Quick Crypt

快速地穴加密和解密大文件在手機上非常快。

Quick Crypt encrypt and decrypt files on your phone with speed and ease. When a file is encrypted it is replaced with the encrypted file in the same folder with a different suffix. It crypts all files under selected folder.

Quick Crypt can make hundreds of large files (like images and videos) unaccessible within a few seconds. It can do this by encrypting the beginning of the file. For most file types the first part of the file contain vital information on what kind of file it is and how to read the rest of the file. By making this part unaccessible the file will become useless for everyone except top security experts like NSA. If this level of security is enough for you and you have a large set of huge files that you want to keep safe, this app is perfect for you.