Design and Evaluation of Proof of Work Based Anti-Spam Solution

Gavrilovic, Nadja; Ciric, Vladimir

doi:10.1109/zinc50678.2020.9161440

Cited by 6 publications

(4 citation statements)

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“…A direct consequence of reducing the number of hash function executions per connection is an increase in the duration of an individual client/server connection. We can conclude that a client with the intention of abusing the email server is limited to a constant number of sent emails per second, which is slowing down his spam attacks [21].…”

Section: The Client's Perspectivementioning

confidence: 95%

“…Evaluation of client's work for different weight values, is discussed in [21]. The results obtained in [21] are given in Table 1.…”

Section: The Client's Perspectivementioning

confidence: 99%

“…Evaluation of client's work for different weight values, is discussed in [21]. The results obtained in [21] are given in Table 1. Furthermore, this paper gives the evaluation of client's behaviour and the PoW impact on the amount of spam traffic.…”

Section: The Client's Perspectivementioning

confidence: 99%

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Autoscalabile ditributed anti-spam SMTP system based on kubernetes

Gavrilovic

Ciric

2021

FACTA U EE

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Due to the increasing amount of spam email traffic, email users are in increasing danger, while email server resources are becoming overloaded. Therefore, it is necessary to protect email users, but also to prevent SMTP system overload during spam attacks. The aim of this paper is to design and implement an autoscalable distributed anti-spam SMTP system based on a Proof of work concept. The proposed solution extends SMTP protocol in order to enable the evaluation of the client?s credibility using the Proof of work algorithm. In order to prevent resource overload during spam attacks, the anti-spam SMTP system is implemented in a distributed environment, as a group of multiple anti-spam SMTP server instances. Kubernetes architecture is used for system distribution, configured with the possibility of autoscaling the number of antispam SMTP server instances depending on the system load. The implemented system is evaluated during a distributed spam attempt, simulated by a custom-made traffic generator tool. Various performance tests are given: (1) The proposed system?s impact on client?s behaviour and the overall amount of spam messages, (2) The performance of the undistributed anti-spam SMTP server during spam attack, in terms of resource load analysis (3) Autoscaling demonstration and evaluation of proposed distributed system?s performance during a spam attack. It is shown that the proposed solution has the possibility of reducing the amount of spam traffic, while processing tens of thousands of simultaneous SMTP client requests in a distributed environment.

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Section: The Client's Perspectivementioning

confidence: 95%

“…Evaluation of client's work for different weight values, is discussed in [21]. The results obtained in [21] are given in Table 1.…”

Section: The Client's Perspectivementioning

confidence: 99%

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Autoscalabile ditributed anti-spam SMTP system based on kubernetes

Gavrilovic

Ciric

2021

FACTA U EE

Self Cite

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“…SMTP plays a pivotal role on the Internet by defining both the MTA client and MTA server. Its primary purpose is to establish the guidelines for the transfer of data between the MTA client and MTA server through the exchange of commands and responses [98], [99]. In essence, SMTP provides the framework for the seamless transfer of emails across the Internet.…”

Section: Smtpmentioning

confidence: 99%

Performance, privacy, and security issues of TCP/IP at the application layer: A comprehensive survey

Timothy Murkomen

2024

GSC Adv. Res. Rev.

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TCP/IP is the backbone of modern network communication, connecting devices across the world. TCP/IP at its core is a suite of protocols that enables the transmission of data between computers, facilitating the foundation of the interconnected global network. At the Application Layer of TCP/IP is where the interaction between software applications and the network occurs. The user-centric protocols such as HTTP, SMTP, FTP, POP3, IMAP and DNS facilitate various tasks at this layer such as web browsing, email communication, and file transfer. This comprehensive survey conducted an exploration of the performance, security and privacy issues at the application layer of the TCP/IP. It initiated by providing a background of TCP/IP model, it’s architecture and the core characteristics, with major focus on the application layer. This paper aimed to discuss the state-of-the-art of performance, privacy and security concerns in TCP/IP application layer. It also proposed future research areas to equip researchers, practitioners, policy makers and the decision makers with tangible knowledge, offering guidance in navigating the performance, privacy and security concerns in TCP/IP Application Layer. It aimed to discuss the current performance, privacy and security research gaps at the Application Layer of the TCP/IP Model. The findings of this research sheds light on the performance, privacy and security issues while suggesting the countermeasures to strengthen and optimize the overall performance, security and privacy of TCP/IP model at the application layer. The paper finally suggests future directions and research areas at the TCP/IP application layer.

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