added rsa pkcs#1 v1.5 encryption
This commit is contained in:
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parent
38e12ca0d3
commit
06d9213f13
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@ -0,0 +1,390 @@
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#!/usr/bin/ruby
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# rsa_pkcs15_check.rb
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=begin
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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=end
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require 'rubygems'
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require 'serialport'
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require 'getopt/std'
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$buffer_size = 0 # set automatically in init_system
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$conffile_check = Hash.new
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$conffile_check.default = 0
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$debug = false
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$logfile = nil
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################################################################################
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# readconfigfile #
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################################################################################
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def read_line_from_device()
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repeat_counter = 10000
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l = nil
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s = ''
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begin
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l = $sp.gets()
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repeat_counter -= 1
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end while !l && repeat_counter > 0
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t = Time.new
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$logfile.printf("DBG: (%02d:%02d:%02d)<< %s\n", t.hour, t.min, t.sec, l.inspect) if $debug
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if l && l.include?("AVR-Crypto-Lib")
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$logfile.printf("DBG: system crashed !!!\n")
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exit(false)
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end
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return l
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end
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def readconfigfile(fname, conf)
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return conf if $conffile_check[fname]==1
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$conffile_check[fname]=1
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section = "default"
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if not File.exists?(fname)
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return conf
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end
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file = File.open(fname, "r")
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until file.eof
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line = file.gets()
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next if /[\s]*#/.match(line)
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if m=/\[[\s]*([^\s]*)[\s]*\]/.match(line)
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section=m[1]
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conf[m[1]] = Hash.new
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next
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end
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next if ! /=/.match(line)
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m=/[\s]*([^\s]*)[\s]*=[\s]*([^\s]*)/.match(line)
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if m[1]=="include"
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Dir.glob(m[2]){ |fn| conf = readconfigfile(fn, conf) }
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else
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conf[section][m[1]] = m[2]
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end
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end
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file.close()
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return conf
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end
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################################################################################
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# reset_system #
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################################################################################
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def reset_system
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$sp.print("\r")
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sleep 0.1
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$sp.print("\r")
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sleep 0.1
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$sp.print("echo off\r")
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sleep 0.1
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end
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def read_block(f)
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d = Array.new
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begin
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l = f.gets
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x = l.split.collect { |e| e.to_i(16) }
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d += x
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end while x.length == 16
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return d
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end
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=begin
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# Modulus:
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# Exponent:
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# Modulus:
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# Public exponent:
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# Exponent:
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# Prime 1:
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# Prime 2:
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# Prime exponent 1:
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# Prime exponent 2:
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# Coefficient:
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# Message:
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# Seed:
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# Encryption:
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=end
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def get_next_block(f)
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ret = Hash.new
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data = Array.new
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begin
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l = f.gets
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end while l && ! m= l.match(/^#[\s](.*):[\s]*$/)
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return nil if ! l
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ret['tag'] = m[1]
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ret['line'] = f.lineno
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data = read_block(f)
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ret['data'] = data
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return ret
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end
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$key_sequence = [
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'Modulus', # 0
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'Exponent', # 1
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'Modulus', # 2
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'Public exponent', # 3
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'Exponent', # 4
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'Prime 1', # 5
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'Prime 2', # 6
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'Prime exponent 1', # 7
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'Prime exponent 2', # 8
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'Coefficient', # 9
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]
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def key_consitency_check(k)
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return true
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end
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def process_file(f, skip_key=1, skip_vec=1)
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a = get_next_block(f)
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key_no = 0
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ok_counter = 0
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fail_counter = 0
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begin
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if !a || ! a['tag'] == 'Modulus'
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printf("ERROR: a = %s %d\n", a.inspect, __LINE__)
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return
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end
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k_seq = Array.new
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k_seq[0] = a
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(1..($key_sequence.length-1)).each do |i|
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a = get_next_block(f)
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if ! a || a['tag'] != $key_sequence[i]
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printf("ERROR: (expecting: %s) a = %s %d\n", $key_sequence[i], a.inspect, __LINE__)
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end
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k_seq[i] = a
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end
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key = convert_key(k_seq)
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printf("ERROR: %d\n", __LINE__) if ! key
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key_no += 1
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vec_no = 0
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printf("\n run %3d: ", key_no)
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skip_key_flag = (key_no < skip_key)
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load_key(key) if ! skip_key_flag
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test_seq = Array.new
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a = get_next_block(f)
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printf("ERROR: %d\n", __LINE__) if ! a
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begin
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vec_no += 1
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b = get_next_block(f)
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c = get_next_block(f)
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tv = Hash.new
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tv['msg'] = a['data']
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tv['seed'] = b['data']
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tv['enc'] = c['data']
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skip_vec_flag = (skip_key_flag || (key_no == skip_key && vec_no < skip_vec))
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if skip_vec_flag
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printf('o')
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else
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v = check_tv(tv)
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if(v == true)
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printf('*')
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$logfile.printf("[[Test %2d.%02d = OK]]\n", key_no, vec_no)
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ok_counter += 1
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else
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printf('%c', v ? '*' : '!')
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$logfile.printf("[[Test %2d.%02d = FAIL]]\n", key_no, vec_no)
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fail_counter += 1
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end
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end
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a = get_next_block(f)
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end while a && a['tag'] == 'Message'
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end while a && a['tag'] = 'Modulus'
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# printf("\nResult: %d OK / %d FAIL ==> %s \nFinished\n", ok_counter, fail_counter, fail_counter==0 ? ':-)' : ':-(')
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return ok_counter,fail_counter
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end
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def convert_key(k_seq)
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l = ['n', 'e', 'd', 'p', 'q', 'dP', 'dQ', 'qInv']
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r = Hash.new
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return nil if k_seq[0]['data'] != k_seq[2]['data']
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return nil if k_seq[1]['data'] != k_seq[3]['data']
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8.times do |i|
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r[l[i]] = k_seq[2 + i]['data']
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end
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return r
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end
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def wait_for_dot
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begin
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s = $sp.gets()
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end while !s || !s.include?('.')
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end
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def load_bigint(d)
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$sp.printf("%d\r", d.length)
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while l = read_line_from_device()
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break if /data:/.match(l)
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end
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printf "ERROR: got no answer from system!" if !l
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i = 0
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d.each do |e|
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$sp.printf("%02x", e)
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i += 1
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if i % 60 == 0
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# we should now wait for incomming dot
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wait_for_dot()
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print('.')
