Simple code and decode of a string

maybe the 4GL functions base64-encode () and base64-decode () will suit you.

Thanks for answering!!!

[mention:9e4ee96fac634b8f91b580e1fb4f7e71:e9ed411860ed4f2ba0265705b8793d05] What I'm trying to do is validating that a customer has a legit sales receipt, as this will accumulate points that later he or she can cash-out.  So I'm devising some way to encode ticket number and total amount and stuff, print on purchase ticket, and then on appserver decode and validate the existence of that ticket.  What I want to avoid is a customer cashing out his ticket and the next 100 numbers..

[mention:9617a07f61934bc98f6fccb3b7fabfae:e9ed411860ed4f2ba0265705b8793d05] I had checked that functions (and other solutions) before posting... and I find it's a lot cumbersome for a customer to type all digestion characters to validate...

Do you agree?

Thanks again!!!

Simply validating that a sales receipt (or other numeric id) is (probably) legitimate can be done with a checksum.  There are many algorithms for that with varying degrees of usefulness.

Simply validating that a sales receipt (or other numeric id) is (probably) legitimate can be done with a checksum.  There are many algorithms for that with varying degrees of usefulness.

I agree, octavio. bas 64 is cumbersome for typing

why not generate a random number and print that on the ticket along with customer number. then store random number in customer record. when customer enters the matching number, you know he has the ticket.

thanks.

I was thinking to be able to encode-decode as I don't have customer id or otherwise any way to identify the holder of ticket.  I want to encode Ticket number and amount, and then descramble that to accumulate, and I'll get a this moment the cell number as a query (/rest?parameter=telNumbr ), so I'll add to that number from now on.