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These are barebones apps that allow you to protect your files, 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 aid files and tutorials.So, in case you're comfortable with certificates and keys to encrypt files, BitLocker can work nicely for you.

You have more flexibility with this application than with other programs too, thanks to the many added features, such as the document shredder and digital keyboard. Not only can you encrypt files and upload them to a cloud service, like Dropbox or Google Drive, you also have the option of using Folder Lock's own cloud support nevertheless, you have to subscribe to this service, that is an extra cost.Secure IT proved to be a leading contender in document encryption also.

An installation wizard makes setup easy, and you receive tips that will help you learn the program in small bites each time you begin the app. Secure IT also compresses files better than many of its rivals, so that you can conserve space when you lock your files away.Kruptos 2 Pro kicks you off using a help guide immediately after installation, so that you can quickly learn how to use it.

It's a subscription, however, so you have to renew your license annually with this software.SafeHouse Personal Edition makes encrypting files a breeze you just drag and drop your files into a volume where they're instantly encrypted. It functions just like a hard disk, but almost. You have to remember to shut the volume, though, because your documents remain open and vulnerable to anyone who uses your computer.The proper encryption software 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 which could have allowed hackers to steal encryption keys from a favorite security package by temporarily listening in on unintended"side channel" signals from smartphones.

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

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

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The side channel attack is thought to be the first to retrieve the secret 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 sites and for signature authentication. The attack showed a single recording of a cryptography key hint was sufficient to break 2048 pieces of a private RSA key. .

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Results of this study, 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 used ARM processors -- the researchers suggested a fix for the vulnerability, which had been embraced in versions of this applications made available in May.

Side channel attacks extract sensitive information from signals made by electronic action within computing devices during normal operation. The signals include electromagnetic emanations made by current flows within the devices computational and power-delivery circuitry, variation in power consumption, and also sound, fever websites 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 found 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, which can be near to 1 GHz (1,000 MHz). The investigators took advantage of a uniformity in programming that had been designed to conquer earlier vulnerabilities involving variations in how the programs operate. .

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