Encryption & Anonymity in Digital Communications
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
How to Download Mega Files for Free How to Download Mega Files for Free
how to download mega files for free How to download mega files for free. MegaDownloader is a unique online tool that allows users to download files directly in their devices from Mega.nz. As we all know that Mega is quite popular for storing heavy files on its cloud storage space but unfortunately it’s quite hard to download files directly in any device due to certain limitations. You can avoid all this lengthy process by simply using our MegaDownloader that will automatically grab the relevant files for you. Steps to use Mega Downloader. It won’t take more than a minute to download any customized file using MegaDownloader, All you need to do is just follow these simple and easy steps in a proper sequence as described below. Open the Mega URL and go to Mega.nz from your web browser. Open the file location in the Mega Dashboard and then Copy the link to the clipboard. Now Paste the download link in our Megadownloader by D4down and wait for few seconds of the file download. After some time, the automated download process will be initiated in your browser. You’re Done and Downloaded file in your Folder. Why choose Downloader for Mega? These are the following basic reasons that you should also consider wisely while choosing any Downloader for Mega. It offers a Superfast download speed that will save a lot of your precious time. You can avoid all the restrictions such as download limit using our online MegaDownloader. It doesn’t require any account access while downloading directly from Mega requires an active Mega account otherwise you won’t be able to download it. -
Secure Data Sharing in the Cloud
Eivind Nordal Gran Secure data sharing in the cloud Eivind Nordal Gran Eivind Nordal Master’s thesis in Communication Technology Supervisor: Colin Alexander Boyd, Gareth Thomas Davies & Clementine Gritti June 2019 Master’s thesis Master’s Secure data sharing in the cloud data Secure NTNU Engineering Communication Technology Communication Department of Information Security and Department of Information Faculty of Information Technology and Electrical Technology of Information Faculty Norwegian University of Science and Technology of Science University Norwegian Eivind Nordal Gran Secure data sharing in the cloud Master’s thesis in Communication Technology Supervisor: Colin Alexander Boyd, Gareth Thomas Davies & Clementine Gritti June 2019 Norwegian University of Science and Technology Faculty of Information Technology and Electrical Engineering Department of Information Security and Communication Technology Problem description: Data sharing using cloud platforms has become increasingly more popular over the last few years. With the increase in use comes a heightened demand for security and privacy. This project will conduct a thorough study of a key transport proto- col developed at NTNU, which targets strong security as its preeminent property, including a form of forward secrecy. More specifically, it will investigate how this escalation in security level affects the performance and usability of the protocol. How will the new protocol designed with security as its primary concern compare against other already established schemes when it comes to efficiency and practicality? Abstract Cloud sharing security is an important topic in today’s society. The majority of the most common cloud sharing solutions require that the user trust the Cloud Service Provider (CSP) to protect and conceal uploaded data. -
Is Cloud Storage Secure? What Do the Providers Offer Concerning Security
Step 3 Step 4 Check Your Provider's Stance on Privacy Audit Your Files and Remove or Encrypt and Encryption Sensitive Data Is Cloud Storage If there's anything you'd hate to lose, or any- Secure? Next, do a little digging to see how your thing you're worried an overzealous algo- cloud storage service handles privacy, and rithm may close your account over, it's time how committed they are to protecting your to either remove it from the cloud and store data. We touched on this a while ago for it locally, or encrypt it. some of the most popular services, but not Encrypting those files and archives with a all of them. password may make it more of a hassle to Check what access your provider gives itself access on other devices, especially on your to your data. Review the security they claim smartphone or tablet, but it's a huge security to offer as well. Some companies encrypt boost, especially if you use your cloud ser- your data at rest on their servers, and note vice for things like financial documents, that even they have no idea what you're stor- contracts, or...anything else. ing with them. Others reserve the right to access your data Step 5 whenever they choose, and use vague, hand- Consider Diversifying with Privacy- and wavy terms like "bank level security" when Security-Conscious Services they talk about encryption. Those are all bad signs, and generally mean Spread out your critical data to different ser- that they either don't take security seriously, vices so if one of them gets hacked, loses or don't think you're smart enough to. -
Cloud Storage Augmentation with Multi User Repudiation and Data De-Duplication 1J.K
