SFTP Allow to chose cipher?

Feature
1

When transferring huge files at high speed using SFTP, encryption / CPU can be a bottleneck. Ciphers provide various throughput.

In some cases (appliances...), configuration can't be forced / changed server side to use a specific cipher to optimize for throughput. Like with ssh/scp (-c option), the feature request is to allow either rclone to use system ssh config (.ssh/config, ...) to force cipher by defining Hosts, which would also provide additional benefits, or to specify ciphers in rclone configuration.

This would also fix this.

2

It looks like you can select both ciphers and Mac see the Config section here

Is this something you'd like to add to rclone? Happy to talk you through it.

3

Hi @ncw ,
Thanks for looking at it. Yes the idea would be to make these configurables as part of rclone host config section (optional).

4

The first thing to do would be to open a new issue on Github about this.

Do you want to implement this @DamienG ? If so I'll talk you through it on the issue.

5

Thank you! I will open the issue, but I never code in Go (and I don't have much dev background) :sweat_smile:

1 Like
6

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