![]() The content data stored on MEGA, such as files, messages, audio and video, are encrypted on the user’s client. MEGA is a cloud storage service launched by MEGA limited company. Keywords: TLS advanced encryption standard forensics protocol analysis vulnerability On this basis, a method to attack MEGA is proposed, and the secret data stored in the MEGA server can be accessed or downloaded Finally, the efficiency of the attack method is analyzed, and some suggestions to resist this attack method are put forward. By debugging the open-source code of MEGA and analyzing the security white paper published, this paper first clarifies the encryption mechanism of MEGA, including the detailed process of registration, login, and file encryption, studies the encryption mechanism of MEGA from the perspective of protocol analysis, and finds out the vulnerability of MEGA encryption mechanism. This paper presents a method to attack MEGA to provide an effective method for MEGA’s forensics. These characteristics of MEGA have brought great difficulties to its forensics. Moreover, the communication between MEGA client and server is carried out under the protection of Transport Layer Security (TLS) encryption, it is difficult to intercept the key data packets in the process of MEGA registration, login, file data upload, and download. Email: Received: 07 January 2022 Accepted: 23 March 2022Ībstract: MEGA is an end-to-end encrypted cloud storage platform controlled by users. Qingbing Ji 1, 2, *, Zhihong Rao 1, 2, Lvlin Ni 2, Wei Zhao 2 and Jing Fu 3ġSchool of Cybersecurity, Northwestern Polytechnical University, Xi’an, 710072, China 2No.30 Institute of CETC, Chengdu, 610041, China 3Eberly College of Science, Pennsylvania State University-University Park, PA, 16802, USA *Corresponding Author: Qingbing Ji. ![]() ![]() Vulnerability Analysis of MEGA Encryption Mechanism Vulnerability Analysis of MEGA Encryption Mechanism Computers, Materials & Continua DOI:10.32604/cmc.2022.026949 ![]()
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