Virtual Private Networks: Building Secure Data Tunnels Through the Internet

EDPACS ◽  
1998 ◽  
Vol 26 (1) ◽  
pp. 1-6
Author(s):  
Laura Rademacher ◽  
Bob Tunstall
Keyword(s):  
The Internet ◽  
Virtual Private Networks ◽  
Secure Data

STEGANOGRAFI DENGAN MENGGUNAKAN METODE LSB DAN ALGORITMA HILL CIPHER

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Sherly Gina Supratman
Keyword(s):  
Digital Images ◽  
Text Messages ◽  
The Internet ◽  
Digital Imagery ◽  
Least Significant Bit ◽  
Hill Cipher ◽  
Secure Data ◽  
Audio Video ◽  
The Hill

AbstrakJaringan Komunikasi seperti Internet� merupakan jaringan yang tidak aman untuk mentransmisi data, seperti teks, audio,video dan citra digital. Salah satu cara untuk pengamanan data dapat dilakukan dengan menggunakan proses kriptografi dan �steganografi. Penggunaan ini dengan tujuan untuk merahasiakan pesan yang dikirim dan sekaligus menghindarkan pesan tersebut dari kecurigaan pihak lain yang tidak berkepentingan.Pesan yang digunakan dalam makalah ini adalah berupa text dengan menyisipkannya pada gambar. Pada proses kriptografi, pesan yang berupa text akan dienkrip dengan algoritma Hill Chiper, dan kemudian pesan yang telah dienkrip akan dilakukan proses steganografi pada citra digital� 8 bit dengan skala 0 � 255, dengan metode Least Significant Bit ( LSB ).�Kata kunci: Kriptografi, Hill Chiper, Steganografi, Least Significant Bit�AbstractCommunication Networks such as the Internet are unsafe networks for transmitting data, such as text, audio, video and digital imagery. One way to secure data can be done by using cryptography and steganography process. This use is for the purpose of concealing messages being transmitted and avoiding such messages from the suspicion by others who are not interested.The message used in this paper is text by inserting it in the image. In the cryptographic process, text messages will be encrypted with the Hill Chiper algorithm, and then the encrypted message will be steganographed on 8-bit digital images on a scale of 0-255, using the Least Significant Bit (LSB) method.�Keywords: Cryptography, Hill Chiper, Steganography, Least Significant Bit

Virtual Private Networks: Turning the Internet into Your Private Network

EDPACS ◽  
1999 ◽  
Vol 27 (2) ◽  
pp. 16-16 ◽  
Author(s):  
Charlie Scott ◽  
Paul Wolfe ◽  
Mike Erwin
Keyword(s):  
The Internet ◽  
Virtual Private Networks ◽  
Private Network

Secure Data Transfer Using Image Steganography

2021 ◽  
Vol 9 (VIII) ◽  
pp. 175-180
Author(s):  
Nisha Manral
Keyword(s):  
Data Transfer ◽  
Digital Images ◽  
Image Steganography ◽  
Secret Message ◽  
The Internet ◽  
Secret Information ◽  
File Formats ◽  
Secure Data ◽  
Other Information ◽  
Weak Points

Steganography is the art of hiding the fact that communication is taking place, by hiding information in other information. Many different carrier file formats can be used, but digital images are the most popular because of their frequency on the Internet. For hiding secret information in images, there exists a large variety of steganographic techniques some are more complex than others and all of them have respective strong and weak points. Different applications have different requirements of the steganography technique used. For example, some applications may require absolute invisibility of the secret information, while others require a larger secret message to be hidden. This paper intends to give an overview of image steganography, its uses and techniques. It also attempts to identify the requirements of a good steganographic algorithm and briefly reflects on which steganographic techniques are more suitable for which applications.

Virtual private networks: leveraging the Internet

Computer ◽  
1997 ◽  
Vol 30 (11) ◽  
pp. 18-20 ◽  
Author(s):  
S. Ortiz
Keyword(s):  
The Internet ◽  
Virtual Private Networks

scholarly journals PERBANDINGAN KINERJA IP SEC DAN SSL

Telematika ◽  
2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Dessyanto Boedi P
Keyword(s):  
The Internet ◽  
Data Communications ◽  
Secure Socket Layer ◽  
Advantages And Disadvantages ◽  
Secure Data ◽  
And Performance

Ipsec (IP Security) and SSL (Secure Socket Layer) is the most widely used techniques to secure data communications over the Internet. Both of these techniques has advantages and disadvantages of each. The purpose of this study is to present an analysis of the two techniques above in terms of security and performance.

scholarly journals An efficient and secure data auditing scheme based on fog-to-cloud computing for Internet of things scenarios

2020 ◽  
Vol 16 (5) ◽  
pp. 155014772091662
Author(s):  
Jun-Feng Tian ◽  
Hao-Ning Wang
Keyword(s):  
Cloud Computing ◽  
Internet Of Things ◽  
Fog Computing ◽  
The Internet ◽  
Identity Information ◽  
Private Key ◽  
Secure Data ◽  
Computing Center ◽  
Data Auditing ◽  
The Internet Of Things

With the widespread use of fog-to-cloud computing–based Internet of things devices, how to ensure the integrity of the data uploaded to the cloud has become one of the most important security issues. This article proposes an efficient and secure data auditing scheme based on fog-to-cloud computing for Internet of things scenarios, which can better meet performance and security requirements. The proposed scheme realizes data sharing under the condition of protecting privacy by encrypting sensitive information. Using the private key separation method, the private key is divided into two parts using identity information generation and random selection which are, respectively, held by the user and the fog center. Then, using the two-time signature method, the Internet of things and fog computing center use two parts of the private key to generate the original signature and final signature in two separate times. Since the fog computing center only has a part of the private key generated using the identity information, the security of the system will not be damaged due to the leakage of part of the private key held by the fog center, and the fog center significantly participates in the signature generation process, which significantly reduces the computation and communication overhead of the Internet of things device. Security analysis and performance evaluation show that the proposed scheme is safe and efficient.

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