Authenticated modification of memory system data

A host system, comprising:

• one or more interfaces comprising one or more signal paths operable for communication with one or more memory systems;
• and
• processing circuitry coupled with the one or more interfaces and configured to cause the host system to:
• receive one or more public keys associated with a memory system of the one or more memory systems, each public key of the one or more public keys associated with the memory system corresponding to a respective private key associated with the memory system;
• generate a symmetric key in accordance with a private key associated with the host system and a first public key of the one or more public keys associated with the memory system;
• and
• transmit a command to program data to a first set of memory cells within a first protection region of one or more protection regions of the memory system, the command comprising a signature for protection of the first protection region in accordance with the symmetric key and the respective private key associated with the memory system.

A memory system, comprising:

• one or more memory devices;
• and
• processing circuitry coupled with the one or more memory devices and configured to cause the memory system to:
• receive, from a host system, one or more public keys associated with the host system, each public key of the one or more public keys associated with the host system corresponding to a respective private key associated with the host system;
• generate a symmetric key in accordance with a private key associated with the memory system and a first public key of the one or more public keys associated with the host system;
• receive a command to program data to a first set of memory cells within a first protection region of one or more protection regions of the memory system, the command comprising a signature for protection of the first protection region in accordance with the symmetric key and the respective private key associated with the host system;
• and
• determine whether to program the data to the first set of memory cells with the first protection region in accordance with attempting to decrypt the signature of the command using the generated symmetric key.

A non-transitory computer-readable medium storing code comprising instructions which, when executed by processing circuitry of an electronic device, cause the electronic device to:

• receive, at a host system, one or more public keys associated with a memory system, wherein each public key of the one or more public keys associated with the memory system corresponds to a respective private key associated with the memory system;
• generate a symmetric key in accordance with a private key associated with the host system and a first public key of the one or more public keys associated with the memory system;
• and
• transmit a command to program data to a first set of memory cells within a first protection region of one or more protection regions of the memory system, the command comprising a signature for protection of the first protection region in accordance with the symmetric key and the respective private key associated with the memory system.