Even if some people may have stolen your smartphone, if they do not know that your PIN may not be too good for them. Now researchers from Nanyang Technological University in Singapore have created a system that can correctly guess the phone's PIN based on the information provided by the sensor.
Under Dr. Shivam Bhasin's leadership, the research team "trained" the system by letting three people randomly enter 70 four-digit PINs on an Android smartphone. A special application is installed on each cell phone to collect data from accelerometers, gyroscopes, magnetometers, proximity sensors, barometers, and ambient light sensors.
The researchers then used deep learning algorithms to analyze the data and match specific sensor readings with specific numbers on the on-screen keyboard. Bhasin explained: “When you hold your phone and enter your PIN, the way the phone moves is very different when you press 1, 5 or 9. Similarly, pressing 1 with your right thumb will be more than pressing 9 Block more light."
When the system guesses a four-digit PIN based on the sensor's response, when unlocking a phone using one of the 50 most used PINs, the accuracy rate is 99.5% (no more than three attempts).
According to Bhasin, it is conceivable that people may unknowingly use technology to download malware onto mobile phones. After accessing the phone's sensor and obtaining the user's PIN, the program transmits the information to the person who can unlock the phone.
To prevent this from happening, he suggested that the mobile operating system restrict access to the mobile sensor so that users can only grant permissions to trusted applications.
A paper on this research was recently published in the journal "CryptologyePrintArchive".
Outdoor Waterproof Wire Harness
Outdoor waterproof Wire Harness is mainly used in some outdoor equipment and underwater equipment, and have high requirements on the waterproofness of the wiring harness. Wire harness waterproofing is a necessary part of wire harness work. Once the waterproof wire harness fails, it is easy to cause abnormal operation of various electrical systems, affecting the comfort of the whole vehicle, and even causing great safety risks. After the design is completed, waterproof experiments should be carried out in order to check the reliability of the waterproof design.
IP waterproof rating range
The waterproof test includes the second characteristic number from 1 to 8, that is, the protection class code is IPX1 to IPX8.
No protection No special protection
1 Prevent dripping water from invading Prevent vertical dripping water droplets
2 Water dripping is still prevented when tilted 15 degrees Water dripping is still prevented when electrical equipment is tilted 15 degrees
3 Prevent the intrusion of water jets Prevent rainwater, or water jetted from the vertical angle of less than 50 degrees
4 Prevent the intrusion of splashing water Prevent the intrusion of splashing water from all directions
5 Prevent the intrusion of water from large waves
6 Prevent the water intrusion of large waves Electrical equipment intrusion into the water can still ensure the normal operation of the equipment under certain conditions of time or water pressure
7 Prevent the intrusion of water intrusion Electrical equipment can still ensure the normal operation of the equipment under the condition of certain water pressure under the condition of submerged water indefinitely
8 Prevent the effects of sinking
In order to ensure the waterproof performance of the wiring harness, the Connector must provide a safe and reliable connection. Choose advanced waterproof structure design connector, the waterproof level is greater than or equal to IPX7 protection level. Choose connectors produced by regular manufacturers to ensure strict quality control system, excellent processing and assembly accuracy, and multiple performance testing. In order to ensure the waterproof performance of the connector.
Only through strict waterproof wiring harness design, purchase of Outdoor Waterproof Wire Harness produced by regular manufacturers, production in strict accordance with waterproof wiring harness technology, and rigorous and thorough quality inspections, can we produce qualified defensive wiring harnesses.
We can not only provide you with Outdoor Waterproof Wire Harness, but also other Industrial Cable Assembly, including Laser Welding Equipment Wiring Harness and Automatic Traffic Door Wiring Harness.
Outdoor Waterproof Wire Harness,Outdoor Waterproof Cable,Waterproof Harness,Exterior Grade Ethernet Cable
Kable-X Technology (Suzhou) Co., Ltd , https://www.kable-x-tech.com