J.K. Periasamy et al., International Journal of Advanced Engineering Technology E-ISSN 0976-3945 Research Paper CLOUD STORAGE AUGMENTATION WITH MULTI USER REPUDIATION AND DATA DE-DUPLICATION 1J.K. Periasamy, 2B. Latha Address for Correspondence 1Research Scholar, Information and Communication Engineering, Anna University, Chennai & Computer Science and Engineering, Sri Sairam Engineering College, Chennai, Tamilnadu, India. 2Professor and Head, Computer Science and Engineering, Sri Sairam Engineering College, Chennai,Tamilnadu, India. ABSTRACT One of the major applications of Cloud computing is “Cloud Storage” where data is stored in virtual cloud servers provided by numerous third parties. De-duplication is a technique established in cloud storage for eliminating duplicate copies of repeated data. The storage space is reduced and the capacity of bandwidth is increased in the server using Data De- duplication. It is related to intelligent data compression and single-instance data storage.To take the complexity out of managing the Information Technology infrastructure, the storage outsourcing has become the popular option. The latest techniques to solve the complications of protective and efficient public auditing for dynamic and shared data are still not secure against the collusion that is, the illegal agreement of the cloud storage server and the multiple user repudiation in workable cloud storage. Hence, to prevent the collusion attack in the existing system and to provide an effective global auditing and data integrity, the group user repudiation is performed based on ordered sequence of values commit and group signature is generated with secure hash algorithm. The group user data is encrypted using block ciphers and bilinear transformation. This work also introduces a new approach in which each user holds an independent master key for encryption using convergent keys technique and out sourcing them to the cloud. -
Online Backup & Sync
Online Backup & Sync Access all your Tresorit folders and files securely in your computer’s file browser, regardless of whether you synced it or not. Store & backup your files securely in the cloud Tresorit's end-to-end encrypted online storage solution extends the space on your local drive and protects your files in the cloud. Only you and those who you share with can access the content. • Extend your hard drive: Integrate Tresorit Drive to your local file manager to upload and access files without storing them locally. • Selective sync: Define which subfolders you want to keep synced on your device. Keep control how much space you use on your local drive. • Version recovery: Store and roll back to any previous version of your files. “Tresorit integrates very well into the system. You don't really have to do much about it. It simply works.” - Christian Zeyer, Co-Managing Director at Swisscleantech Upload your existing folder Upload & Sync Recover older versions of structure automatically files Keep the way you organize your Tresorit updates your files in Keep track of changes by your files when you upload them to the real-time and automatically adds collaborators, solve version cloud. No need to change what is any edits you make to the cloud. conflicts and use unlimited file already on your computer. Backup You can access the latest version versioning to roll back to any & Sync only takes a few clicks. of your data from any device. previous version. “After a partner's Dropbox account “Documents we place into Tresorit “Our most sensitive data are the ideas was compromised, switching to appear immediately on the client’s of our clients, so solving version Tresorit couldn't have been simpler laptop. -
Snapchat Dropbox
LOS ANGELES | SAN FRANCISCO | NEW YORK | BOSTON | SEATTLE | MINNEAPOLIS | MILWAUKEE July 15, 2013 Michael Pachter Steve Koenig (213) 688-4474 (415) 274-6801 [email protected] [email protected] PRISM … Progress Report for Internet and Social Media In This Issue: Snapchat, Dropbox Snapchat Developer of the popular photo-messaging app, founded in 2011. Application allows photos to be sent between users. Photos can only be viewed for a few seconds, then self-delete. App has experienced rapid adoption, with 200 million pictures sent per day, up from 150 million in April of this year. Valuation has risen significantly, from approximately $70 million in February 2013 to $800 million today. Founders now in legal battle with a schoolmate claiming to be a third founder. Popularity may represent a cultural shift to less-permanent, more anonymous web services. Dropbox Announced at developer conference its intention to create a data platform for developers. Introduced new tools for deeper application integration. User count rises to 175 million from 100 million in November of last year. About Wedbush Securities Private Shares Group The Private Shares Group of Wedbush Securities is a leader in providing research and trading to the rapidly growing industry of privately traded securities, with an emphasis on companies in the social media space. We assist companies in raising growth capital through traditional private placements and provide liquidity options for existing and former employees through tailored selling programs. We also work with venture capital, private equity and hedge fund investors to help them adjust their holdings in some of the most dynamic companies. -
On the Security of Cloud Storage Services
