Pub Date : 2021-12-17DOI: 10.1109/WoWMoM54355.2022.00050
José Álamos, Peter Kietzmann, T. Schmidt, Matthias Wählisch
LoRa is a popular wireless technology that enables low-throughput (bytes) long-range communication (km) at low energy consumption (mW). Its transmission, though, is on one side prone to interference during long on-air times, and on the other side subject to duty cycle restrictions. LoRaWAN defines a MAC and a vertical stack on top of LoRa. LoRaWAN circumvents the above limitations by imposing a centralized network architecture, which heavily reduces downlink capacity and prevents peer-to-peer communication. This makes it unusable for many deployments. The Deterministic and Synchronous Multichannel Extension (DSME) of IEEE 802.15.4e benefits of time-slotted communication and peer-to-peer communication and has the potential to overcome LoRaWAN limitations. In this work, we implement DSME on top of LoRa in the open source IoT OS RIOT and open the field for first evaluation experiments on real hardware. Initial results indicate that DSME-LoRa not only enables reliable peer-to-peer communication for constrained IoT devices, but also scales with an increasing number of nodes.
{"title":"WIP: Exploring DSME MAC for LoRa – A System Integration and First Evaluation","authors":"José Álamos, Peter Kietzmann, T. Schmidt, Matthias Wählisch","doi":"10.1109/WoWMoM54355.2022.00050","DOIUrl":"https://doi.org/10.1109/WoWMoM54355.2022.00050","url":null,"abstract":"LoRa is a popular wireless technology that enables low-throughput (bytes) long-range communication (km) at low energy consumption (mW). Its transmission, though, is on one side prone to interference during long on-air times, and on the other side subject to duty cycle restrictions. LoRaWAN defines a MAC and a vertical stack on top of LoRa. LoRaWAN circumvents the above limitations by imposing a centralized network architecture, which heavily reduces downlink capacity and prevents peer-to-peer communication. This makes it unusable for many deployments. The Deterministic and Synchronous Multichannel Extension (DSME) of IEEE 802.15.4e benefits of time-slotted communication and peer-to-peer communication and has the potential to overcome LoRaWAN limitations. In this work, we implement DSME on top of LoRa in the open source IoT OS RIOT and open the field for first evaluation experiments on real hardware. Initial results indicate that DSME-LoRa not only enables reliable peer-to-peer communication for constrained IoT devices, but also scales with an increasing number of nodes.","PeriodicalId":275324,"journal":{"name":"2022 IEEE 23rd International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132981576","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 : 2021-04-17DOI: 10.1109/WoWMoM54355.2022.00078
Raman Singh, Ark Nandan Singh Chauhan, H. Tewari
In this era of ubiquitous social media and messaging applications, users are becoming increasingly aware of the data privacy issues associated with such apps. Major messaging applications are moving towards end-to-end encryption (E2EE) to give their users the privacy they are demanding. However the current security mechanisms employed by different service providers are not unfeigned E2EE implementations, and are blended with many vulnerabilities. At present, the major part of the E2EE mechanism is controlled by the service provider’s servers, and the decryption keys are also stored by them in case of backup restoration. These shortcomings diminish user confidence in the privacy of their data when using these apps. A public key infrastructure (PKI) can be used to circumvent some of these issues, but it comes with high monetary costs, which makes it impossible to roll out on a global scale. This paper proposes a blockchain-based E2EE framework that can mitigate many of the contemporary vulnerabilities in today’s messaging applications. A user’s device generates the public/private key pair during application installation, and asks its mobile network operator (MNO) to issue a digital certificate and store it on a public blockchain. Any user can fetch a certificate for another user from the application server, and communicate securely with them using a ratchet forward encryption mechanism.
{"title":"Blockchain-enabled End-to-End Encryption for Instant Messaging Applications","authors":"Raman Singh, Ark Nandan Singh Chauhan, H. Tewari","doi":"10.1109/WoWMoM54355.2022.00078","DOIUrl":"https://doi.org/10.1109/WoWMoM54355.2022.00078","url":null,"abstract":"In this era of ubiquitous social media and messaging applications, users are becoming increasingly aware of the data privacy issues associated with such apps. Major messaging applications are moving towards end-to-end encryption (E2EE) to give their users the privacy they are demanding. However the current security mechanisms employed by different service providers are not unfeigned E2EE implementations, and are blended with many vulnerabilities. At present, the major part of the E2EE mechanism is controlled by the service provider’s servers, and the decryption keys are also stored by them in case of backup restoration. These shortcomings diminish user confidence in the privacy of their data when using these apps. A public key infrastructure (PKI) can be used to circumvent some of these issues, but it comes with high monetary costs, which makes it impossible to roll out on a global scale. This paper proposes a blockchain-based E2EE framework that can mitigate many of the contemporary vulnerabilities in today’s messaging applications. A user’s device generates the public/private key pair during application installation, and asks its mobile network operator (MNO) to issue a digital certificate and store it on a public blockchain. Any user can fetch a certificate for another user from the application server, and communicate securely with them using a ratchet forward encryption mechanism.","PeriodicalId":275324,"journal":{"name":"2022 IEEE 23rd International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125140769","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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