#!/usr/bin/env python
# -*- coding: utf-8 -*-
#=======================================================================
#
# hash_tester.py
# --------------
# This program sends several commands to the coretest_hashed subsystem
# in order to verify the SHA-1 and SHA-256 hash function cores.
# The program uses the built in hash implementations in Python
# to do functional comparison and validation.
#
# Note: This program requires the PySerial module.
# http://pyserial.sourceforge.net/
#
#
# Author: Joachim Strömbergson
# Copyright (c) 2014, SUNET
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#=======================================================================
#-------------------------------------------------------------------
# Python module imports.
#-------------------------------------------------------------------
import sys
import serial
import os
import time
import threading
import hashlib
#-------------------------------------------------------------------
# Defines.
#-------------------------------------------------------------------
# Serial port defines.
# CONFIGURE YOUR DEVICE HERE!
SERIAL_DEVICE = '/dev/cu.usbserial-A801SA6T'
BAUD_RATE = 9600
DATA_BITS = 8
STOP_BITS = 1
# Verbose operation on/off
VERBOSE = False
# Memory map.
SOC = '\x55'
EOC = '\xaa'
READ_CMD = '\x10'
WRITE_CMD = '\x11'
UART_ADDR_PREFIX = '\x00'
SHA1_ADDR_PREFIX = '\x10'
SHA1_ADDR_NAME0 = '\x00'
SHA1_ADDR_NAME1 = '\x01'
SHA1_ADDR_VERSION = '\x02'
SHA1_ADDR_CTRL = '\x08'
SHA1_CTRL_INIT_BIT = 0
SHA1_CTRL_NEXT_BIT = 1
SHA1_ADDR_STATUS = '\x09'
SHA1_STATUS_READY_BIT = 0
SHA1_STATUS_VALID_BIT = 1
SHA1_ADDR_BLOCK0 = '\x10'
SHA1_ADDR_BLOCK1 = '\x11'
SHA1_ADDR_BLOCK2 = '\x12'
SHA1_ADDR_BLOCK3 = '\x13'
SHA1_ADDR_BLOCK4 = '\x14'
SHA1_ADDR_BLOCK5 = '\x15'
SHA1_ADDR_BLOCK6 = '\x16'
SHA1_ADDR_BLOCK7 = '\x17'
SHA1_ADDR_BLOCK8 = '\x18'
SHA1_ADDR_BLOCK9 = '\x19'
SHA1_ADDR_BLOCK10 = '\x1a'
SHA1_ADDR_BLOCK11 = '\x1b'
SHA1_ADDR_BLOCK12 = '\x1c'
SHA1_ADDR_BLOCK13 = '\x1d'
SHA1_ADDR_BLOCK14 = '\x1e'
SHA1_ADDR_BLOCK15 = '\x1f'
SHA1_ADDR_DIGEST0 = '\x20'
SHA1_ADDR_DIGEST1 = '\x21'
SHA1_ADDR_DIGEST2 = '\x22'
SHA1_ADDR_DIGEST3 = '\x23'
SHA1_ADDR_DIGEST4 = '\x24'
SHA256_ADDR_PREFIX = '\x20'
SHA256_ADDR_NAME0 = '\x00'
SHA256_ADDR_NAME1 = '\x01'
SHA256_ADDR_VERSION = '\x02'
SHA256_ADDR_CTRL = '\x08'
SHA256_CTRL_INIT_BIT = 0
SHA256_CTRL_NEXT_BIT = 1
SHA256_ADDR_STATUS = '\x09'
SHA256_STATUS_READY_BIT = 0
SHA256_STATUS_VALID_BIT = 1
SHA256_ADDR_BLOCK0 = '\x10'
SHA256_ADDR_BLOCK1 = '\x11'
SHA256_ADDR_BLOCK2 = '\x12'
SHA256_ADDR_BLOCK3 = '\x13'
SHA256_ADDR_BLOCK4 = '\x14'
SHA256_ADDR_BLOCK5 = '\x15'
SHA256_ADDR_BLOCK6 = '\x16'
SHA256_ADDR_BLOCK7 = '\x17'
SHA256_ADDR_BLOCK8 = '\x18'
SHA256_ADDR_BLOCK9 = '\x19'
SHA256_ADDR_BLOCK10 = '\x1a'
SHA256_ADDR_BLOCK11 = '\x1b'
SHA256_ADDR_BLOCK12 = '\x1c'
SHA256_ADDR_BLOCK13 = '\x1d'
SHA256_ADDR_BLOCK14 = '\x1e'
SHA256_ADDR_BLOCK15 = '\x1f'
SHA256_ADDR_DIGEST0 = '\x20'
