Which file server upload protocol can use log checksums to prevent MITM attacks?

SFTP, which stands for Secure File Transfer Protocol, is designed to provide secure file transfer capabilities over a reliable data stream. One of the key features of SFTP is its ability to use encryption for both the file transfer process and the authentication of users, effectively guarding against potential Man-in-the-Middle (MITM) attacks that can compromise data integrity and confidentiality.

In addition to encryption, SFTP can implement mechanisms such as checksums to validate the integrity of the files being uploaded or downloaded. These checksums help ensure that the files have not been altered during transit, thus effectively enhancing security against MITM attacks. By comparing the checksums of the original file and the received file, SFTP can verify that no unauthorized changes have occurred, thereby maintaining the trustworthiness of the data being transferred.

Other protocols like FTP, OFTP, and HTTP lack inherent encryption and secure mechanisms to protect against MITM attacks, making them more vulnerable to such threats. While FTP and HTTP are widely used for data transfer, they do not offer built-in features like checksums to ensure data integrity in a secure manner. In contrast, SFTP's design and features provide a robust solution for secure file transfers in environments requiring heightened security.