Patent ID: 11924337
Assignee: SOLITON SYSTEMS K.K.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. The sensitive data management apparatus according to claim 12, further configured to:
determine success or failure of decryption of the encrypted sensitive data,
wherein, in a case where a determination is success, the sensitive data management apparatus is further configured to:
generate a new sensitive data protection code after a user accesses decrypted sensitive data;
encrypt the decrypted sensitive data using the new sensitive data protection code as a sixth symmetric encryption key;
encrypt the new sensitive data protection code using the second symmetric encryption key;
delete the sixth symmetric encryption key and the sensitive data after the encryption of the decrypted sensitive data; and
delete the new sensitive data protection code after the encryption of the new sensitive data protection code.