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end
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end
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end
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def hexdump(a)
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i = 0
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a.each do |e|
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printf("\n\t") if i % 16 == 0
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printf('%02x ', e)
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i += 1
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end
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puts('') if i % 16 != 1
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end
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def str_hexdump(a)
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i = 0
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s = ''
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a.each do |e|
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s += "\n\t" if i % 16 == 0
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s += sprintf('%02x ', e)
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i += 1
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end
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s += "\n" if i % 16 != 1
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return s
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end
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def load_key(k)
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$sp.print("load-key\r")
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sleep 0.1
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v = ['n', 'e', 'p', 'q', 'dP', 'dQ', 'qInv']
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v.each do |e|
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load_bigint(k[e])
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$logfile.printf("DBG: loaded %s\n", e) if $debug
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end
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while l = read_line_from_device()
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break if />/.match(l)
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end
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end
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def strip_leading_zeros(a)
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loop do
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return [] if a.length == 0
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return a if a[0] != 0
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a.delete_at(0)
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end
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end
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def check_tv(tv)
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sleep 0.1
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$sp.print("seed-test\r")
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sleep 0.1
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load_bigint(tv['msg'])
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$logfile.printf("DBG: loaded %s\n", 'msg') if $debug
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sleep 0.1
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tv['seed'].each { |e| $sp.printf(" %02x", e) }
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while l = read_line_from_device()
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break if /ciphertext:/.match(l)
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end
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test_enc = ''
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loop do
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l = read_line_from_device()
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break if ! /([0-9A-Fa-f]{2}\s*)+/.match(l)
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test_enc += l if l
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end
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test_enc_a = Array.new
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test_enc = test_enc.split(/[\W\r\n]+/)
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test_enc.each do |e|
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v = e.sub(/[^0-9A-Fa-f]/, '')
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test_enc_a << v if v.length == 2
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end
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test_enc_a.collect!{ |e| e.to_i(16) }
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strip_leading_zeros(test_enc_a)
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strip_leading_zeros(tv['enc'])
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enc_ok = (test_enc_a == tv['enc'])
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if !enc_ok
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$logfile.printf("DBG: ref = %s test = %s\n", str_hexdump(tv['enc']) , str_hexdump(test_enc_a))
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end
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m = nil
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loop do
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l = read_line_from_device()
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m = /(>>OK<<|ERROR)/.match(l)
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break if m
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end
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return true if enc_ok && (m[1] == '>>OK<<')
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return false
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end
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########################################
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# MAIN
