Authentication method for accessing network, authentication device, and user device

An authentication method for accessing a network, applied to a user device, wherein the method comprises:

• obtaining first data based on biometric feature data of a target user, wherein the first data is data obtained by the user device based on the data obtained by preprocessing a biometric feature of the target user;
• sending an authentication response message to an authentication device, wherein the authentication response message comprises the first data;
• and
• receiving indication information sent by the authentication device, wherein the indication information is used to indicate that the user device is authenticated,
• wherein the authentication response message further comprises index information, the index information being configured to identify the user device or the target user,
• wherein the obtaining the first data based on the biometric feature data of the target user comprises:
• collecting the biometric feature data of the target user;
• obtaining target data based on the biometric feature data of the target user, wherein the target data is the data obtained by preprocessing the biometric feature of the target user;
• and
• converting the target data into the first data, and
• wherein before the converting the target data into the first data, the method further comprises:
• sending an authentication request message to the authentication device, wherein the authentication request message is used to request the authentication device to send a random data;
• and
• receiving the random data sent by the authentication device;
• and
• the converting the target data into the first data comprises:
• calculating the target data and the random data by using a hash function, to obtain the first data.

An authentication device, wherein the authentication device comprises:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions instruct the processor to:
• receive an authentication response message sent by a user device, wherein the authentication response message comprises first data, and the first data is data obtained by the user device based on biometric feature data of a target user;
• obtain second data from a server, wherein the second data is data obtained by the server based on biometric feature data of a user;
• generate indication information when the first data is the same as the second data, wherein the indication information is used to indicate that the user device is authenticated;
• and
• send the indication information to the user device,
• wherein the authentication response message further comprises index information, the index information being configured to identify the user device or the target user,
• wherein the programming instructions instruct the processor to:
• send a retrieval request message to the server, wherein the retrieval request message comprises the index information;
• receive third data sent by the server, wherein the third data is stored biometric feature data of the user that is obtained by the server based on the index information;
• and
• convert the third data into the second data, and
• wherein the programming instructions further instruct the processor to:
• receive an authentication request message sent by the user device, wherein the authentication request message is used to request the authentication device to send a random data;
• obtain the random data;
• and
• send the random data to the user device;
• and
• wherein the programming instructions instruct the processor to:
• calculate the third data and the random data by using a hash function, to obtain the second data.

A user device, wherein the user device comprises:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions instruct the processor to:
• obtain first data based on biometric feature data of a target user, wherein the first data is data obtained by the user device based on the data obtained by preprocessing a biometric feature of the target user;
• send an authentication response message to an authentication device, wherein the authentication response message comprises the first data;
• and
• receive indication information sent by the authentication device, wherein the indication information is used to indicate that the user device is authenticated,
• wherein the authentication response message further comprises index information, the index information being configured to identify the user device or the target user,
• wherein the programming instructions instruct the processor to:
• collect the biometric feature data of the target user;
• obtain target data based on the biometric feature data of the target user, wherein the target data is the data obtained by preprocessing the biometric feature of the target user;
• and
• convert the target data into the first data, and
• wherein the programming instructions further instruct the processor to:
• send an authentication request message to the authentication device, wherein the authentication request message is used to request the authentication device to send a random data;
• and
• receive the random data sent by the authentication device;
• and
• wherein the programming instructions instruct the processor to:
• calculate the target data and the random data by using a hash function, to obtain the first data.