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Using a VPN is a terrific way to protect your internet traffic when you're traveling, but it is 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 rear door to get past the encryption. But no such back door existed, and Apple refused to make one. The FBI had to employ hackers to get into the phone.

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

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

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

Back in the day, if you wanted to maintain a document secret you could use a cipher to encrypt it and then burn the original. Or you could lock it up in a safe. The two main methods in encryption utilities parallel those options.

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

Similar to the virtual drive solution, some goods store your encrypted information in the cloud. This strategy requires extreme caution, obviously. Encrypted information in the cloud has a much bigger attack surface than encrypted data on your own PC.

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That is better It really depends on how you plan to use encryption. If you are not sure, take advantage of this 30-day free trial offered by each one of these products to get a sense of the different options.

After you copy a file into protected storage, or create an encrypted version of it, then you definitely need to wipe out the unencrypted original. Simply deleting it isn't sufficient, even if you skip the Recycle Bin, because the information still exists on disk, and data recovery utilities can often get it back. .

Some encryption products avoid this issue by encrypting the file in place, literally overwriting it on disc using an encrypted version. It's more common, however, to provide safe deletion as an option. If you choose something that lacks this feature, you should find a free secure deletion tool to use along with it. .

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

An encryption algorithm is like a black box. Dump a document, picture, or other document into it, and you get back what seems 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 depended on Advanced Encryption Standard (AES) as a standard, and every one 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 might prefer another algorithm, Blowfish, perhaps, or the Soviet government's GOST. For the typical consumer, however, AES is just fine.

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

With PKI, you receive two keys. One is public; you can discuss it with anyone, enroll it in a key exchange, tattoo it on your foreheadwhatever you prefer. The other is private, and should be carefully guarded. imp source If I want to send you a secret document, I simply encrypt it with your public key.

Simple! .

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Using this program in reverse, you can create an electronic signature that proves your document came from you and hasn't been modified. How Just encrypt it with your private key. The simple fact your public key decrypts it is all of the proof you need. PKI support is less common than support for traditional symmetric algorithms. .

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

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