The Experts below are selected from a list of 59625 Experts worldwide ranked by ideXlab platform
Hitoshi Kiya - One of the best experts on this subject based on the ideXlab platform.
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encryption then compression systems using grayscale based image encryption for jpeg images
IEEE Transactions on Information Forensics and Security, 2019Co-Authors: Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi KiyaAbstract:A block scrambling-based encryption scheme is presented to Enhance the Security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely transmit the images through an untrusted channel provider, such as social network service providers. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the conventional scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. In an experiment, the Security against jigsaw puzzle solver attacks is evaluated. Encrypted images were uploaded to and then downloaded from Facebook and Twitter, and the results demonstrated that the proposed scheme is effective for EtC systems.
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grayscale based block scrambling image encryption using ycbcr color space for encryption then compression systems
APSIPA Transactions on Signal and Information Processing, 2019Co-Authors: Warit Sirichotedumrong, Hitoshi KiyaAbstract:A novel grayscale-based block scrambling image encryption scheme is presented not only to Enhance Security, but also to improve the compression performance for Encryption-then-Compression (EtC) systems with JPEG compression, which are used to securely transmit images through an untrusted channel provider. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the color-based image encryption scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks, such as jigsaw puzzle solver and brute-force attacks. Moreover, generating the grayscale-based images from a full-color image in YCbCr color space allows the use of color sub-sampling operation, which can provide the higher compression performance than the conventional grayscale-based encryption scheme, although the encrypted images have no color information. In an experiment, encrypted images were uploaded to and then downloaded from Twitter and Facebook, and the results demonstrated that the proposed scheme is effective for EtC systems and Enhances the compression performance, while maintaining the Security against brute-force and jigsaw puzzle solver attacks.
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grayscale based block scrambling image encryption using ycbcr color space for encryption then compression systems
APSIPA Transactions on Signal and Information Processing, 2019Co-Authors: Warit Sirichotedumrong, Hitoshi KiyaAbstract:A novel grayscale-based block scrambling image encryption scheme is presented not only to Enhance Security, but also to improve the compression performance for Encryption-then-Compression (EtC) systems with JPEG compression, which are used to securely transmit images through an untrusted channel provider. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the color-based image encryption scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks, such as jigsaw puzzle solver and brute-force attacks. Moreover, generating the grayscale-based images from a full-color image in YCbCr color space allows the use of color sub-sampling operation, which can provide the higher compression performance than the conventional grayscale-based encryption scheme, although the encrypted images have no color information. In an experiment, encrypted images were uploaded to and then downloaded from Twitter and Facebook, and the results demonstrated that the proposed scheme is effective for EtC systems and Enhances the compression performance, while maintaining the Security against brute-force and jigsaw puzzle solver attacks.
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encryption then compression systems using grayscale based image encryption for jpeg images
arXiv: Cryptography and Security, 2018Co-Authors: Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi KiyaAbstract:A block scrambling-based encryption scheme is presented to Enhance the Security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely transmit images through an untrusted channel provider, such as social network service providers. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the conventional scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. In an experiment, the Security against jigsaw puzzle solver attacks is evaluated. Encrypted images were uploaded to and then downloaded from Facebook and Twitter, and the results demonstrated that the proposed scheme is effective for EtC systems.
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grayscale based block scrambling image encryption for social networking services
International Conference on Multimedia and Expo, 2018Co-Authors: Warit Sirichotedumrong, Tatsuya Chuman, Shoko Imaizumi, Hitoshi KiyaAbstract:This paper proposes a new block scrambling encryption scheme that Enhances the Security of encryption-then-compression (EtC) systems for JPEG images, which are used, for example, to securely transmit images through an untrusted channel provider. The proposed method allows the use of a smaller block size and a larger number of blocks than the conventional ones. Moreover, images encrypted using proposed scheme include less color information due to the use of grayscale even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. The results of an experiment in which encrypted images were uploaded to and then downloaded from Twitter and Facebook demonstrated the effectiveness of the proposed scheme for EtC systems.
Zheng Chu - One of the best experts on this subject based on the ideXlab platform.
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Resource Allocations for Secure Cognitive Satellite-Terrestrial Networks
IEEE Wireless Communications Letters, 2018Co-Authors: Bin Li, Xiaoming Xu, Zesong Fei, Zheng ChuAbstract:Cognitive satellite-terrestrial networks (STNs) have been recognized as the promising architecture for addressing spectrum scarcity in the next generation communication networks. In this letter, we investigate the secure transmission schemes in the cognitive STNs where the interference from terrestrial base station (BS) is introduced to Enhance Security of the satellite link. Our objectives are to minimize the transmit power by jointly optimizing the cooperative beamforming and artificial noise (AN) while guaranteeing the secrecy rate constraint for satellite link, the information rate constraint for terrestrial link and the total transmit power constraint. Both scenarios of the perfect and imperfect channel cases are respectively considered. These constraints make the optimization problems formulated non-convex and challenging, which are efficiently solved via certain transformations to be formulated more tractable versions, respectively. Numerical results are provided to corroborate the proposed schemes.
