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I am working on Payment Gateway. for data encryption and decryption I want to write encryption key for particular extension at the time of installation.

My question is which is the better way to manage key specific to particular extension ?

can I write key in module config.xml file ? Or Can i write one new file in module to generate key ?

Please help

1 Answer 1

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During installation you can generate key and store it in database in core_config_data.

Mage::getConfig()->saveConfig('path/to/config_value', $value, $scope, $scopeId);

Also you can make this config field editable in System->Configuration. So customer can change encryption key.

In addition in configuration you can add regenerate button, to allow admin to regenerate encryption key.

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