RSA_Signing.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "import Crypto\n",
    "from Crypto.PublicKey import RSA\n",
    "from Crypto import Random\n",
    "import base64\n",
    "uuid = \"gh342454cgfdg675\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'022e5eaca87f6e79789b0f8b7e6e56e22ea5e6ef849a3c82ebee1698e3b7c036'"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from Crypto.Hash import SHA256\n",
    "sha=SHA256.new(uuid).hexdigest()\n",
    "sha"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "random_generator = Random.new().read\n",
    "txRSA = RSA.generate(1024, random_generator)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {
    "collapsed": true
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "-----BEGIN RSA PRIVATE KEY-----\n",
      "MIICWwIBAAKBgQC5rcfYyghHJkuqjRcPSPwD7eia/VTbAwiw3Skb8/vXn8SL6j/T\n",
      "F8Uz33Is6Eh7o4Limxpy9D3SFblQ1tec/qjfCTCVqvGG/dN/NBV7NHRDpH+ah5+7\n",
      "d9Ih77b9ZIlgOCVpbxV2a481TRG2vm2BOrgaSXnJ6FGf/Pz9DGMxU7IsqQIDAQAB\n",
      "AoGAB6ZNMXVBWg0N2PzvEkYje9X1W01MjalWVlMGOoyWt49xfYItFvlHupdeENOR\n",
      "COb3oXZaZJoDYgBbHiV7xJAJTPUO5mLiNsMk3E6cR1VFicYb9bz8HjG6NCHXtT8h\n",
      "BkkHHBzicTvk/fuF8cF7Lmi2MmU842agZEphHz4vajJP78ECQQDTcs6Tfbg8lVIa\n",
      "gt+kMZtMIiAFUDmj+aJo8RlajExkiOQdCKp6H2lshcjLyIzdQPYn0HAPeQn/KH48\n",
      "xuqtIvelAkEA4M0AMM5LZwPSgdA+HmZmAhvhk/WzVeTWX1hfB39olgoEwI0qKDfe\n",
      "CGAxgqyM1mRDSMsLYuqDhjq91W02LcCxtQJAGmA00oMZKz15G2N94C5r78hF9EO4\n",
      "nPKzxqFkhz3+/X9x7Qk6srceYHIjxP/ESoki6359rABuNczoSk6J0YUOHQJAYv5j\n",
      "oxp1Yfvw63GEqWZ2bV9RyxJb0ute68XCs06MA+aNiS2g7u0LPaz+oIjTzGWCq7+e\n",
      "WATlvmqHxkC9pxBAMQJAIl3x5QLm/5sAnE08MT/HxYntDB9CwisBz9MvFhlEedDs\n",
      "2+wA9D0PGVJbbM8M1fy6q83ZFs/77DITx+cXhKFREw==\n",
      "-----END RSA PRIVATE KEY-----\n",
      "-----BEGIN PUBLIC KEY-----\n",
      "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC5rcfYyghHJkuqjRcPSPwD7eia\n",
      "/VTbAwiw3Skb8/vXn8SL6j/TF8Uz33Is6Eh7o4Limxpy9D3SFblQ1tec/qjfCTCV\n",
      "qvGG/dN/NBV7NHRDpH+ah5+7d9Ih77b9ZIlgOCVpbxV2a481TRG2vm2BOrgaSXnJ\n",
      "6FGf/Pz9DGMxU7IsqQIDAQAB\n",
      "-----END PUBLIC KEY-----\n"
     ]
    }
   ],
   "source": [
    "print txRSA.exportKey() #privateky\n",
    "pubkey=txRSA.publickey().exportKey()\n",
    "print pubkey"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "69304172085658673512462670413590634318145262078752239615154669742911500851181615448230905250591930207084477242186294082021092600320825370619624463725254765098132589023616825590880058345117344957503846381820740276199277821955360553150967394253431906038500109998987947846113093098028913764537315941229262169734L"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sigL = txRSA.sign(sha,None)[0]\n",
    "sigL"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "def toByteArray(i):\n",
    "    b = bytearray()\n",
    "    while i:\n",
    "        b.append(i & 0xFF)\n",
    "        i >>= 8\n",
    "    return b[::-1]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      " bytearray(b\"b\\xb1B=\\xe6\\xcf\\xd2\\xd5,\\xd4;n\\xd4\\xa7-vZ\\x15\\xee-_\\x95\\x93\\x00u\\xc9\\x9c\\x93\\xb6\\xf2\\xc3\\xa3LC\\xeck4D\\xbdw\\x07\\xb4\\xfc3k\\x05\\x82\\x8c\\x1ahi?\\xde\\x1e\\xef\\xe1\\x95\\x93cN\\x1d\\x84o\\xfe\\xb4\\xbe\\xd7}w5\\x02\\x99\\xd5\\xc8\\x00\\xed\\xf1\\xe1k+t`\\'|go\\x01\\x8dWv3(\\xd2\\xba\\xa7\\xd3j\\xe6M\\xa1!\\x86#\\x126\\xa6\\xa9R\\xd4\\x80\\x03\\xb5\\xf5(\\xda\\xdc\\xfd\\xd1\\xf3\\xd6\\x83\\xf4\\xb1\\xc1[Vf\\x86\")\n",
      "YrFCPebP0tUs1Dtu1KctdloV7i1flZMAdcmck7byw6NMQ+xrNES9dwe0/DNrBYKMGmhpP94e7+GVk2NOHYRv/rS+1313NQKZ1cgA7fHhayt0YCd8Z28BjVd2MyjSuqfTauZNoSGGIxI2pqlS1IADtfUo2tz90fPWg/SxwVtWZoY=     # 172\n"
     ]
    }
   ],
   "source": [
    "ba = toByteArray(sigL)\n",
    "print repr(ba)\n",
    "Signature=base64.b64encode(ba)\n",
    "print Signature,\"    #\",len(Signature)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### in RX"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "rxuuid = uuid\n",
    "rxSignature = Signature\n",
    "\n",
    "rxsha=SHA256.new(rxuuid).hexdigest()\n",
    "\n",
    "rxRSA = RSA.importKey(pubkey)\n",
    "\n",
    "def bytes_to_int(byte_array):\n",
    "    return int(byte_array.encode('hex'), 16)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "69304172085658673512462670413590634318145262078752239615154669742911500851181615448230905250591930207084477242186294082021092600320825370619624463725254765098132589023616825590880058345117344957503846381820740276199277821955360553150967394253431906038500109998987947846113093098028913764537315941229262169734\n"
     ]
    }
   ],
   "source": [
    "rxSignatureL = bytes_to_int(base64.b64decode(rxSignature))\n",
    "print rxSignatureL"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "rxRSA.verify(rxsha,(rxSignatureL,))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 2",
   "language": "python",
   "name": "python2"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 2
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython2",
   "version": "2.7.12"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 1
}