Memory device data security based on content-addressable memory architecture

A method comprising:

• receiving, at a media controller, an access request comprising a physical page address corresponding to a primary memory block of a memory device, an input security key, and a logical page address corresponding to the physical page address;
• providing, by the media controller, the input security key as input to a content-addressable memory (CAM) block of the memory device, the CAM block storing a plurality of security keys, the CAM block comprising an array of memory cells organized into a plurality of strings, each string in the plurality of strings being mapped to one of a plurality of logical page addresses in accordance with a predetermined mapping, each string storing one of the plurality of security keys;
• verifying, by the media controller, the input security key matches a stored security key stored by the CAM block based on an indication provided by the CAM block in response to receiving the input security key as input;
• verifying, by the media controller, that the stored security key corresponds to the logical page address included in the access request based the predetermined mapping;
• and
• based on verifying that the stored security key corresponds to the logical page address included in the access request, performing, by the media controller, an access operation at the physical page address in accordance with the request.

A non-transitory computer-readable storage medium comprising instructions that, when executed by a media controller, configure the media controller to perform operations comprising:

• receiving an access request comprising a physical page address corresponding to a primary memory block of a memory device, the request comprising an input security key and a logical page address corresponding to the physical page address;
• providing the input security key as input to a content-addressable memory (CAM) block of the memory device, the CAM block storing a plurality of security keys, the CAM block comprising an array of memory cells organized into a plurality of strings, each string in the plurality of strings being mapped to one of a plurality of logical page addresses in accordance with a predetermined mapping, each string storing one of the plurality of security keys;
• verifying the input security key matches a stored security key stored by the CAM block based on an indication provided by the CAM block in response to receiving the input security key as input;
• verifying that the stored security key corresponds to the logical page address included in the access request based the predetermined mapping;
• and
• based on verifying that the stored security key corresponds to the logical page address included in the access request, performing, by the media controller, an access operation at the physical page address in accordance with the request.