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The EaseFilter File Protector SDK allows you to monitor or control the file I/O activities in file system level in real time, prevent your sensitive files from being accessed by unauthorized users or processes. You can control the file I/O activities on file system level, capture file open, create, overwrite, read, write, query file information, set file information, query security information, set security information, file rename, file delete, directory browsing and file close I/O requests. EaseFilter file system filter driver is a kernel-mode component that runs as part of the Windows executive above the file system. The EaseFilter file system filter driver can intercept requests targeted at a file system or another file system filter driver. By intercepting the request before it reaches its intended target, the filter driver can extend or replace functionality provided by the original target of the request. The EaseFilter file system filter driver can log, observe, modify, or even prevent the I/O operations for one or more file systems or file system volumes. EaseFilter file protector provides a comprehensive security solution for transparent file level encryption. It allows the file to be encrypted or decrypted transparently on-the-fly, every file will be encrypted with the unique encryption iv key, it can allow only authorized users or processes can access the encrypted files. By registering the specific I/O events, you can fully control the I/O, your callback functions will be invoked for every registered I/O, you can allow, modify or block this I/O based on the I/O information. With the access rights setting, you can add or remove the access rights to the specific processes or users in the file filter rule. So, you can authorize the users or processes to access your protected files, you also can prevent your protected files from being accessed by the unauthorized users or processes.