regarding hashcode in .net

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i have a problem, i need to generate a hash code of length 5 characters
but the input is 10 digit number. The hash code should be unique .
if any one can kindly post a solution that would be great.

Posted 27-Apr-10 13:45pm

santoshamrutha

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Christian Graus · Accepted Answer · 2010-04-27T13:52:00

One possible solution is to take each pair of numbers and turn it into a single character. As you'll have 100 characters to choose from, you'll end up using letters, numbers, and punctuation marks. There's no way to make a unique 5 character hash for every 10 digit number without including those characters, there's just not enough characters there.