diff --git a/burn-cvcerts.py b/burn-cvcerts.py new file mode 100644 index 0000000..6dc085f --- /dev/null +++ b/burn-cvcerts.py @@ -0,0 +1,72 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +""" +Created on Wed Apr 13 20:15:01 2022 + +@author: Pol Henarejos +""" + +from cryptography.hazmat.backends import default_backend +from cryptography.hazmat.primitives import serialization +from cryptography.hazmat.primitives.asymmetric import ec +import base64 +import urllib.request +import json + +def print_var(v, name): + s = '\n' + s += "static const unsigned char "+name+"[] = {\n" + s += "\t0x{:02x},0x{:02x},\n".format((len(v) & 0xff),((len(v)>> 8) & 0xff)) + for i in range(len(v)): + if (i%16 == 0): + s += '\t' + s += "0x{:02x}".format((v[i])) + if (i < len(v)-1): + s += ',' + if (i%16 == 15): + s += '\n' + s += '\n' + s += '};\n' + return s + +private_key = ec.generate_private_key(ec.SECP192R1(), default_backend()) +public_key = private_key.public_key() +pub_num = public_key.public_numbers() +pbk = base64.urlsafe_b64encode(b'\x04'+pub_num.x.to_bytes(24,'big')+pub_num.y.to_bytes(24,'big')) + +user_agent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7' + +data = urllib.parse.urlencode({'pubkey':pbk}).encode() +req = urllib.request.Request("https://www.henarejos.me/pico-hsm.php", data, {'User-Agent':user_agent,} ) #The assembled request +response = urllib.request.urlopen(req) +resp = response.read().decode('utf-8') +j = json.loads(resp) +cvcert = base64.b64decode(j['cvcert']) + +dica = [ + 0x7f,0x21,0x81,0xc5,0x7f,0x4e,0x81,0x8e,0x5f,0x29,0x01,0x00,0x42,0x0e,0x45,0x53, + 0x43,0x56,0x43,0x41,0x48,0x53,0x4d,0x30,0x30,0x30,0x30,0x31,0x7f,0x49,0x3f,0x06, + 0x0a,0x04,0x00,0x7f,0x00,0x07,0x02,0x02,0x02,0x02,0x03,0x86,0x31,0x04,0x93,0x7e, + 0xdf,0xf1,0xa6,0xd2,0x40,0x7e,0xb4,0x71,0xb2,0x97,0x50,0xdb,0x7e,0xe1,0x70,0xfb, + 0x6c,0xcd,0x06,0x47,0x2a,0x3e,0x9c,0x8d,0x59,0x56,0x57,0xbe,0x11,0x11,0x0a,0x08, + 0x81,0x54,0xed,0x22,0xc0,0x83,0xac,0xa1,0x2e,0x39,0x7b,0xd4,0x65,0x1f,0x5f,0x20, + 0x0e,0x45,0x53,0x44,0x56,0x43,0x41,0x48,0x53,0x4d,0x30,0x30,0x30,0x30,0x31,0x7f, + 0x4c,0x12,0x06,0x09,0x04,0x00,0x7f,0x00,0x07,0x03,0x01,0x02,0x02,0x53,0x05,0x80, + 0x00,0x00,0x00,0x04,0x5f,0x25,0x06,0x02,0x02,0x00,0x03,0x02,0x07,0x5f,0x24,0x06, + 0x02,0x05,0x01,0x02,0x03,0x01,0x5f,0x37,0x30,0x8b,0xb2,0x01,0xb6,0x24,0xfe,0xe5, + 0x4e,0x65,0x3a,0x02,0xa2,0xb2,0x27,0x2d,0x3d,0xb4,0xb0,0xc9,0xdd,0xbf,0x10,0x6d, + 0x99,0x49,0x46,0xd6,0xd0,0x72,0xc1,0xf3,0x4c,0xab,0x4f,0x32,0x14,0x7c,0xb0,0x99, + 0xb7,0x33,0x70,0xd6,0x00,0xff,0x73,0x0c,0x5d +] + +s = '#ifndef _CVCERTS_H_\n#define _CVCERTS_H_\n' +s += print_var(dica,'dica') +s += print_var(cvcert,'termca') + +pvk = private_key.private_numbers().private_value.to_bytes(24,'big') +s += print_var(pvk,'termca_pk') +s += '\n#endif\n' + +f = open('src/hsm/cvcerts.h','w') +f.write(s) +f.close() \ No newline at end of file