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).
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Authentication and integrity of smartphone videos through multimedia container structure analysis
احراز هویت و یکپارچگی فیلم های تلفن های هوشمند از طریق تجزیه و تحلیل ساختار چند رسانه ای-2020 Nowadays, mobile devices have become the natural substitute for the digital camera, as they capture
everyday situations easily and quickly, encouraging users to express themselves through images and
videos. These videos can be shared across different platforms exposing them to any kind of intentional
manipulation by criminals who are aware of the weaknesses of forensic techniques to accuse an
innocent person or exonerate a guilty person in a judicial process. Commonly, manufacturers do not
comply 100% with the specifications of the standards for the creation of videos. Also, videos shared on
social networks, and instant messaging applications go through filtering and compression processes
to reduce their size, facilitate their transfer, and optimize storage on their platforms. The omission of
specifications and results of transformations carried out by the platforms embed a features pattern in
the multimedia container of the videos. These patterns make it possible to distinguish the brand of
the device that generated the video, social network, and instant messaging application that was used
for the transfer. Research in recent years has focused on the analysis of AVI containers and tiny video
datasets. This work presents a novel technique to detect possible attacks against MP4, MOV, and 3GP
format videos that affect their integrity and authenticity. The method is based on the analysis of the
structure of video containers generated by mobile devices and their behavior when shared through
social networks, instant messaging applications, or manipulated by editing programs. The objectives
of the proposal are to verify the integrity of videos, identify the source of acquisition and distinguish
between original and manipulated videos. Keywords: Forensic analysis | Metadata | Mobile device camera | Multimedia container structure | Social network video analysis | Video analysis | Video authenticity | Video integrity |
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