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Refactor signing backend (#690)

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Cleaned up the AES driver and removed some cppcheck isues
in the process.
This commit is contained in:
Patrick Fallberg
2016-12-25 16:12:40 +01:00
committed by Henrik Ekblad
parent 61e6cecb3f
commit 1040fbebc5
27 changed files with 398 additions and 14004 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/AES/AES.cpp
+6 -1
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@@ -104,7 +104,7 @@ const static byte s_inv [0x100] PROGMEM = {
} ;
// times 2 in the GF(2^8)
#define f2(x) ((x) & 0x80 ? (x << 1) ^ WPOLY : x << 1)
#define f2(x) (((x) & 0x80) ? (x << 1) ^ WPOLY : x << 1)
#define d2(x) (((x) >> 1) ^ ((x) & 1 ? DPOLY : 0))
static byte s_box (byte x)
@@ -248,6 +248,11 @@ static void inv_mix_sub_columns (byte dt[N_BLOCK], byte st[N_BLOCK])
AES::AES()
{
byte ar_iv[8] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01 };
IVC = 0x01;
round = 0;
pad = 0;
size = 0;
memset(key_sched, 0, KEY_SCHEDULE_BYTES);
memcpy(iv,ar_iv,8);
memcpy(iv+8,ar_iv,8);
arr_pad[0] = 0x01;
drivers/AES/AES.h
-36
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@@ -312,42 +312,6 @@ private:
#endif
/**
* @example aes.pde
* <b>For Arduino</b><br>
* <b>Updated: spaniakos 2015 </b><br>
*
* This is an example of how to use AES in CBC mode easily.
* The text and keys can be either in HEX or String format.<br />
*/
/**
* @example aes.cpp
* <b>For Rasberry pi</b><br>
* <b>Updated: spaniakos 2015 </b><br>
*
* This is an example of how to use AES in CBC mode easily.
* The text and keys can be either in HEX or String format.<br />
*/
/**
* @example test_vectors.pde
* <b>For Arduino</b><br>
* <b>Updated: spaniakos 2015 </b><br>
*
* This is an example of monte carlo test vectors, in order to justify the effectiveness of the algorithm.<br />
* plus is a classical approach to the AES encryption library with out the easy to use add-on modifications.
*/
/**
* @example test_vectors.cpp
* <b>For Rasberry pi</b><br>
* <b>Updated: spaniakos 2015 </b><br>
*
* This is an example of monte carlo test vectors, in order to justify the effectiveness of the algorithm.<br />
* plus is a classical approach to the AES encryption library with out the easy to use add-on modifications.
*/
/**
* @defgroup aeslib AES library for Arduino and Raspberry pi
* @ingroup internals
drivers/AES/Doxyfile
-2372
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File diff suppressed because it is too large Load Diff
drivers/AES/Makefile
-62
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@@ -1,62 +0,0 @@
#############################################################################
#
# Makefile for AES on Raspberry Pi
#
# License: GPL (General Public License)
# Author: Georgios Spanos (spaniakos) <spaniakos@gmail.com>
# Date: 02/12/2014
#
# Description:
# ------------
# use make all and mak install to install the library
# You can change the install directory by editing the LIBDIR line
#
PREFIX=/usr/local
# Library parameters
# where to put the lib
LIBDIR=$(PREFIX)/lib
# lib name
LIB=libAES
# shared library name
LIBNAME=$(LIB).so.1.0
# Where to put the header files
HEADER_DIR=${PREFIX}/include/AES