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########################################
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opts = Getopt::Std.getopts('dc:f:il:s:')
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conf = Hash.new
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conf = readconfigfile("/etc/testport.conf", conf)
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conf = readconfigfile("~/.testport.conf", conf)
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conf = readconfigfile("testport.conf", conf)
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conf = readconfigfile(opts["c"], conf) if opts["c"]
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#puts conf.inspect
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puts("serial port interface version: " + SerialPort::VERSION);
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$linewidth = 64
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params = { "baud" => conf["PORT"]["baud"].to_i,
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"data_bits" => conf["PORT"]["databits"].to_i,
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"stop_bits" => conf["PORT"]["stopbits"].to_i,
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"parity" => SerialPort::NONE }
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params["paraty"] = SerialPort::ODD if conf["PORT"]["paraty"].downcase == "odd"
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params["paraty"] = SerialPort::EVEN if conf["PORT"]["paraty"].downcase == "even"
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params["paraty"] = SerialPort::MARK if conf["PORT"]["paraty"].downcase == "mark"
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params["paraty"] = SerialPort::SPACE if conf["PORT"]["paraty"].downcase == "space"
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puts("\nPort: "+conf["PORT"]["port"]+"@" +
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params["baud"].to_s +
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" " +
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params["data_bits"].to_s +
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conf["PORT"]["paraty"][0,1].upcase +
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params["stop_bits"].to_s +
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"\n")
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$sp = SerialPort.new(conf["PORT"]["port"], params)
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$sp.read_timeout=1000; # 5 minutes
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$sp.flow_control = SerialPort::SOFT
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$debug = true if opts['d']
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if opts['l']
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$logfile = File.open(opts['l'], 'w')
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end
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$logfile = STDOUT if ! $logfile
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reset_system()
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if opts['s'] && m = opts['s'].match(/([\d]+\.([\d]+))/)
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sk = m[1].to_i
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sv = m[2].to_i
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else
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sk = 1
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sv = 1
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end
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f = File.open(opts['f'], "r")
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exit if !f
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ok,fail = process_file(f,sk,sv)
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printf("\nOK: %d FAIL: %d :-%s\n",ok,fail, fail==0 ? ')':'(')
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@ -0,0 +1,14 @@
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# Makefile for RSA
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ALGO_NAME := RSA_PKCS15
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# comment out the following line for removement of RSA from the build process
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SIGNATURE += $(ALGO_NAME)
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$(ALGO_NAME)_DIR := rsa/
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$(ALGO_NAME)_INCDIR := memxor/ bigint/ noekeon/
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$(ALGO_NAME)_OBJ := bigint.o bigint_io.o rsa_basic.o rsa_pkcs15.o
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$(ALGO_NAME)_TESTBIN := main-rsa_pkcs15-test.o $(CLI_STD) random_dummy.o \
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noekeon.o noekeon_prng.o memxor.o
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$(ALGO_NAME)_PERFORMANCE_TEST := performance
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@ -0,0 +1,134 @@
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/* rsa_pkcs15.c */
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/*
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This file is part of the ARM-Crypto-Lib.
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Copyright (C) 2006-2011 Daniel Otte (daniel.otte@rub.de)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "bigint.h"
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#include "rsa_basic.h"
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#define DEBUG 0
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#if DEBUG
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#include "bigint_io.h"
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#include "cli.h"
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#endif
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#include "random_dummy.h"
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uint16_t rsa_pkcs15_compute_padlength_B(bigint_t* modulus, uint16_t msg_length_B){
