TY - GEN
T1 - An RTP extension for reliable user-data transmission over VoIP Traffic
AU - Gao, Jinbao
AU - Li, Yuanzhang
AU - Jiang, Hongwei
AU - Liu, Lu
AU - Zhang, Xiaosong
N1 - Publisher Copyright:
© Springer Nature Singapore Pte Ltd. 2019.
PY - 2019
Y1 - 2019
N2 - Covert channels are those breaking the restrictions of the legitimate channel and transmitting covert messages secretly. According to the modulation methods, the covert channels are separated into two types, which are the covert storage channel and the covert timing channel. Since the covert storage channel modulates a covert message into the shared storage space, both capacity and throughput exceed the covert timing channel, which guarantees the effectiveness of covert communication. In this paper, a covert storage channel over RTP is proposed and evaluated. Since mobile multimedia communication requires low transmission latency, the RTP based on UDP is widely utilized by VoIP applications. Through modifying the packet layout of RTP packets and embedding secret message sections into the target position, the covert message could be delivered to the receiver. However, since the RTP is not a reliable protocol, the transmission procedure could be infected by the network noise. To solve this, a transmission control mechanism with retransmission is designed for the scheme. Besides, the secret message is also encrypted with a secure encryption algorithm, which prevents message leakage. To evaluate the scheme, several experiments are deployed, and the scheme is proved to be reliable and secure.
AB - Covert channels are those breaking the restrictions of the legitimate channel and transmitting covert messages secretly. According to the modulation methods, the covert channels are separated into two types, which are the covert storage channel and the covert timing channel. Since the covert storage channel modulates a covert message into the shared storage space, both capacity and throughput exceed the covert timing channel, which guarantees the effectiveness of covert communication. In this paper, a covert storage channel over RTP is proposed and evaluated. Since mobile multimedia communication requires low transmission latency, the RTP based on UDP is widely utilized by VoIP applications. Through modifying the packet layout of RTP packets and embedding secret message sections into the target position, the covert message could be delivered to the receiver. However, since the RTP is not a reliable protocol, the transmission procedure could be infected by the network noise. To solve this, a transmission control mechanism with retransmission is designed for the scheme. Besides, the secret message is also encrypted with a secure encryption algorithm, which prevents message leakage. To evaluate the scheme, several experiments are deployed, and the scheme is proved to be reliable and secure.
KW - Covert storage channel
KW - RTP
KW - Reliable protocol
KW - VoIP
UR - http://www.scopus.com/inward/record.url?scp=85076203860&partnerID=8YFLogxK
U2 - 10.1007/978-981-15-0758-8_6
DO - 10.1007/978-981-15-0758-8_6
M3 - Conference contribution
AN - SCOPUS:85076203860
SN - 9789811507571
T3 - Communications in Computer and Information Science
SP - 74
EP - 86
BT - Security and Privacy in Social Networks and Big Data - 5th International Symposium, SocialSec 2019, Revised Selected Papers
A2 - Meng, Weizhi
A2 - Furnell, Steven
PB - Springer
T2 - 5th International Symposium on Security and Privacy in Social Networks and Big Data, SocialSec 2019
Y2 - 14 July 2019 through 17 July 2019
ER -