Hardware license verification

A system comprising:

• a logic circuit configured to:
• receive a first part of a license payload and a license signature covering the license payload, the license signature being generated using a private encryption key,
• store a public encryption key associated with the private encryption key, and
• enable functionality of circuitry specified in the license payload when the license signature is verified;
• a secure memory communicatively coupled to the logic circuit, the secure memory configured to:
• store a second part of the license payload, a central processing unit (CPU) being unable to modify the second part of the license payload;
• and
• a cryptography engine communicatively coupled to the logic circuit, the cryptography engine configured to:
• generate a hash using the first part and the second part of the license payload, and
• verify the license signature using the hash and the public encryption key.

A system comprising:

• a logic circuit configured to:
• receive a first part of a license payload and an encrypted license signature covering the license payload, and
• enable functionality of circuitry specified in the license payload when the encrypted license signature is verified;
• a secure memory communicatively coupled to the logic circuit storing a second part of the license payload that cannot be modified by a central processing unit (CPU);
• and
• a cryptography engine communicatively coupled to the logic circuit, the cryptography engine configured to verify the encrypted license signature using the first part and the second part of the license payload.