با سلام خدمت کاربران در صورتی که با خطای سیستم پرداخت بانکی مواجه شدید از طریق کارت به کارت (6037997535328901 بانک ملی ناصر خنجری ) مقاله خود را دریافت کنید (تا مشکل رفع گردد).
ردیف | عنوان | نوع |
---|---|---|
1 |
PNU spoofing: a menace for biometrics authentication systems?
جعل PNU: تهدیدی برای سیستم های احراز هویت بیومتریک؟-2021 The Pixel Non-Uniformity noise (PNU noise, for short) is a characteristic noise of digital camera sensors that has been originally used a mean to perform Source Camera Identification (SCI), that is, to
identify the digital camera that has been used to take an image under scrutiny. Actually, its usage
has been extended to other relevant application domains, such as carrying out sensor identification
in iris biometrics, to resolve the integrity of a biometric authentication system, in health monitoring
systems based on bio-signal processing, and to prevent health fraud scams. As a consequence of this
popularity, several counter-forensics techniques have been proposed in the scientific literature to deceive this identification approach and, thus, putting at risk its effectiveness. The goal of this paper
is to experiment with some of these counter-forensics techniques and to assess whether they are able
or not to deceive the PNU-based identification process. We focus our attention on the particular case
where a target image is modified so as to appear as been taken by a different device than the original
one (i.e., spoofing). The results of our experiments show that this kind of spoofing is apparently successful in deceiving the PNU-based identification process. However, we also show that the spoofed
images retain traces of their originating camera. By leveraging on this information, it is still possible
to trace back the device used to take that image. This finding may have a deep impact on the usage of
Pixel Non Uniformity (PNU) noise for identification tasks, such as the ones carried out by biometric
recognition and monitoring systems, and on the possibility to really cheat them by means of counter–
forensics techniques.
Keywords: Pixel Non Uniformity | Source Camera Identification | Authentication Systems Biometrics |
مقاله انگلیسی |