Subscriber Identity Research Articles

Performance-Security Analysis in O2O Interactions in Future 6G Communications

In traditional mobile networks, trust between subscribers and their serving networks relies on a hardware root-of-trust: the Subscriber Identity Module (SIM). Conversely, trust between service and home networks is established via Trusted Third Parties (TTPs), known as Clearing Houses (CHs). The 6G environment will witness a substantial increase in subscriber numbers, driven by the mass deployment of the Internet of Everything (IoE) and improvements in network performance. Simultaneously, the performance capabilities required of TTPs to manage trustworthy operator-to-operator (O2O) interactions in 6G must align with the demands of the 6G ecosystem. This work focuses on enhancing CH intermediation capabilities to support O2O trustworthy interactions within the 6G context. Given the close connection between performance and trustworthiness, this paper explores these aspects by modeling interactions between communication parties using a Petri Net model. This model is applied to analyze the quantitative relationships among the non-functional requirements of future 6G communication scenarios, considering both traditional and blockchain-based approaches.

Automatic Mobile Network User Identification System: Idea and Tips

The purpose of designing an automatic system to identify mobile network users is to control the entry and exit of users to a specific location. The main idea is to set up a fake pseudo-base transceiver station (BTS) between the mobile phone and the nearest BTS. The mobile phone regularly reports its location to the nearest BTS. The key task is to search for the signal sent to the pseudo-BTS and extract the international mobile subscriber identity (IMSI) information. The proposed system will be able to communicate up to 12-30 meters. In addition, the system does not require a near-field communication tag, because the information is decoded by the communication protocols of the mobile network. Therefore, even the simplest and most basic mobile phones are identified by the system. In this paper, in addition to presenting the main idea, the hardware and software structures of the system are also described.

IDENTIFICATION OF MOBILE DEVICES BY CORRELATION FEATURES OF THEIR SIGNAL SPECTRA

Context. The mass spread of Wi-Fi networks is facilitated by the simplicity of their deployment, high speed, universality, and convenience of use. The development and dissemination of these networks continue despite a number of shortcomings. One of the shortcomings is their vulnerability to various types of attacks, including those based on the forgery (imitation) of identification data. At the same time, there are physical layer characteristics, knowledge of which expands the understanding of the network’s state, can contribute to increasing the reliability of network subscriber identification, and thus prevent a number of attacks. This research is aimed at the theoretical and practical substantiation of the possibility of their application. Objective. The aim of the study is to assess the application of detailed analysis of signal spectra emitted by devices connected to wireless Wi-Fi networks for their identification. To achieve this goal, it is necessary to analyze the experimentally measured spectra of wireless devices connected to the Wi-Fi network and evaluate the possibility of using the spectrum for the identification of mobile devices. Method. This work proposes a method for processing the results of measuring the spectra of Wi-Fi device emissions by evaluating the asymmetry coefficient of the Wi-Fi device spectrum’s cross-correlation function. Mathematical modeling was used to assess the effectiveness of the method. Results. The research results show that the minimum value of the asymmetry coefficient when comparing the template with different positions of one’s own device, and large values of the asymmetry coefficient when comparing templates with foreign spectra. Therefore, this characteristic can also be used for the identification of Wi-Fi devices. Conclusions. The research results suggest the possibility of applying the proposed method for the identification of mobile devices, which will qualitatively complement existing security models with another feature for detecting unauthorized access.

Analysis on the Acculturation of English to Sasak among Sasak Native Speakers

AbstractThe purpose of this research is to investigate the acculturation between Sasak language and English among Sasak native speakers, and to identify which words or phrases have been absorbed and used in Sasak daily communication. This research was conducted in Selakerat, Perian Village, Montong Gading District, Lombok Timur Regency. This research uses a qualitative descriptive method. The researcher employed observation, interview, and field note for data collection. The subjects of this study were nine native speakers of Sasak language of various ages residing in Selakerat. The results of this study indicate that language acculturation has occurred between Sasak language and English among Sasak native speakers in Selakerat, Perian Village in their daily communication. Some English words that have been absorbed and are frequently used in daily language include download, transfer, live, loading, log-in, by one, kill, like, top-up, reload, ID (identity), pet, peach, emote, skill, bot, gold, platinum, eyeliner, rank, map, lobby, account, make-up, cream, skincare, SIM (subscriber identity module), content, creator, skin, match, event, diamond, cream, viral, and pink, and several phrases like fake account (account fake), eye shadow, triple kill and trial emote (emote trial).