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return bigint_get_first_set_bit(modulus) / 8 + 1 - msg_length_B - 3;
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}
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uint8_t rsa_encrypt_pkcs15(void* dest, uint16_t* out_length, const void* src,
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uint16_t length_B, rsa_publickey_t* key, const void* pad){
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int16_t pad_length;
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bigint_t x;
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pad_length = rsa_pkcs15_compute_padlength_B(key->modulus, length_B);
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if(pad_length<8){
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#if DEBUG
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cli_putstr_P(PSTR("\r\nERROR: pad_length<8; pad_length: "));
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cli_hexdump_rev(&pad_length, 2);
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#endif
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return 2; /* message to long */
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}
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if(!pad){
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#if DEBUG
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cli_putstr_P(PSTR("\r\nauto-generating pad ..."));
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#endif
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uint16_t i;
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uint8_t c;
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for(i=0; i<pad_length; ++i){
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do{
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c = prng_get_byte();
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}while(c==0);
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((uint8_t*)dest)[i+2] = c;
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}
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}else{
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#if DEBUG
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cli_putstr_P(PSTR("\r\nsupplied pad: "));
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cli_hexdump_block(pad, pad_length, 4, 16);
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#endif
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memcpy((uint8_t*)dest + 2, pad, pad_length);
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}
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((uint8_t*)dest)[0] = 0x00;
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((uint8_t*)dest)[1] = 0x02;
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((uint8_t*)dest)[2+pad_length] = 0x00;
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memcpy((uint8_t*)dest+3+pad_length, src, length_B);
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x.wordv = dest;
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x.length_B = (length_B+pad_length+3+sizeof(bigint_word_t)-1)/sizeof(bigint_word_t);
|
||||
#if DEBUG
|
||||
cli_putstr_P(PSTR("\r\nx-data: "));
|
||||
cli_hexdump_block(x.wordv, x.length_B * sizeof(bigint_word_t), 4, 16);
|
||||
#endif
|
||||
bigint_adjust(&x);
|
||||
rsa_os2ip(&x, NULL, length_B+pad_length+3);
|
||||
rsa_enc(&x, key);
|
||||
rsa_i2osp(NULL, &x, out_length);
|
||||
return 0;
|
||||
}
|
||||
|
||||
uint8_t rsa_decrypt_pkcs15(void* dest, uint16_t* out_length, const void* src,
|
||||
uint16_t length_B, rsa_privatekey_t* key, void* pad){
|
||||
bigint_t x;
|
||||
uint16_t m_length, pad_length=0, idx=0;
|
||||
x.wordv = dest;
|
||||
rsa_os2ip(&x, src, length_B);
|
||||
#if DEBUG
|
||||
cli_putstr_P(PSTR("\r\ncalling rsa_dec() ..."));
|
||||
#endif
|
||||
rsa_dec(&x, key);
|
||||
#if DEBUG
|
||||
cli_putstr_P(PSTR("\r\nfinished rsa_dec() ..."));
|
||||
#endif
|
||||
rsa_i2osp(NULL, &x, &m_length);
|
||||
#if DEBUG
|
||||
cli_putstr_P(PSTR("\r\ndecoded block:"));
|
||||
cli_hexdump_block(x.wordv, m_length, 4, 16);
|
||||
#endif
|
||||
while(((uint8_t*)x.wordv)[idx]==0 && idx<m_length){
|
||||
++idx;
|
||||
}
|
||||
if(((uint8_t*)x.wordv)[idx]!=2 || idx>=m_length){
|
||||
return 1;
|
||||
}
|
||||
++idx;
|
||||
while(((uint8_t*)x.wordv)[idx+pad_length]!=0 && (idx+pad_length)<m_length){
|
||||
++pad_length;
|
||||
}
|
||||
if(pad_length<8 || (idx+pad_length)>=m_length){
|
||||
return 2;
|
||||
}
|
||||
*out_length = m_length - idx - pad_length - 1;
|
||||
if(pad){
|
||||
#if DEBUG
|
||||
cli_putstr_P(PSTR("\r\npadding block:"));
|
||||
cli_hexdump_block(((uint8_t*)x.wordv)+idx, pad_length, 4, 16);
|
||||
cli_putstr_P(PSTR("\r\npad @ 0x"));
|
||||
cli_hexdump_rev(&pad, 2);
|
||||
cli_putstr_P(PSTR("\r\ndst @ 0x"));
|
||||
cli_hexdump_rev(&dest, 2);
|
||||
#endif
|
||||
memcpy(pad, ((uint8_t*)x.wordv)+idx, pad_length);
|
||||
}
|
||||
memmove(dest, ((uint8_t*)x.wordv) + idx + pad_length + 1, m_length - idx - pad_length - 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
/* rsa_pkcs15.h */
|
||||
/*
|
||||
This file is part of the AVR-Crypto-Lib.
|
||||
Copyright (C) 2011 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/>.
|
||||
*/
|
||||
|
||||
#ifndef RSA_PKCS15_H_
|
||||
#define RSA_PKCS15_H_
|
||||
|
||||
#include <stdint.h>
|
||||
#include "bigint.h"
|
||||
|
||||
uint16_t rsa_pkcs15_compute_padlength_B(bigint_t* modulus, uint16_t msg_length_B);
|
||||
|
||||
|
||||
uint8_t rsa_encrypt_pkcs15(void* dest, uint16_t* out_length, const void* src,
|
||||
uint16_t length_B, rsa_publickey_t* key, const void* pad);
|
||||
|
||||
uint8_t rsa_decrypt_pkcs15(void* dest, uint16_t* out_length, const void* src,
|
||||
uint16_t length_B, rsa_privatekey_t* key, void* pad);
|
||||
|
||||
#endif /* RSA_PKCS15_H_ */
|
||||
|
|
@ -0,0 +1,672 @@
|
|||
/* main-dsa-test.c */
|
||||
/*
|
||||
This file is part of the ARM-Crypto-Lib.
|
||||
Copyright (C) 2010 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/>.
