| 摘要 |
PROBLEM TO BE SOLVED: To reduce dependency on communication in relation to single sign-on.SOLUTION: A first information processing device receives a first encryption key at prescribed timing, and if it succeeds in authentication of information sent from a client device, it generates a hush value of prescribed information, encrypts the hush value by means of the first encryption key received last to generate encryption data, and returns the encryption data and the prescribed information to the client device. A second information processing device receives a second encryption key at the prescribed timing, receives a request including the encryption data and the prescribed information transmitted by the client device, decrypts the encryption data by means of the second encryption key received last, generates a hush value of the prescribed information, compares the decrypted result and the hush value, and performs processing corresponding to the request depending on the comparison result. |
