Processor, memory device, computer system, and method for transferring data

A processor connected to a memory device comprising:

• a random number generator that generates random numbers identical to random numbers generated in the memory device;
• an XOR logic unit that performs an XOR operation of the random numbers and an address in the memory device to be accessed;
• an after-operation-address sending unit that sends an after-operation-address indicating a result of the XOR operation;
• and
• an encryption unit that encrypts data sent by the processor by using the address in the memory device for the data or a portion as a key to obtain the encrypted data;
• and
• an encrypted data sending unit that sends the encrypted data.

A memory device for storing data utilized by a processor, comprising:

• an after-operation-address obtaining unit that obtains, from the processor, an after-operation-address indicating a result of an XOR operation of an address in the memory device to be accessed by the processor and random numbers generated by the processor;
• a random number generator that generates random numbers identical to random numbers generated by the processor;
• an XOR logic unit that determines the address of the data by performing the XOR operation of the after-operation-address and the random numbers generated by the random number generator;
• a control unit that allows an access to a specified address;
• and
• an encrypted data obtaining unit that, from the processor, obtains the encrypted data encrypted by using the address of the data or a portion as a key,
• wherein the control unit stores the encrypted data in the address.