Pub Date : 2022-06-08DOI: 10.1109/iceast55249.2022.9826324
Mohamed Boussif
WhatsApp, Signal, VeraCrypt, 7-zip, and WinZip use AES (Advanced Encryption Standard) to encrypt data in unsafe communications or storage. Moreover, it is implemented in many processors such as Westmere and Jaguar. Therefore, it is essential to provide a security analysis of this encryption system. This paper presents cryptanalysis for AES in encrypting blocks and multimedia data. The study is for all AES modes, i.e., ECB mode abbreviation of Electronic Code Book, CBC mode abbreviation of Cipher Block Chaining, CFB mode abbreviation of Cipher Feedback, OFB mode abbreviation of Output Feedback, and CTR mode abbreviation of Counter. Several analyses are provided for only block encryption as passwords and multimedia data such as audio, videos, and images. Foremother, we study its runtime by comparing it with other encryption algorithms in the same hardware. Results show all types of attacks can break AES and attacks that AES can confront.
{"title":"On The Security of Advanced Encryption Standard (AES)","authors":"Mohamed Boussif","doi":"10.1109/iceast55249.2022.9826324","DOIUrl":"https://doi.org/10.1109/iceast55249.2022.9826324","url":null,"abstract":"WhatsApp, Signal, VeraCrypt, 7-zip, and WinZip use AES (Advanced Encryption Standard) to encrypt data in unsafe communications or storage. Moreover, it is implemented in many processors such as Westmere and Jaguar. Therefore, it is essential to provide a security analysis of this encryption system. This paper presents cryptanalysis for AES in encrypting blocks and multimedia data. The study is for all AES modes, i.e., ECB mode abbreviation of Electronic Code Book, CBC mode abbreviation of Cipher Block Chaining, CFB mode abbreviation of Cipher Feedback, OFB mode abbreviation of Output Feedback, and CTR mode abbreviation of Counter. Several analyses are provided for only block encryption as passwords and multimedia data such as audio, videos, and images. Foremother, we study its runtime by comparing it with other encryption algorithms in the same hardware. Results show all types of attacks can break AES and attacks that AES can confront.","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129655182","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}
Pub Date : 2022-06-08DOI: 10.1109/iceast55249.2022.9826319
Isoon Kanjanasurat, Nontacha Domepananakorn, T. Archevapanich, B. Purahong
This paper compares two image enhancement techniques with five convolutional neural network (CNN) models to classify Covid-19 chest x-ray images. a contrast limited adaptive histogram (CLAHE) and gamma correction which is method to improve image histogram are compared with the original chest x-ray image. We use five publicly available pre-trained CNN models to detect COVID-19: MobileNet, MobileNetV2, DenseNet169, DenseNet201, and ResNet50V2. Our procedure was validated using the COVID-19 radiography database, which is a freely accessible resource. MoblileNet with gamma correction is well-suited for COVIC-19 classification, achieving an accuracy score of 87.53 percent on the first epoch and 95.46 percent after training 100 epochs with the shortest computation time.
{"title":"Comparison of image enhancement techniques and CNN models for COVID-19 classification using chest x-rays images","authors":"Isoon Kanjanasurat, Nontacha Domepananakorn, T. Archevapanich, B. Purahong","doi":"10.1109/iceast55249.2022.9826319","DOIUrl":"https://doi.org/10.1109/iceast55249.2022.9826319","url":null,"abstract":"This paper compares two image enhancement techniques with five convolutional neural network (CNN) models to classify Covid-19 chest x-ray images. a contrast limited adaptive histogram (CLAHE) and gamma correction which is method to improve image histogram are compared with the original chest x-ray image. We use five publicly available pre-trained CNN models to detect COVID-19: MobileNet, MobileNetV2, DenseNet169, DenseNet201, and ResNet50V2. Our procedure was validated using the COVID-19 radiography database, which is a freely accessible resource. MoblileNet with gamma correction is well-suited for COVIC-19 classification, achieving an accuracy score of 87.53 percent on the first epoch and 95.46 percent after training 100 epochs with the shortest computation time.","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117271548","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}
Pub Date : 2022-06-08DOI: 10.1109/iceast55249.2022.9826334
K. Thungsook, S. Promwong, N. Pattanadech
Partial discharge is the main problem that can lead to insulation failure or breakdown of high voltage equipment. An important and widely accepted process that can determine or ascertain partial discharge (PD) phenomena is the ultra-high frequency (UHF) method applied for monitoring HV apparatus and appraisal. This research explains the bandwidth verification of the on-site UHF sensor for partial discharge measurement. The researchers used a vector network analyzer for measuring the reflection coefficient (s11) of the UHF antenna compared to the voltage of the incident wave. In this research, 16 UHF sensors were used in the experiment. The reflection coefficient value and relevant parameters of high-frequency signals detected indicate the sensitivity and bandwidth of the antenna applied for PD detection in HV equipment. The reflection coefficient will be used as a criterion for selecting a UHF sensor type for partial discharge measurement.