Filipino attitude and perception on Subscriber Identity Module (SIM) Card Registration Act

The SIM Card Registration Act, a legislative initiative in the Philippines, mandates the registration of Subscriber Identity Module (SIM) cards to enhance security, monitor mobile phone usage, and curb crimes such as fraud, terrorism, and phishing. This phenomenological study explores the attitude and perceptions of individuals on the implementation of the Act, with a focus on how it impacts their sense of security, privacy, and everyday mobile phone use. Semi-structured interviews were conducted with 15 participants, aged 16 to 64, from the different barangays in San Pablo City, Laguna, Philippines. Data were analysed thematically, capturing participants' unique perspectives on the benefits and risks associated with the Act. The findings reveal that while participants acknowledged the Act's potential to prevent crimes and phishing, concerns about personal data security and the possibility of identity theft were prevalent. Participants’ attitudes toward the Act were shaped by their experiences with mobile phone technology and privacy concerns, with older respondents expressing heightened sensitivity to data privacy. These insights underscore the need for more robust security measures in the registration process to enhance public trust. The study concludes with recommendations to improve user experience and safeguard personal information, offering a foundation for policy refinements and further research.

A novel authentication scheme for long-term evolution mobility management: A security investigation

Long-term evolution in wireless broadband communication aims to provide secure communication for users and a high data rate for a fourth-generation network. Even though the fourth-generation network provides security, some loopholes lead to several attacks on the fourth-generation network attacks. The denial-of-service attack occurs when the user communicates with a rogue base station, and the radio base station in fourth-generation long-term evolution networks ensures that the user is attached to the rogue node assigned network. The location leak attack occurs when the packets are sniffed to find any user’s location using its temporary mobile subscriber identity. Prevention of rogue base station and location leak attacks helps the system achieve secure communication between the participating entities. Earlier works in long-term evolution mobility management do not address preventing attacks such as denial-of-service, rogue base stations and location leaks and suffer from computational costs while providing security features. Hence, the present paper addresses the vulnerability of these attacks. It also investigates how these attacks occur and exposes communication in the fourth-generation network. To mitigate these vulnerabilities, the paper proposes a novel authentication scheme. The proposed scheme is simulated using Network Simulator 3, and the security analysis of the proposed scheme is shown using AVISPA –a security tool. Numerical analysis demonstrates that the proposed scheme significantly reduces communication overhead and computational costs associated with the fourth-generation long-term evolution authentication mechanism.

Enhancing Wireless Security and Privacy: A 2-Way Identity Authentication Method for 5G Networks

The communication network would have potential uses dependent on the infrastructure once the fifth generation (5G) network is fully commercialized. Subscriber Identification Module (SIM) authentication is a well-known mechanism for safeguarding the confidentiality of wireless device users. Fifth-generation computer technologies are very advanced in certification based on geolocation, regular confirmation, and authentication mechanisms. The clonable authentication feature solves the issue of authentication using duplicate modules. In highly dynamic environments, the problem poses a risk to privacy protection, adaptiveness, self-organization, information leakage, and the reliability of services. The article introduces a 2-way identity authentication method (2WIAM) using a Physical Unclonable Function (PUF) to address the issue above. The suggested technique for detecting module clones depends on user-provided authentication and geolocation data. The 2-way mutual authentication used in the suggested technique is a clever way to combine the many wireless technologies accessible to a given network node and enable the creation of wireless on-demand service providers and networks. The initial stage involves immediate passcode authentication, and the second is verifying the identity of the mobile equipment and any shifts or copies in its physical position. A new-cross authentication is then carried out to determine the identity of the clone's physical counterpart. In prior authentication situations, the choice to provide authorization or ban the clone was made fairly and objectively. The experiment results show that the users' privacy is protected, enhanced adaptiveness and the amount of data lost is limited.

