Patent attributes
The present invention discloses an authentication method using a cellular phone in internet. According to the present invention, when connecting to internet or performing electronic commerce, the authentication is performed through the cellular phone in parallel with a personal information stored when user's joining the cellular phone service, a number particular to the cellular phone, a secret number in an authentication required for the connection or the settlement of accounts. Specifically, in authentication process for making up accounts, besides the line connected to internet, a separate cellular phone line is used and if the authentication data of the internet site server is identical to that of the cellular phone service company, the authentication process is completed, thereby eliminating the danger of hacking basically.