|
||||
*/
|
||||
/*
|
||||
* RSA test-suit
|
||||
*
|
||||
*/
|
||||
#include "main-test-common.h"
|
||||
|
||||
#include "noekeon.h"
|
||||
#include "noekeon_prng.h"
|
||||
#include "bigint.h"
|
||||
#include "bigint_io.h"
|
||||
#include "random_dummy.h"
|
||||
#include "rsa_basic.h"
|
||||
#include "rsa_pkcs15.h"
|
||||
|
||||
#include "performance_test.h"
|
||||
|
||||
const char* algo_name = "RSA-PKCS15";
|
||||
|
||||
#define BIGINT_CEIL(x) ((((x) + sizeof(bigint_word_t) - 1) / sizeof(bigint_word_t)) * sizeof(bigint_word_t))
|
||||
#define BIGINT_OFF(x) ((sizeof(bigint_word_t) - (x) % sizeof(bigint_word_t)) % sizeof(bigint_word_t))
|
||||
|
||||
/*****************************************************************************
|
||||
* additional validation-functions *
|
||||
*****************************************************************************/
|
||||
|
||||
/* Modulus: */
|
||||
const uint8_t modulus[] PROGMEM = {
|
||||
0xa8, 0xb3, 0xb2, 0x84, 0xaf, 0x8e, 0xb5, 0x0b, 0x38, 0x70, 0x34, 0xa8, 0x60, 0xf1, 0x46, 0xc4,
|
||||
0x91, 0x9f, 0x31, 0x87, 0x63, 0xcd, 0x6c, 0x55, 0x98, 0xc8, 0xae, 0x48, 0x11, 0xa1, 0xe0, 0xab,
|
||||
0xc4, 0xc7, 0xe0, 0xb0, 0x82, 0xd6, 0x93, 0xa5, 0xe7, 0xfc, 0xed, 0x67, 0x5c, 0xf4, 0x66, 0x85,
|
||||
0x12, 0x77, 0x2c, 0x0c, 0xbc, 0x64, 0xa7, 0x42, 0xc6, 0xc6, 0x30, 0xf5, 0x33, 0xc8, 0xcc, 0x72,
|
||||
0xf6, 0x2a, 0xe8, 0x33, 0xc4, 0x0b, 0xf2, 0x58, 0x42, 0xe9, 0x84, 0xbb, 0x78, 0xbd, 0xbf, 0x97,
|
||||
0xc0, 0x10, 0x7d, 0x55, 0xbd, 0xb6, 0x62, 0xf5, 0xc4, 0xe0, 0xfa, 0xb9, 0x84, 0x5c, 0xb5, 0x14,
|
||||
0x8e, 0xf7, 0x39, 0x2d, 0xd3, 0xaa, 0xff, 0x93, 0xae, 0x1e, 0x6b, 0x66, 0x7b, 0xb3, 0xd4, 0x24,
|
||||
0x76, 0x16, 0xd4, 0xf5, 0xba, 0x10, 0xd4, 0xcf, 0xd2, 0x26, 0xde, 0x88, 0xd3, 0x9f, 0x16, 0xfb
|
||||
};
|
||||
|
||||
/* Public exponent: */
|
||||
const uint8_t pub_exponent[] PROGMEM = { 0x01, 0x00, 0x01 };
|
||||
|
||||
/* Exponent: */
|
||||
const uint8_t priv_exponent[] PROGMEM = {
|
||||
0x53, 0x33, 0x9c, 0xfd, 0xb7, 0x9f, 0xc8, 0x46, 0x6a, 0x65, 0x5c, 0x73, 0x16, 0xac, 0xa8, 0x5c,
|
||||
0x55, 0xfd, 0x8f, 0x6d, 0xd8, 0x98, 0xfd, 0xaf, 0x11, 0x95, 0x17, 0xef, 0x4f, 0x52, 0xe8, 0xfd,
|
||||
0x8e, 0x25, 0x8d, 0xf9, 0x3f, 0xee, 0x18, 0x0f, 0xa0, 0xe4, 0xab, 0x29, 0x69, 0x3c, 0xd8, 0x3b,
|
||||
0x15, 0x2a, 0x55, 0x3d, 0x4a, 0xc4, 0xd1, 0x81, 0x2b, 0x8b, 0x9f, 0xa5, 0xaf, 0x0e, 0x7f, 0x55,
|
||||
0xfe, 0x73, 0x04, 0xdf, 0x41, 0x57, 0x09, 0x26, 0xf3, 0x31, 0x1f, 0x15, 0xc4, 0xd6, 0x5a, 0x73,
|
||||
0x2c, 0x48, 0x31, 0x16, 0xee, 0x3d, 0x3d, 0x2d, 0x0a, 0xf3, 0x54, 0x9a, 0xd9, 0xbf, 0x7c, 0xbf,
|
||||
0xb7, 0x8a, 0xd8, 0x84, 0xf8, 0x4d, 0x5b, 0xeb, 0x04, 0x72, 0x4d, 0xc7, 0x36, 0x9b, 0x31, 0xde,
|
||||
0xf3, 0x7d, 0x0c, 0xf5, 0x39, 0xe9, 0xcf, 0xcd, 0xd3, 0xde, 0x65, 0x37, 0x29, 0xea, 0xd5, 0xd1
|
||||
};
|
||||
|
||||
/* Prime 1: */
|
||||
const uint8_t p[] PROGMEM = {
|
||||
0xd3, 0x27, 0x37, 0xe7, 0x26, 0x7f, 0xfe, 0x13, 0x41, 0xb2, 0xd5, 0xc0, 0xd1, 0x50, 0xa8, 0x1b,
|
||||
0x58, 0x6f, 0xb3, 0x13, 0x2b, 0xed, 0x2f, 0x8d, 0x52, 0x62, 0x86, 0x4a, 0x9c, 0xb9, 0xf3, 0x0a,
|
||||
0xf3, 0x8b, 0xe4, 0x48, 0x59, 0x8d, 0x41, 0x3a, 0x17, 0x2e, 0xfb, 0x80, 0x2c, 0x21, 0xac, 0xf1,
|
||||
0xc1, 0x1c, 0x52, 0x0c, 0x2f, 0x26, 0xa4, 0x71, 0xdc, 0xad, 0x21, 0x2e, 0xac, 0x7c, 0xa3, 0x9d
|
||||
};
|
||||
|
||||
/* Prime 2: */
|
||||
const uint8_t q[] PROGMEM = {
|
||||
0xcc, 0x88, 0x53, 0xd1, 0xd5, 0x4d, 0xa6, 0x30, 0xfa, 0xc0, 0x04, 0xf4, 0x71, 0xf2, 0x81, 0xc7,
|
||||
0xb8, 0x98, 0x2d, 0x82, 0x24, 0xa4, 0x90, 0xed, 0xbe, 0xb3, 0x3d, 0x3e, 0x3d, 0x5c, 0xc9, 0x3c,
|
||||
0x47, 0x65, 0x70, 0x3d, 0x1d, 0xd7, 0x91, 0x64, 0x2f, 0x1f, 0x11, 0x6a, 0x0d, 0xd8, 0x52, 0xbe,
|
||||
0x24, 0x19, 0xb2, 0xaf, 0x72, 0xbf, 0xe9, 0xa0, 0x30, 0xe8, 0x60, 0xb0, 0x28, 0x8b, 0x5d, 0x77
|
||||
};
|
||||
|
||||
/* Prime exponent 1: */
|
||||
const uint8_t dp[] PROGMEM = {
|
||||
0x0e, 0x12, 0xbf, 0x17, 0x18, 0xe9, 0xce, 0xf5, 0x59, 0x9b, 0xa1, 0xc3, 0x88, 0x2f, 0xe8, 0x04,
|
||||
0x6a, 0x90, 0x87, 0x4e, 0xef, 0xce, 0x8f, 0x2c, 0xcc, 0x20, 0xe4, 0xf2, 0x74, 0x1f, 0xb0, 0xa3,
|
||||
0x3a, 0x38, 0x48, 0xae, 0xc9, 0xc9, 0x30, 0x5f, 0xbe, 0xcb, 0xd2, 0xd7, 0x68, 0x19, 0x96, 0x7d,
|
||||
0x46, 0x71, 0xac, 0xc6, 0x43, 0x1e, 0x40, 0x37, 0x96, 0x8d, 0xb3, 0x78, 0x78, 0xe6, 0x95, 0xc1
|
||||
};
|
||||
|
||||
/* Prime exponent 2: */
|
||||
const uint8_t dq[] PROGMEM = {
|
||||
0x95, 0x29, 0x7b, 0x0f, 0x95, 0xa2, 0xfa, 0x67, 0xd0, 0x07, 0x07, 0xd6, 0x09, 0xdf, 0xd4, 0xfc,
|
||||
0x05, 0xc8, 0x9d, 0xaf, 0xc2, 0xef, 0x6d, 0x6e, 0xa5, 0x5b, 0xec, 0x77, 0x1e, 0xa3, 0x33, 0x73,
|
||||
0x4d, 0x92, 0x51, 0xe7, 0x90, 0x82, 0xec, 0xda, 0x86, 0x6e, 0xfe, 0xf1, 0x3c, 0x45, 0x9e, 0x1a,
|
||||
0x63, 0x13, 0x86, 0xb7, 0xe3, 0x54, 0xc8, 0x99, 0xf5, 0xf1, 0x12, 0xca, 0x85, 0xd7, 0x15, 0x83
|
||||
};
|
||||
|
||||
/* Coefficient: */
|
||||
const uint8_t qinv[] PROGMEM = {
|
||||
0x4f, 0x45, 0x6c, 0x50, 0x24, 0x93, 0xbd, 0xc0, 0xed, 0x2a, 0xb7, 0x56, 0xa3, 0xa6, 0xed, 0x4d,
|
||||
0x67, 0x35, 0x2a, 0x69, 0x7d, 0x42, 0x16, 0xe9, 0x32, 0x12, 0xb1, 0x27, 0xa6, 0x3d, 0x54, 0x11,
|
||||
0xce, 0x6f, 0xa9, 0x8d, 0x5d, 0xbe, 0xfd, 0x73, 0x26, 0x3e, 0x37, 0x28, 0x14, 0x27, 0x43, 0x81,
|
||||
0x81, 0x66, 0xed, 0x7d, 0xd6, 0x36, 0x87, 0xdd, 0x2a, 0x8c, 0xa1, 0xd2, 0xf4, 0xfb, 0xd8, 0xe1
|
||||
};
|
||||
|
||||
/* PKCS#1 v1.5 encryption of 0x20, random messages with random s0xee,ds
|
||||
* ---------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
/* Message: */
|
||||
const uint8_t message_x[] PROGMEM = {
|
||||
0x66, 0x28, 0x19, 0x4e, 0x12, 0x07, 0x3d, 0xb0, 0x3b, 0xa9, 0x4c, 0xda, 0x9e, 0xf9, 0x53, 0x23,
|
||||
0x97, 0xd5, 0x0d, 0xba, 0x79, 0xb9, 0x87, 0x00, 0x4a, 0xfe, 0xfe, 0x34
|
||||
};
|
||||
|
||||
/* Seed: */
|
||||
const uint8_t seed_x[] PROGMEM = {
|
||||
0x01, 0x73, 0x41, 0xae, 0x38, 0x75, 0xd5, 0xf8, 0x71, 0x01, 0xf8, 0xcc, 0x4f, 0xa9, 0xb9, 0xbc,
|
||||
0x15, 0x6b, 0xb0, 0x46, 0x28, 0xfc, 0xcd, 0xb2, 0xf4, 0xf1, 0x1e, 0x90, 0x5b, 0xd3, 0xa1, 0x55,
|
||||
0xd3, 0x76, 0xf5, 0x93, 0xbd, 0x73, 0x04, 0x21, 0x08, 0x74, 0xeb, 0xa0, 0x8a, 0x5e, 0x22, 0xbc,