SHA256_ADDR_DIGEST1 = '\x21'
SHA256_ADDR_DIGEST2 = '\x22'
SHA256_ADDR_DIGEST3 = '\x23'
SHA256_ADDR_DIGEST4 = '\x24'
SHA256_ADDR_DIGEST5 = '\x25'
SHA256_ADDR_DIGEST6 = '\x26'
SHA256_ADDR_DIGEST7 = '\x27'
NAME0_ADDR = '\x00'
NAME1_ADDR = '\x01'
VERSION_ADDR = '\x02'
sha1_block_addr = [SHA1_ADDR_BLOCK0, SHA1_ADDR_BLOCK1,
SHA1_ADDR_BLOCK2, SHA1_ADDR_BLOCK3,
SHA1_ADDR_BLOCK4, SHA1_ADDR_BLOCK5,
SHA1_ADDR_BLOCK6, SHA1_ADDR_BLOCK7,
SHA1_ADDR_BLOCK8, SHA1_ADDR_BLOCK9,
SHA1_ADDR_BLOCK10, SHA1_ADDR_BLOCK11,
SHA1_ADDR_BLOCK12, SHA1_ADDR_BLOCK13,
SHA1_ADDR_BLOCK14, SHA1_ADDR_BLOCK15]
sha1_digest_addr = [SHA1_ADDR_DIGEST0, SHA1_ADDR_DIGEST1,
SHA1_ADDR_DIGEST2, SHA1_ADDR_DIGEST3,
SHA1_ADDR_DIGEST4]
sha256_block_addr = [SHA256_ADDR_BLOCK0, SHA256_ADDR_BLOCK1,
SHA256_ADDR_BLOCK2, SHA256_ADDR_BLOCK3,
SHA256_ADDR_BLOCK4, SHA256_ADDR_BLOCK5,
SHA256_ADDR_BLOCK6, SHA256_ADDR_BLOCK7,
SHA256_ADDR_BLOCK8, SHA256_ADDR_BLOCK9,
SHA256_ADDR_BLOCK10, SHA256_ADDR_BLOCK11,
SHA256_ADDR_BLOCK12, SHA256_ADDR_BLOCK13,
SHA256_ADDR_BLOCK14, SHA256_ADDR_BLOCK15]
sha256_digest_addr = [SHA256_ADDR_DIGEST0, SHA256_ADDR_DIGEST1,
SHA256_ADDR_DIGEST2, SHA256_ADDR_DIGEST3,
SHA256_ADDR_DIGEST4, SHA256_ADDR_DIGEST5,
SHA256_ADDR_DIGEST6, SHA256_ADDR_DIGEST7]
#-------------------------------------------------------------------
# print_response()
#
# Parses a received buffer and prints the response.
#-------------------------------------------------------------------
def print_response(buffer):
if VERBOSE:
print "Length of response: %d" % len(buffer)
if buffer[0] == '\xaa':
print "Response contains correct Start of Response (SOR)"
if buffer[-1] == '\x55':
print "Response contains correct End of Response (EOR)"
response_code = ord(buffer[1])
if response_code == 0xfe:
print "UNKNOWN response code received."
elif response_code == 0xfd:
print "ERROR response code received."
elif response_code == 0x7f:
read_addr = ord(buffer[2]) * 256 + ord(buffer[3])
read_data = (ord(buffer[4]) * 16777216) + (ord(buffer[5]) * 65536) +\
(ord(buffer[6]) * 256) + ord(buffer[7])
print "READ_OK. address 0x%02x = 0x%08x." % (read_addr, read_data)
elif response_code == 0x7e:
read_addr = ord(buffer[2]) * 256 + ord(buffer[3])
print "WRITE_OK. address 0x%02x." % (read_addr)
elif response_code == 0x7d:
print "RESET_OK."
else:
print "Response 0x%02x is unknown." % response_code
print buffer
#-------------------------------------------------------------------
# read_serial_thread()
#
# Function used in a thread to read from the serial port and
# collect response from coretest.
#-------------------------------------------------------------------
def read_serial_thread(serialport):
if VERBOSE:
print "Serial port response thread started. Waiting for response..."
buffer = []
while True:
if serialport.isOpen():
response = serialport.read()
buffer.append(response)
if ((response == '\x55') and len(buffer) > 7):
print_response(buffer)
buffer = []
else:
print "No open device yet."
