Archive for June, 2018

Car Registration #API now on #Bower


Bower is a cool front-end component manager for Javascript, CSS, and the like. We’ve just published our Car Registration API to Bower, as a component. – It’s not the recommended way to connect to our API, but just to help people out, here’s a sample.

A bower package as a simple wrapper for the Reg Check API, to use this library, run

bower install CarRegistrationAPI

Then include the scripts;

bower_components/Car Registration API/api.js

Finally call the API as follows

  lookup("Check","**your username**","**UK License Plate**",function(data){

You will need a username from Car Registration API to get started.

Categories: Uncategorized

Asymetric Encryption in C# and #Javascript

encrypt and decrypt

Here is a scenario, where you generate RSA asymetric encryption keys in C#, use the public key to encrypt a message, then decrypt it using Javascript.

First, generate a pair of keys in C#

RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(2048);
tbPublicKey.Text = rsa.ToXmlString(false); // false to get the public key
tbPrivateKey.Text = rsa.ToXmlString(true); // true to get the private key

I’ve selected a key length of 2014 bits, this gives an output cypher text of 255 bytes,  or 344 bytes when base64 encoded.

You then use code such as the following to encrypt:

static string EncryptText(string publicKey, string text)
// Convert the text to an array of bytes
UTF8Encoding byteConverter = new UTF8Encoding();
byte[] dataToEncrypt = byteConverter.GetBytes(text);

// Create a byte array to store the encrypted data in it
byte[] encryptedData;
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
// Set the rsa pulic key

// Encrypt the data and store it in the encyptedData Array
// MAX 245 bytes
encryptedData = rsa.Encrypt(dataToEncrypt, false);
// Base 64 encode enctrypted data
return Convert.ToBase64String(encryptedData);

Then the following code to decrypt

static string DecryptText(string privateKey, string cyphertext)
// read the encrypted bytes from the file
byte[] dataToDecrypt = Convert.FromBase64String(cyphertext);

// Create an array to store the decrypted data in it
byte[] decryptedData;
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
// Set the private key of the algorithm
decryptedData = rsa.Decrypt(dataToDecrypt, false);

// Get the string value from the decryptedData byte array
UTF8Encoding byteConverter = new UTF8Encoding();
return byteConverter.GetString(decryptedData);

Now, you may note the comment “// MAX 245 bytes”, This is important, since if you try to encrypt text over 245 bytes, the code will break. Note, I’m using UTF8 here, if you wanted to support chinese text, you’d need Unicode, which sets the max to 122

You can however, break the text into 245 byte chunks as follows; (Using a pipe char as a seperator)

static string EncryptLongText(string publicKey, string text)
var strOutput = “”;
var stringParts = Split(text, 245);
foreach(var stringPart in stringParts)
strOutput += EncryptText(publicKey, stringPart) + “|”;
return strOutput;

public static IEnumerable<string> Split(string str, int chunkSize)
if (string.IsNullOrEmpty(str) || chunkSize < 1)
throw new ArgumentException(“String can not be null or empty and chunk size should be greater than zero.”);
var chunkCount = str.Length / chunkSize + (str.Length % chunkSize != 0 ? 1 : 0);
for (var i = 0; i < chunkCount; i++)
var startIndex = i * chunkSize;
if (startIndex + chunkSize >= str.Length)
yield return str.Substring(startIndex);
yield return str.Substring(startIndex, chunkSize);

Then reverse the process with a Regex;

static string DecryptLongText(string privateKey, string text)
var strOutput = “”;
var stringParts = Regex.Split(text, @”\|”);
foreach (var stringPart in stringParts)
if (stringPart != “”) strOutput += DecryptText(privateKey, stringPart);
return strOutput;

That’s all there is to it in C#, now to turn to Javascript, you will need to look at the format of the keys;


The parts of the keys (elided with …) are in base64 format, you will need this in Hex format for Javascript, and a tool such as can do this online for you.

