Dime file sharing

This is a good idea to do if you are store your tax papers, medical journals etc. This is done the same way but you simply do not share the secure folder or the key with anyone. You still need the key yourself to decrypt the information later, so we strongly recommend you using a password manager as long term storage of keys even if you will not share them with anyone. Is open source less secure? Open source is often said to be less secure, but that is not true if you use a software that has been around for a long time and has been examined and used by many cyber security experts.

VeraCrypt fulfills both those requirements. But it is much more difficult to add backdoors in open source software without it being visible to everyone. So if a large community of users trusts an open source software, then that is your most secure option. So in the post box example, there would be a public key to open the mail chute that anyone has access to and a private key that only the postal workers have that they use when they empty all the letters.

While you do not risk compromising any data you have already collected by publishing the public key to the world, you should not do that as it would allow a malicious person to send you so much fake data to your collection box that it might be difficult to tell what data is real and what data is fake.

While the main benefit of asymmetric encryption is that you do not share the private key with anyone who sends you data, that is also the main limitation as it is only secure as a one-way communication.

Another benefit is that it allows for a more automatic set-up as it is ok for servers to handle sharing of the public key. Just as with symmetrical encryption, there is absolutely no way to decrypt files if the private key is lost. So even if you do not intend to share the private key with anyone, we still strongly recommend that you store it in a password manager for the future. Asymmetric encryption is perfect for data collection as the data is only intended to flow one way, and we do not want to have to set up password managers on the devices used in data collection.

By using asymmetric encryption we can allow the tablets to send data securely to the server without making it possible for anyone using a tablet to see what is already on the server. It is as if we are sending a post collection box where the tablet can safely store the information, and no one will be able access it apart from us, not even anyone using the tablet where the data was first encrypted.

Just as in symmetric encryption it is important that no-one who is not on the IRB has access to the decryption key, so the private key cannot be shared with any third party service we use for data collection.

The private key should not be used to decrypt the data while it is still on the server, it should only be decrypted when or after it is downloaded. If you did not set up encryption or if you decrypted your data while it was still on the server, then the third party data collection service provider can read your data and they are most likely not listed on your IRB. Some data collation service providers let you view encrypted data in your browser without downloading it by providing the decryption key.

It is perfectly possible to securely implement that without the service provider gaining access to the data, but make sure that you trust that service providers ability to do so.

When you download the data you should decrypt it with the private key, and then put it in a folder that is encrypted using symmetric encryption. In symmetric encryption the same key is used to view, modify and add data, which is much more practical when you start working with your data on your computer. This type of encryption is quite different to symmetric and asymmetric encryption, as anything hashed encrypted with one-way hashing is impossible to decrypt, or un-hash.

There are use-cases where it makes sense to hash our data, but encryption is not one of them as there is no way of decrypting data that has been hashed. The reason why we are brining it up is that it is very central to secure online activities, especially passwords handling, and that is related to encryption and data security. While it is impossible to un-hash anything, the same piece of information is always hashed the same way as long as the same hashing algorithms is used.

So, when the input to a hashing algorithm is the same, then the output is always the same. This also means that if the output to a hashing algorithm is different, then the inputs used could never have been the same. There is no practically possible way to calculate the input based on the output even if you know exactly which algorithm that was used. The input to output conversion takes milliseconds but the output to input conversion would take millennia if attempted, rendering it practically impossible even though it is theoretically possible.

Good hashing algorithms are implemented so that two similar inputs still has widely different outputs so there is no way to guess the input just that the output is similar to another output you know the input for. Also, if you hashing the output again, you do not get to anything similar to the input.

In fact, re-hashing something 10 times is a common trick to make it even more impossible to crack a hash. When you create an account on any service like Facebook. If their servers would be hacked, or if their data base engineers were undercover hackers, all they would see is the output of the one-way hash algorithm and not the input, i. Every time you log in to your account, your password will be put into the same hashing algorithm and the output will be compared to what they saved in their data base when you created your account.

If the outputs or hashes are the same, then they know that you used the same password both times, even though they never saved your password when you signed up. This is not difficult to implement, so any service that does not hash user passwords before saving them is extremely insecure and should always be avoided. No web-company will ever show you their database but here are examples on how you can know that they did not hash your password before storing it. If you ever encounter any of the scenarios below, stop using that service and report it on cyber-security forums immediately.

Example of weaknesses of one-way hashing. Common input leads to common output. Under All Networks , select Turn off password protected sharing. In the Run dialog box, type services. Right-click each of the following services, select Properties , if they're not running, select Start , and next to Startup type , select Automatic :. Share things with nearby devices in Windows Share files in File Explorer. Make a Wi-Fi network public or private in Windows Fix network connection issues in Windows.

Windows 10 More How do I tell which files or folders I've shared over a network? Open Windows Update Make sure the computers are on the same network. Turn on network discovery and file and printer sharing, and turn off password protected sharing.

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Works with Slides. Works with Forms. Works with:. You can share with readable or writable permission. Moreover, you can unlink sharing anytime.

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