# US 11,443,070 B2 · Biometric feature attack objects and biometric feature attack test systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,443,070 B2 - Document ID: US11443070B2 - Status: Granted - Kind: B2 - Application number: 17/362,578 - Filed: 2021-06-29 - Published: 2022-01-13 - Granted: 2022-09-13 - Earliest claimed: 2020-07-13 - Assignees: Alipay (Hangzhou) Information Technology Co., Ltd. - Applicants: Alipay (Hangzhou) Information Technology Co., Ltd. - Inventors: Jianxu Zheng - Web page: https://patentgrep.com/patent/US11443070B2 ## CPC - G06F 21/71: to assure secure computing or processing of information - G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints - G06V 20/41: {Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items (segmenting video sequences G06V20/49)} - G06V 40/1306: {non-optical, e.g. ultrasonic or capacitive sensing} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract Methods, systems, and apparatus for operations for performing biometric feature attack tests. An example system includes a biometric feature attack object, comprising a substrate, a biometric feature attachment part, and a conductive part, wherein: the substrate comprises a biometric feature carrying area and a pressing area, and the biometric feature carrying area and the pressing area are respectively disposed on two opposite sides of the substrate; the biometric feature attachment part is disposed in the biometric feature carrying area; and the conductive part is disposed in the pressing area or the biometric feature carrying area. ## Claims ### Claim 1 A system for performing biometric feature attack tests, wherein the system comprises: a biometric feature attack object, comprising a substrate, a biometric feature attachment part, and a conductive part, wherein: the substrate comprises a biometric feature carrying area and a pressing area, and the biometric feature carrying area and the pressing area are respectively disposed on two opposite sides of the substrate; the biometric feature attachment part is disposed in the biometric feature carrying area, wherein the biometric feature attack object further comprises an identity identifier, wherein the identity identifier is located on a side of the substrate on which the pressing area is located and in an area different from the pressing area, and wherein the identity identifier and the pressing area are used to define a placement position of the biometric feature attack object; and the conductive part is disposed in the pressing area or the biometric feature carrying area; wherein the pressing area comprises a first central point, the identity identifier comprises a second central point, and the placement position of the biometric feature attack object is defined by pose information of a line connecting the first central point and the second central point. ### Claim 2 (depends on 1) The system according to claim 1, wherein the biometric feature comprises at least a fingerprint or a palmprint. ### Claim 3 (depends on 1) The system according to claim 1, wherein the conductive part is conductive silica gel or a conductive film. ### Claim 4 (depends on 1) The system according to claim 1, wherein the substrate is made of a non-conductive material. ### Claim 5 (depends on 4) The system according to claim 4, wherein the substrate is made of a paper material. ### Claim 6 (depends on 1) The system according to claim 1, wherein the identity identifier is a graphic code. ### Claim 7 (depends on 3) The system according to claim 3, wherein the biometric feature attack object further comprises a bounding frame located on a side of the substrate on which the pressing area is located and used to identify the pressing area. ### Claim 8 (depends on 3) The system according to claim 3, wherein the conductive film is a transparent conductive film disposed in the biometric feature carrying area, and wherein the biometric feature attachment part is disposed in the biometric feature carrying area by using the transparent conductive film. ### Claim 9 (depends on 8) The system according to claim 8, wherein the transparent conductive film comprises a first area and a second area, and the first area and the second area are respectively disposed on two opposite sides of the transparent conductive film; and the biometric feature attachment part is disposed in the first area, and the second area is disposed in the biometric feature carrying area. ### Claim 10 (depends on 8) The system according to claim 8, wherein a color of a side of the substrate on which the biometric feature carrying area is located is determined based on a color of a body part that has the biometric feature. ### Claim 11 (depends on 8) The system according to claim 8, wherein the transparent conductive film is an ITO transparent conductive film. ### Claim 12 (depends on 1) The system according to claim 1, wherein the system further comprises a controller, a mechanical arm, and a camera component, wherein the camera component is configured to: obtain the biometric feature attack object for performing a biometric recognition attack; send information about a current position of the biometric feature attack object to the controller; and detect whether the biometric feature attack object is in a target detection area and, when detecting that the biometric feature attack object is not in the target detection area, send information about a placement position of the biometric feature attack object in the target detection area to the controller. ### Claim 13 (depends on 12) The system according to claim 12, wherein the controller is configured to: control, based on the information about the current position of the biometric feature attack object, the mechanical arm to select the biometric feature attack object, and place the biometric feature attack object in the target detection area; control, based on the information about the placement position, the mechanical arm to adjust the placement position of the biometric feature attack object in the target detection area, so that the biometric feature attack object is placed at a target position for biometric recognition in the target detection area; and control the mechanical arm to perform a pressing operation on a pressing area of the biometric feature attack object by simulating a pressing action of a finger, to perform a biometric recognition attack test. ### Claim 14 (depends on 13) The system according to claim 13, wherein: the camera component is configured to obtain images of the pressing area and the identity identifier, and wherein the controller is configured to determine, based on the images of the pressing area and the identity identifier, whether the biometric feature attack object is in the target detection area. ### Claim 15 (depends on 14) The system according to claim 14, wherein the controller is configured to: determine a tilt angle of the biometric feature attack object in the target detection area based on the pose information of the line connecting the first central point and the second central point; and determine the placement position of the biometric feature attack object in the target detection area based on the tilt angle.