The SHA-1 algorithm is similar to MD5, but has improved internal structure and generates a longer (160-bit) random sequence. It has been approved by cryptology experts and is recommended for use. FastTrackFTP supports SHA1_96, MD5 and MD5_96.
Block encryption and stream encryption in symmetric algorithms. Now you already know how keys are generated and how your data is prepared for encryption. When data is encrypted using symmetric algorithms, the following encryption methods are used: block encryption and stream encryption.