|
||||
0xcc, 0xb4, 0xc9, 0xd3, 0x88, 0x2a, 0x93, 0xa5, 0x4d, 0xb0, 0x22, 0xf5, 0x03, 0xd1, 0x63, 0x38,
|
||||
0xb6, 0xb7, 0xce, 0x16, 0xdc, 0x7f, 0x4b, 0xbf, 0x9a, 0x96, 0xb5, 0x97, 0x72, 0xd6, 0x60, 0x6e,
|
||||
0x97, 0x47, 0xc7, 0x64, 0x9b, 0xf9, 0xe0, 0x83, 0xdb, 0x98, 0x18, 0x84, 0xa9, 0x54, 0xab, 0x3c,
|
||||
0x6f };
|
||||
|
||||
/* Encryption: */
|
||||
const uint8_t encrypted_x[] PROGMEM = {
|
||||
0x50, 0xb4, 0xc1, 0x41, 0x36, 0xbd, 0x19, 0x8c, 0x2f, 0x3c, 0x3e, 0xd2, 0x43, 0xfc, 0xe0, 0x36,
|
||||
0xe1, 0x68, 0xd5, 0x65, 0x17, 0x98, 0x4a, 0x26, 0x3c, 0xd6, 0x64, 0x92, 0xb8, 0x08, 0x04, 0xf1,
|
||||
0x69, 0xd2, 0x10, 0xf2, 0xb9, 0xbd, 0xfb, 0x48, 0xb1, 0x2f, 0x9e, 0xa0, 0x50, 0x09, 0xc7, 0x7d,
|
||||
0xa2, 0x57, 0xcc, 0x60, 0x0c, 0xce, 0xfe, 0x3a, 0x62, 0x83, 0x78, 0x9d, 0x8e, 0xa0, 0xe6, 0x07,
|
||||
0xac, 0x58, 0xe2, 0x69, 0x0e, 0xc4, 0xeb, 0xc1, 0x01, 0x46, 0xe8, 0xcb, 0xaa, 0x5e, 0xd4, 0xd5,
|
||||
0xcc, 0xe6, 0xfe, 0x7b, 0x0f, 0xf9, 0xef, 0xc1, 0xea, 0xbb, 0x56, 0x4d, 0xbf, 0x49, 0x82, 0x85,
|
||||
0xf4, 0x49, 0xee, 0x61, 0xdd, 0x7b, 0x42, 0xee, 0x5b, 0x58, 0x92, 0xcb, 0x90, 0x60, 0x1f, 0x30,
|
||||
0xcd, 0xa0, 0x7b, 0xf2, 0x64, 0x89, 0x31, 0x0b, 0xcd, 0x23, 0xb5, 0x28, 0xce, 0xab, 0x3c, 0x31
|
||||
};
|
||||
|
||||
uint8_t keys_allocated = 0;
|
||||
rsa_publickey_t pub_key;
|
||||
rsa_privatekey_t priv_key;
|
||||
|
||||
#if 1
|
||||
#define MSG message_x
|
||||
#define SEED seed_x
|
||||
#define ENCRYPTED encrypted_x
|
||||
#define MODULUS modulus
|
||||
#define PUB_EXPONENT pub_exponent
|
||||
#define PRIV_EXPONENT priv_exponent
|
||||
#define P p
|
||||
#define Q q
|
||||
#define DP dp
|
||||
#define DQ dq
|
||||
#define QINV qinv
|
||||
#endif
|
||||
|
||||
|
||||
uint8_t convert_nibble(uint8_t c){
|
||||
if(c>='0' && c<='9'){
|
||||
return c - '0';
|
||||
}
|
||||
c |= 'A' ^ 'a';
|
||||
if(c>='a' && c<='f'){
|
||||
return c - 'a' + 10;
|
||||
}
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
const char *block_ignore_string=" \t\r\n,;";
|
||||
#define BUFFER_LIMIT 120
|
||||
uint16_t read_os(void* dst, uint16_t length, const char* ignore_string){
|
||||
uint16_t counter = 0;
|
||||
uint16_t c;
|
||||
uint8_t v, tmp = 0, idx = 0;
|
||||
if(!ignore_string){
|
||||
ignore_string = block_ignore_string;
|
||||
}
|
||||
while(counter < length){
|
||||
c = cli_getc();
|
||||
if(c > 0xff){
|
||||
return counter;
|
||||
}
|
||||
if(strchr(ignore_string, c)){
|
||||
continue;
|
||||
}
|
||||
v = convert_nibble(c);
|
||||
if(v > 0x0f){
|
||||
return counter;
|
||||
}
|
||||
if(idx){
|
||||
((uint8_t*)dst)[counter++] = (tmp << 4) | v;
|
||||
idx = 0;
|
||||
if(counter % (BUFFER_LIMIT/2) == 0){
|
||||
cli_putc('.');
|
||||
}
|
||||
}else{
|
||||
tmp = v;
|
||||
idx = 1;
|
||||
}
|
||||
}
|
||||
return counter;
|
||||
}
|
||||
|
||||
uint16_t own_atou(const char* str){
|
||||
uint16_t r=0;
|
||||
while(*str && *str >= '0' && *str <= '9'){
|
||||
r *= 10;
|
||||
r += *str++ - '0';
|
||||
}
|
||||
return r;
|
||||
}
|
||||
|
||||
uint8_t read_bigint(bigint_t* a, char* prompt){
|
||||
uint16_t read_length, actual_length;
|
||||
uint8_t off;
|
||||
uint8_t *buffer;
|
||||
char read_int_str[18];
|
||||
cli_putstr(prompt);
|
||||
cli_putstr_P(PSTR("\r\n length: "));
|
||||
cli_getsn(read_int_str, 16);
|
||||
read_length = own_atou(read_int_str);
|
||||
off = (sizeof(bigint_word_t) - (read_length % sizeof(bigint_word_t))) % sizeof(bigint_word_t);
|
||||
buffer = malloc(((read_length + sizeof(bigint_word_t) - 1) / sizeof(bigint_word_t)) * sizeof(bigint_word_t));
|
||||
if(!buffer){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
cli_putstr_P(PSTR("\r\n data: "));
|
||||
memset(buffer, 0, sizeof(bigint_word_t));
|
||||
actual_length = read_os(buffer + off, read_length, NULL);
|
||||
if(actual_length != read_length){
|
||||
cli_putstr_P(PSTR("\r\nERROR: unexpected end of data!"));
|
||||
free(buffer);
|
||||
return 1;
|
||||
}
|
||||
a->wordv = (bigint_word_t*)buffer;
|
||||
a->length_B = (read_length + sizeof(bigint_word_t) - 1) / sizeof(bigint_word_t);
|
||||
bigint_changeendianess(a);
|
||||
bigint_adjust(a);
|
||||
return 0;
|
||||
}
|
||||
|
||||
uint8_t pre_alloc_key_crt(void){
|
||||
uint8_t c;
|
||||
pub_key.modulus = malloc(sizeof(bigint_t));
|
||||
if(!pub_key.modulus){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
priv_key.modulus = pub_key.modulus;
|
||||
priv_key.n = 5;
|
||||
priv_key.components = malloc(5 * sizeof(bigint_t*));
|
||||
if(!priv_key.components){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
pub_key.exponent = malloc(sizeof(bigint_t));
|
||||
if(!pub_key.exponent){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
for(c=0; c<5; ++c){
|
||||
priv_key.components[c] = malloc(sizeof(bigint_t));
|
||||
if(!priv_key.components[c]){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void free_key(void){
|
||||
uint8_t c;
|
||||
free(pub_key.modulus->wordv);
|
||||
free(pub_key.exponent->wordv);
|
||||
free(pub_key.modulus);
|
||||
pub_key.modulus = priv_key.modulus = NULL;
|
||||
free(pub_key.exponent);
|
||||
pub_key.exponent = NULL;
|
||||
for(c = 0; c < priv_key.n; ++c){
|
||||
free(priv_key.components[c]->wordv);
|
||||
free(priv_key.components[c]);
|
||||
}
|
||||
free(priv_key.components);
|
||||
priv_key.components = NULL;
|
||||
}
|
||||
|
||||
uint8_t read_key_crt(void){
|
||||
uint8_t r;
|
||||
cli_putstr_P(PSTR("\r\n== reading key (crt) =="));
|
||||
r = pre_alloc_key_crt();
|
||||
if(r) return r;
|
||||
r = read_bigint(pub_key.modulus,"\r\n = module =");
|
||||
if(r) return r;
|
||||
r = read_bigint(pub_key.exponent,"\r\n = public exponent =");
|
||||
if(r) return r;
|
||||
r = read_bigint(priv_key.components[0],"\r\n = p (first prime) =");
|
||||
if(r) return r;
|
||||
r = read_bigint(priv_key.components[1],"\r\n = q (second prime) =");
|
||||
if(r) return r;
|
||||
r = read_bigint(priv_key.components[2],"\r\n = dp (p's exponent) =");
|
||||
if(r) return r;
|
||||
r = read_bigint(priv_key.components[3],"\r\n = dq (q's exponent) =");
|
||||
if(r) return r;
