Blackberry PIN verification

Do BlackBerry phone开发者_StackOverflows have any PIN-number verification function, similar to credit cards, which use last digit (a.k.a. check digit) for verification?

I am doing some order processing on my site, and users have to enter their BlackBerry PIN. Of course, once in a while they type it wrong. If there was some known verification function I would be able to spot this right away and ask the user to correct it.

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you can try checking the pin that user input was in hex

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website using javascript could do check like this

var hex=/^[0-9a-fA-F]*$/; if (hex.test(pin)==false) { do what u want with it }