Hash Computation
After a concluded PAY transaction and the above parameters were sent to your servers as response. Using the above parameters:-
- productid (product id as returned by WebPAY)
- txn_ref (transaction reference as returned by WebPAY)
- MAC Key (MAC Key used for WebPAY)
where ‘+’ represents string concatenation of values (i.e., “a” + “b” = “ab”).
Hash Computation Example
For example for a transaction with the following field values –
1) txn_ref – MYC_060616_31
2) product_id – 6207
3) MacKey –
CEF793CBBE838AA0CBB29B74D571113B4EA6586D3BA77E7CFA0B95E278364EFC4526ED7BD255A366CDDE11F1F607F0F844B09D93B16F7CFE87563B2272007AB3
String to be hashed =
6207MYC_060616_31CEF793CBBE838AA0CBB29B74D571113B4EA6586D3BA77E7CFA0B95E278364EFC4526ED7BD255A366CDDE11F1F607F0F844B09D93B16F7CFE87563B2272007AB3
After computing value…
Hash =
511F7BBA87B15BD727F4BC20EE071DD86E6DF71D427A749BEEBA4C1A8808C2D3F82C14DCE1DB9D757E5F592DC9D7A4C20CDAC14CC70784EA42F08DB5B3FB3687
A good resource where you can check the hash you;re generating can be found at the link below-