# The recommended compiler flags for the Raspberry Pi
CCFLAGS=-Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s
# make all
# reinstall the library after each recompilation
all: libAES
# Make the library
libAES: AES.o
g++ -shared -Wl,-soname,$@.so.1 ${CCFLAGS} -o ${LIBNAME} $^
# Library parts
AES.o: AES.cpp
g++ -Wall -fPIC ${CCFLAGS} -c $^
# clear build files
clean:
rm -rf *.o ${LIB}.*
rm -rf ${LIBDIR}/${LIB}.*
rm -rf ${HEADER_DIR}
install: all install-libs install-headers
# Install the library to LIBPATH
install-libs:
@echo "[Installing Libs]"
@if ( test ! -d $(PREFIX)/lib ) ; then mkdir -p $(PREFIX)/lib ; fi
@install -m 0755 ${LIBNAME} ${LIBDIR}
@ln -sf ${LIBDIR}/${LIBNAME} ${LIBDIR}/${LIB}.so.1
@ln -sf ${LIBDIR}/${LIBNAME} ${LIBDIR}/${LIB}.so
@ldconfig
install-headers:
@echo "[Installing Headers]"
@if ( test ! -d ${HEADER_DIR} ) ; then mkdir -p ${HEADER_DIR} ; fi
@install -m 0644 *.h ${HEADER_DIR}
drivers/AES/examples/aes/aes.pde
-63
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@@ -1,63 +0,0 @@
#include <AES.h>
#include "./printf.h"
AES aes ;
byte *key = (unsigned char*)"0123456789010123";
byte plain[] = "Add NodeAdd NodeAdd NodeAdd NodeAdd Node";
//real iv = iv x2 ex: 01234567 = 0123456701234567
unsigned long long int my_iv = 36753562;
void setup ()
{
Serial.begin (57600) ;
printf_begin();
delay(500);
printf("\n===testng mode\n") ;
// otfly_test () ;
// otfly_test256 () ;
}
void loop ()
{
prekey_test () ;
delay(2000);
}
void prekey (int bits)
{
aes.iv_inc();
byte iv [N_BLOCK] ;
byte plain_p[48];
byte cipher [48] ;
byte check [48] ;
unsigned long ms = micros ();
aes.set_IV(my_iv);
aes.get_IV(iv);
aes.do_aes_encrypt(plain,41,cipher,key,bits,iv);
Serial.print("Encryption took: ");
Serial.println(micros() - ms);
ms = micros ();
aes.set_IV(my_iv);
aes.get_IV(iv);
aes.do_aes_decrypt(cipher,48,check,key,bits,iv);
Serial.print("Decryption took: ");
Serial.println(micros() - ms);
printf("\n\nPLAIN :");
aes.printArray(plain,(bool)true);
printf("\nCIPHER:");
aes.printArray(cipher,(bool)false);
printf("\nCHECK :");
aes.printArray(check,(bool)true);
printf("\nIV :");
aes.printArray(iv,16);
printf("\n============================================================\n");
}
void prekey_test ()
{
prekey (128) ;
}
drivers/AES/examples/test_vectors/RESOURCES
-16
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@@ -1,16 +0,0 @@
Monte Carlo test vectors:
http://csrc.nist.gov/groups/STM/cavp/documents/aes/aesmct.zip
(Compare the Monte Carlo output to the ECBMCT128.rsp file)
Known Answer Tests:
http://csrc.nist.gov/groups/STM/cavp/documents/aes/KAT_AES.zip
- Compare the other test outputs to
ECBVarTxt128.rsp
ECBVarKey128.rsp
ECBVarTxt192.rsp
ECBVarKey192.rsp
ECBVarTxt256.rsp
ECBVarKey256.rsp
drivers/AES/examples/test_vectors/known_answers.txt
-5321
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File diff suppressed because it is too large Load Diff
drivers/AES/examples/test_vectors/test_vectors.pde
-191
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@@ -1,191 +0,0 @@
#include <AES.h>
AES aes ;
byte key [2*N_BLOCK] ;
byte plain [N_BLOCK] ;
byte iv [N_BLOCK] ;
byte cipher [N_BLOCK] ;
byte check [N_BLOCK] ;
void loop ()