|
||||
r = read_bigint(priv_key.components[4],"\r\n = qInv (q' coefficient) =");
|
||||
/*
|
||||
cli_putstr_P(PSTR("\r\nmodulus:"));
|
||||
bigint_print_hex(pub_key.modulus);
|
||||
cli_putstr_P(PSTR("\r\npublic exponent:"));
|
||||
bigint_print_hex(pub_key.exponent);
|
||||
cli_putstr_P(PSTR("\r\np:"));
|
||||
bigint_print_hex(priv_key.components[0]);
|
||||
cli_putstr_P(PSTR("\r\nq:"));
|
||||
bigint_print_hex(priv_key.components[1]);
|
||||
cli_putstr_P(PSTR("\r\ndP:"));
|
||||
bigint_print_hex(priv_key.components[2]);
|
||||
cli_putstr_P(PSTR("\r\ndQ:"));
|
||||
bigint_print_hex(priv_key.components[3]);
|
||||
cli_putstr_P(PSTR("\r\nqInv:"));
|
||||
bigint_print_hex(priv_key.components[4]);
|
||||
*/
|
||||
return r;
|
||||
}
|
||||
|
||||
uint8_t read_key_conv(void){
|
||||
uint8_t r;
|
||||
cli_putstr_P(PSTR("\r\n== reading key (crt) =="));
|
||||
pub_key.modulus = malloc(sizeof(bigint_t));
|
||||
if(!pub_key.modulus){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
r = read_bigint(pub_key.modulus,"\r\n = module =");
|
||||
if(r) return r;
|
||||
priv_key.modulus = pub_key.modulus;
|
||||
priv_key.n = 1;
|
||||
pub_key.exponent = malloc(sizeof(bigint_t));
|
||||
if(!pub_key.exponent){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
priv_key.components = malloc(sizeof(bigint_t*));
|
||||
if(!priv_key.components){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
priv_key.components[0] = malloc(sizeof(bigint_t));
|
||||
if(!priv_key.components[0]){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return 2;
|
||||
}
|
||||
r = read_bigint(pub_key.exponent,"\r\n = public exponent =");
|
||||
if(r) return r;
|
||||
r = read_bigint(priv_key.components[0],"\r\n = private exponent =");
|
||||
return r;
|
||||
}
|
||||
|
||||
void load_priv_conventional(void){
|
||||
bigint_t *epriv;
|
||||
epriv = malloc(sizeof(bigint_t));
|
||||
if(!epriv){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
epriv->length_B = (sizeof(PRIV_EXPONENT) + sizeof(bigint_word_t) - 1) / sizeof(bigint_word_t);
|
||||
epriv->wordv = malloc(epriv->length_B * sizeof(bigint_word_t));
|
||||
if(!epriv->wordv){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
memcpy(epriv->wordv, PRIV_EXPONENT, sizeof(PRIV_EXPONENT));
|
||||
priv_key.components = malloc(sizeof(bigint_t*));
|
||||
priv_key.components[0] = epriv;
|
||||
priv_key.n = 1;
|
||||
bigint_changeendianess(epriv);
|
||||
bigint_adjust(epriv);
|
||||
}
|
||||
|
||||
|
||||
void load_priv_crt_mono(void){
|
||||
bigint_t **v;
|
||||
const uint8_t *bv[5] = {P,Q,DP,DQ,QINV};
|
||||
uint16_t sv[5] = {sizeof(P), sizeof(Q), sizeof(DP), sizeof(DQ), sizeof(QINV)};
|
||||
uint8_t i;
|
||||
v = malloc(5 * sizeof(bigint_t));
|
||||
if(!v){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
priv_key.components = malloc(5*sizeof(bigint_t*));
|
||||
if(!priv_key.components){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
priv_key.n = 5;
|
||||
for(i=0; i<5; ++i){
|
||||
v[i] = malloc(sizeof(bigint_t));
|
||||
v[i]->info = 0;
|
||||
v[i]->length_B = (sv[i] + sizeof(bigint_word_t) - 1) / sizeof(bigint_word_t);
|
||||
v[i]->wordv = calloc(v[i]->length_B , sizeof(bigint_word_t));
|
||||
if(!v[i]->wordv){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
memcpy(v[i]->wordv, bv[i], sv[i]);
|
||||
bigint_changeendianess(v[i]);
|
||||
bigint_adjust(v[i]);
|
||||
priv_key.components[i] = v[i];
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t load_bigint_from_os(bigint_t* a, PGM_VOID_P os, uint16_t length_B){
|
||||
a->length_B = BIGINT_CEIL(length_B) / sizeof(bigint_word_t);
|
||||
a->wordv = malloc(BIGINT_CEIL(length_B));
|
||||
if(!a->wordv){
|
||||
cli_putstr_P(PSTR("\r\nOOM!\r\n"));
|
||||
return 1;
|
||||
}
|
||||
memset(a->wordv, 0, sizeof(bigint_word_t));
|
||||
memcpy_P((uint8_t*)a->wordv + BIGINT_OFF(length_B), os, length_B);
|
||||
a->info = 0;
|
||||
bigint_changeendianess(a);
|
||||
bigint_adjust(a);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void load_fix_rsa(void){
|
||||
if(keys_allocated){
|
||||
free_key();
|
||||
}
|
||||
keys_allocated = 1;
|
||||
|
||||
if(pre_alloc_key_crt()){
|
||||
cli_putstr_P(PSTR("\r\nOOM!\r\n"));
|
||||
return;
|
||||
}
|
||||
|
||||
load_bigint_from_os(pub_key.modulus, MODULUS, sizeof(MODULUS));
|
||||
load_bigint_from_os(pub_key.exponent, PUB_EXPONENT, sizeof(PUB_EXPONENT));
|
||||
priv_key.n = 5;
|
||||
load_bigint_from_os(priv_key.components[0], P, sizeof(P));
|
||||
load_bigint_from_os(priv_key.components[1], Q, sizeof(Q));
|
||||
load_bigint_from_os(priv_key.components[2], DP, sizeof(DP));
|
||||
load_bigint_from_os(priv_key.components[3], DQ, sizeof(DQ));
|
||||
load_bigint_from_os(priv_key.components[4], QINV, sizeof(QINV));
|
||||
|
||||
// load_priv_conventional();
|
||||
// load_priv_crt_mono();
|
||||
}
|
||||
|
||||
void quick_test(void){
|
||||
uint8_t *ciphertext, *plaintext, rc;
|
||||
uint8_t seed[sizeof(SEED)], seed_out[sizeof(SEED)];
|
||||
uint16_t clen, plen;
|
||||
if(!keys_allocated){
|
||||
load_fix_rsa();
|
||||
}
|
||||
ciphertext = malloc(clen = pub_key.modulus->length_B * sizeof(bigint_word_t));
|
||||
plaintext = malloc(pub_key.modulus->length_B * sizeof(bigint_word_t));
|
||||
memcpy_P(plaintext, MSG, sizeof(MSG));
|
||||
memcpy_P(seed, SEED, sizeof(SEED));
|
||||
cli_putstr_P(PSTR("\r\nplaintext:"));
|
||||
cli_hexdump_block(plaintext, sizeof(MSG), 4, 16);
|
||||
cli_putstr_P(PSTR("\r\nseed:"));
|
||||
cli_hexdump_block(seed, sizeof(SEED), 4, 16);
|
||||
cli_putstr_P(PSTR("\r\nencrypting: ..."));
|
||||
|
||||
rc = rsa_encrypt_pkcs15(ciphertext, &clen, plaintext, sizeof(MSG), &pub_key, seed);
|
||||
if(rc){
|
||||
cli_putstr_P(PSTR("\r\nERROR: rsa_encrypt_pkcs15 returned: "));
|
||||
cli_hexdump_byte(rc);
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
cli_putstr_P(PSTR("\r\n\r\nciphertext:"));
|
||||
cli_hexdump_block(ciphertext, clen, 4, 16);
|
||||
if(clen!=sizeof(ENCRYPTED)){
|
||||
cli_putstr_P(PSTR("\r\n>>FAIL (no size match)<<"));
|
||||
}else{
|
||||
if(memcmp_P(ciphertext, ENCRYPTED, clen)){
