Profile deletion codes in subscription management systems

A device, comprising:

• a microprocessor smart card configured to store a Mobile Network Operator (MNO) profile for the device, wherein the MNO profile comprises one or more network access credentials for accessing a wireless mobile network;
• a communication interface configured to connect to the wireless mobile network;
• a processing unit, or logic, coupled to the microprocessor smart card and the communication interface, and configured to:
• receive a customer request to delete the MNO profile from the microprocessor smart card,
• send, via the communication interface and the wireless mobile network, a request for profile deletion to a network node external to the device;
• receive, via the communication interface and responsive to the request, a deletion code from the network node,
• extract, from the received deletion code:
• a deletion code signature,
• a public key of the network node,
• a smart card identifier (ID), and
• a profile ID;
• validate the deletion code signature and the public key,
• validate the smart card ID and the profile ID;
• and
• delete the MNO profile from the smart card upon successful validation of:
• the deletion code signature,
• the public key,
• the smart card ID, and
• the profile ID.

A non-transitory storage medium storing instructions executable by a processing unit associated with a mobile device, wherein the instructions comprise instructions to cause the processing unit to:

• receive a customer request to delete a Mobile Network Operator (MNO) profile from a smart card within a mobile device, wherein the MNO profile comprises one or more network access credentials for accessing a wireless mobile network;
• send, from the mobile device to a network node in the wireless mobile network, a request for profile deletion;
• receive, responsive to the request from the network node, a deletion code;
• extract, from the received deletion code:
• a deletion code signature,
• a public key of the network node,
• a smart card identifier (ID), and
• a profile ID;
• validate the deletion code signature and the public key;
• validate the smart card ID and the profile ID;
• and
• delete the MNO profile from the smart card upon successful validation of:
• the deletion code signature,
• the public key,
• the smart card ID, and
• the profile ID.