{}
void setup ()
{
Serial.begin (57600) ;
Serial.print ("AES library test vectors") ;
monte_carlo (128) ;
for (int keysize = 128 ; keysize <= 256 ; keysize += 64)
{
prekey_test_var_plaintext (keysize) ;
prekey_test_var_key (keysize) ;
}
}
void prekey_test_var_plaintext (int bits)
{
Serial.println () ;
Serial.print ("ECB Varying Plaintext ") ;
Serial.print (bits) ;
Serial.println (" bits") ;
Serial.println () ;
byte succ ;
set_bits (bits, key, 0) ; // all zero key
succ = aes.set_key (key, bits) ;
if (succ != SUCCESS)
Serial.println ("Failure set_key") ;
for (int bitcount = 1 ; bitcount <= 128 ; bitcount++)
{
Serial.print ("COUNT = ") ; Serial.println (bitcount-1) ;
print_value ("KEY = ", key, bits) ;
set_bits (128, plain, bitcount) ;
print_value ("PLAINTEXT = ", plain, 128) ;
succ = aes.encrypt (plain, cipher) ;
if (succ != SUCCESS)
Serial.println ("Failure encrypt") ;
print_value ("CIPHERTEXT = ", cipher, 128) ;
succ = aes.decrypt (cipher, check) ;
if (succ != SUCCESS)
Serial.println ("Failure decrypt") ;
//print_value ("CHECK = ", check, 128) ;
check_same (plain, check, 128) ;
Serial.println () ;
}
}
void prekey_test_var_key (int bits)
{
Serial.println () ;
Serial.print ("ECB Varying Key ") ;
Serial.print (bits) ;
Serial.println (" bits") ;
Serial.println () ;
byte succ ;
set_bits (128, plain, 0) ;
for (int bitcount = 1 ; bitcount <= bits ; bitcount++)
{
set_bits (bits, key, bitcount) ; // all zero key
succ = aes.set_key (key, bits) ;
if (succ != SUCCESS)
Serial.println ("Failure set_key") ;
Serial.print ("COUNT = ") ; Serial.println (bitcount-1) ;
print_value ("KEY = ", key, bits) ;
print_value ("PLAINTEXT = ", plain, 128) ;
succ = aes.encrypt (plain, cipher) ;
if (succ != SUCCESS)
Serial.println ("Failure encrypt") ;
print_value ("CIPHERTEXT = ", cipher, 128) ;
succ = aes.decrypt (cipher, check) ;
if (succ != SUCCESS)
Serial.println ("Failure decrypt") ;
check_same (plain, check, 128) ;
Serial.println () ;
}
}
void set_bits (int bits, byte * a, int count)
{
bits >>= 3 ;
byte bcount = count >> 3 ;
for (byte i = 0 ; i < bcount ; i++)
a [i] = 0xFF ;
if ((count & 7) != 0)
a [bcount++] = 0xFF & (0xFF00 >> (count & 7)) ;
for (byte i = bcount ; i < bits ; i++)
a [i] = 0x00 ;
}
void check_same (byte * a, byte * b, int bits)
{
bits >>= 3 ;
for (byte i = 0 ; i < bits ; i++)
if (a[i] != b[i])
{
Serial.println ("Failure plain != check") ;
return ;
}
}
char hex[] = "0123456789abcdef" ;
void print_value (const char * str, byte * a, int bits)
{
Serial.print (str) ;
bits >>= 3 ;
for (int i = 0 ; i < bits ; i++)
{
byte b = a[i] ;
Serial.print (hex [b >> 4]) ;
Serial.print (hex [b & 15]) ;
}
Serial.println () ;
}
byte monteplain [] =
{ 0xb9, 0x14, 0x5a, 0x76, 0x8b, 0x7d, 0xc4, 0x89,
0xa0, 0x96, 0xb5, 0x46, 0xf4, 0x3b, 0x23, 0x1f } ;
byte montekey [] =
{ 0x13, 0x9a, 0x35, 0x42, 0x2f, 0x1d, 0x61, 0xde,
0x3c, 0x91, 0x78, 0x7f, 0xe0, 0x50, 0x7a, 0xfd } ;
void monte_carlo (int bits)
{
Serial.println () ;
Serial.print ("Monte Carlo ") ;
Serial.print (bits) ;
Serial.println (" bits") ;
Serial.println () ;
byte succ ;
for (int i = 0 ; i < 16 ; i++)
{
plain [i] = monteplain [i] ;
key [i] = montekey [i] ;
}
for (int i = 0 ; i < 100 ; i++)
{
Serial.print ("COUNT = ") ; Serial.println (i) ;