Embedded-SIM (E-SIM) an Overview in Latin America: Implementation, Availability, Advantages and Disadvantages

Search new forms for data management and security is a continuous tendency for mobile operators. Proof of this is the trend of the latest technology related to the Embedded Subscriber Identity Module or Embedded-SIM (E-SIM). Recently there was an increase in the number of devices that offer this technology as a security element for the access to the network, however, it is clear the lack of consistent information for the implementation of this technology within Latin America. This research presents a current overview about the evolution of the embedded subscriber identity module, aiming to present the general characteristics that are part of the network, evaluate the current status of implementation and adoption with Latin America carriers, showing the obstacles in the process of acceptance of new technology by users as well as the advantages, disadvantages of E-SIM in relation to the traditional SIM Card. The investigation was carried out through documentary surveys and field research, the data was collected to demonstrate the current perspective of the implementation of E-SIM and adoption by customers and network operators in Latin America. The observed results showed that the adoption of E-SIM in Latin America has been increasing, it was observed that most countries have at least one carrier that makes available and offers this service. Regarding the advantages and disadvantages, evidence has been observed place E-SIM like a better technology than a SIM Card.

Finding women in fishing communities around Lake Victoria: "Feasibility and acceptability of using phones and tracking devices".

Women in fishing communities have both high HIV prevalence and incidence, hence they are a priority population for HIV prevention and treatment interventions. However, their mobility is likely to compromise the effectiveness of interventions. We assessed the acceptability, feasibility and of using phones and global positioning system (GPS) devices for tracking mobility, to inform future health research innovations. A mult-site formative qualitative study was conducted in six purposively selected Fishing Communities on the shores of Lake Victoria in Kenya, Tanzania, and Uganda. Participants were selected based on duration of stay in the community and frequency of movement. Sixty-four (64) women participated in the study (16 per fishing community). Twenty-four (24) participants were given a study phone; 24 were asked to use their own phones and 16 were provided with a portable GPS device to understand what is most preferred. Women were interviewed about their experiences and recommendations on carrying GPS devices or phones. Twenty four (24) Focus Group Discussions with 8-12 participants were conducted with community members to generate data on community perceptions regarding GPS devices and phones acceptability among women. Data were analyzed thematically and compared across sites/countries. Women reported being willing to use tracking devices (both phones and GPS) because they are easy to carry. Their own phone was preferred compared to a study phone and GPS device because they were not required to carry an additional device, worry about losing it or be questioned about the extra device by their sexual partner. Women who carried GPS devices suggested more sensitization in communities to avoid domestic conflicts and public concern. Women suggested changing the GPS colour from white to a darker colour and, design to look like a commonly used object such as a telephone Subscriber Identity Module (SIM) card, a rosary/necklace or a ring for easy and safe storage. Women in the study communities were willing to have their movements tracked, embraced the use of phones and GPS devices for mobility tracking. Devices need to be redesigned to be more discrete, but they could be valuable tools to understanding movement patterns and inform design of interventions for these mobile populations.

Secure authentication scheme to thwart known authentication attacks using Mobile Device

Recently, the use of two-factors authentication (2FA) has increased to mitigate the risk of stealing user credentials. Most of 2FA use a mobile device to complete the authentication process, but many of them require an Internet connection or a subscriber identity module (SIM) chip to activate the synchronization of the One Time Password (OTP), which may not be guaranteed all the time or may not be equipped in the user's phone in the first place. Thus, this paper attempts to overcome this problem by adopting the camera of the mobile device and QR code to verify the OTP instead of relying on the Internet connection or cellular network. The proposed approach involves encrypting keys and secret codes with symmetric and asymmetric keys for added security, and using QR to exchange those codes fast and more easily, including a code suffix to prevent phishing attacks. Security analysis proves that the scheme is immune to many well-known attacks such as MITM, Shoulder surfing Keylogger, Phishing Attacks, etc. This scheme could contribute to adding a secure, practical, and easy-to-use option to diversify of 2FA if it is adopted by service providers such as Google, Meta, and Microsoft. Keywords: Authentication; Two-Factor Authentication (2FA); Mobile device ; One-Time-Password (OTP); Challenge Response Protocol and Quick Response (QR) Code

