| Date: | Wed, 23 Feb 2005 09:47:19 +0300 |
| From: | Edward Mugerwa Buyondo <e.mugerwa [...] mtc.com.bh> |
| Subject: | Bug in 'Convert::ASN1 - ASN.1 ' -- Handling OCTET STRING |
| To: | 'Graham Barr' <gbarr [...] pobox.com> |
| CC: | bug-Convert-ASN1 [...] rt.cpan.org |
Dear Graham;
It seems that we have a bug in Convert::ASN1.
1. I have this ASN1 description:
-- Start
GsmChargeableSubscriber ::= [APPLICATION 286] SEQUENCE
{
imsi Imsi OPTIONAL,
msisdn Msisdn OPTIONAL
}
Msisdn ::= [APPLICATION 152] BCDString
Imsi ::= [APPLICATION 129] BCDString
BCDString ::= OCTET STRING
-- End
2. These are the values I want to encode
msisdn = 239227362532
imsi = 262097352084232
3. If I encode using Convert::ASN1 and use another tool to decode I get the
following from this tool
msisdn = 3233393232373336
imsi = 3236323039373335
And it gives me an error <<ASN.1 ERROR!>>
(As if it is adding a 30 to each digit, e.g. 2 becomes 32)
4. However if I use Convert::ASN1 to decode (What I encoded with
Convert::ASN1) I get back the original values correctly
5. But if I decode the same values from various sources (These where not
encoded with Convert::ASN1) using Convet::ASN1 I get something completely
different
msisdn = "#\222'6%2",
imsi = "& \2275 \204#/"
I greatly appreciate your advice.
Regards;
Edward
Show quoted text
-----Original Message-----
From: Graham Barr [mailto:gbarr@pobox.com]
Sent: Wednesday, January 26, 2005 6:16 PM
To: Edward Mugerwa Buyondo
Subject: Re: Request for Examples/Info on using 'Convert::ASN1 - ASN.1
Encode/Decode library' for data processing
Edward,
For an example of use I suggest you look at the Net::LDAP modules in the
perl-ldap distribuition on CPAN
http://search.cpan.org/dist/perl-ldap/
Graham.
On Wed, January 26, 2005 6:25 am, Edward Mugerwa Buyondo said:
> Dear Graham;
>
> I picked interest in the module and would like to see how I can apply it
> in Call Detail Processing for roaming(GSM). However, I don't have
> illustrative examples or information that I can rely on to 'peck' at
> this module. My interest in is to see how I can put perl into telcom
> processing...
>
> For example If I have call data how can specify that the
> CallerNumber=36040952, CalledNumber=900, CallDateTime,CallDuration, etc
> etc. ..
>
> This is to request for your help in this.
>
> Thanks;
> Edward Mugerwa
> MTC-Vodafone
> Manama,Bahrain
>
>
>
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>
>
-----------------------------Disclaimer------------------------------
This communication is intended for the above named person and is confidential and / or legally privileged.
Any opinion(s) expressed in this communication are not necessarily those of the MTC Vodafone Bahrain. If it
has come to you in error you must take no action based upon it, nor must you print it, copy it, forward it,
or show it to anyone. Please delete and destroy the e-mail and any attachments and inform the sender
immediately. Thank you.
MTC Vodafone Bahrain is not responsible for the political, religious, racial or partisan opinion in any
correspondence conducted by its domain users. Therefore, any such opinion expressed, whether explicitly or
implicitly, in any said correspondence is not to be interpreted as that of MTC Vodafone Bahrain.
MTC Vodafone Bahrain may monitor all incoming and outgoing e-mails in line with MTC Vodafone Bahrain business
practice. Although MTC Vodafone Bahrain has taken steps to ensure that e-mails and attachments are free from
any virus, we advise that, in keeping with best business practice, the recipient must ensure they are actually
virus free.
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