During operation, a host computer may receive, associated with an electronic device, contact information of a user of the electronic device and input data for a hash function. Then, the host computer may verify the electronic device based at least in part on an identifier of the electronic device and stored device information. Alternatively, the host computer may jointly perform a verification process with a verification computer to verify the electronic device. Next, the host computer may generate a hashed version of the contact information based at least in part on the input data and the hash function. Moreover, the host computer may provide, addressed to a partner computer, the hashed contact information and a request for the provisioning data. Furthermore, the host computer may selectively receive, associated with the partner computer, the provisioning data, and the host computer may selectively provide, addressed to the electronic device, the provisioning data.