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These are barebones apps that allow you to safeguard your documents, and that's it. You won't find a document shredder, a password generator or a password strength meter. Also, these encryption solutions, while workable, are less intuitive than their paid counterparts. The paid versions walk you through each step and provide you access to easy-to-read help files and tutorials.So, in case you're familiar with certificates and keys to encrypt documents, BitLocker may work nicely for you.

You have more flexibility using this application than with other programs also, thanks to the many additional features, like the file shredder and digital keyboard. Not only can you encrypt files and upload them into a cloud service, like Dropbox or Google Drive, you also have the option of using Folder Lock's own cloud hosting service; however, you need to subscribe to this service, that is an extra cost.Secure IT proved to be a top contender in file encryption also.

An installation wizard makes installation easy, and you get suggestions that will help you learn the program in small bites whenever you begin the app. Secure IT also compresses files better than many of its rivals, so that you can save space when you lock your files away.Kruptos 2 Guru kicks you off with a help guide instantly after installation, so that you can quickly learn how to utilize it.

It's a subscription, however, which means you have to renew your license each year with this software.SafeHouse Personal Edition makes encrypting files a cinch you simply drag and drop your files into a volume in which they're instantly encrypted. It works like a hard disk, but almost. You have to remember to shut the volume, however, because otherwise your files remain open and vulnerable to anyone who uses your computer.The right encryption applications for you depends on what you need.

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Cybersecurity researchers at the Georgia Institute of Technology have helped close a security vulnerability that could have allowed hackers to steal encryption keys by a popular security here package by briefly listening in on unintended"side channel" signals from smartphones.

The attack, that her response was reported to applications developers before it had been advertised, took advantage of programming that has been, ironically, designed to provide better security. The attack used intercepted electromagnetic signals from the phones that could have been analyzed using a small mobile device costing less than a thousand bucks. Unlike earlier intercept attempts that required analyzing many logins, the"One & Done" assault was completed by eavesdropping on just one decryption cycle. .

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"This is something which can be done at an airport to steal people's information without arousing suspicion and makes that the so-called'coffee shop strike' much more realistic," said Milos Prvulovic, associate chair of Georgia Tech's School of Computer Science. "The designers of encryption applications now have another issue that they need to take into account because continuous snooping over long periods of time would no longer be required to steal this information." .

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The side channel attack is thought to be the first to regain the key exponent of an encryption key in a modern version of OpenSSL without relying on the cache organization and/or timing. OpenSSL is a popular encryption program used for secure interactions on websites and for signature authentication. The attack showed that a single recording of a cryptography key hint was sufficient to violate 2048 pieces of a private RSA key. .

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Results of the research, which was supported in part by the National Science Foundation, the Defense Advanced Research Projects Agency (DARPA), and the Air Force Research Laboratory (AFRL) will be presented in the 27th USENIX Security Symposium August 16th in Baltimore.

After effectively attacking the phones and an embedded system board -- that all used ARM processors -- the researchers proposed a fix for the vulnerability, which was adopted in versions of the software made available in May.

Side channel attacks extract sensitive information from signals made by electronic action within computing apparatus during normal operation. The signals include electromagnetic emanations made by current flows within the apparatus computational and power-delivery circuitry, variation in electricity consumption, and also sound, fever and chassis potential variation. These emanations are very different from communications signals the apparatus are designed to create. .

In their demonstration, Prvulovic and collaborator Alenka Zajic listened in on two different Android phones using probes located near, but not touching the apparatus. In an actual attack, signals can be received from phones or other mobile devices by antennas located beneath tables or hidden in nearby furniture.

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The"One & Done" attack analyzed signals in a relatively narrow (40 MHz wide) band around the phones' processor clock frequencies, that can be close to 1 GHz (1,000 MHz). The researchers took advantage of a uniformity in programming that had been designed to conquer sooner vulnerabilities involving variations in how the programs function. .

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