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Swap files Anti-Forensics on Linux Linux上的反取证交换文件
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878175
E. Jadied
{"title":"Swap files Anti-Forensics on Linux","authors":"E. Jadied","doi":"10.1109/APMEDIACAST.2016.7878175","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878175","url":null,"abstract":"Swap file has potentially interesting and rich source of digital evidences. Password, cryptographic key, private data and sensitive data can be found in the swap file. With a simple technique such as string matching, digital evidences can be easily found and identified. There is minimal research on swap file anti-forensics. We found that most of swap file anti-forensics techniques are still vulnerable to live acquisition. So, we propose 2 swap file anti-forensic technique: inject live swap file and fake swap file. Inject live swap file is created by injecting(flooding) fake data to live swap file using a custom script. Fake swap is created by manipulate swap file header then filling swap file with fake artefacts of our choosing. We perform this technique before user begins his/her usual activities. We able to implement Inject live swap file technique but with disadvantage of private and sensitive data leak. Making fake swap file is relatively easy and without data leak. Although these two approaches do not solve the problem of live acquisition, it could confuse, mislead and wasting examiner's time.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123620430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Simulation of broadcast level signal mobile station 3G network rain condition in Mataram 马塔兰市广播级信号移动站3G网络雨况模拟
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878166
M. Yadnya, I. Sudiartha
{"title":"Simulation of broadcast level signal mobile station 3G network rain condition in Mataram","authors":"M. Yadnya, I. Sudiartha","doi":"10.1109/APMEDIACAST.2016.7878166","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878166","url":null,"abstract":"Movement of mobile station (MS) affects the signal received from the base transceiver system (BTS). Decreased signal reception conditions, if channel exposed to rain. Rain attenuation as color noise affects signal quality. Special signal quality in mobile networks mainly 3G network signal transmission can be grouped into the drizzling rain, stratiform, medium, heavy convective and storms, have the effect of its own in the process of signal transmission. This final project will simulation and analyze the effect of rain attenuation 3G networks in the area of Mataram. The method used to obtain data one of which is a drive test method for the measurement of signal quality 3G networks. Power link budget parameters are observed is the value of RSL (Received Signal Level). The results of the research comparing the theoretical calculations with the measurements with the parameters RSL value in rainy conditions. Comparison received signal power level at the clear sky conditions and rainy conditions is −119 dBm furthest from BTS conditions, compared with the value of RSL in clear sky conditions −90 dBm. Rain Attenuation down grade in the signal received from 3G to 2G. Rain attenuation is more influential than the 3G network signal quality compared to the 2G network signal quality for the value of RSL on the 3G network reached an average of −105 dBm.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127252762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation spectrum sensing in Cognitive Radio based on signal covariance matrix 基于信号协方差矩阵的认知无线电评价频谱感知
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878177
M. H. Widianto, F. Y. Suratman, Linda Meylani
{"title":"Evaluation spectrum sensing in Cognitive Radio based on signal covariance matrix","authors":"M. H. Widianto, F. Y. Suratman, Linda Meylani","doi":"10.1109/APMEDIACAST.2016.7878177","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878177","url":null,"abstract":"Spectrum sensing is one of component in cognitive radio (CR). The sensing algorithm that usually used is the matched filter and the energy detector. Because there is a shortage in energy detector, which is very sensitive to noise power uncertainty. Then formed a new method based on the covariance matrix of the received signal. In this paper analysis on cognitive radio spectrum sensing using signal covariance matrix and energy detector. The signal space-time block coding (STBC) as a signal primary user (PU) randomly generated and then transmitted through the channel Geometrically-Based Single Bounce (GBSB). Evaluation results showed that there are several factors that influence the algorithm signal covariance matrix such as; Number of Antenna Receiver (nR), MIMO STBC scheme, Channel shape GBSB Circular and Ellips, Last algorithm signal covariance matrix resistant to noise uncertainty.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126699922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Certified multimedia statement with WebRTC and microservices 通过WebRTC和微服务认证的多媒体声明
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878170
A. Bouabdallah, Saad El Jaouhari
{"title":"Certified multimedia statement with WebRTC and microservices","authors":"A. Bouabdallah, Saad El Jaouhari","doi":"10.1109/APMEDIACAST.2016.7878170","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878170","url":null,"abstract":"The articulation between WebRTC and microservices deserves more attention and we argue that it could be highly promising. We illustrate it by the introduction, the analysis and the implementation of an innovative use case dedicated to the development of multimedia statements certified in a fair way. The generic character of this use case allows a rich set of instantiations covering various real life situations involving remote multimedia conversational exchanges. Our approach however required the development of several non trivial microservices. We thus point that the emerging of a dynamic ecosystem able to successfully deepen in this direction the full capabilities of WebRTC, might suffer from the lack of microservices off the shelf. We finally address this problematics of microservices deployment by identifying and discussing two alternatives solutions.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125586903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design and implementation of encrypted SMS on Android smartphone combining ECDSA - ECDH and AES 结合ECDSA - ECDH和AES的Android智能手机加密短信的设计与实现
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878165
Muhammad Haikal Azaim, D. W. Sudiharto, E. Jadied
