ISA accessible physical unclonable function

A method comprising:

• decoding an instance of a single instruction having a field for an opcode to indicate that execution circuitry is to encrypt at least secret information from an input data structure with either a physical unclonable function (PUF) generated encryption key or a virtual PUF key, bind the encrypted secret information to an identified target, update the input data structure, generate a MAC over the updated data structure, store the MAC in the input data structure to generate a wrapped output data structure, store the wrapped output data structure having the encrypted secret information and an indication of the target wherein the execution circuitry is to clear a zero flag (ZF) when the secret information is encrypted successfully, and the execution circuitry is to set the ZF to one otherwise;
• and
• executing the decoded instruction according to the opcode.

A non-transitory machine-readable medium storing an instance of a single instruction that, when processed by one or more processors, is cause the one or more processors to:

• decode the single instruction having a field for an opcode to indicate that execution circuitry is to encrypt at least secret information from an input data structure with either a physical unclonable function (PUF) generated encryption key or a virtual PUF key, bind the encrypted secret information to an identified target, update the input data structure, generate a MAC over the updated data structure, store the MAC in the input data structure to generate a wrapped output data structure, store the wrapped output data structure having the encrypted secret information and an indication of the target, wherein the input data structure is to include a field to identify a challenge used by the PUF to generate the key;
• and
• execute the decoded instruction according to the opcode.