sftp: Error“internal inconsistency” in downloading file from special sftp server whish is old cipher

• When testing sftp，appear this： “ssh: handshake failed: ssh: no common algorithm for client to server cipher; client offered: [aes128-gcm@openssh.com chacha20-poly1305@openssh.com aes128-ctr aes192-ctr aes256-ctr], server offered: [aes128-cbc 3des-cbc blowfish-cbc]”

• So, i add Ciphers to the clientConfig below, success to new sftp.Client ` auth := make([]ssh.AuthMethod, 0) auth = append(auth, ssh.Password(sftpOrFtpUrlInfo.Password)) var sshconfig ssh.Config sshconfig.SetDefaults() cipherOrder := sshconfig.Ciphers sshconfig.Ciphers = append(cipherOrder, “aes128-cbc”, “3des-cbc”, “blowfish-cbc”) clientConfig := ssh.ClientConfig{ Config: sshconfig, User: sftpOrFtpUrlInfo.Username, Auth: auth, Timeout: 5 * time.Second, HostKeyCallback: ssh.InsecureIgnoreHostKey(), }

  addr := iptools.BuildAddr(sftpOrFtpUrlInfo.Ip, sftpOrFtpUrlInfo.Port) client, err := ssh.Dial(“tcp”, addr, &clientConfig)`

• but, Error “internal inconsistency” from WriteTo(dstFile) in downloading file from the sftp server.

• In fact， it is working from other sftp server.

Is there a way to solve this problem? Looking forward to your reply.