M2_SETI/A1/tp-spa/traces/password_hw.ipynb

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2022-10-26 10:01:19 +02:00
{
"cells": [
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"# Flash target\n",
"\n",
"import chipwhisperer as cw\n",
"\n",
"PLATFORM='CWNANO'\n",
"\n",
"try:\n",
" %run \"scripts/Setup_Generic.ipynb\"\n",
"except:\n",
" %run \"../scripts/Setup_Generic.ipynb\"\n",
"scope.adc.samples = 1000\n",
"\n",
"programmer = cw.programmers.STM32FProgrammer\n",
"try:\n",
" fw_path = 'hex/basic-passwdcheck-CWNANO.hex'\n",
" cw.program_target(scope, programmer, fw_path)\n",
"except FileNotFoundError:\n",
" fw_path = '../hex/basic-passwdcheck-CWNANO.hex'\n",
" cw.program_target(scope, programmer, fw_path)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"def serial_read():\n",
" res = ''\n",
" num_char = target.in_waiting()\n",
" while num_char > 0:\n",
" res += target.read(num_char, 10)\n",
" time.sleep(0.01)\n",
" num_char = target.in_waiting()\n",
" return res"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"scrolled": true
},
"outputs": [],
"source": [
"def cap_pass_trace(password):\n",
" if not password.endswith('\\n'):\n",
" password += '\\n'\n",
" reset_target(scope)\n",
" ret = serial_read()\n",
" scope.arm()\n",
" target.flush()\n",
" target.write(password)\n",
" ret = scope.capture()\n",
" if ret:\n",
" print('Timeout happened during acquisition') \n",
" trace = scope.get_last_trace()\n",
" return trace"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"def pass_response(password):\n",
" if not password.endswith('\\n'):\n",
" password += '\\n'\n",
" reset_target(scope)\n",
" ret = serial_read()\n",
" target.flush()\n",
" target.write(password)\n",
" time.sleep(0.1)\n",
" res = serial_read()\n",
" return res"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.2"
}
},
"nbformat": 4,
"nbformat_minor": 2
}