time.sleep(0.1)
#-------------------------------------------------------------------
# write_serial_bytes()
#
# Send the bytes in the buffer to coretest over the serial port.
#-------------------------------------------------------------------
def write_serial_bytes(tx_cmd, serialport):
if VERBOSE:
print "Command to be sent:", tx_cmd
for tx_byte in tx_cmd:
serialport.write(tx_byte)
# Allow the device to complete the transaction.
time.sleep(0.1)
#-------------------------------------------------------------------
# single_block_test_sha256()
#
# Write a given block to SHA-256 and perform single block
# processing.
#-------------------------------------------------------------------
def single_block_test_sha256(block, ser):
# Write block to SHA-2.
for i in range(len(block) / 4):
message = [SOC, WRITE_CMD, SHA256_ADDR_PREFIX,] + [sha256_block_addr[i]] +\
block[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start initial block hashing, wait and check status.
write_serial_bytes([SOC, WRITE_CMD, SHA256_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x01', EOC], ser)
time.sleep(0.1)
write_serial_bytes([SOC, READ_CMD, SHA256_ADDR_PREFIX, SHA256_ADDR_STATUS, EOC], ser)
# Extract contents of the digest registers.
for i in range(8):
message = [SOC, READ_CMD, SHA256_ADDR_PREFIX] + [sha256_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
#-------------------------------------------------------------------
# double_block_test_sha256()
#
# Run double block message test.
#-------------------------------------------------------------------
def double_block_test_sha256(block1, block2, ser):
# Write block1 to SHA-256.
for i in range(len(block1) / 4):
message = [SOC, WRITE_CMD, SHA256_ADDR_PREFIX,] + [sha256_block_addr[i]] +\
block1[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start initial block hashing, wait and check status.
write_serial_bytes([SOC, WRITE_CMD, SHA256_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x01', EOC], ser)
time.sleep(0.1)
write_serial_bytes([SOC, READ_CMD, SHA256_ADDR_PREFIX, SHA256_ADDR_STATUS, EOC], ser)
# Extract contents of the digest registers.
for i in range(8):
message = [SOC, READ_CMD, SHA256_ADDR_PREFIX] + [sha256_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
# Write block2 to SHA-256.
for i in range(len(block2) / 4):
message = [SOC, WRITE_CMD, SHA256_ADDR_PREFIX,] + [sha256_block_addr[i]] +\
block2[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start next block hashing, wait and check status.
write_serial_bytes([SOC, WRITE_CMD, SHA256_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x02', EOC], ser)
time.sleep(0.1)
write_serial_bytes([SOC, READ_CMD, SHA256_ADDR_PREFIX, SHA256_ADDR_STATUS, EOC], ser)
# Extract contents of the digest registers.
for i in range(8):
message = [SOC, READ_CMD, SHA256_ADDR_PREFIX] + [sha256_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
#-------------------------------------------------------------------
# huge_message_test_sha256()
# Test with a message with a huge number (n) number of blocks.
#-------------------------------------------------------------------
def huge_message_test_sha256(block, n, ser):
# Write block to SHA-256.
for i in range(len(block) / 4):
message = [SOC, WRITE_CMD, SHA256_ADDR_PREFIX,] + [sha256_block_addr[i]] +\
block[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start initial block hashing, wait.
write_serial_bytes([SOC, WRITE_CMD, SHA256_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x01', EOC], ser)
time.sleep(0.1)
print "Block 0 done."
# First blocl done.
n = n - 1
for i in range(n):
# Start next block hashing, wait.
write_serial_bytes([SOC, WRITE_CMD, SHA256_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x02', EOC], ser)
time.sleep(0.1)
print "Block %d done." % (i + 1)
# Extract contents of the digest registers.
for i in range(8):
message = [SOC, READ_CMD, SHA256_ADDR_PREFIX] + [sha256_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
#-------------------------------------------------------------------
# single_block_test_sha1()
#
# Write a given block to SHA-1 and perform single block
# processing.
#-------------------------------------------------------------------
def single_block_test_sha1(block, ser):
# Write block to SHA-1.
for i in range(len(block) / 4):
message = [SOC, WRITE_CMD, SHA1_ADDR_PREFIX,] + [sha1_block_addr[i]] +\
block[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start initial block hashing, wait and check status.
