Storage class memory with in-memory one-time pad security

A non-transitory computer-readable media having computer-readable instructions stored thereon that when executed by a processor associated with a memory module cause the processor to:

• receive a request to store data in the memory module;
• generate a true random number by applying an optimal write pulse to a first plurality of memory cells of the memory module;
• generate a pseudo random number key from the true random number;
• perform a first modified XOR operation between the data and the pseudo random number key to obtain a ciphertext,
• wherein in the first modified XOR operation, a bit of the ciphertext has a same logical value as a corresponding bit of the pseudo random number key when a corresponding bit of the data is at a low logical value;
• and
• wherein in the first modified XOR operation, the bit of the ciphertext is inverse of the logical value of the corresponding bit of the pseudo random number key when the corresponding bit of the data is at a high logical value.

A memory device comprising:

• a memory controller;
• and
• a memory module comprising a key space and a ciphertext space,
• wherein the memory module encrypts a data with a key that is stored in the key space to obtain a ciphertext that is stored in the ciphertext space;
• wherein the memory module decrypts the ciphertext with the key to obtain the data;
• wherein the memory module performs a first modified XOR operation to encrypt the data and a second modified XOR operation to decrypt the ciphertext;
• wherein in the first modified XOR operation, a bit of the ciphertext has a same logical value as a corresponding bit of the key when a corresponding bit of the data is at a low logical value and the bit of the ciphertext is inverse of the logical value of the corresponding bit of the key when the corresponding bit of the data is at a high logical value;
• and
• wherein in the second modified XOR operation, the logical value of the bit of the ciphertext forms the logical value of the corresponding bit of the data when the corresponding bit of the key is at the low logical value and the inverse of the logical value of the bit of the ciphertext forms the logical value of the corresponding bit of the data when the corresponding bit of the key is at the high logical value.