Payment-Gateway-Client

A payment gateway client collect data , encrypt it and send to server. Get encrypted response from server decrypt the data.

parameters-

1. bank_ifsc_code
2. bank_account_number
3. amount
4. merchant_transaction_ref
5. transaction_date:
6. payment_gateway_merchant_reference

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Encryption Steps -

Step 1 - Create a payload of user data like -

bank_ifsc_code=ASDF1012202|bank_account_number=6523258962|amount=100000|merchant_transaction_ref=TXN1021|transaction_date=24-06-2017|payment_gateway_merchant_reference=MRCH1025

Step 2 -
Creates SHA1 hash of payload

Step 3 - Concatenate SHA1 hash of with payload and encrypt it using open ssl AES-128-CBC algoritham