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Can Android VoIP voice conversations be decoded? I can eavesdrop on your Android VoIP communication
Author(s) -
Pokharel Shasi,
Choo KimKwang Raymond,
Liu Jixue
Publication year - 2016
Publication title -
concurrency and computation: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 67
eISSN - 1532-0634
pISSN - 1532-0626
DOI - 10.1002/cpe.3845
Subject(s) - voice over ip , android (operating system) , computer science , phone , mobile communications over ip , codec , encryption , voice communication , the internet , internet privacy , computer network , telecommunications , world wide web , mobile telephony , operating system , mobile radio , linguistics , philosophy , public land mobile network
Summary Voice over Internet Protocol (VoIP) is increasingly used by both individuals and corporate users. Recent studies had suggested that communications using VoIP apps may not be encrypted, although it has not been demonstrated that original conversations could be recovered from unencrypted communications that were subsequently intercepted. In this research, we propose a process for codec identification and decoding of captured communications from 15 popular Android VoIP apps. We are able to recover the original voice conversations from intercepted app‐to‐app voice calls of nine apps and app‐to‐phone calls from 10 apps. Copyright © 2016 John Wiley & Sons, Ltd.