{"title":"The Bandwidth Verification of on-site UHF Sensor for Partial Discharge Measurement","authors":"K. Thungsook, S. Promwong, N. Pattanadech","doi":"10.1109/iceast55249.2022.9826334","DOIUrl":"https://doi.org/10.1109/iceast55249.2022.9826334","url":null,"abstract":"Partial discharge is the main problem that can lead to insulation failure or breakdown of high voltage equipment. An important and widely accepted process that can determine or ascertain partial discharge (PD) phenomena is the ultra-high frequency (UHF) method applied for monitoring HV apparatus and appraisal. This research explains the bandwidth verification of the on-site UHF sensor for partial discharge measurement. The researchers used a vector network analyzer for measuring the reflection coefficient (s11) of the UHF antenna compared to the voltage of the incident wave. In this research, 16 UHF sensors were used in the experiment. The reflection coefficient value and relevant parameters of high-frequency signals detected indicate the sensitivity and bandwidth of the antenna applied for PD detection in HV equipment. The reflection coefficient will be used as a criterion for selecting a UHF sensor type for partial discharge measurement.","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114778932","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}
Pub Date : 2022-06-08DOI: 10.1109/ictemsys.2017.7958754
A. Jangwanitlert
{"title":"Message from Honorary Chairs","authors":"A. Jangwanitlert","doi":"10.1109/ictemsys.2017.7958754","DOIUrl":"https://doi.org/10.1109/ictemsys.2017.7958754","url":null,"abstract":"","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128881361","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}
Pub Date : 2022-06-08DOI: 10.1109/iceast55249.2022.9826323
S. Promwong, Thanadol Tiengthong, A. Chaisang
Short-range wireless communication with low power and high data rate is a key to the future development of wireless body area network systems. Ultra-wideband technology can achieve the primary wireless communication requirements around the human vicinity. Hence, understanding the human body's effect on wireless communication systems is very important to investigate. This paper will present the evaluation scheme for the ultra-wideband human body channel characteristics in an indoor environment. The experimental is divided into two different scenarios, i.e., line-of-sight and non-line-of-sight, based on the actual wireless body area network applications. The experimental parameters cover the full band of the ultra-wideband regarding the FCC regulation of the ultra-wideband technology. The vector network analyzer and antennas are included in the experiment to measure and record the data. The channel transfer function evaluation results are path loss and delay characteristics. The contributions are useful for further development in the future wireless body area network applications as the basic knowledge of the human body effects.
{"title":"Experimental Evaluation of UWB-HB Transfer Function with LOS and NLOS for WBAN","authors":"S. Promwong, Thanadol Tiengthong, A. Chaisang","doi":"10.1109/iceast55249.2022.9826323","DOIUrl":"https://doi.org/10.1109/iceast55249.2022.9826323","url":null,"abstract":"Short-range wireless communication with low power and high data rate is a key to the future development of wireless body area network systems. Ultra-wideband technology can achieve the primary wireless communication requirements around the human vicinity. Hence, understanding the human body's effect on wireless communication systems is very important to investigate. This paper will present the evaluation scheme for the ultra-wideband human body channel characteristics in an indoor environment. The experimental is divided into two different scenarios, i.e., line-of-sight and non-line-of-sight, based on the actual wireless body area network applications. The experimental parameters cover the full band of the ultra-wideband regarding the FCC regulation of the ultra-wideband technology. The vector network analyzer and antennas are included in the experiment to measure and record the data. The channel transfer function evaluation results are path loss and delay characteristics. The contributions are useful for further development in the future wireless body area network applications as the basic knowledge of the human body effects.","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127536320","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}
Pub Date : 2022-06-08DOI: 10.1109/iceast55249.2022.9826337
V. Wuti, S. Trakuldit, A. Luangpol, K. Tattiwong, Alisala Taylim, C. Bunlaksananusorn
A conventional forward converter requires a transformer having an extra winding to assist in magnetic core reset, thus complicating the design and increasing the production cost. These shortcomings can be overcome by using an RCD clamp forward converter. This article presents a simplified analysis and design of the RCD clamp forward converter. The laboratory prototype is constructed. Experimental results demonstrates that the prototype converter is capable of providing a constant output voltage throughout its operating condition and has the maximum efficiency of 85%.
