![]() ![]() ![]() If you created a text file with the same 10KB within the volume, the dropbox service would recognize the changed blocks and send them only, adaptively. ![]() So, starting from the same example, but now with an adaptive volume, the first sync would probably take a few seconds. First, that when creating such a volume it is not necessary to specify its previous size, therefore, it will have almost zero disk space used. It is in this case that the encryption systems that work with adaptive volumes fit like a glove. What is he going to do? Synchronize the same 5GB again. The sync service will consider that volume as an altered single block, and since it is encrypted, the dropbox has no way of knowing what this is and neither does version control. Now, imagine right after that you mount the volume on the operating system and create a 10KB text file inside and then close it. So, after creating and the first synchronizing the volume to the dropbox server, you spent 5GB of bandwidth and probably caused a delay and slow uploading on your network. So, if you choose to create a full volume encrypted file on your operating system, you will have to specify its size. Consequently, you know that you can synchronize all that there. Imagine that you have a 10GB cloud repository, available on the Dropbox service. To make it a little clearer, I will work on this issue with examples from day to day. This space is a crucial point that must be taken into account when creating encrypted volumes. I wrote and probably the result brings a previous concept: the disk space. Well, by now you should have done a brief summary of what The most common types of adaptive volume encryption are: CryFS, gocryptfs and EncFS. The difference between the first is that it is not necessary for the user to define the volume size at the time of creation, but it will grow over time, adaptively. The most common types of full volume encryption are: LUKS, Veracrypt, Truecrypt and PLAIN dm-crypt.Īdaptive volume encryption, as well as the auto nameĮxplanatory, works by recording each piece separately within the created volume, and grows continuously, as if it were literally a folder in the system. Similarly, you can have multiple volumes in any directory on your operating system, so mount and unmount them at any time. This process is noticed, for example, when a hard disk partition is encrypted during the installation of the OS, where before it loads, it will call a window for the user to enter the decryption password, after which the volume will be mounted as file system and can be used by the user. For example, with it it is possible for the user to create a fixed size file that can be opened in the operating system and receive data writing. But what is the difference between them?įull volume encryption works by creating a volume with a predefined size, as if it were a mini block device (like a pendrive). This denomination was created by me, in this text, as a pedagogical method to help in the following explanation. Both are described in many software as volumes or containers. There are basically two basic types of encryption: full volume e adaptive volume. Well, the first thing we usually think about when we are going to encrypt something, be it a file or folder, is to know what password will be entered, or am I wrong? While this seems to give the impression of being the only valuable information, the way you will produce and manage this encrypted file will much more direct the life cycle of your file, like where you can transport it or how it will grow over time. Advanced technical procedures regarding the theoretical functioning of the mentioned types were not addressed here. This article provides a brief discussion of the types of cryptography available at the ‘day to day’ level and the implications of its use, both locally and in the cloud. ![]()
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