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Resource Allocations for Secure Cognitive Satellite-Terrestrial Networks
IEEE Wireless Communications Letters, 2018Co-Authors: Zesong Fei, Zheng ChuAbstract:In this letter, we investigate the secure transmission in a cognitive satellite-terrestrial network with a multi-antennas eavesdropper, where the interference from terrestrial base station is introduced to Enhance Security of the satellite link. Our objective is to minimize the transmit power by jointly optimizing the cooperative beamforming and artificial noise while guaranteeing the secrecy rate constraint for satellite link, the information rate constraint for terrestrial link and the total transmit power constraint. Both scenarios of the perfect and imperfect channel cases are considered. The resulting optimization problems are non-convex and challenging, which are efficiently solved via certain transformations to be reformulated more tractable versions, respectively. Numerical results are provided to corroborate the proposed schemes.
Warit Sirichotedumrong - One of the best experts on this subject based on the ideXlab platform.
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encryption then compression systems using grayscale based image encryption for jpeg images
IEEE Transactions on Information Forensics and Security, 2019Co-Authors: Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi KiyaAbstract:A block scrambling-based encryption scheme is presented to Enhance the Security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely transmit the images through an untrusted channel provider, such as social network service providers. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the conventional scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. In an experiment, the Security against jigsaw puzzle solver attacks is evaluated. Encrypted images were uploaded to and then downloaded from Facebook and Twitter, and the results demonstrated that the proposed scheme is effective for EtC systems.
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grayscale based block scrambling image encryption using ycbcr color space for encryption then compression systems
APSIPA Transactions on Signal and Information Processing, 2019Co-Authors: Warit Sirichotedumrong, Hitoshi KiyaAbstract:A novel grayscale-based block scrambling image encryption scheme is presented not only to Enhance Security, but also to improve the compression performance for Encryption-then-Compression (EtC) systems with JPEG compression, which are used to securely transmit images through an untrusted channel provider. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the color-based image encryption scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks, such as jigsaw puzzle solver and brute-force attacks. Moreover, generating the grayscale-based images from a full-color image in YCbCr color space allows the use of color sub-sampling operation, which can provide the higher compression performance than the conventional grayscale-based encryption scheme, although the encrypted images have no color information. In an experiment, encrypted images were uploaded to and then downloaded from Twitter and Facebook, and the results demonstrated that the proposed scheme is effective for EtC systems and Enhances the compression performance, while maintaining the Security against brute-force and jigsaw puzzle solver attacks.
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grayscale based block scrambling image encryption using ycbcr color space for encryption then compression systems
APSIPA Transactions on Signal and Information Processing, 2019Co-Authors: Warit Sirichotedumrong, Hitoshi KiyaAbstract:A novel grayscale-based block scrambling image encryption scheme is presented not only to Enhance Security, but also to improve the compression performance for Encryption-then-Compression (EtC) systems with JPEG compression, which are used to securely transmit images through an untrusted channel provider. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the color-based image encryption scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks, such as jigsaw puzzle solver and brute-force attacks. Moreover, generating the grayscale-based images from a full-color image in YCbCr color space allows the use of color sub-sampling operation, which can provide the higher compression performance than the conventional grayscale-based encryption scheme, although the encrypted images have no color information. In an experiment, encrypted images were uploaded to and then downloaded from Twitter and Facebook, and the results demonstrated that the proposed scheme is effective for EtC systems and Enhances the compression performance, while maintaining the Security against brute-force and jigsaw puzzle solver attacks.
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encryption then compression systems using grayscale based image encryption for jpeg images
arXiv: Cryptography and Security, 2018Co-Authors: Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi KiyaAbstract:A block scrambling-based encryption scheme is presented to Enhance the Security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely transmit images through an untrusted channel provider, such as social network service providers. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the conventional scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. In an experiment, the Security against jigsaw puzzle solver attacks is evaluated. Encrypted images were uploaded to and then downloaded from Facebook and Twitter, and the results demonstrated that the proposed scheme is effective for EtC systems.
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grayscale based block scrambling image encryption for social networking services
International Conference on Multimedia and Expo, 2018Co-Authors: Warit Sirichotedumrong, Tatsuya Chuman, Shoko Imaizumi, Hitoshi KiyaAbstract:This paper proposes a new block scrambling encryption scheme that Enhances the Security of encryption-then-compression (EtC) systems for JPEG images, which are used, for example, to securely transmit images through an untrusted channel provider. The proposed method allows the use of a smaller block size and a larger number of blocks than the conventional ones. Moreover, images encrypted using proposed scheme include less color information due to the use of grayscale even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. The results of an experiment in which encrypted images were uploaded to and then downloaded from Twitter and Facebook demonstrated the effectiveness of the proposed scheme for EtC systems.
Osamu Muta - One of the best experts on this subject based on the ideXlab platform.
