Try this java class:
------------------------
public class NETWPIN {
public static void main(String[] args) {
String IMSI = "404020506708200";
byte[] key = getKeyFromIMSI(IMSI);
String NETWPIN = bytesToHex(key);
System.out.println("NETWPIN from imsi: " + NETWPIN);
}
private static byte[] getKeyFromIMSI(String imsi) {
imsi = imsi.trim();
if ((imsi.length() % 2) == 1) {
imsi = "9" + imsi;
} else {
imsi = "1" + imsi;
imsi = imsi + "F";
}
int numDigit = imsi.length();
String temp = null;
char c1 = 0;
char c2 = 0;
byte b = 0;
byte[] key = new byte[numDigit / 2]; // always even
int t = 0;
for (int i = 0; i < numDigit; i++) {
c1 = imsi.charAt(i);
c2 = imsi.charAt(++i);
temp = "" + c2 + c1;
try {
key[t] = (byte) (Integer.parseInt(temp, 16));
} catch (Exception ex) {
ex.printStackTrace();
}
t++;
}
return key;
}
private static String bytesToHex(byte[] b) {
StringBuffer buf = new StringBuffer("");
for (int i = 0; i < b.length; i++) {
buf.append(byteToHex(b[i]));
}
return buf.toString();
}
private static String byteToHex(byte b) {
// Returns hex String representation of byte b
char hexDigit[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
char[] array = {hexDigit[(b >> 4) & 0x0f], hexDigit[b & 0x0f]};
return new String(array);
}
}
Regards
--
Abdulmnem Benaiad
Almontaha CTO
Tripoli-Libya
www.almontaha.ly
about.me <http://about.me/benaiad/bio>
On Wed, Oct 13, 2010 at 6:22 PM, Harmeet Singh
<[email protected]>wrote:
> Hi,
>
>
>
> Please help me in understanding how to use NETWPIN with kannel to send OTA
> settings.
>
>
>
> I think i am missing how to calculate HMAC code.
>
>
>
> Will be grateful for any kind of hint .
>
>
>
>
>
> Regards
>
> Harmeet Singh
>
>
>
> *From:* Harmeet Singh [mailto:[email protected]]
> *Sent:* 12 October 2010 15:29
> *To:* 'Benaiad'
> *Cc:* 'kannel users'
> *Subject:* RE: Regarding IMSI No
>
>
>
> Greetings ,
>
>
>
> Thanks for the reply.
>
>
>
> According to the document i had calculate the NETWPIN but again same
> message is there i.e Authentication failed .
>
>
>
> My IMSI no is 404020506708200 as per the document i had calculated as 49 40
> 20 50 60 07 28 00 .
>
>
>
> 9 is used to pair.
>
>
>
> It is not working , Please help me in calculating above IMSI no to NETWPIN
> for Kannel.
>
>
>
> Regards
>
> Harmeet Singh
>
>
>
> *From:* Benaiad [mailto:[email protected]]
> *Sent:* 12 October 2010 11:36
> *To:* Harmeet Singh
> *Cc:* kannel users
> *Subject:* Re: Regarding IMSI No
>
>
>
> Hi,
>
>
>
> This document may help to explain the process of calculating the NETWPIN:
>
>
>
> http://www.nowsms.com/discus/messages/1/OTA_Motorola-3137.pdf
>
>
> Regards
>
> --
>
> Abdulmnem Benaiad
>
> Almontaha CTO
>
> www.almontaha.ly
>
> Tripoli-Libyan
>
>
>
> On Tue, Oct 12, 2010 at 7:17 AM, Harmeet Singh <[email protected]>
> wrote:
>
> Greetings,
>
>
>
> I am able to send the OTA Settings Message by using Kannel and UserPin has
> been used , But i want to use Netwpin (Imsi No) .
>
>
>
> I had already verified my IMSI no and it is ok . It has 15 digit .
>
>
>
> After reading and searching i came to know that we should provide Netwpin
> as semi-octets .
>
>
>
> Please help me to know how can i use Netwpin to send the OTA settings.
>
>
>
> Regards
>
> Harmeet Singh
>
>
>
>
>
>
>