print_value ("KEY = ", key, bits) ;
print_value ("PLAINTEXT = ", plain, 128) ;
succ = aes.set_key (key, bits) ;
for (int j = 0 ; j < 1000 ; j++)
{
succ = aes.encrypt (plain, cipher) ;
aes.copy_n_bytes (plain, cipher, 16) ;
}
print_value ("CIPHERTEXT = ", cipher, 128) ;
Serial.println () ;
if (bits == 128)
{
for (byte k = 0 ; k < 16 ; k++)
key [k] ^= cipher [k] ;
}
else if (bits == 192)
{
}
else
{
}
}
}
drivers/AES/examples_Rpi/Makefile
-39
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@@ -1,39 +0,0 @@
#############################################################################
#
# Makefile for AES examples on Raspberry Pi
#
# License: GPL (General Public License)
# Author: gnulnulf <arco@appeltaart.mine.nu>
# Date: 2013/02/07 (version 1.0)
#
# Description:
# ------------
# use make all and make install to install the examples
# You can change the install directory by editing the prefix line
#
prefix := /usr/local
# The recommended compiler flags for the Raspberry Pi
CCFLAGS=-Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s
#CCFLAGS=
# define all programs
PROGRAMS = aes test_vectors
SOURCES = ${PROGRAMS:=.cpp}
all: ${PROGRAMS}
${PROGRAMS}: ${SOURCES}
g++ ${CCFLAGS} -Wall -I../ -lAES $@.cpp -o $@
clean:
rm -rf $(PROGRAMS)
install: all
test -d $(prefix) || mkdir $(prefix)
test -d $(prefix)/bin || mkdir $(prefix)/bin
for prog in $(PROGRAMS); do \
install -m 0755 $$prog $(prefix)/bin; \
done
.PHONY: install
drivers/AES/examples_Rpi/RESOURCES
-16
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@@ -1,16 +0,0 @@
Monte Carlo test vectors:
http://csrc.nist.gov/groups/STM/cavp/documents/aes/aesmct.zip
(Compare the Monte Carlo output to the ECBMCT128.rsp file)
Known Answer Tests:
http://csrc.nist.gov/groups/STM/cavp/documents/aes/KAT_AES.zip
- Compare the other test outputs to
ECBVarTxt128.rsp
ECBVarKey128.rsp
ECBVarTxt192.rsp
ECBVarKey192.rsp
ECBVarTxt256.rsp
ECBVarKey256.rsp
drivers/AES/examples_Rpi/aes.cpp
-47
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@@ -1,47 +0,0 @@
#include <AES.h>
#include "printf.h"
AES aes;
void prekey_test ();
void prekey (int bits, int blocks);
byte key[] = "01234567899876543210012345678998";
byte plain[] = "TESTTESTTESTTESTTESTTESTTESTTESTTESTTESTTESTTESTTESTTESTTEST";
//real iv = iv x2 ex: 01234567 = 0123456701234567
unsigned long long int my_iv = 01234567;
int main(int argc, char** argv)
{
printf("\n===testng mode\n") ;
for (int i=0; i<1; i++) {
prekey_test () ;
}
}
void prekey (int bits)
{
byte iv [N_BLOCK] ;
byte plain_p[sizeof(plain) + (N_BLOCK - (sizeof(plain) % 16)) - 1];
byte cipher[sizeof(plain_p)];
aes.do_aes_encrypt(plain,sizeof(plain),cipher,key,bits);
aes.get_IV(iv);
aes.do_aes_dencrypt(cipher,aes.get_size(),plain_p,key,bits,iv);
//normally u have sizeof(cipher) but if its in the same sketch you cannot determin it dynamically
printf("\n\nPLAIN :");
aes.printArray(plain);
printf("\nCIPHER:");
aes.printArray(cipher);
printf("\nPlain2:");
aes.printArray(plain_p);
printf("\n============================================================\n");
}
void prekey_test ()
{
prekey (128) ;
}
drivers/AES/examples_Rpi/known_answers.txt
-5321