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employing game theory and tdma protocol to Enhance Security and manage power consumption in wsns based cognitive radio
IEEE Access, 2019Co-Authors: Mohamed S Abdalzaher, Osamu MutaAbstract:The rapid development of wireless sensor networks (WSNs) is a significant incentive to contribute to vulnerable applications such as cognitive radio (CR). This paper proposes a Stackelberg game approach to Enhance the WSN-based CR Security against the spectrum sensing data falsification (SSDF) attack and conserve the consequently lost power consumption. The attack aims to corrupt the spectrum decision by imposing interference power to the delivered reports from the sensor nodes (SNs) to the fusion center (FC) to make a protection level below a specific threshold. The proposed model utilizes the intelligent Stackelberg game features along with the matched filter (MF) to maximize the number of protected reports sent by the SNs to the FC leading to an accurate decision of the spectrum status. Furthermore, the TDMA protocol is utilized to resolve the complexity of employing MF for the spectrum detection to avoid the collision between the delivered reports. The proposed model aims to Enhance the number of correctly received reports at the FC, and hence manage the lost energy of reports retransmission due to the malicious attack effect. Moreover, the model can conserve the lost power of the failed communication attempts due to the SSDF attack impact. Simulation results indicate the improved performance of the proposed protection model along with the MF over six different environments against the SSDF attack as compared to two defense schemes, namely, random and equal weight defense strategies.
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employing game theory and tdma protocol to Enhance Security and manage power consumption in wsns based cognitive radio
arXiv: Signal Processing, 2019Co-Authors: Mohamed S Abdalzaher, Osamu MutaAbstract:The rapid development of wireless sensor networks (WSNs) is the significant incentive to contribute in the vulnerable applications such as cognitive radio (CR). This paper proposes a Stackelberg game approach to Enhance the WSN-based CR Security against the spectrum sensing data falsification (SSDF) attack and conserve the consequent lost power consumption. The attack aims to corrupt the spectrum decision by imposing interference power to the delivered reports from the sensor nodes (SNs) to the fusion center (FC) to make a protection level below a specific threshold. The proposed model utilizes the intelligent Stackelberg game features along with the matched filter (MF) to maximize the number of protected reports sent by the SNs to the FC leading to accurate decision of the spectrum status. Furthermore, the TDMA protocol is utilized to resolve the complexity of employing MF for the spectrum detection to avoid the collision between the delivered reports. The proposed model aims to Enhance the number of correctly received reports at the FC, and hence manage the lost energy of reports retransmission due to the malicious attack effect. Moreover, the model can conserve the lost power of the failure communication attempts due to the SSDF attack impact. Simulation results indicate the improved performance of the proposed protection model along with the MF over the six different environments against the SSDF attack as compared to two defense schemes, namely, random and equal weight defense strategies.
Tatsuya Chuman - One of the best experts on this subject based on the ideXlab platform.
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encryption then compression systems using grayscale based image encryption for jpeg images
IEEE Transactions on Information Forensics and Security, 2019Co-Authors: Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi KiyaAbstract:A block scrambling-based encryption scheme is presented to Enhance the Security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely transmit the images through an untrusted channel provider, such as social network service providers. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the conventional scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. In an experiment, the Security against jigsaw puzzle solver attacks is evaluated. Encrypted images were uploaded to and then downloaded from Facebook and Twitter, and the results demonstrated that the proposed scheme is effective for EtC systems.
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encryption then compression systems using grayscale based image encryption for jpeg images
arXiv: Cryptography and Security, 2018Co-Authors: Tatsuya Chuman, Warit Sirichotedumrong, Hitoshi KiyaAbstract:A block scrambling-based encryption scheme is presented to Enhance the Security of Encryption-then-Compression (EtC) systems with JPEG compression, which allow us to securely transmit images through an untrusted channel provider, such as social network service providers. The proposed scheme enables the use of a smaller block size and a larger number of blocks than the conventional scheme. Images encrypted using the proposed scheme include less color information due to the use of grayscale images even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. In an experiment, the Security against jigsaw puzzle solver attacks is evaluated. Encrypted images were uploaded to and then downloaded from Facebook and Twitter, and the results demonstrated that the proposed scheme is effective for EtC systems.
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grayscale based block scrambling image encryption for social networking services
International Conference on Multimedia and Expo, 2018Co-Authors: Warit Sirichotedumrong, Tatsuya Chuman, Shoko Imaizumi, Hitoshi KiyaAbstract:This paper proposes a new block scrambling encryption scheme that Enhances the Security of encryption-then-compression (EtC) systems for JPEG images, which are used, for example, to securely transmit images through an untrusted channel provider. The proposed method allows the use of a smaller block size and a larger number of blocks than the conventional ones. Moreover, images encrypted using proposed scheme include less color information due to the use of grayscale even when the original image has three color channels. These features Enhance Security against various attacks such as jigsaw puzzle solver and brute-force attacks. The results of an experiment in which encrypted images were uploaded to and then downloaded from Twitter and Facebook demonstrated the effectiveness of the proposed scheme for EtC systems.