Then following the code example on – the values match up as follows;

Modulus: Modulus (hex): [n]

Exponent : Public exponent (hex, F4=0x10001): [e]

P: P (hex): [p]

Q: Q (hex): [q]

DP: D mod (P-1) (hex): [dmp1]

DQ: D mod (Q-1) (hex): [dmq1]

InverseQ : 1/Q mod P (hex): [coeff]

D : Private exponent (hex): [d]


Categories: Uncategorized

The specified plex is a the current system or boot plex. #SoftRaid #Raid


If you want to break a mirrored volume in Disk Management, because you want to resize the partition where your If you want to break a mirrored volume in Disk Management, because you want to resize the partition where your operating system is installed, then you may get the following error:

The specified plex is a the current system or boot plex. [sic]

As per KB 969749, the solution is detailed as follows, I’ve just added the commands required.
From an elevated Command Prompt, type diskpart to start DiskPart.

Microsoft DiskPart version 10.0.14393.0
Copyright (C) 1999-2013 Microsoft Corporation.
On computer: xxxxxx

Use the list volume command in DiskPart to list the volumes present on the system.

DISKPART> list volume
Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
———-  —  ———–  —–  ———-  ——-  ———  ——–
Volume 0     X   xxxx     NTFS   Spanned     xxxx MB  Healthy
Volume 1     X   xxxxx        NTFS   Mirror       xxx GB  Healthy    Boot
Volume 2         EFI          FAT32  Partition    xxx MB  Healthy    System
Volume 3         EFI          FAT32  Partition    xxx MB  Healthy    Hidden

Type the command select volume x to select the mirror volume, where x is the alphanumeric identifier of the mirror volume.

DISKPART> select volume 1
Volume 1 is the selected volume.

Determine the numeric identifier of the disk containing the plex you are currently booted into (“Boot Disk”) using the list disk, select disk, and detail disk commands.

DISKPART> list disk
Disk ###  Status         Size     Free     Dyn  Gpt
——–  ————-  ——-  ——-  —  —
Disk 0    Online          xxx GB  1024 KB   *    *
Disk 1    Online          xxx GB  1024 KB   *    *

DISKPART> select disk 0

Disk 0 is now the selected disk.

DISKPART> detail disk
INTEL xxxxx
Disk ID: {xxxx}
Type   : xxxx
Status : OnlinePath   : 0
Target : 0LUN ID : 0
Location Path : …..
Current Read-only State : No
Read-only  : No
Boot Disk  : Yes
DISKPART> select disk 1
Disk 1 is now the selected disk.
DISKPART> detail disk
INTEL xxxxx
Disk ID: {xxxxx}
Type   : xxxx
Status : Online
Path   : 0
Target : 0
LUN ID : 0
Location Path : …
Current Read-only State : No
Read-only  : No
Boot Disk  : No
Pagefile Disk  : Yes
Hibernation File Disk  : No
Crashdump Disk  : Yes
Clustered Disk  : No

If you try to break the disk without selecting the volume, then you get the following error:

DISKPART> break disk 1
There is no volume selected to break.Please select a dynamic mirror to break.

Use the command break disk n  to break the mirror, where n is the numeric identifier of the disk containing the mirror plex you are not currently booted from.The mirror will be broken, and both plexes will be converted to Simple volumes.

DISKPART> select volume 1
Volume 1 is the selected volume.
DISKPART> break disk 1
DiskPart successfully broke the mirror volume.

After this is done, you will have two simple volumes, rather than one mirrored volume which will be very similar in content. You can then use Disk Management to resize, the volumes, dealocate one of them, then select the boot volume and press Add Mirror to restore the Raid.


Categories: Uncategorized

Enhance your #MSSQL Security with two keywords in C#

3d database with padlock security concept

If your database server is on a different machine to your webserver, and the SQL queries travel through the network, then they are liable to be sniffed by third parties sharing the same network.

However, if you add the words:

Encrypt=True; TrustServerCertificate=True

To your connection string then the TDS data sent from client to server will be encrypted, and impossible to sniff from the network.

You can verify the connection is secure by running the following query;

SELECT session_id, net_transport, client_net_address, local_net_address,
local_tcp_port, auth_scheme, encrypt_option
FROM sys.dm_exec_connections

According to performance tests, I found no difference between the performance of secure vs plain text secure. over a batch of 200 queries.

