scholarly journals Improved Pohlig - Hellman using Sieve of Eratosthenes for Three-Pass Protocol Security Enhancement

TEM Journal ◽  
2021 ◽  
pp. 38-44
Author(s):  
Robbi Rahim ◽  
Nik Adilah Hanin Zahri ◽  
Mohd Nazri Bin Mohd Warip
Keyword(s):  
Cryptographic Protocols ◽  
Key Exchange ◽  
Exchange Model ◽  
Direct Communication ◽  
Encrypted Data ◽  
Security Enhancement ◽  
Protocol Security

Password-based is widely used as an exchange model in many areas such as smartphones, computers and other devices in which the keys are directly distributed to the recipients. Therefore, the implementation of cryptographic protocols without key exchange remains an undesirable area. The three-pass protocol is an instrument that enables sender and receiver to send encrypted data without any of the keys being transmitted to recipients. Furthermore, this process eliminates key exchange between senders and recipients when there is three ways direct communication using their own key.

Quantum secure direct communication based on quantum homomorphic encryption

2021 ◽  
Vol 36 (37) ◽  
Author(s):  
Xi Huang ◽  
Shibin Zhang ◽  
Yan Chang ◽  
Fan Yang ◽  
Min Hou ◽  
...  
Keyword(s):  
Homomorphic Encryption ◽  
Quantum Secure Direct Communication ◽  
Quantum States ◽  
Secret Message ◽  
Direct Communication ◽  
Encrypted Data ◽  
Communication Efficiency ◽  
Utilization Ratio ◽  
Arbitrary Quantum ◽  
Qubit Efficiency

As one of the most important branches of quantum cryptography, quantum secure direct communication (QSDC) is used to transmit the secret message directly rather than distribute a random key. Quantum homomorphic encryption (QHE) enables arbitrary quantum transformation on encrypted data without decrypting the data. To date, the previously proposed QSDC schemes are mainly based on different quantum states. The research of the QSDC scheme based on QHE is still blank. In this paper, a QSDC scheme by taking advantage of the properties of QHE is proposed. The proposed protocol has applied QHE and decoy photons to prevent various types of attacks. The proposed scheme only utilizes the rotation operation to encode the secret message which is easy to implement with the current technologies. Moreover, the communication efficiency and the qubit-utilization ratio are analyzed in this paper, which shows that this protocol has good performance in the qubit-utilization ratio, and the qubit efficiency of the QSDC scheme has improved.

Security enhancement for a three-party encrypted key exchange protocol against undetectable on-line password guessing attacks

2008 ◽  
Vol 30 (1-2) ◽  
pp. 95-99 ◽  
Author(s):  
Hsing-Bai Chen ◽  
Tzung-Her Chen ◽  
Wei-Bin Lee ◽  
Chin-Chen Chang
Keyword(s):  
Key Exchange ◽  
Key Exchange Protocol ◽  
Security Enhancement ◽  
On Line

A Deeply Protected Hybrid Key Exchange Model in Wireless Mesh Networks

2011 ◽  
Vol 6 (5) ◽  
pp. 117-126
Author(s):  
Qian Wei ◽  
Jingsha He ◽  
Xing Zhang ◽  
Jinning Jia
Keyword(s):  
Wireless Mesh Networks ◽  
Mesh Networks ◽  
Key Exchange ◽  
Exchange Model ◽  
Wireless Mesh

scholarly journals Một giải pháp quản lý kết nối mật cho IPSec trên FPGA

2021 ◽  
Vol 1 (13) ◽  
pp. 3-11
Author(s):  
Phan Văn Kỷ ◽  
La Hữu Phúc
Keyword(s):  
Field Programmable Gate Array ◽  
Data Exchange ◽  
Internet Protocol ◽  
Key Exchange ◽  
Protocol Security ◽  
Secure Protocol ◽  
Field Programmable ◽  
Gate Array ◽  
Internet Protocol Security ◽  
Internet Key Exchange

Tóm tắt—IPSec (Internet Protocol Security) là bộ giao thức an toàn nhằm bảo vệlưu lượng dữ liệu qua mạng Internet. Mỗi kết nối mật trong mô hình triển khai IPSec có một bộ thuật toán, tham số bảo mật riêng. Để đảm bảo các kết nối mật hoạt động ổn định trong môi trường truyền tin với băng thông lớn, việc quản lý nhiều kết nối mật đồng thời trên thiết bị IPSec đóng vai trò vô cùng quan trọng. Do tính phức tạp của quá trình quản lý, thông thường vấn đề này được thực hiện bằng phần mềm trên hệđiều hành. Giải pháp này bị hạn chế do quá trình trao đổi dữ liệu giữavi mạch Field Programmable Gate Array (FPGA) và bộ vi xử lý. Trong bài viết này, nhóm tác giả đưa ra một giải pháp tổ chức, quản lý kết nối mật sau khi sử dụng giao thức Internet Key Exchange (IKE) để trao đổi khóa cho IPSec trên FPGA sử dụng ngôn ngữ mô tả phần cứng, nhằm đáp ứng yêu cầu tốc độ cao với nhiều kết nối.Abstract—IPSec (Internet Protocol Security) is a secure protocol aiming to protect data traffic via the Internet. There is a separate set of algorithms and security parameters in each secure connection in the IPSec deployment model. In order to ensure stable connections in high-bandwidth environments, managing multiple secure connections simultaneously on IPSec devices holds a significant role. Due to the complexity of the management process, this is commonly done by software on the operating system. This solution is restricted due to data exchange between field-programmable gate array (FPGA) and microprocessor. In this article, a solution was proposed to organize and manage a confidential connection after using Internet Key Exchange (IKE) to exchange keys for IPSec directly using hardware description language on FPGA, aiming to meet high-speed requirements with many connections.

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