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Using a VPN is a great way to protect your internet traffic when you are 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 for a back door to get beyond 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 prize for the bad guys. It will leak sooner or later. In a talk at Black Hat this past summer, Apple's Ivan Krstic disclosed that the company has done something similar in their cryptographic servers.
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Apple can't update thembut the poor guys can't get in either. .
Back in the day, in the event that you wanted to maintain a document secret you can 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 sort of product simply processes files and folders, turning them into impenetrable encrypted versions of these. The other creates a virtual disk that, when open, acts like any other drive on your system. When you lock the digital drive, all the documents you put into it are entirely inaccessible. .
Similar to the virtual drive solution, a few goods store your encrypted information in the cloud. This strategy requires 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 really depends on how you plan on using encryption. If you're not sure, take advantage of the 30-day free trial offered by each of those products to have a sense of the different options.
After you copy a document into secure storage, or create an encrypted version of it, then you absolutely need to wipe out the unencrypted original. Simply deleting it isn't sufficient, even if you bypass the Recycle Bin, since the information still exists on disk, and data recovery utilities can often return back. .
Some encryption products avoid this issue by encrypting click now the document in place, literally overwriting it on disc with an encrypted version. It is more common, though, to provide secure deletion as an option. If you choose 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 recovery works since the magnetic recording of data on a hard drive isn't actually digital. It's more of a waveform. In simple terms, the procedure involves nulling out the known information and reading around the borders of what's left.
An encryption algorithm is similar to a black box. Dump a document, image, or other file 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 settled on Advanced Encryption Standard (AES) as a standard, and all the products gathered here service AES. Even the ones that support other calculations tend to recommend using AES.
If you're an encryption specialist, you may want another algorithm, Blowfish, perhaps, or even the Soviet government's GOST. For the average user, however, AES is just fine.
Passwords are important, and you have to keep them confidential, right Well, not when you use Public Key Infrastructure (PKI) cryptography.
With PKI, you receive two keys. One is public; you can share it with anyone, register it in an integral exchange, tattoo it on your foreheadwhatever you prefer. The other is private, and needs to be carefully guarded. If I want to send you a secret document, I simply encrypt it with your public key.
Simple! .
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Using this system in reverse, you can create an electronic signature which proves your document came from you and hasn't been modified. How Just encrypt it with your private key. The fact your public key decrypts it is all the proof you need. PKI service is less common than service for traditional symmetric algorithms. .
If you want to talk about a document with someone and your encryption application doesn't support PKI, there are different options for sharing. Your Domain Name Many products allow creation of a self-decrypting executable file. You may also find that the recipient can use a free, decryption-only tool.