Categories: Uncategorized

Car Registration #API available on #Python #PIP



This is an API Wrapper for Python for the API which allows you to get car data from it’s number plate in many countries across the globe, from the USA, Europe, Australia, and Africa. Is is available as a package on PIP and easy_install  

An account username and password is required from

When using the Generic “CarRegistration” function, the fourth parameter is an API endpoint, which can be one of;

  • Check (UK)
  • CheckBelgium
  • CheckCroatia
  • CheckCzechRepublic
  • CheckDenmark
  • CheckEstonia
  • CheckFinland
  • CheckFrance
  • CheckHungary
  • CheckIndia
  • CheckIreland
  • CheckItaly
  • CheckNetherlands
  • CheckNewZealand
  • CheckNigeria
  • CheckNorway
  • CheckPortugal
  • CheckRussia
  • CheckSlovakia
  • CheckSouthAfrica
  • CheckSpain
  • CheckSriLanka
  • CheckSweden
  • CheckUAE

For Australia and USA, you must also pass a state parameter, and therefore you must use the CarRegistrationUSA or CarRegistrationAustralia methods.


pip install CarRegistration

Usage (UK)

 from CarRegistration import *
 CarRegistration("BL64JTZ","***YOUR USERNAME***","***YOUR PASSWORD***","Check")

Usage (France)

 from CarRegistration import *
 CarRegistration("Eg258ma","***YOUR USERNAME***","***YOUR PASSWORD***","CheckFrance")

Usage (USA)

 from CarRegistration import *
 CarRegistrationUSA("H84jae","nj","***YOUR USERNAME***","***YOUR PASSWORD***")

Usage (Australia)

 from CarRegistration import *
 CarRegistrationAustralia("YHC14Y","NSW","***YOUR USERNAME***","***YOUR PASSWORD***")

Sample output

{u'RegistrationYear': u'2015', u'CarModel': {u'CurrentTextValue': u'208'}, u'NumberOfDoors': {u'CurrentTextValue': u'3'}, u'EngineSize': {u'CurrentTextValue': u'1397

And here’s the source code for those interested:

import urllib2, base64, json

def CarRegistration(registrationNumber, username, password):
request = urllib2.Request(“; + registrationNumber)
base64string = base64.encodestring(‘%s:%s’ % (username, password)).replace(‘\n’, ”)
request.add_header(“Authorization”, “Basic %s” % base64string)
result = urllib2.urlopen(request)
data = json.load(result)

Categories: Uncategorized

Detect #Phising links in user submitted urls in C#


If your website displays urls which are user-submitted, then you can use a free API by google called Safe Browsing (key required), to detect if these are phishing / malware urls – here is the code, with the Google API Key removed;

static bool IsMalware(string url)
var strRequestJson = File.ReadAllText(“requestjson.json”);
strRequestJson = strRequestJson.Replace(“*PLACEHOLDER*”, url);
WebClient wc = new WebClient();
var strurl = “;;
wc.Headers[HttpRequestHeader.ContentType] = “application/json”;
var strResult = wc.UploadString(strurl, strRequestJson);
if (strResult.Trim() == “{}”) return false;
return true;

You will also need the file requestjson.json set to copy always in the build options, with the following content;

“client”: {
“clientId”: “yourcompanyname”,
“clientVersion”: “1.5.2”
“threatInfo”: {
“platformTypes”: [ “WINDOWS” ],
“threatEntryTypes”: [ “URL” ],
“threatEntries”: [
{ “url”: “*PLACEHOLDER*” }

Categories: Uncategorized

Get automated notifications on #WindowsUpdate using C# and #WUApiLib


If you wanted to be notified as soon as a windows update is available on your server, but you don’t want it to be installed automatically, here is a script in C# that allows you to know when an update is ready.

It requires a COM library called WUApiLib which you can add via project > References

var updateSession = new UpdateSession();
var updateSearcher = updateSession.CreateUpdateSearcher();
updateSearcher.Online = false; //set to true if you want to search online
var searchResult = updateSearcher.Search(“IsInstalled=0 And IsHidden=0 And BrowseOnly=0”);
if (searchResult.Updates.Count > 0)
Console.WriteLine(“There are updates available for installation”);
foreach (IUpdate update in searchResult.Updates)
foreach (string kbaid in update.KBArticleIDs)
Console.WriteLine(“; + kbaid);
catch (Exception ex)
Console.WriteLine(ex.Message, “Error”);


Categories: Uncategorized