On Thu, 7 Oct 2010, Alan Ong wrote:
I am currently using libssh2 to create a SFTP client that uses ssh2 protocol, SHA-1, and aest128-ctr. Based on my research, libssh2 chooses the "best" mutually supported algorithm (http://comments.gmane.org/gmane.network.ssh.libssh2.devel/4028) for cipher, so does that mean that if the SFTP server uses aes128-ctr cipher, then libssh2 automatically chooses aes-128-ctr as default cipher?
Yeps!
Another question, how do i set libssh2 to use hmac-sha1? I have browse the API document, and I have not found a function that could set the mac hashing to hmac-sha1.
It selects hmac the same way. It is a negotiation where libssh2 will prefer the one it considers best.
If you switch on tracing during the session handshake you'll get to see (and learn) all those details!
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