{"title":"Design and implementation of encrypted SMS on Android smartphone combining ECDSA - ECDH and AES","authors":"Muhammad Haikal Azaim, D. W. Sudiharto, E. Jadied","doi":"10.1109/APMEDIACAST.2016.7878165","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878165","url":null,"abstract":"A Short Message Service (SMS) is a popular mechanism to communicate. However, for an important purpose, a mechanism to protect SMS messages is needed so the SMS messages cannot be easily read by entities who are not permitted to see. Keeping an authentication of messages, and ensuring messages are received by a right entity are also an important aspect. Maintaining confidentiality of messages, by combining symmetric and asymmetric scheme are used. The combination can be implemented by using the Advanced Encryption Standard (AES) and Elliptic Curve Diffie-Hellman (ECDH). Even so, there is a weakness while using ECDH protocol. It does not provide an authentication mechanism between entities. This means an authenticity and an integrity of messages are not fully protected. This research proposes a solution to maintain it by adding the Elliptic Curve Digital Signature algorithm (ECDSA). ECDSA is used to handle the authentication of key exchange.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132789748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Harmony search algorithm with dynamic pitch adjustment rate and fret width for image compression 具有动态音高调节率和音高宽度的图像压缩和声搜索算法
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878173
Saparudin, Ade Kurniawan
{"title":"Harmony search algorithm with dynamic pitch adjustment rate and fret width for image compression","authors":"Saparudin, Ade Kurniawan","doi":"10.1109/APMEDIACAST.2016.7878173","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878173","url":null,"abstract":"the rapid growth of image capturing technology has generated the digital images, which have high resolution and large size. In general, the large sized image quality is better because it has higher color intensity, but data transmission is relatively slow or even failing. Image compression can improve the efficiency of storage space and transmission bandwidth usage. However, the image compression, which is categorized as lossy can reduce image quality. This paper implements improved harmony search (HS) algorithm for compression of color images by minimizing the reduction in image quality. The parameters of original HS algorithms including pitch adjustment rate (PAR) and fret width (FW) are fixed, whereas in improved HS algorithm, PAR and FW changed dynamically in accordance with the generation of solution vectors. Experimental results show color image compression using improved HS algorithm is better than original HS algorithm and other method.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129207746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Collaborative Spectrum Sensing for OFDM with autocorrelation-based detector and 2-bit decision 基于自相关检测器和2位判决的OFDM协同频谱感知
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878180
E. Sonjaya, H. Wijanto, F. Y. Suratman
{"title":"Collaborative Spectrum Sensing for OFDM with autocorrelation-based detector and 2-bit decision","authors":"E. Sonjaya, H. Wijanto, F. Y. Suratman","doi":"10.1109/APMEDIACAST.2016.7878180","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878180","url":null,"abstract":"One of the major components of cognitive radio is its ability to detect the availability of unused spectrum. Detection for the presence or absence of the spectrum hole plays a very important role before the frequency spectrum is used. Previous research in the field of spectrum detection for cognitive radio has been done for the distributed detection using energy detector with 2-bit decision but its application has not been used for OFDM (Orthogonal Frequency Division Multiplexing) signal. A new method of OFDM signal detection was introduced using autocorrelation-based detector but only using 1-bit decision. In this study, the authors examine the spectrum detection method for OFDM cognitive radio with distributed detection using autocorrelation-based detector method with 2-bit decision. The results of this study shown that by using an autocorrelation-based detector with 2-bit decision information in spectrum detection for OFDM cognitive radio, the probability of detection can be increased when compared to using an autocorrelation-based detector with 1-bit decision information.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127464570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolated word Automatic Speech Recognition (ASR) System using MFCC, DTW & KNN 基于MFCC、DTW和KNN的孤立词自动语音识别系统
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878163
Muhammad Atif Imtiaz, G. Raja
{"title":"Isolated word Automatic Speech Recognition (ASR) System using MFCC, DTW & KNN","authors":"Muhammad Atif Imtiaz, G. Raja","doi":"10.1109/APMEDIACAST.2016.7878163","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878163","url":null,"abstract":"Automatic Speech Recognition (ASR) System is defined as transformation of acoustic speech signals to string of words. This paper presents an approach of ASR system based on isolated word structure using Mel-Frequency Cepstral Coefficients (MFCC's), Dynamic Time Wrapping (DTW) and K-Nearest Neighbor (KNN) techniques. The Mel-Frequency scale used to capture the significant characteristics of the speech signals; features of speech are extracted using MFCC's. DTW is applied for speech feature matching. KNN is employed as a classifier. The experimental setup includes words of English language collected from five speakers. These words were spoken in an acoustically balanced, noise free environment. The experimental results of proposed ASR system are obtained in the form of matrix called confusion matrix. The recognition accuracy achieved in this research is 98.4 %.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122840794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
Personalized dynamic ad insertion with MPEG DASH 个性化动态广告插入与MPEG DASH
2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast) Pub Date : 2016-11-01 DOI: 10.1109/APMEDIACAST.2016.7878162
S. Pham, Christopher Krauss, D. Silhavy, S. Arbanowski
{"title":"Personalized dynamic ad insertion with MPEG DASH","authors":"S. Pham, Christopher Krauss, D. Silhavy, S. Arbanowski","doi":"10.1109/APMEDIACAST.2016.7878162","DOIUrl":"https://doi.org/10.1109/APMEDIACAST.2016.7878162","url":null,"abstract":"MPEG DASH enables OTT delivery of media content to almost any device. From a commercial point of view, dynamic ad insertion plays a crucial role. For broadcasters, content owners and advertisers new opportunities open up as advertisement can be personalized and delivered to any device. We show different approaches for selecting personalized advertisements via ad decision servers. Moreover, we evaluate existing ad insertion techniques and present solutions for interoperable ad insertion using MPEG DASH. We have extended the open source DASH Industry Forum's reference player “dash.js” with mechanisms for ad insertion. HTML5-based platforms can be targeted this way. We present different ad insertion workflows and highlight the flexibility that can be achieved with state-of-the-art technologies and standards.","PeriodicalId":177765,"journal":{"name":"2016 Asia Pacific Conference on Multimedia and Broadcasting (APMediaCast)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128180121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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