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Win7 file sharing encryption solution In enterprise or European Cup livehome network environments, file sharing has become an indispensable part, which can make it convenient for different users to exchange files or share resources. However, in file sharing, how to protect file privacy and security is a very important issue. This article will introduce the Win7 file sharing encryption solution to help users better protect their shared files. I. Basic knowledge of file sharing in Windows 7 In Windows 7, file sharing is carried out through the SMB protocol, which is the standard protocol of Windows network sharing. File sharing usually adopts workgroup or domain network mode.For the working group, it is a group of cooperative computers without the concept of central server. Each computer has its own user and password, and can share its own files and resources. The domain network, on the other hand, is a more complex network environment. It has a central server, and all computers must be connected to this server. This server is responsible for the authentication of all users and the sharing of resources. II. Security vulnerabilities in Win7 file sharing Although file sharing facilitates our work and life, the SMB protocol it adopts has some security vulnerabilities. The most common problem is unencrypted user credentials in the file sharing process. Attackers can use these credentials to obtain sensitive information in file sharing, such as user names, passwords and data. In addition, in the process of file sharing, due toIf the permissions of the shared folder are improper or the permissions of the shared account are improperly set, the attacker may carry out network attacks through the SMB protocol, such as ransomware, Trojan viruses, etc., resulting in file privacy leakage, data theft and other risks. III. Win7 File Sharing Encryption Solution 1. File encryption Windows 7 provides EFS file encryption function, which can encrypt shared files without exposing the encryption key. To use this function, users need to log in to their Windows account with the certificate and select to encrypt the file to be shared to store it in the folder that needs to be shared. When the user shares the folder and sets the sharing permission, only the user with the correct certificate can get access. Therefore, even if the user who accesses the shared folder does not know the encrypted key, the file cannot be accessed.This can prevent malicious attacks such as installing Trojan horses and unauthorized access attacks. Two. Disk encryption Windows 7 also provides BitLocker disk encryption tool to protect all files on the entire hard disk. Disk encryption, which can encrypt the entire hard disk at the operating system level. When BitLocker is turned on, unauthenticated attackers cannot access the BitLocker-encrypted disk even if they successfully enter the computer. 3. Set permissions for shared folders. When setting up shared folders, we can set different permissions for different users, so as to improve the security of files. For example, we can assign administrators to the "Read/Write" group of the folder, and ordinary users to the "Read-only" group. Four. Password policy in WiOn the ndows 7 system, we can set complex password policies to enhance the security of passwords. For example, set the length of the password, use the combination of symbols, uppercase letters, lowercase letters and numbers, etc. In this way, even if the attacker obtains a user's password, it is difficult to crack its password, so as to more effectively protect the security of shared files. IV. Conclusion File sharing has greatly improved our lives and made file sharing more convenient. However, in file sharing, we should pay attention to the privacy and security of files. Win7 file sharing encryption solution can greatly reduce these risks and protect your shared files from attacks, theft, tampering, deletion or destruction. If you need to share files and protect the privacy and security of files, you can use the above solutions.

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