{"id":2138,"date":"2019-11-01T00:00:00","date_gmt":"2019-11-01T00:00:00","guid":{"rendered":"http:\/\/192.168.2.19:8666\/?p=1"},"modified":"2023-11-20T18:35:16","modified_gmt":"2023-11-20T10:35:16","slug":"samsung-intelligent-fingerprint-scan-fool","status":"publish","type":"post","link":"https:\/\/rewa.tech\/es\/samsung-intelligent-fingerprint-scan-fool\/","title":{"rendered":"El esc\u00e1ner inteligente de huellas dactilares de Samsung vuelve a ser una tonter\u00eda"},"content":{"rendered":"

Earlier this month, according to The Sun reported that\u00a0the Samsung Galaxy S10’s\u00a0in-display fingerprint sensor has a security flaw. Some silicone screen protectors<\/a> may confuse the\u00a0ultrasonic fingerprint sensor. If you currently use this kind of covers,\u00a0please refrain from using it\u00a0until your device has been updated with a new software patch, according to Samsung’s\u00a0official statement.<\/p>\n

\"Earlier<\/p>\n

Statement from Samsung<\/p>\n

What happened\uff1f<\/strong><\/h2>\n

\"El<\/p>\n

Photo by The Sun<\/p>\n

\"El<\/p>\n

Screenshot from twitter<\/p>\n

A British user\u00a0complained that her Galaxy S10’s fingerprint recognition system got confused\u00a0after a silicone screen protector was applied. Those\u00a0fingerprints that\u00a0have not\u00a0been\u00a0recorded can also unlock\u00a0the phone. What’s\u00a0worse, they could also\u00a0log into\u00a0some private\u00a0Bank APPs\u00a0and perform\u00a0operations.\u00a0At least three banks operating in the UK have decided to temporarily suspend their mobile banking services for Samsung Galaxy S10<\/a> users.\u00a0These are not the only financial institutions that took steps to protect their customers.<\/p>\n

\"<\/p>\n

Photo by darkshark<\/p>\n

However, this is not the first time that the S10 has had problems with fingerprints. Earlier this year, The Imgur blogger darkshark had successfully fooled the ultrasonic fingerprint sensor\u00a0with the 3D print of his finger. He took photos of his fingerprints left on the surface of a wine glass and then used Photoshop to clean it up. He finally created a 3D model of his fingerprint patterns using 3DS Max.<\/p>\n

The Fingerprint Recognition System Of Samsung<\/strong><\/h2>\n

Now, let\u2019s look inside the fingerprint recognition system of Samsung and find out the possible cause of the fingerprint issue mentioned above.
\n\"The<\/p>\n

Basic logic of fingerprint sensor<\/p>\n

Software protection: feature point extraction algorithm <\/strong><\/h2>\n

Currently, most fingerprint identification algorithm is realized by extracting and comparing key feature points, such as the overall structure of fingerprint, local bifurcation points, endpoints, breakpoints and so on. In this case, the\u00a0ultrasonic fingerprint sensor\u00a0of Samsung Galaxy S10 may come with a detection bug.<\/p>\n

\"Software<\/p>\n

Detection\u00a0method of biometric authentication<\/p>\n

We\u00a0suspect\u00a0that\u00a0the problem is probably related to the \u201cthreshold and learning mode setting\u201d of the fingerprint learning algorithm. For the first case mentioned above, the system recorded the texture of silicone screen protector and the textured surface fooled the phone’s\u00a0biometric authentication system.\u00a0Nowadays, the fingerprint identification module needs to satisfy more users and it is hard for module to balance the recognition rate and the pass rate. Samsung should make their best effort to strengthen security through continuous improvement and updates to enhance biometric authentication functions.<\/p>\n

Hardware protection: trusted computing environment and resource isolation<\/strong><\/h2>\n

\"Hardware<\/p>\n

The best way to protect your private information on your phone is to build a trusted computing environment inside it. Each manufacturer has a different strategy for TEE isolation.<\/p>\n


\n\"The<\/a><\/p>\n

iPhone 8\/8 Plus Fingerprint Boost IC Replacement<\/p>\n

Since Apple\u00a0A7, Apple has adopted a self-developed isolation\u00a0system called Security Enclave. As a separate processor handling\u00a0biometric information, the Enclave stores encryption keys used to lock down the\u00a0biometric data.\u00a0Thus makes it difficult for hackers to decrypt sensitive information without physical access to the device. Compared to Apple, Samsung adopted a completely different\u00a0design\u00a0in TEE isolation. The built-in mobile security platform\u00a0Knox is applied to isolate sensitive data.\u00a0Between the sensitive data storage and the main system, Samsung designed a fuse. The E-fuse will be set if the phone is booted or a swipe is detected. As thus, Samsung created a trusted computing environment physically.<\/p>\n

What about other cell\u00a0phone\u00a0manufacturers?<\/strong><\/h2>\n

\"El<\/p>\n

Photo by the INQUIRER<\/p>\n

Also in October Google\u00a0came under fire for its Pixel 4\u00a0facial recognition unlock feature, which\u00a0would unlock your phone, even if your eyes were closed.\u00a0Google issued a media statement quickly that the glitch will be fixed in a software update that will be delivered in the \u201ccoming months.\u201d<\/p>","protected":false},"excerpt":{"rendered":"

Earlier this month, according to The Sun reported that\u00a0the Samsung Galaxy S10’s\u00a0in-display fingerprint sensor has a security flaw. Some silicone screen protectors may confuse the\u00a0ultrasonic fingerprint sensor. If you currently use this kind of covers,\u00a0please refrain from using it\u00a0until your device has been updated with a new software patch, according to Samsung’s\u00a0official statement. Statement from […]<\/p>\n","protected":false},"author":1,"featured_media":2686,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/s.rewa.tech\/image\/f44d1c2c-6e1a-4f6c-afad-6bc0391e7e96-Samsung-Intelligent-Fingerprint-Scan-Being-Fool-Again.jpg","fifu_image_alt":"","footnotes":""},"categories":[16,228],"tags":[66,522],"class_list":["post-2138","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-samsung","tag-samsung","tag-samsung-fingerprint"],"_links":{"self":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/2138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/comments?post=2138"}],"version-history":[{"count":0,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/posts\/2138\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media\/2686"}],"wp:attachment":[{"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/media?parent=2138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/categories?post=2138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rewa.tech\/es\/wp-json\/wp\/v2\/tags?post=2138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}