Method and device for identity verification

• US 10,643,054 B2
• Filed: 08/01/2017
• Issued: 05/05/2020
• Est. Priority Date: 08/02/2016
• Status: Active Grant

• Current Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Original Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Inventors: Jiang, Zhongsheng, Li, Guosheng, Ji, Chuanshun
• Primary Examiner(s): Akhavannik, Hadi
• Application Number:
  US15/666,271
• Publication Number:
  US 20180039819A1
• Time in Patent Office: 1,008 Days
• Field of Search: None
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 2221/2113 Multi-level security, e.g. mandatory access control
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/1365 Matching; Classification
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231
• CPC Class Codes: H04L 63/105 Multiple levels of security

Abstract

A method for identity verification is provided. The method includes: collecting a target fingerprint for the identity verification; acquiring a fingerprint verification rule corresponding to a security level of the identity verification; performing a verification of the target fingerprint based on the fingerprint verification rule; and confirming that the identity verification is successful when the target fingerprint is verified.

Claims

1. A method for identity verification, comprising:

collecting a target fingerprint of a user for the identity verification;

acquiring a fingerprint verification rule corresponding to a security level of the identity verification;

performing a verification of the target fingerprint based on the fingerprint verification rule, by comparing the target fingerprint with a corresponding legal fingerprint among a plurality of different legal fingerprints of the user, wherein each of the plurality of different legal fingerprints corresponds to a respective security level of the identity verification; and

confirming that the identity verification is successful when the target fingerprint is verified,

wherein collecting the target fingerprint comprises;

triggering a fingerprint recognition sensor when an identity verification instruction sent by an upper-level application is received; and

collecting the target fingerprint by the fingerprint recognition sensor,

wherein the identity verification instruction carries the security level of the identity verification, and different security levels for different identify verifications in different application scenes exist for the same upper-level application within an operating system.

2. The method according to claim 1, wherein collecting the target fingerprint comprises:

triggering a fingerprint recognition sensor when a preset system event is detected; and

collecting the target fingerprint by the fingerprint recognition sensor, the target fingerprint being used for the identity verification triggered by the detected system event.

3. The method according to claim 2, further comprising:

receiving security levels for identity verifications triggered by respective system events;

storing a relationship between the system events and the security levels,

wherein acquiring the fingerprint verification rule comprises;

determining the security level corresponding to the detected system event according to the relationship; and

acquiring the fingerprint verification rule corresponding to the security level.

4. The method according to claim 1, wherein performing the verification of the target fingerprint comprises:

calculating a score value of feature comparison between the target fingerprint and the corresponding legal fingerprint;

judging whether the score value is greater than a verifying threshold corresponding to the fingerprint verification rule; and

determining that the target fingerprint is verified if the score value is greater than the verifying threshold value.

5. The method according to claim 4, wherein performing the verification of the target fingerprint further comprises:

judging whether the score value is equal to the verifying threshold; and

determining that the target fingerprint is verified, if the score value is equal to the verifying threshold value.

6. The method according to claim 4, wherein calculating the score value of feature comparison comprises:

judging whether the fingerprint verification rule includes a fingerprint identification; and

calculating the score value between the target fingerprint and the legal fingerprint corresponding to the fingerprint identification, if the fingerprint verification rule includes the fingerprint identification.

7. A device for identity verification, comprising:

a processor; and

a memory storing instructions executable by the processor;

wherein the processor is configured to;

collect a target fingerprint of a user for the identity verification;

acquire a fingerprint verification rule corresponding to a security level of the identity verification;

perform a verification of the target fingerprint based on the fingerprint verification rule, by comparing the target fingerprint with a corresponding legal fingerprint among a plurality of different legal fingerprints of the user, wherein each of the plurality of different legal fingerprints corresponds to a respective security level of the identity verification; and

confirm that the identity verification is successful when the target fingerprint is verified,

wherein the processor is further configured to;

trigger a fingerprint recognition sensor when an identity verification instruction sent by an upper-level application is received; and

collect the target fingerprint by the fingerprint recognition sensor,

wherein the identity verification instruction carries the security level of the identity verification, and different security levels for different identify verifications in different application scenes exist for the same upper-level application within an operating system.

8. The device according to claim 7, wherein the processor is further configured to:

trigger a fingerprint recognition sensor when a preset system event is detected; and

collect the target fingerprint by the fingerprint recognition sensor, the target fingerprint being used for the identity verification triggered by the detected system event.

9. The device according to claim 8, wherein the processor is further configured to:

receive security levels for identity verifications triggered by respective system events;

store a relationship between the system events and the security levels,

wherein, the processor is further configured to;

determine the security level corresponding to the detected system event according to the relationship; and

acquire the fingerprint verification rule corresponding to the security level.

10. The device according to claim 7, wherein the processor is further configured to:

calculate a score value of feature comparison between the target fingerprint and the corresponding legal fingerprint;

judge whether the score value is greater than a verifying threshold corresponding to the fingerprint verification rule; and

determine that the target fingerprint is verified if the score value is greater than the verifying threshold value.

11. The device according to claim 10, wherein the processor is further configured to:

judge whether the score value is equal to the verifying threshold; and

determine that the target fingerprint is verified, if the score value is equal to the verifying threshold value.

12. The device according to claim 10, wherein the processor is further configured to:

judge whether the fingerprint verification rule includes a fingerprint identification; and

calculate the score value between the target fingerprint and the legal fingerprint corresponding to the fingerprint identification, if the fingerprint verification rule includes the fingerprint identification.

13. A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a terminal, cause the terminal to perform a method for identity verification, the method comprising:

collecting a target fingerprint of a user for the identity verification;

acquiring a fingerprint verification rule corresponding to a security level of the identity verification;

performing a verification of the target fingerprint based on the fingerprint verification rule, by comparing the target fingerprint with a corresponding legal fingerprint among a plurality of different legal fingerprints of the user, wherein each of the plurality of different legal fingerprints corresponds to a respective security level of the identity verification; and

confirming that the identity verification is successful when the target fingerprint is verified,

wherein collecting the target fingerprint comprises;

triggering a fingerprint recognition sensor when an identity verification instruction sent by an upper-level application is received; and

collecting the target fingerprint by the fingerprint recognition sensor,

wherein the identity verification instruction carries the security level of the identity verification, and different security levels for different identify verifications in different application scenes exist for the same upper-level application within an operating system.