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Using a VPN is a terrific way to shield your internet traffic when you're traveling, but it's not a solution for encrypting your regional files. .

When the FBI needed information from the San Bernardino shot's iPhone, they asked Apple to get a back door to get past the encryption. But no such back door existed, and Apple refused to make one. The FBI needed to hire hackers to get into the phone.

Why wouldn't Apple help Since the moment a back door or comparable hack exists, it will become a target, a decoration for the bad guys. It will flow sooner or later. In a talk at Black Hat this past summer, Apple's Ivan Krstic revealed that the company has done something similar in their cryptographic servers.



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Apple can't update them, but the poor guys can't get in either. .



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All of the products in this roundup explicitly say that they have no rear door, and that is as it should be. It will mean that if you encrypt an essential document and then forget the encryption password, then you've lost it for good.

Back in the day, in the event that you wanted to keep a document key you can use a cipher to encrypt it and then burn the original. Or you could lock it up in a protected. The two main approaches in encryption utilities parallel with these options.

One type of product simply procedures files and folders, turning them into impenetrable encrypted versions of themselves. Another creates a virtual disc drive that, when open, behaves like any other drive on your system. When you lock the virtual drive, each the files that you put into it are completely inaccessible. .

Like the digital drive solution, some goods save your encrypted information in the cloud. This strategy demands extreme care, obviously. Encrypted information in the cloud has a far bigger attack surface than encrypted data on your own PC.



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That is better It actually depends on how you plan on using encryption. If you're not sure, take advantage of this 30-day free trial offered by each one of those products to have a sense of the different options.

Once you copy a document into secure storage, or create an encrypted version of it, you absolutely need to wipe out the unencrypted original. Just deleting it isn't sufficient, even if you bypass the Recycle Bin, because the information still exists on disc, and data recovery utilities can often return back. .

Some encryption products prevent this problem by encrypting the file in location, literally overwriting it on disc with an encrypted version. It's more common, though, to provide secure deletion as an option. If you select a product that lacks this attribute, you should find a free secure deletion tool to use along with it. .

Overwriting information before deletion is sufficient to balk software-based recovery tools. Hardware-based forensic retrieval functions because the go to the website magnetic recording of data on a hard drive isn't actually digital. It is more of a waveform. In simple terms, the process involves nulling out the known data and reading around the edges of what's left.

An encryption algorithm is similar to a black box. Dump a document, picture, or other file into it, and you get back what sounds like gibberish. Run that gibberish back through the box, with the exact same password, and you get back the original.



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The U.S. government has settled on Advanced Encryption Standard (AES) as a standard, and all of the products accumulated here service AES. Even the ones that support other calculations tend to recommend using AES.

If you are an encryption expert, you may prefer another algorithm, Blowfish, perhaps, or the Soviet government's GOST. For the typical user, however, AES is just fine.

Passwords are important, and you have to keep them secret, right Well, not when you use Public Key Infrastructure (PKI) cryptography.

With PKI, you get two keys. One is public; you can discuss it with anyone, enroll it in a key exchange, tattoo it on your foreheadwhatever you like. Another is personal, and needs to be carefully guarded. If I want to send you a secret document, I simply encrypt it with your public key. More about the author

Simple! .



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Using this program in reverse, you can create a digital signature which proves your document came from you and hasn't been altered. How Just encrypt it with your private key. The fact your public key decrypts it is all the evidence you need. PKI support is less common than support for traditional symmetric algorithms. .

If you want to talk about a file with someone and your encryption application doesn't support PKI, there are other options for sharing. Many products allow creation of a self-decrypting executable file. You may also find that the recipient can use a complimentary, decryption-only tool.

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