Security Improvement of Authentication and Key Agreement Protocol for Subscriber Identity

Security Improvement of Authentication and Key Agreement Protocol for Subscriber Identity

Safeguarding the IoT: Taxonomy, security solutions, and future research opportunities

AbstractWith the advancement of innovative technologies, the Internet of Things (IoT) has become quite popular in various applications such as smart homes, smart cities, agriculture, healthcare, and so forth. However, the heterogeneity of IoT protocols can pose security challenges to wireless networks. Thus, we have presented a systematic review of IoT technologies such as ZigBee, Radio Frequency Identification (RFID), Bluetooth, WiFi, Ethernet, AR, embedded subscriber identification modules (E‐SIM), and smart sensors, along with their communication protocols, which are part of the IoT‐layered architecture. We have bifurcated the IoT‐layered architecture into the perception, network, and application layers. Furthermore, we have presented IoT security attacks associated with the perception, network, and application layers of the IoT‐layered architecture. Moreover, we have discussed several IoT security solutions, open issues, and research challenges dedicated to the security of IoT networks. IoT security solutions can provide secure and efficient data communication over wireless networks.

Application System Development of Accident Prevention and Safety Assistance using IoT Application

The number of road accidents in Malaysia shows a steady increment from 2010 to 2019, reported by the Ministry of Transport Malaysia. This project aims to develop a system to prevent an accident by detecting aggressive driving. If an accident occurred, this system would send an alert for an immediate response, which is crucial to reduce the fatality rate. An accelerometer is utilized to detect aggressive driving and accident events. The method to detect aggressive driving is by determining an abrupt change in acceleration. For accident detection, the vehicle tilt angle and acceleration are monitored. An ESP32 SIM800L microcontroller processes the inputs and alert a web-based cloud service and a set phone number by Short Message Service (SMS). The microcontroller is used due to the embedded Global System for Mobile Communications (GSM) and other wireless communication modules. The small form factor gives an advantage in terms of mounting location flexibility. The alert contains the type of event, time, and location. This report contains the development of the proposed system, which includes the simulation for the system circuit and motion simulation. Accident detection, falls, SMS alerts and online alerts are consistently successful, while aggressive driving detection is inconsistent. Live tracking does not directly work during these detections. In conclusion, this project successfully detects accidents and sends alerts via SMS and internet using a Subscriber Identity Module (SIM) card.

Multicriteria Decision Making for the Choice of the Global System for Mobile Telecommunication

When multiple conflicting criteria are available and must be considered, Multi-Criteria Decision Making (MCDM), a subfield of operations research, aids the decision maker in addressing the problem. The use of MCDM, a valuable and effective technique that may be applied in situations of certainty or uncertainty, makes it easier to integrate quantitative and qualitative assessments into scientific procedures. However, many Nigerians are found to retain more than one Subscriber Identity Module (SIM) in response to which of the network providers is best suited to meet their needs. This will help to minimize the number of SIM cards each person will carry, consequently reducing the cost of maintaining them. The aim of this study is to recognize and prioritize the most important mobile service provider criteria in the telecom industry in Borno State, Nigeria. Seven attributes were selected from the literature and customers. Questionnaires were systematically distributed, utilizing convenience and deliberate sampling, to 1200 customers. MTN and AIRTEL are the two most preferred service providers over the other operators within the competitive environment. It is advised that to increase their customer base, service providers in the research region enhance network connectivity, low call rates, and voice clarity.

