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All these are barebones apps that allow you to protect your documents, and that's it. You won't find a file shredder, a password generator or a password strength meter. Also, these encryption solutions, although viable, are somewhat less intuitive than their paid counterparts. The paid versions walk you through each step and give you access to easy-to-read aid files and tutorials.So, in case you're comfortable with certificates and keys to encrypt documents, BitLocker may work well for you.

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

An installation wizard makes setup simple, and you get suggestions that will assist you learn the program in little bites each time you begin the program. Secure IT also compresses files better than many of its rivals, so you can save space when you lock your files away.Kruptos 2 Guru kicks off you using a help guide immediately after installation, so you can quickly learn how to use it.

It is a subscription, though, which means you have to renew your license annually for this software.SafeHouse Personal Edition makes encrypting files a cinch you just drag and drop your files into a volume in which they are instantly encrypted. It functions just like a hard disk, but virtually. You need 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 that could have allowed hackers to steal encryption keys by a favorite security bundle by briefly listening in on unintended"side channel" signals from smartphones.

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

"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' much more realistic," said Milos Prvulovic, associate chair of Georgia Tech's School of Computer Science. "The designers of encryption software now have another problem they need to take into account because continuous snooping long periods of time will no longer be required to steal this information." .

The side channel attack is believed to be the first to resource 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 protected interactions on sites and for signature authentication. The attack revealed a single recording of a cryptography key trace was sufficient to break 2048 bits of a private RSA key. .

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Outcomes 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 at the 27th USENIX Security Symposium August 16th in Baltimore.

After successfully attacking the phones and an embedded system board -- that used ARM processors -- the investigators proposed a fix for the vulnerability, which had been embraced in versions of the applications made available in May.

Side channel attacks extract sensitive information in signals created by electronic activity within computing devices during normal operation. The signals include electromagnetic emanations created by current flows within the devices 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 broad ) band around the phones' processor clock frequencies, which can be close to 1 GHz (1,000 MHz). The investigators took advantage of a uniformity in programming which had been designed to conquer earlier vulnerabilities involving variations in how the programs function. .