write_serial_bytes([SOC, WRITE_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x01', EOC], ser)
time.sleep(0.1)
write_serial_bytes([SOC, READ_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_STATUS, EOC], ser)
# Extract the digest.
for i in range(5):
message = [SOC, READ_CMD, SHA1_ADDR_PREFIX] + [sha1_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
#-------------------------------------------------------------------
# double_block_test_sha1
#
# Run double block message test for SHA-1.
#-------------------------------------------------------------------
def double_block_test_sha1(block1, block2, ser):
# Write block1 to SHA-1.
for i in range(len(block1) / 4):
message = [SOC, WRITE_CMD, SHA1_ADDR_PREFIX,] + [sha1_block_addr[i]] +\
block1[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start initial block hashing, wait and check status.
write_serial_bytes([SOC, WRITE_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x01', EOC], ser)
time.sleep(0.1)
write_serial_bytes([SOC, READ_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_STATUS, EOC], ser)
# Extract the digest.
for i in range(5):
message = [SOC, READ_CMD, SHA1_ADDR_PREFIX] + [sha1_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
# Write block2 to SHA-1.
for i in range(len(block2) / 4):
message = [SOC, WRITE_CMD, SHA1_ADDR_PREFIX,] + [sha1_block_addr[i]] +\
block2[(i * 4) : ((i * 4 ) + 4)] + [EOC]
write_serial_bytes(message, ser)
# Start next block hashing, wait and check status.
write_serial_bytes([SOC, WRITE_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_CTRL, '\x00', '\x00', '\x00', '\x02', EOC], ser)
time.sleep(0.1)
write_serial_bytes([SOC, READ_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_STATUS, EOC], ser)
# Extract the digest.
for i in range(5):
message = [SOC, READ_CMD, SHA1_ADDR_PREFIX] + [sha1_digest_addr[i]] + [EOC]
write_serial_bytes(message, ser)
print""
#-------------------------------------------------------------------
# main()
#
# Parse any arguments and run the tests.
#-------------------------------------------------------------------
def main():
# Open device
ser = serial.Serial()
ser.port=SERIAL_DEVICE
ser.baudrate=BAUD_RATE
ser.bytesize=DATA_BITS
ser.parity='N'
ser.stopbits=STOP_BITS
ser.timeout=1
ser.writeTimeout=0
if VERBOSE:
print "Setting up a serial port and starting a receive thread."
try:
ser.open()
except:
print "Error: Can't open serial device."
sys.exit(1)
try:
my_thread = threading.Thread(target=read_serial_thread, args=(ser,))
except:
print "Error: Can't start thread."
sys.exit()
my_thread.daemon = True
my_thread.start()
# TC1: Read name and version from SHA-1 core.
print "TC1: Reading name, type and version words from SHA-1 core."
write_serial_bytes([SOC, READ_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_NAME0, EOC], ser)
write_serial_bytes([SOC, READ_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_NAME1, EOC], ser)
write_serial_bytes([SOC, READ_CMD, SHA1_ADDR_PREFIX, SHA1_ADDR_VERSION, EOC], ser)
print""
# TC2: Single block message test as specified by NIST.
print "TC2: Single block message test for SHA-1."
tc2_block = ['\x61', '\x62', '\x63', '\x80', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x18']
tc2_sha1_expected = [0xa9993e36, 0x4706816a, 0xba3e2571,
0x7850c26c, 0x9cd0d89d]
print "TC2: Expected digest values as specified by NIST:"
for i in tc2_sha1_expected:
print("0x%08x " % i)
print("")
single_block_test_sha1(tc2_block, ser)
# TC3: Double block message test as specified by NIST.
print "TC3: Double block message test for SHA-1."
tc3_1_block = ['\x61', '\x62', '\x63', '\x64', '\x62', '\x63', '\x64', '\x65',
'\x63', '\x64', '\x65', '\x66', '\x64', '\x65', '\x66', '\x67',
'\x65', '\x66', '\x67', '\x68', '\x66', '\x67', '\x68', '\x69',
'\x67', '\x68', '\x69', '\x6A', '\x68', '\x69', '\x6A', '\x6B',
'\x69', '\x6A', '\x6B', '\x6C', '\x6A', '\x6B', '\x6C', '\x6D',
'\x6B', '\x6C', '\x6D', '\x6E', '\x6C', '\x6D', '\x6E', '\x6F',
'\x6D', '\x6E', '\x6F', '\x70', '\x6E', '\x6F', '\x70', '\x71',
'\x80', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00']
tc3_2_block = ['\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x00',
'\x00', '\x00', '\x00', '\x00', '\x00', '\x00', '\x01', '\xC0']
tc3_1_sha1_expected = [0xF4286818, 0xC37B27AE, 0x0408F581,
0x84677148, 0x4A566572]
tc3_2_sha1_expected = [0x84983E44, 0x1C3BD26E, 0xBAAE4AA1,
0xF95129E5, 0xE54670F1]
print "TC3: Expected digest values for first block as specified by NIST:"
for i in tc3_1_sha1_expected:
print("0x%08x " % i)
print("")
print "TC3: Expected digest values for second block as specified by NIST:"
for i in tc3_2_sha1_expected:
print("0x%08x " % i)
print("")
double_block_test_sha1(tc3_1_block, tc3_2_block, ser)
