Securing The Entry Link

Adding the unique user ID and the HMAC adds a layer of security which prevents fraudulent link manipulation.

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HMAC

The hash-based message authentication code (hmac) value is an MD5 hmac hash of the unique_user_id and the demographic parameters from the entry link.

The hmac is used to verify the integrity and authenticity of a message.

Router Entry Links

To ensure the integrity of the router entry link, suppliers are required to include a unique_user_id parameter and append the entry link with an hmac value.

All suppliers are provided with a base entry link.

Secure entry link that includes the unique user ID and hmac parameters.

Router With a Deeper Integration

A deeper integration for the router is when a supplier includes at least ONE piece of demographic data in the entry link.

Base entry link.

Deeper integration router link:

New entry link that includes demographic data and hmac parameters.

Basic API Calls

Suppliers that utilize the Basic API call receive an incomplete entry link from Cint.

To complete the entry link, suppliers are required to append the entry link with a unique_user_id and hmac.

Incomplete API entry link.

Complete API entry link.