FRAUNHOFER INSTITUTE FOR SECURE INFORMATION TECHNOLOGY ON THE SECURITY OF CLOUD Sharing of data was a problem for CloudMe, Dropbox, Team- Summary Individuals or companies considering to use cloud STORAGE SERVICES Drive and Wuala. Problems occur if fi les are shared with non- storage services are advised to check whether a cloud provider MANAGEMENT SUMMARY subscribers by a long, unpredictable URL. CloudMe does not meets these security requirements. obfuscate this URL adequately. Dropbox gives an unclear de- scription wrt to sharing details, TeamDrive is weak when disin- In addition, it is worthwhile to consider using more than one viting a group member and Wuala enables information gathe- service to reduce the impacts of service downtime. Further, ring by including the user name in public URLs. CloudMe does calculation of the time to recover all data from the cloud is re- not prevent search engines from accessing the workspace. commended. Depending on the individual amount of data, this may take several days. Having a plan for a provider Deduplication was a problem for Mozy and Wuala, because change in the future reduces the dependancy on a particular in some cases it is possible to ask the cloud storage provider provider (provider lock-in). This will be relevant, for example, if whether a fi le is already stored or not. the chosen provider is getting too expensive or is not longer compliant with governmental rules. As a major result, the stu- Data confi dentiality can be improved by users by encrypting dy shows that most of the analyzed cloud storage providers their data locally before uploading it to the cloud. -
The Rise of China's Silicon Dragon
PwC’s Experience Centre May 2016 The rise of China’s silicon dragon China’s internet players are shifting the centre of gravity in the global digital economy and forcing multinationals to rethink fundamental assumptions about the sources of innovation-led growth Executive Summary When it comes to China the China’s leading digital players now that is characterised by intense numbers are usually big and digital rival their Western counterparts in competition and demanding is no exception. Alibaba holds the terms of overall scale, value and customer expectations. However, world record for the largest opening innovation capability. And while with China as a leading digital day IPO, and Tencent’s WeChat impact outside of the domestic innovator, we are seeing the achieved more mobile transactions market has been limited, we expect emergence of a “China for the over Chinese New Year than PayPal this to change. Internet players World” strategy. Here we see MNCs did in all of 2015. But it’s not just will increasingly become more ideate, test and scale leading- the internet giants that are breaking established and visible on the global edge digital solutions within China records: PwC’s analysis shows that landscape through direct expansion that can then be exported to other Venture Capital (VC) investment into Emerging Market eCommerce, international markets. To do this value in China-based internet social and mobile services; cross- effectively MNCs must confront a businesses was worth USD 20bn border M&A of high-tech firms; range of challenges that include: in 2015, exceeding VC investment exporting disruptive business talent acquisition and retention; in United States-based internet models; and attracting international establishing and maintaining business (USD 16bn) for the very digital talent. -
Save It to the Cloud
Save It To The Cloud Virtual Program – December 2020 What Is The Cloud? To put it simply, there is no cloud. There is just some other computer. The cloud part refers to storing your files somewhere other than your computer’s hard drive and accessing them through the Internet. Cloud storage services are free for a set number of gigabytes, but once you go over that amount, the fees can be costly. Pros & Cons There are many advantages to using cloud storage, including: Usability: able to be used on multiple devices and computers Bandwidth: instead of sending attachments through email, provide a link to the file to avoid size limits Accessibility: provides access to your files anywhere you have a device connected to the Internet Disaster Recovery: provides a copy of your files in case the worst should happen to your device Storage Savings: allows you to move files off your device, saving valuable storage space Of course, there are disadvantages to using cloud storage: Not User Friendly: for those new to the chosen service, it can be a learning curve Limited Accessibility: without an Internet connection, you are stuck Data Security: nothing is ever truly secure on the Internet Software: have to set up the service on all applicable devices 1 The Products We are going to be discussing four cloud storage services today: Google Drive Microsoft OneDrive Apple iCloud Dropbox Here is a quick breakdown of the four services and their features. Google Microsoft Apple Dropbox Drive OneDrive iCloud Apple device Emphasis Collaboration Office apps Compatibility users Free 15 GB 5GB 5 GB 2 GB Storage Online Yes Yes Yes No Editing File Yes Yes Yes Yes Versioning Windows Yes Yes Yes Yes App iOS Yes Yes Yes Yes App Android Yes Yes No Yes App Picked your chosen cloud storage service? Let’s find out how to sign up for it, install it, and use it! 2 Google Drive Step 1: Sign Up To sign up for Google Drive, you must have an account. -
