Cryptographic computations for memory regions

An electronic device comprising:

• a memory to store information associated with a target system;
• a memory transducer comprising a controller, the controller to:
• receive, from a validator system, a validation request comprising address information identifying a memory region in the memory to validate, wherein the information in the memory is inaccessible to the validator system, and wherein the target system is separate from the validator system,
• determine whether the address information in the validation request identifies the memory region with a size exceeding a threshold size, wherein the size being less than the threshold size indicates an error condition,
• based on a determination that the size of the memory region identified by the address information in the validation request exceeds the threshold size, retrieve the information from the memory region in the memory,
• compute a cryptographic value based on the retrieved information, and
• send, from the controller to the validator system, an output based on the cryptographic value as a response to the validation request;
• and
• a comparator to compare the computed cryptographic value to a reference cryptographic value, and based on determining the computed cryptographic value does not match the reference cryptographic value, set a compromise indicator indicating to the validator system a potential compromise of the information in the memory region identified by the address information.

A method comprising:

• receiving, at a controller from a validator system in an electronic device, a validation request comprising address information identifying a memory region in a memory to validate, wherein the memory is associated with a target system to be validated and the memory is inaccessible to the validator system, and wherein the target system is part of the electronic device and is separate from the validator system;
• determining, by the controller, whether the address information in the validation request identifies the memory region with a size exceeding a threshold size, wherein the size being less than the threshold size indicates an error condition;
• based on a determination that the size of the memory region identified by the address information in the validation request exceeds the threshold size, retrieving, by the controller, information from the memory region in the memory identified by the address information;
• computing, by the controller, a cryptographic value based on the retrieved information;
• sending, from the controller to the validator system, an output based on the cryptographic value as a response to the validation request;
• comparing, by a comparator, the computed cryptographic value to a reference cryptographic value;
• and
• based on determining the computed cryptographic value does not match the reference cryptographic value, setting, by the comparator, a compromise indicator indicating to the validator system a potential compromise of the information in the memory region identified by the address information.