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File diff suppressed because it is too large Load Diff
drivers/AES/examples_Rpi/test_vectors.cpp
-182
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@@ -1,182 +0,0 @@
#include <AES.h>
#include "printf.h"
AES aes ;
byte key [2*N_BLOCK] ;
byte plain [N_BLOCK] ;
byte iv [N_BLOCK] ;
byte cipher [N_BLOCK] ;
byte check [N_BLOCK] ;
void print_value (const char * str, byte * a, int bits);
void prekey_test_var_plaintext (int bits);
void prekey_test_var_key (int bits);
void set_bits (int bits, byte * a, int count);
void check_same (byte * a, byte * b, int bits);
void monte_carlo (int bits);
int main(int argc, char** argv)
{
printf ("AES library test vectors") ;
monte_carlo (128) ;
for (int keysize = 128 ; keysize <= 256 ; keysize += 64) {
prekey_test_var_plaintext (keysize) ;
prekey_test_var_key (keysize) ;
}
}
void prekey_test_var_plaintext (int bits)
{
printf ("\nECB Varying Plaintext %i bits\n",bits) ;
byte succ ;
set_bits (bits, key, 0) ; // all zero key
succ = aes.set_key (key, bits) ;
if (succ != SUCCESS) {
printf("Failure set_key\n") ;
}
for (int bitcount = 1 ; bitcount <= 128 ; bitcount++) {
printf ("COUNT = %i \n",bitcount-1);
print_value ("KEY = ", key, bits) ;
set_bits (128, plain, bitcount) ;
print_value ("PLAINTEXT = ", plain, 128) ;
succ = aes.encrypt (plain, cipher) ;
if (succ != SUCCESS) {
printf ("Failure encrypt\n") ;
}
print_value ("CIPHERTEXT = ", cipher, 128) ;
succ = aes.decrypt (cipher, check) ;
if (succ != SUCCESS) {
printf ("Failure decrypt\n") ;
}
//print_value ("CHECK = ", check, 128) ;
check_same (plain, check, 128) ;
printf ("\n") ;
}
}
void prekey_test_var_key (int bits)
{
printf ("\nECB Varying key %i bits\n",bits);
byte succ ;
set_bits (128, plain, 0) ;
for (int bitcount = 1 ; bitcount <= bits ; bitcount++) {
set_bits (bits, key, bitcount) ; // all zero key
succ = aes.set_key (key, bits) ;
if (succ != SUCCESS) {
printf ("Failure set_key\n") ;
}
printf ("COUNT = %i\n",bitcount-1);
print_value ("KEY = ", key, bits) ;
print_value ("PLAINTEXT = ", plain, 128) ;
succ = aes.encrypt (plain, cipher) ;
if (succ != SUCCESS) {
printf ("Failure encrypt\n") ;
}
print_value ("CIPHERTEXT = ", cipher, 128) ;
succ = aes.decrypt (cipher, check) ;
if (succ != SUCCESS) {
printf ("Failure decrypt\n") ;
}
check_same (plain, check, 128) ;
printf("\n");
}
}
void set_bits (int bits, byte * a, int count)
{
bits >>= 3 ;
byte bcount = count >> 3 ;
for (byte i = 0 ; i < bcount ; i++) {
a [i] = 0xFF ;
}
if ((count & 7) != 0) {
a [bcount++] = 0xFF & (0xFF00 >> (count & 7)) ;
}
for (byte i = bcount ; i < bits ; i++) {
a [i] = 0x00 ;
}
}
void check_same (byte * a, byte * b, int bits)
{
bits >>= 3 ;
for (byte i = 0 ; i < bits ; i++)
if (a[i] != b[i]) {
printf ("Failure plain != check\n") ;
return ;
}
}
char hex[] = "0123456789abcdef" ;
void print_value (const char * str, byte * a, int bits)
{
printf ("%s",str) ;
bits >>= 3 ;
for (int i = 0 ; i < bits ; i++) {
byte b = a[i] ;
printf("%c%c",hex[b >> 4],hex [b & 15]);
//Serial.print (hex [b >> 4]) ;
//Serial.print (hex [b & 15]) ;
}
printf("\n") ;
}
byte monteplain [] = {
0xb9, 0x14, 0x5a, 0x76, 0x8b, 0x7d, 0xc4, 0x89,
0xa0, 0x96, 0xb5, 0x46, 0xf4, 0x3b, 0x23, 0x1f
} ;
byte montekey [] = {
