Information storage apparatus, information storage method, and electronic device

An information storage method to be executed in an information storage apparatus comprising a plurality of nonvolatile memories configured to store information, the method comprising:

• storing encryption information in the memories, and reading out the encryption information stored in the memories;
• respectively encrypting information to be stored in the memories, and respectively decrypting the encryption information read out from the memories;
• and
• collectively storing a plurality of key information which are utilized when encrypting the information to be stored in the memories or decrypting the encryption information read out therefrom.

An electronic device, comprising:

• a host apparatus configured to transmit information;
• a plurality of nonvolatile memories configured to store encryption information obtained by encrypting the information transmitted from the host apparatus so that the stored encryption information are read out therefrom;
• a plurality of encryption processing modules provided correspondingly with the respective memories, and configured to encrypt the information to be stored in the memories and to decrypt the encryption information read out from the memories;
• and
• a storage processing module configured to collectively store a plurality of key information which are utilized when the encryption processing modules encrypt the information to be stored or decrypt the encryption information read out.