{"title":"A Simplified Analysis and Design of an RCD Clamp Forward Converter","authors":"V. Wuti, S. Trakuldit, A. Luangpol, K. Tattiwong, Alisala Taylim, C. Bunlaksananusorn","doi":"10.1109/iceast55249.2022.9826337","DOIUrl":"https://doi.org/10.1109/iceast55249.2022.9826337","url":null,"abstract":"A conventional forward converter requires a transformer having an extra winding to assist in magnetic core reset, thus complicating the design and increasing the production cost. These shortcomings can be overcome by using an RCD clamp forward converter. This article presents a simplified analysis and design of the RCD clamp forward converter. The laboratory prototype is constructed. Experimental results demonstrates that the prototype converter is capable of providing a constant output voltage throughout its operating condition and has the maximum efficiency of 85%.","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125417288","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}
Pub Date : 2022-06-08DOI: 10.1109/iceast55249.2022.9826315
Y. Kittikhuntharadol, T. Worthong, N. Pattanadech
Mineral oil has long been utilized in transformers due to its low cost and suitable qualities. Alternative liquid insulations with great characteristics have recently been presented, and natural ester was considered. Pressboard is a type of cellulose insulation used for electrical insulation and mechanical support. This paper intends to study pressboard impregnated with natural ester under thermal stress. The pressboards and the natural ester were prepared for the experiment. Vacuum ovens were used for moisture elimination of materials and the impregnation process. The test specimens consisted of impregnated pressboards for 0, 8, 16, and 24 hours with thermal stress by heating at 150 degrees Celsius in a vacuum oven for 0, 30, and 90 days. Polarization and depolarization current (PDC) of the test specimens were investigated in each period by PDC-Analyser 1MOD. The test cell for PDC measurement was designed according to JIS C2111, and it was clean before the experiment. The PDC characteristics of the pressboard that had been subjected to thermal stress were discovered to be slightly different when compared with the same impregnation time of the pressboard.
{"title":"Polarization and Depolarization Current of Pressboard Impregnated with Natural Ester under Thermal Stress","authors":"Y. Kittikhuntharadol, T. Worthong, N. Pattanadech","doi":"10.1109/iceast55249.2022.9826315","DOIUrl":"https://doi.org/10.1109/iceast55249.2022.9826315","url":null,"abstract":"Mineral oil has long been utilized in transformers due to its low cost and suitable qualities. Alternative liquid insulations with great characteristics have recently been presented, and natural ester was considered. Pressboard is a type of cellulose insulation used for electrical insulation and mechanical support. This paper intends to study pressboard impregnated with natural ester under thermal stress. The pressboards and the natural ester were prepared for the experiment. Vacuum ovens were used for moisture elimination of materials and the impregnation process. The test specimens consisted of impregnated pressboards for 0, 8, 16, and 24 hours with thermal stress by heating at 150 degrees Celsius in a vacuum oven for 0, 30, and 90 days. Polarization and depolarization current (PDC) of the test specimens were investigated in each period by PDC-Analyser 1MOD. The test cell for PDC measurement was designed according to JIS C2111, and it was clean before the experiment. The PDC characteristics of the pressboard that had been subjected to thermal stress were discovered to be slightly different when compared with the same impregnation time of the pressboard.","PeriodicalId":441430,"journal":{"name":"2022 8th International Conference on Engineering, Applied Sciences, and Technology (ICEAST)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127371631","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}
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