0x13, 0x9a, 0x35, 0x42, 0x2f, 0x1d, 0x61, 0xde,
0x3c, 0x91, 0x78, 0x7f, 0xe0, 0x50, 0x7a, 0xfd
} ;
void monte_carlo (int bits)
{
printf ("\nMonte Carlo %i bits\n",bits);
byte succ;
for (int i = 0 ; i < 16 ; i++) {
plain [i] = monteplain [i] ;
key [i] = montekey [i] ;
}
for (int i = 0 ; i < 100 ; i++) {
printf ("COUNT = %i\n",i);
print_value ("KEY = ", key, bits) ;
print_value ("PLAINTEXT = ", plain, 128) ;
succ = aes.set_key (key, bits) ;
for (int j = 0 ; j < 1000 ; j++) {
succ = aes.encrypt (plain, cipher) ;
aes.copy_n_bytes (plain, cipher, 16) ;
}
print_value ("CIPHERTEXT = ", cipher, 128) ;
printf("\n");
if (bits == 128) {
for (byte k = 0 ; k < 16 ; k++) {
key [k] ^= cipher [k] ;
}
} else if (bits == 192) {
} else {
}
}
}
drivers/AES/printf.h
-59
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@@ -1,59 +0,0 @@
/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
*/
/* Galileo support from spaniakos <spaniakos@gmail.com> */
/**
* @file printf.h
*
* Setup necessary to direct stdout to the Arduino Serial library, which
* enables 'printf'
*/
#ifndef __PRINTF_H__
#define __PRINTF_H__
#if defined (ARDUINO) && !defined (__arm__) && !defined(__ARDUINO_X86__)
int serial_putc( char c, FILE * )
{
Serial.write( c );
return c;
}
void printf_begin(void)
{
fdevopen( &serial_putc, 0 );
}
#elif defined (__arm__)
void printf_begin(void) {}
#elif defined(__ARDUINO_X86__)
int serial_putc( char c, FILE * )
{
Serial.write( c );
return c;
}
void printf_begin(void)
{
//JESUS - For reddirect stdout to /dev/ttyGS0 (Serial Monitor port)
stdout = freopen("/dev/ttyGS0","w",stdout);
delay(500);
printf("redirecting to Serial...");
//JESUS -----------------------------------------------------------
}
#else
#error This example is only for use on Arduino.
#endif // ARDUINO
#endif // __PRINTF_H__
drivers/ATSHA204/ATSHA204.cpp
+1 -1
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@@ -177,7 +177,6 @@ static uint8_t swi_receive_bytes(uint8_t count, uint8_t *buffer)
static uint8_t sha204p_receive_response(uint8_t size, uint8_t *response)
{
uint8_t count_byte;
uint8_t i;
uint8_t ret_code;
@@ -189,6 +188,7 @@ static uint8_t sha204p_receive_response(uint8_t size, uint8_t *response)
ret_code = swi_receive_bytes(size, response);
if (ret_code == SWI_FUNCTION_RETCODE_SUCCESS || ret_code == SWI_FUNCTION_RETCODE_RX_FAIL) {
uint8_t count_byte;
count_byte = response[SHA204_BUFFER_POS_COUNT];
if ((count_byte < SHA204_RSP_SIZE_MIN) || (count_byte > size)) {
return SHA204_INVALID_SIZE;
drivers/ATSHA204/sha256.cpp
+10
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@@ -32,6 +32,16 @@ const uint8_t sha256InitState[] PROGMEM = {
0x19,0xcd,0xe0,0x5b // H7
};
Sha256Class::Sha256Class()
{
memset(keyBuffer, 0, BLOCK_LENGTH);
memset(innerHash, 0, HASH_LENGTH);
memset(buffer.b, 0, BLOCK_LENGTH);
memset(state.b, 0, BLOCK_LENGTH);
bufferOffset = 0;
byteCount = 0;
}
void Sha256Class::init(void)
{
memcpy_P(state.b,sha256InitState,32);
drivers/ATSHA204/sha256.h
+1
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@@ -19,6 +19,7 @@ union _state {
class Sha256Class
{
public:
Sha256Class(); // Constructor
void init(void);
void initHmac(const uint8_t* secret, int secretLength);
uint8_t* result(void);