Abstract: A two-factor authenticated key exchange method. A subscriber station transmits a value generated by using an identifier and an authentication server's public key to the authentication server through an access point. The authentication server uses the value to detect the subscriber's password, a key stored in a token, and the authentication server's secret key, generate a random number. The subscriber station uses the random number, password, and the key to transmit an encrypted value and the subscriber's authenticator to the authentication server. The authentication server establishes a second value generated by using the password, key, and random number to be a decrypted key to decrypt the encrypted value, authenticate the subscriber's authenticator, and transmits the authentication server's authenticator to the subscriber station. The subscriber station authenticates the authentication server's authenticator by using the key and password.

Abstract: A two-factor authenticated key exchange method. A subscriber station transmits a value generated by using an identifier and an authentication server's public key to the authentication server through an access point. The authentication server uses the value to detect the subscriber's password, a key stored in a token, and the authentication server's secret key, generate a random number. The subscriber station uses the random number, password, and the key to transmit an encrypted value and the subscriber's authenticator to the authentication server. The authentication server establishes a second value generated by using the password, key, and random number to be a decrypted key to decrypt the encrypted value, authenticate the subscriber's authenticator, and transmits the authentication server's authenticator to the subscriber station. The subscriber station authenticates the authentication server's authenticator by using the key and password.

Abstract: An absorbent article having a fastening sticker which cannot be drawn out by its wearer, such as an infant wearing it, but is freely attachable to and detachable from the outer surface of the main body of the article, can be used whenever and as often as necessary, and has a very wide range of uses including the tightening of the paper diaper on the body of its wearer, the repair of its side when its side seal is broken, and moreover the intellectual training of the infant, and an absorbent article having a front body side and a back body side formed by folding at the longitudinal middle point of the main body of the article having an absorbent inserted between a liquid-permeable top sheet on the body side and a back sheet on the outside, the absorbent article having a fastening sticker to be used for its disposal, characterized in that the fastening sticker is formed from a disposable sheet attached to the outer surface of the article, such as a sheet-like member capable of being re-stuck to and re-peeled of