Device, system, and method for processor-based data protection

A method for processor-based data protection on a mobile computing device, the method comprising:

• accessing, with a central processing unit of the mobile computing device, data stored in a memory of the mobile computing device;
• determining, with the central processing unit, that the accessed data is encrypted based on a state of a flag of at least one control register of the central processing unit;
• and
• decrypting, in response to determining that the accessed data is encrypted, the accessed data using a cryptographic symmetric key stored in the central processing unit.

At least one computer-readable storage medium comprising a plurality of instructions that in response to being executed result in a mobile computing device:

• accessing, with a central processing unit of the mobile computing device, data stored in a memory of the mobile computing device;
• determining the state of an encryption property flag of a first control register of the central processing unit, wherein the encryption property flag indicates whether data encryption has been enabled for the accessed data;
• determining the state of an encryption state flag of a second control register of the central processing unit, wherein the encryption state flag indicates whether the access data is stored in an encrypted state or a decrypted state;
• determining that the accessed data is encrypted based on the state of the encryption property flags of the control registers of the central processing unit;
• and
• decrypting, in response to determining that the accessed data is encrypted, the accessed data using a cryptographic symmetric key stored in the central processing unit.