How to safely backup your private keys in the cloud
crypto·@olegnator·
0.000 HBDHow to safely backup your private keys in the cloud
## Encrypt your sensitive files before storing them in the cloud <br/>I am always on the go so I was looking for ways to safely backup all my private keys in the cloud storage. Probably you know by now but I will repeat - if you don't have the keys the money is not yours, so don't keep them on the exchanges unless you are daytrading. Hardware wallets are great and user friendly, but in this article I will show you a very secure way to store your keys online! Needless to say, if you put your files in the cloud e.g. Dropbox, Gmail etc, there is a risk of third party getting access to it, either by a hack or employee misconduct / negligence. It is always good to take extra precautions with crypto, since there is no middlemen here and nobody can reverse the transactions. That being said, you can safely store your private keys or any private files online if you encrypt them well. The best you can do is AES-256 encryption which is pretty much the gold standard in the encryption today and even approved by NSA to encrypt top classified files. Provided you have a strong password – it is unbreakable. It would take billions of years to crack it with a brute force attack. This method is actually the best security for your hard earner coins and you can store it online all you want. Hardware wallets rely on the same encryption technique though they offer some usability advantages and additional features to protect you even if your device is compromised. ____  ____ Here are the step by step instructions. ## Mac 1. Put your text file(s) in a folder and create a zip file e.g. keys.zip 2. Open Terminal window (Search > Terminal) 3. Input ```cd desktop``` or any other directory where your file is stored, but Desktop is the easiest 4. To encrypt (these are standard commands using OpenSSL library, you don’t even rely on any third party software). Replace "keys" with the name of your file. ```openssl aes-256-cbc -in keys.zip -out keys.zip.encrypted``` <br/> 5. It will ask you to input the password two times. Please note that on mac it won’t show the number of characters (****) as you type. Please choose a very strong password with at least 8 characters including uppercase, lowercase letters and special characters. 6. A new file will appear on your desktop - _keys.zip.encrypted_ There you go, now you can upload it to the cloud storage safely. 7. To decrypt ```openssl aes-256-cbc -d -in keys.zip.encrypted -out keys.zip``` ## Windows On Windows machines there is no built in OpenSSL, however, you can also encrypt your zip files with a third party software such as 7-zip. When archiving your files, select AES-256 as the encryption method. ____  ____ Oh, and never forget the password that you used for encryption, back it up on a piece of paper safely in several places. **There is no way to recover your files if you loose your password** Stay safe!
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