I have 3 Websites hosted on my AEM platform, each using Google reCaptcha. Each website are completely different, but they use the similar service Google reCaptcha service. Each website has their own separate "public key".
What is the best way to configure each website, so that the keys are only expose to specific websites? OSGI configurations, configuration on the recaptcha component, configuration in page properties, etc?
A basic approach that I've seen used successfully is to put a site-specific property at the root page of the site, like at /content/site1/en_us, and then adjust the component to inherit that property using InheritanceValueMap like this:
InheritanceValueMap ivmap = new ComponentInheritanceValueMap(resource);
String captchakey = ivmap.getInherited("captchakey", String.class);