Method and device for authenticating personal network entity

A method of authenticating a Personal Network Entity (PNE), comprising:

• storing, by a Personal Network GateWay (PN GW), when a PNE requests an authentication, a physical Media Access Control address of the PNE (MACPNE) and transferring the MACPNE together with the authentication request to a Converged Personal Network Service CPNS server;
• identifying, by the CPNS server, the MACPNE, generating a random number R to be used in an authentication session, and transmitting the R together with an authentication response;
• storing, by the PN GW, the R transmitted from the CPNS server, generating a NONCE to be used for a Personal Identification Number (PIN) generation, and transmitting the R and the nonce together with the authentication response to the PNE;
• generating, by the PNE, a PIN through a preset PIN generation function, generating a Random Pin (RP), and displaying information on the generated PIN and RP;
• performing, by the PN GW upon receiving inputs regarding the PIN and the RP from a user, a verification of the PIN input through the PIN generation function;
• receiving, by the PN GW, when the verification of the PIN is completed, inputs of a user IDentification (IDUSER) and a user password (PWUSER) from the user, applying the user IDUSER and the user password PWUSER to a hash function H( ) to generate a value W required when the PNE requests an authentication from the CPNS server, transmitting the IDUSER, the W, the NONCE, and the RP to the CPNS server, and making an identification request;
• identifying, by the CPNS server, information for the identification request transmitted from the PN GW, identifying an effectiveness of the user and the PNE, and transmitting an authentication confirmation message to the PN GW;
• and
• transferring, by the PN GW, the authentication confirmation message to the PNE, and completing an authentication procedure.

A Personal Network GateWay (PN GW) device for authenticating a Personal Network Entity (PNE), comprising:

• a communication unit configured to transmit a PNE serial number (SNPNE) to a Converged Personal Network Service (CPNS) server;
• a memory configured to store an authentication value chain of a PNE received from the CPNS server and an inherent assignment key (TKPNE) that is secret information of a corresponding PNE;
• a PN manager configured to encrypt a selected authentication value from among the authentication value chain by using the TKPNE;
• and
• a short distance communication module configured to transmit the encrypted authentication value to the corresponding PNE so that the encrypted authentication value is stored in the corresponding PNE,
• wherein the PN manager performs an authentication procedure between the corresponding PNE and the CPNS server by using the encrypted authentication value stored in the corresponding PNE.

A method of authenticating a Personal Network Entity (PNE) in a Personal Network GateWay (PN GW), comprising:

• receiving an authentication response together with a random number R to be used in an authentication session for the PNE from the CPNS server;
• storing the R transmitted from the CPNS server;
• generating information to be used for a Personal Identification Number (PIN) generation;
• transmitting the R and the information together with the authentication response to the PNE;
• receiving a PIN and a Random PIN (RP) from a user;
• performing a verification of the PIN using the R, the information, and a physical Media Access Control address of the PNE (MACPNE);
• receiving, when the verification of the PIN is completed, inputs of a user IDentification (IDUSER) and a user password (PWUSER) from the user;
• applying the user IDUSER and the PWUSER to a hash function H( ) to generate a value W for the CPNS server authentication of the PNE;
• transmitting an identification request including the IDUSER, the W, the information, and the RP to the CPNS server;
• receiving an authentication confirmation message from the CPNS server;
• and
• transferring the authentication confirmation message to the PNE.

A method of authenticating a Personal Network Entity (PNE) in the PNE, comprising:

• transmitting an authentication request of the PNE to a Personal Network GateWay (PN GW);
• receiving an authentication response together with a random number R to be used in an authentication session and information to be used for a Personal Identification Number (PIN) generation from the PN GW;
• wherein the R is generated by a Converged Personal Network Service (CPNS) server, when a physical Media Access Control address of a PNE (MACPNE) is transferred from the PN GW to the CPNS server and a MACPNE corresponding to the transferred MACPNE is searched from user database of the CPNS server and wherein the NONCE is generated by the PN GW;
• generating a PIN using the R, the information, the MACPNE and a PIN generation function and a Random PIN (RP);
• displaying data on the PIN and the RP;
• and
• receiving an authentication confirmation message from the PN GW;
• wherein the authentication confirmation message is transmitted from the CPNS server to the PN GW, when an authentication of the PNE by the PN GW succeeds and the CPNS server uses the R, the information, the MACPNE, the PIN, the RP, and the PIN generation function.