FIELD: information security.
SUBSTANCE: invention relates to network security. Method of tying key token to account comprises steps of: sending a connection request message carrying account, server, so that server generates a link to certificate and first key token corresponding account; obtaining a link to certificate and first key token, and a displayed information according to link on certificate and first key token so that mobile terminal receives encrypted data according to first key token and sends access request message carrying a link to certificate and encrypted data, and additionally so that server receives an access request message and sends encrypted data; receive encrypted data and second key token according to encrypted information and sending a message on successful binding server after determining that second key token is matched to first key token, so that server associates first key token to account.
EFFECT: technical result is providing efficient safety of user account.
17 cl, 10 dwg
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