An eSIM-based remote credential provisioning and authentication protocol for IoT devices in 5G cellular network

An eSIM-based remote credential provisioning and authentication protocol for IoT devices in 5G cellular network

Pricing eSIM Services: Ecosystem, Challenges, and Opportunities

The adoption of embedded subscriber identity module (eSIM) is accelerating rapidly and is anticipated to prevail over conventional physical SIM cards in the next few years. With several phone vendors switching to eSIMs and eSIM-only devices being launched in the market, a new ecosystem for offering and pricing cellular services will be created. The rise of the Internet of Things (IoT), expanding 5G roll-out, and upcoming enhancements available with beyond 5G (B5G) networks will further add to the complexity of this ecosystem. In this paper, we outline the disruptive effects of eSIM on pricing and business models and discuss several challenges and opportunities that will arise with its adoption. In particular, the possibility of seamless switching between providers will result in higher competition and increased churn, giving rise to interesting pricing strategies. We describe one such strategy, personalized pricing, and illustrate its advantages over traditional approaches.

Unveiling the Insecurity of Operational Cellular Emergency Services (911): Vulnerabilities, Attacks, and Countermeasures

The cellular network offers a ubiquitous emergency call service with its pervasive coverage. In the United States, it can be consumed by dialing 911 for cellular users, and the emergency call is forwarded to the public safety answer point (PSAP), which handles emergency service requests. According to regulatory authority requirements [1,2,3] for cellular emergency services, anonymous user equipment (UE) is allowed to access them without a SIM (Subscriber Identity Module) card, a valid mobile subscription, or a roaming agreement with the visited cellular network. Such support of the cellular emergency services requires different operations from conventional cellular services, thereby increasing the attack surface of the cellular infrastructure.

Improved SRP algorithm and bidirectional heterogeneous LTE‐R authentication key

AbstractDue to the problems that International Mobile Subscriber Identity is not encrypted during transmission, key disclosure, and high authentication overhead in Evolved Packet System‐Authentication and Key Agreement, the next generation of high‐speed railway Long‐Term Evolution for Railway train ground authentication protocol, this paper describes the improved Secure Remote Password algorithm and two‐way heterogeneous Long‐Term Evolution for Railway authentication key agreement scheme. First, the improved Secure Remote Password algorithm is used to encrypt the message transmission between User Equipment and Mobility Management Entity, solving the problem of International Mobile Subscriber Identity being not encrypted during transmission. Then, a two‐way heterogeneous digital signature method of Public Key Infrastructure and Identity‐Based Cryptosystem is proposed to authenticate and negotiate with the Mobility Management Entity and Home Subscriber Server, which improves the security of the root key and can effectively prevent man in the middle, replay and other attacks. Finally, in the research results, the random oracle model is used to verify, and the results show that our method is superior to the comparison method in security and authentication cost, and can meet the Long‐Term Evolution for Railway communication requirements.

Analysis of Public Interest in Telkomsel Cards Using the Decision Tree Method

SIM card (Subscriber Identification Module) card is a physical electronic device that is the integrated circuit of the internet. Sim cards are used by the public as a place to store quotas for internet, phone calls and SMS. There are many types of SIM cards that are used by the public, such as Telkomsel cards, XL cards, Exis cards and Smartfren cards. There are some people who are interested and use Telkomsel cards, because the network is good. But there are some people who don't use Telkomsel cards, because the quota price is quite expensive. Therefore, the Penlus will make research about people's interest in Telkomsel cards. This study aims to determine the amount of public interest in the Telkomsel card. To conduct this research, the authors used 42 community data which would be classified using the decision tree method. The data used by the author was obtained by distributing a questionnaire to the public. After classifying using the decision tree method, the result is that the people who are interested in the Telkomsel card are 33 people who are interested in the Telkomsel card (for the representation results it is 78.5%) and the results obtained are that the people who are not interested in the Telkomsel card are 9 people (for its representation results of 21.4%). From the results of the study, many people are interested in Telkomsel cards, even though the internet, call and SMS quota prices are quite expensive.

Noise-resistant algorithm of speech signal segmentation in subscriber identification systems

Noise-resistant algorithm of speech signal segmentation in subscriber identification systems