5 Reasons to Use Dropbox Business Over Onedrive for Business
5 Reasons to use Dropbox Business over OneDrive for Business To become successful, teams need fast and reliable tools that integrate with their existing environments. When it comes to file sync and share, leading teams can’t afford anything other than the best solution out there. Here are five reasons over 200,000 organizations choose Dropbox Business over OneDrive for Business. 1. Dropbox is one place for all content 4. IDC rates Dropbox sync performance • Dropbox is your single destination for every file. Team as “best in class” Folders let admins organize all content based on team • IDC named Dropbox “best-in-class” for sync structures with appropriate sharing controls. performance in an independent (noncommissioned) • OneDrive requires SharePoint integration, depending report. IDC tested Dropbox sync performance on file size, external vs internal sharing, personal vs against peers including OneDrive, Box, team ownership, and document lifecycle. and Google Drive, and found that Dropbox outperformed competitors across the board.1 2. Access anything anywhere 5. Higher adoption means stronger security • Dropbox Smart Sync lets you access all files from the desktop without using local storage space. Use it with • You can’t secure company data if your employees Team Folders to access everything, all with the right don’t use the approved cloud storage platform. permissions, on any platform. OneDrive for Business deployments are often unsuccessful and only 1 in 4 accounts are being used.2 • OneDrive On-Demand Sync only supports Windows Users instead use more familiar solutions. Dropbox 10. If SharePoint is needed, it can create separate Business includes Microsoft native previews and sites and access levels, and duplicate files. -
Megaupload Indictment.Pdf
GENERAL ALLEGATIONS At all times relevant to this Indictment: 1. KIM DOTCOM, MEGAUPLOAD LIMITED, VESTOR LIMITED, FINN BATATO, JULIUS BENCKO, SVEN ECHTERNACH, MATHIAS ORTMANN, ANDRUS NOMM, and BRAM VAN DER KOLK, the defendants, and others known and unknown to the Grand Jury, were members of the “Mega Conspiracy,” a worldwide criminal organization whose members engaged in criminal copyright infringement and money laundering on a massive scale with estimated harm to copyright holders well in excess of $500,000,000 and reported income in excess of $175,000,000. 2. Megaupload.com is a commercial website and service operated by the Mega Conspiracy that reproduces and distributes copies of popular copyrighted content over the Internet without authorization. Since at least September 2005, Megaupload.com has been used by the defendants and other members and associates of the Mega Conspiracy to willfully reproduce and distribute many millions of infringing copies of copyrighted works, including motion pictures, television programs, musical recordings, electronic books, images, video games, and other computer software. Over the more than five years of its existence, the Mega Conspiracy has aggressively expanded its operations into a large number of related Internet businesses, which are connected directly to, or at least financially dependent upon, the criminal conduct associated with Megaupload.com. 3. Megaupload.com was at one point in its history estimated to be the 13th most frequently visited website on the entire Internet. The site claims to have had more than one billion visitors in its history, more than 180,000,000 registered users to date, an average of 2 50 million daily visits, and to account for approximately four percent of the total traffic on the Internet. -
Secure Dropbox
Secure Dropbox by Gu Juntao, B.Sc. Dissertation Presented to the University of Dublin, Trinity College in fulfillment of the requirements for the Degree of Master of Science in Computer Science University of Dublin, Trinity College August 2013 Declaration I, the undersigned, declare that this work has not previously been submitted as an exercise for a degree at this, or any other University, and that unless otherwise stated, is my own work. Gu Juntao August 28, 2013 Permission to Lend and/or Copy I, the undersigned, agree that Trinity College Library may lend or copy this thesis upon request. Gu Juntao August 28, 2013 Acknowledgments I would like to show my greatest appreciation to my supervisor, Dr. Hitesh Tewari, for his suggestions and expertise throughout the project. Also, I would like to thank my parents, Mr. Peiqi Gu and Mrs. Xuelan Yang, for their unwavering love and encouragement. Finally, I would like to thank my best friend and love, Zhong Miao, for all of her support. Gu Juntao University of Dublin, Trinity College August 2013 iv Secure Dropbox Gu Juntao, M.Sc. University of Dublin, Trinity College, 2013 Supervisor: Tewari Hitesh Recently there have been increasing requirements about utilizing cloud technology for data maintaining and management especially when reliable, stable data storage and remote data access required. Since the cloud storage service is usually designed to be available to users over the Internet, it essentially facilitates the data sharing as well. However, security concerns are growing as the most commonly cited reason why users, particularly those enterprise users who are information confidentiality critical, are not interested in SaaS, of which cloud storage services like Dropbox or Google Drive are typical instances.