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5 digit alpha numeric code generating logic - Unique request

 
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numr

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Joined: 02 Apr 2005
Posts: 4

PostPosted: Wed Jan 02, 2008 11:02 am    Post subject: 5 digit alpha numeric code generating logic - Unique request
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Please help to provide

5 digit alpha numeric code to be generated. It should be unique.
We will be doing the above code in Cobol.

tHANKS
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rajaherein

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Joined: 11 Jan 2007
Posts: 23
Location: chennai

PostPosted: Wed Jan 02, 2008 1:26 pm    Post subject: Reply to: 5 digit alpha numeric code generating logic - Uniq
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Hi,

Please post your requirements clearly. We need more info to help you.
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numr

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Joined: 02 Apr 2005
Posts: 4

PostPosted: Wed Jan 02, 2008 1:42 pm    Post subject: Reply to: 5 digit alpha numeric code generating logic - Uniq
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Hi

We need to generate a security number for all records and the security number should be unique.

Eg: Security 1 -- > AB001
Security 2 -- > CF345

ETC..

Need a unique number and the number should not go out of series for minimum 10 years..

Please help to provide any solution.

Eg: A0001 , A0002 , A0003 AB001, AB002
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murmohk1

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Joined: 29 Jun 2006
Posts: 1439
Location: Bangalore,India

PostPosted: Wed Jan 02, 2008 1:51 pm    Post subject:
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numr,

Why dont you generate sequence number (like 00000,00001 etc..). Once you reach '99999' generate alphanumeric numbers.

You need to put your effort for this and dont expect we will do 'your work'. If you face any problem, we are here to help you.
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10255
Location: italy

PostPosted: Wed Jan 02, 2008 1:52 pm    Post subject: Reply to: 5 digit alpha numeric code generating logic - Uniq
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is this some kind of homework...

I would say that relying on forum replies for security related question is not a company wise approach..

even ATM application rely on a 5 all numeric digit and do not require uniqueness..

Review Your security needs,
use a longer string,
use some kind of ashing technique
review the uniqueness requirement

have somebody review/audit Your organization security
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enrico-sorichetti

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Joined: 14 Mar 2007
Posts: 10255
Location: italy

PostPosted: Wed Jan 02, 2008 1:57 pm    Post subject: Reply to: 5 digit alpha numeric code generating logic - Uniq
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Quote:
use some kind of ashing technique


sorry for replying to my own post, I just found the humor of a typo
ashing the data will certainly provide TOP security

c ashing hashing

thank You
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sxc

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Joined: 05 Oct 2007
Posts: 1
Location: Bangalore

PostPosted: Thu Jan 10, 2008 11:36 am    Post subject: Reply to: 5 digit alpha numeric code generating logic - Uniq
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Hi Numr,


please go through the below the link for logic and code

http://ibmmainframes.com/about12680.html



Thanks
SXC.
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