Solved

asp.net  (General Query)

Posted on 2013-02-04
7
164 Views
Last Modified: 2013-02-12
Hi,

I am having an official document through which Dealer can make sales or purchases.

This offical document is required by the dealer to have concession when he purchases something from other states.

This offical document is called concession Form.

Each concession form for has a serial no that can not be duplicate.

so suppose a Dealer is approved 5 concession Forms and I send him the email containing as pdf version of the forms as attachement i.e  electronical transfer of the concession forms, then I am concerned with the Security of these forms such as they should not be duplicated by some other dealer.

I can do watermark on them but watermark can also be scanned.

If someone scans them and can make use of the forms for their own purpose instead of the intented person that's problem to be sorted out.

can anyone help me!
0
Comment
Question by:Dinesh Kumar
  • 4
  • 2
7 Comments
 
LVL 38

Expert Comment

by:Tom Beck
Comment Utility
Document security holograms perhaps?

http://www.highsecuritypaper.com/security-holograms.html

Or you could move the entire process online behind a login for an https secure site.
0
 
LVL 25

Expert Comment

by:Rouchie
Comment Utility
All imagery can be forged given someone who is determined enough.  You say that the only unique field is the serial number, so, that means you need to keep a track of these serial numbers and how they have been used.
This would require a data store (easiest in database form) that stores the serial numbers, and when they were used (as simple as SERIAL NUMBER and DATE USED, although you could also add Dealer information).
You would then have to search this database before each serial number was used/approved (or whatever you do with them) to ensure the serial number hasn't already been used elsewhere.
This is a very broad question so no doubt you will receive a load of other useful answers...!
0
 

Author Comment

by:Dinesh Kumar
Comment Utility
Ok Rouhie, basically what happens suppose I am approved 5 forms having serial no from 100 to 104 then I will use these forms to make interstate purchase and once I use them then I need to tell the authority who issues these forms that I have used them by uploading the information from the windows application to the Online Server so that means while uploading I have to ensure the following to avoid duplication.

1) If this is the dealer which was approved the forms having these serial numbers.
2) If these serial numbers usages have already not uploaded to the server, if yes that means forms duplicated otherwise not.

and Tommyboy, Document security holograms is like watermark having more varying complexity?
0
What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

 
LVL 25

Accepted Solution

by:
Rouchie earned 500 total points
Comment Utility
Are the serial numbers logged when the form is issued to the dealer?  That would be best so you know who has each serial number in advance, so when they are submitted you can check the dealer+serial combination.
0
 

Author Comment

by:Dinesh Kumar
Comment Utility
Yes, serials numbers are logged.
0
 

Author Comment

by:Dinesh Kumar
Comment Utility
and I also need for the security related with PDF document when its get printed on the paper. I couldn't understan http://www.highsecuritypaper.com/security-holograms.html
0
 

Author Closing Comment

by:Dinesh Kumar
Comment Utility
Thanks.
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

Healthcare organizations in the United States must adhere to the guidance of both the HIPAA (Health Insurance Portability and Accountability Act) and HITECH (Health Information Technology for Economic and Clinical Health Act) for securing and protec…
Never store passwords in plain text or just their hash: it seems a no-brainier, but there are still plenty of people doing that. I present the why and how on this subject, offering my own real life solution that you can implement right away, bringin…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

6 Experts available now in Live!

Get 1:1 Help Now