].upcase +
+ params["stop_bits"].to_s +
+ "\n")
+
+$sp = SerialPort.new(conf["PORT"]["port"], params)
+
+$sp.read_timeout=1000; # 5 minutes
+$sp.flow_control = SerialPort::SOFT
+
+$debug = true if opts['d']
+
+if opts['l']
+ $logfile = File.open(opts['l'], 'w')
+end
+
+$logfile = STDOUT if ! $logfile
+reset_system()
+
+if opts['s'] && m = opts['s'].match(/([\d]+\.([\d]+))/)
+ sk = m[1].to_i
+ sv = m[2].to_i
+else
+ sk = 1
+ sv = 1
+end
+
+f = File.open(opts['f'], "r")
+exit if !f
+ok,fail = process_file(f,sk,sv)
+printf("\nOK: %d FAIL: %d :-%s\n",ok,fail, fail==0 ? ')':'(')
+
+
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