|
||||
cli_putstr_P(PSTR("\r\n>>FAIL (no content match)<<"));
|
||||
}else{
|
||||
cli_putstr_P(PSTR("\r\n>>OK<<"));
|
||||
}
|
||||
}
|
||||
|
||||
cli_putstr_P(PSTR("\r\ndecrypting: ..."));
|
||||
rc = rsa_decrypt_pkcs15(plaintext, &plen, ciphertext, clen, &priv_key, seed_out);
|
||||
if(rc){
|
||||
cli_putstr_P(PSTR("\r\nERROR: rsa_decrypt_pkcs15 returned: "));
|
||||
cli_hexdump_byte(rc);
|
||||
return;
|
||||
}
|
||||
cli_putstr_P(PSTR("\r\n\r\nplaintext:"));
|
||||
cli_hexdump_block(plaintext, plen, 4, 16);
|
||||
cli_putstr_P(PSTR("\r\n\r\nseed (out):"));
|
||||
cli_hexdump_block(seed_out, sizeof(SEED), 4, 16);
|
||||
|
||||
free(ciphertext);
|
||||
free(plaintext);
|
||||
}
|
||||
|
||||
void run_seed_test(void){
|
||||
uint8_t *msg, *ciph, *msg_;
|
||||
uint16_t msg_len, ciph_len, msg_len_;
|
||||
uint16_t seed_len;
|
||||
uint8_t *seed, *seed_out;
|
||||
char read_int_str[18];
|
||||
cli_putstr_P(PSTR("\r\n== test with given seed =="));
|
||||
cli_putstr_P(PSTR("\r\n = message ="));
|
||||
cli_putstr_P(PSTR("\r\n length: "));
|
||||
cli_getsn(read_int_str, 16);
|
||||
msg_len = own_atou(read_int_str);
|
||||
seed_len = rsa_pkcs15_compute_padlength_B(pub_key.modulus, msg_len);
|
||||
seed = malloc(seed_len);
|
||||
if(!seed){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
seed_out = malloc(seed_len);
|
||||
if(!seed_out){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
msg = malloc(msg_len);
|
||||
if(!msg){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
ciph = malloc(bigint_length_B(pub_key.modulus));
|
||||
if(!ciph){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
msg_ = malloc(bigint_length_B(pub_key.modulus));
|
||||
if(!msg_){
|
||||
cli_putstr_P(PSTR("\r\nERROR: OOM!"));
|
||||
return;
|
||||
}
|
||||
cli_putstr_P(PSTR("\r\n data: "));
|
||||
read_os(msg, msg_len, NULL);
|
||||
cli_putstr_P(PSTR("\r\n seed (0x"));
|
||||
cli_hexdump_rev(&seed_len, 2);
|
||||
cli_putstr_P(PSTR(" bytes): "));
|
||||
read_os(seed, seed_len, NULL);
|
||||
|
||||
cli_putstr_P(PSTR("\r\n encrypting ..."));
|
||||
/*
|
||||
cli_putstr_P(PSTR("\r\n plaintext:"));
|
||||
cli_hexdump_block(msg, msg_len, 4, 16);
|
||||
cli_putstr_P(PSTR("\r\n seed:"));
|
||||
cli_hexdump_block(seed, seed_len, 4, 16);
|
||||
*/
|
||||
rsa_encrypt_pkcs15(ciph, &ciph_len, msg, msg_len, &pub_key, seed);
|
||||
cli_putstr_P(PSTR("\r\n ciphertext:"));
|
||||
cli_hexdump_block(ciph, ciph_len, 4, 16);
|
||||
cli_putstr_P(PSTR("\r\n decrypting ... "));
|
||||
rsa_decrypt_pkcs15(msg_, &msg_len_, ciph, ciph_len, &priv_key, seed_out);
|
||||
cli_putstr_P(PSTR("[done]"));
|
||||
if(msg_len != msg_len_){
|
||||
char tstr[16];
|
||||
cli_putstr_P(PSTR("\r\nERROR: wrong decrypted message length ("));
|
||||
itoa(msg_len_, tstr, 10);
|
||||
cli_putstr(tstr);
|
||||
cli_putstr_P(PSTR(" instead of "));
|
||||
itoa(msg_len, tstr, 10);
|
||||
cli_putstr(tstr);
|
||||
cli_putc(')');
|
||||
goto end;
|
||||
}
|
||||
if(memcmp(msg, msg_, msg_len)){
|
||||
cli_putstr_P(PSTR("\r\nERROR: wrong decrypted message:"));
|
||||
cli_hexdump_block(msg_, msg_len_, 4, 16);
|
||||
cli_putstr_P(PSTR("\r\nreference:"));
|
||||
cli_hexdump_block(msg, msg_len, 4, 16);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(memcmp(seed, seed_out, seed_len)){
|
||||
cli_putstr_P(PSTR("\r\nERROR: wrong decrypted seed:"));
|
||||
cli_hexdump_block(seed_out, seed_len, 4, 16);
|
||||
cli_putstr_P(PSTR("\r\nreference:"));
|
||||
cli_hexdump_block(seed, seed_len, 4, 16);
|
||||
goto end;
|
||||
}
|
||||
cli_putstr_P(PSTR("\r\n >>OK<<"));
|
||||
end:
|
||||
free(ciph);
|
||||
free(msg_);
|
||||
free(msg);
|
||||
free(seed_out);
|
||||
free(seed);
|
||||
}
|
||||
|
||||
void reset_prng(void){
|
||||
uint8_t buf[16];
|
||||
memset(buf, 0, 16);
|
||||
random_seed(buf);
|
||||
cli_putstr_P(PSTR("\r\nPRNG reset"));
|
||||
}
|
||||
|
||||
void rsa_init(void){
|
||||
prng_get_byte = random8;
|
||||
}
|
||||
|
||||
void load_key(void){
|
||||
if(keys_allocated){
|
||||
free_key();
|
||||
}
|
||||
keys_allocated = 1;
|
||||
read_key_crt();
|
||||
}
|
||||
|
||||
void test_dump(void){
|
||||
char lstr[16];
|
||||
int len;
|
||||
cli_putstr_P(PSTR("\r\nenter dump length: "));
|
||||
cli_getsn_cecho(lstr, 15);
|
||||
len = own_atou(lstr);
|
||||
cli_putstr_P(PSTR("\r\ndumping 0x"));
|
||||
cli_hexdump_rev(&len, 2);
|
||||
cli_putstr_P(PSTR(" byte:"));
|
||||
cli_hexdump_block(pub_key.modulus->wordv, len, 4, 8);
|
||||
}
|
||||
|
||||
/*****************************************************************************
|
||||
* main *
|
||||
*****************************************************************************/
|
||||
|
||||
const char echo_test_str[] PROGMEM = "echo-test";
|
||||
const char reset_prng_str[] PROGMEM = "reset-prng";
|
||||
const char load_key_str[] PROGMEM = "load-key";
|
||||
const char load_fix_key_str[] PROGMEM = "load-fix-key";
|
||||
const char quick_test_str[] PROGMEM = "quick-test";
|
||||
const char seed_test_str[] PROGMEM = "seed-test";
|
||||
const char dump_test_str[] PROGMEM = "dump-test";
|
||||
const char performance_str[] PROGMEM = "performance";
|
||||
const char echo_str[] PROGMEM = "echo";
|
||||
|
||||
const cmdlist_entry_t cmdlist[] PROGMEM = {
|
||||
{ reset_prng_str, NULL, reset_prng },
|
||||
{ load_key_str, NULL, load_key },
|
||||
{ load_fix_key_str, NULL, load_fix_rsa },
|
||||
{ quick_test_str, NULL, quick_test },
|
||||
{ seed_test_str, NULL, run_seed_test },
|
||||
{ dump_test_str, NULL, test_dump },
|
||||
// { performance_str, NULL, testrun_performance_bigint },
|
||||
{ echo_str, (void*)1, (void_fpt)echo_ctrl },
|
||||
{ NULL, NULL, NULL }
|
||||
};
|
||||
|
||||
void dump_sp(void){
|
||||
uint8_t x;
|
||||
uint8_t *xa = &x;
|
||||
cli_putstr_P(PSTR("\r\nstack pointer: ~"));
|
||||
cli_hexdump_rev(&xa, 4);
|
||||
}
|
||||
|
||||
int main (void){
|
||||
main_setup();
|
||||
|
||||
for(;;){
|
||||
welcome_msg(algo_name);
|
||||
rsa_init();
|
||||
cmd_interface(cmdlist);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue