Why when I transfer a file through SFTP, it takes longer than FTP?
https://stackoverflow.com/questions/8849240/why-when-i-transfer-a-file-through-sftp-it-takes-longer-than-ftp
WEBJan 13, 2012 · Several factors affect speed of SFTP transfer: Encryption. Though symmetric encryption is fast, it's not that fast to be unnoticed. If you comparing speeds on fast network (100mbit or larger), encryption becomes a break for your process. Hash calculation and checking. Buffer copying.
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