# TC4: Read name and version from SHA-256 core.
print "TC4: Reading name, type and version words from SHA-256 core."
my_cmd = [SOC, READ_CMD, SHA256_ADDR_PREFIX, NAME0_ADDR, EOC]
write_serial_bytes(my_cmd, ser)
my_cmd = [SOC, READ_CMD, SHA256_ADDR_PREFIX, NAME1_ADDR, EOC]
write_serial_bytes(my_cmd, ser)
my_cmd = [SOC, READ_CMD, SHA256_ADDR_PREFIX, VERSION_ADDR, EOC]
write_serial_bytes(my_cmd, ser)
print""
# TC5: Single block message test as specified by NIST.
print "TC5: Single block message test for SHA-256."
tc5_sha256_expected = [0xBA7816BF, 0x8F01CFEA, 0x414140DE, 0x5DAE2223,
0xB00361A3, 0x96177A9C, 0xB410FF61, 0xF20015AD]
print "TC5: Expected digest values as specified by NIST:"
for i in tc5_sha256_expected:
print("0x%08x " % i)
print("")
single_block_test_sha256(tc2_block, ser)
# TC6: Double block message test as specified by NIST.
print "TC6: Double block message test for SHA-256."
tc6_1_sha256_expected = [0x85E655D6, 0x417A1795, 0x3363376A, 0x624CDE5C,
0x76E09589, 0xCAC5F811, 0xCC4B32C1, 0xF20E533A]
tc6_2_sha256_expected = [0x248D6A61, 0xD20638B8, 0xE5C02693, 0x0C3E6039,
0xA33CE459, 0x64FF2167, 0xF6ECEDD4, 0x19DB06C1]
print "TC6: Expected digest values for first block as specified by NIST:"
for i in tc6_1_sha256_expected:
print("0x%08x " % i)
print("")
print "TC6: Expected digest values for second block as specified by NIST:"
for i in tc6_2_sha256_expected:
print("0x%08x " % i)
print("")
double_block_test_sha256(tc3_1_block, tc3_2_block, ser)
# TC7: Huge message test.
# n = 10
# print "TC7: Message with %d blocks test for SHA-256." % n
# tc7_block = ['\xaa', '\x55', '\xaa', '\x55', '\xde', '\xad', '\xbe', '\xef',
# '\x55', '\xaa', '\x55', '\xaa', '\xf0', '\x0f', '\xf0', '\x0f',
# '\xaa', '\x55', '\xaa', '\x55', '\xde', '\xad', '\xbe', '\xef',
# '\x55', '\xaa', '\x55', '\xaa', '\xf0', '\x0f', '\xf0', '\x0f',
# '\xaa', '\x55', '\xaa', '\x55', '\xde', '\xad', '\xbe', '\xef',
# '\x55', '\xaa', '\x55', '\xaa', '\xf0', '\x0f', '\xf0', '\x0f',
# '\xaa', '\x55', '\xaa', '\x55', '\xde', '\xad', '\xbe', '\xef',
# '\x55', '\xaa', '\x55', '\xaa', '\xf0', '\x0f', '\xf0', '\x0f']
#
# tc7_expected = [0xf407ff0d, 0xb9dce2f6, 0x9b9759a9, 0xd3cdc805,
# 0xf250086d, 0x73bbefd5, 0xa972e0f7, 0x61a9c13e]
#
# print "TC7: Expected digest values after %d blocks:" %n
# for i in tc7_expected:
# print("0x%08x " % i)
# print("")
# huge_message_test_sha256(tc7_block, n, ser)
# Exit nicely.
if VERBOSE:
print "Done. Closing device."
ser.close()
#-------------------------------------------------------------------
# __name__
# Python thingy which allows the file to be run standalone as
# well as parsed from within a Python interpreter.
#-------------------------------------------------------------------
if __name__=="__main__":
# Run the main function.
sys.exit(main())
#=======================================================================
# EOF hash_tester.py
#=======================================================================
