Fast, Small, and Area-Time Efficient Architectures for Key-Exchange on Curve25519

Bisheh-Niasar, Mojtaba; Khatib, Rami El; Azarderakhsh, Reza; Kermani, Mehran Mozaffari

doi:10.1109/arith48897.2020.00019

Cited by 20 publications

(4 citation statements)

References 18 publications

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“…Curve25519 is a secure elliptic curve cryptography algorithm used for Diffie-Hellman key exchange. The Signal Protocol utilizes the Curve25519 curve to perform key exchange, ensuring the security and efficiency of the key negotiation process [10].…”

Section: Curve25519mentioning

confidence: 99%

Design of an Encryption Chat Application Based on ChaCha20-Poly1305

Feng

2024

HSET

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This study introduces the meticulous design and development of a chat application fortified with the robust ChaCha20-Poly1305 encryption algorithm. The selected cryptographic algorithm is renowned for its efficacy in ensuring top-notch security. In our application, ChaCha20 serves as the backbone for stream encryption, ensuring that the message content remains confidential and impenetrable to eavesdroppers. Simultaneously, Poly1305, an esteemed message authentication code, guarantees the integrity and authenticity of each chat message. It ensures that the messages sent are genuine and have not been tampered with during transit. Together, the integration of these two components constructs a fortified wall against potential security breaches, safeguarding user communications. This not only instills confidence in users regarding the privacy of their conversations but also sets a benchmark in chat application security. The overarching aim is to offer an impeccable blend of user-friendly experience and top-tier security, revolutionizing the way secure communications are perceived and utilized.

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Section: Curve25519mentioning

confidence: 99%

Design of an Encryption Chat Application Based on ChaCha20-Poly1305

Feng

2024

HSET

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“…An elliptic curve key with a length of 512 bits is equal to a standard asymmetric key of 15,360 bits. The smaller key size also increases the speed of the key exchange, as per Niasar (2020). The use of Curve25519 in the Signal protocol contributes to the overall security and performance of the protocol, by providing a fast and secure key agreement mechanism that can be used to establish shared secrets between devices.…”

Section: Curve25519mentioning

confidence: 99%

Review of End-to-End Encryption for Social Media

Bhuse¹

2023

iccws

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People have valid concerns about their privacy and the use of their personal information by corporations. People do not necessarily trust social media companies to protect their right to privacy. Social media companies are under pressure to provide greater levels of security and privacy to their users. The current gold standard of security protocols for messaging system is the Signal Protocol. The Signal protocol is an open-source end-to-end encryption model. It uses AES-256, HMAC-SHA256 and Curve25519 as its cryptographic primitives. This protocol is currently considered cryptographically sound and provides excellent information security. However, many social media companies are still using less secure protocols often underpinned by less secure primitives. This paper discusses in detail the various cryptographic primitives used in social media apps like WhatsApp, Twitter, Facebook, Snapchat and Instagram.

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“…For this purpose, the public keys must be exchanged within the initial alert message (SIP INVITE). This process is also called "X25519 key exchange" [50]. The signature process based on this curve is called Ed25519.…”

Section: Communicationmentioning

confidence: 99%

Automatic Information Exchange in the Early Rescue Chain Using the International Standard Accident Number (ISAN)

et al. 2021

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Thus far, emergency calls are answered by human operators who interview the calling person in order to obtain all relevant information. In the near future—based on the Internet of (Medical) Things (IoT, IoMT)—accidents, emergencies, or adverse health events will be reported automatically by smart homes, smart vehicles, or smart wearables, without any human in the loop. Several parties are involved in this communication: the alerting system, the rescue service (responding system), and the emergency department in the hospital (curing system). In many countries, these parties use isolated information and communication technology (ICT) systems. Previously, the International Standard Accident Number (ISAN) has been proposed to securely link the data in these systems. In this work, we propose an ISAN-based communication platform that allows semantically interoperable information exchange. Our aims are threefold: (i) to enable data exchange between the isolated systems, (ii) to avoid data misinterpretation, and (iii) to integrate additional data sources. The suggested platform is composed of an alerting, responding, and curing system manager, a workflow manager, and a communication manager. First, the ICT systems of all parties in the early rescue chain register with their according system manager, which tracks the keep-alive. In case of emergency, the alerting system sends an ISAN to the platform. The responsible rescue services and hospitals are determined and interconnected for platform-based communication. Next to the conceptual design of the platform, we evaluate a proof-of-concept implementation according to (1) the registration, (2) channel establishment, (3) data encryption, (4) event alert, and (5) information exchange. Our concept meets the requirements for scalability, error handling, and information security. In the future, it will be used to implement a virtual accident registry.

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Fast, Small, and Area-Time Efficient Architectures for Key-Exchange on Curve25519

Cited by 20 publications

References 18 publications

Design of an Encryption Chat Application Based on ChaCha20-Poly1305

Design of an Encryption Chat Application Based on ChaCha20-Poly1305

Review of End-to-End Encryption for Social Media

Automatic Information Exchange in the Early Rescue Chain Using the International Standard Accident Number (ISAN)

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