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This may be of interest: doesn't seem to be Android-specific, and is open-source, so porting to iOS shouldn't be extremely hard. http://www.mnxsolutions.com/sec

This may be of interest: doesn't seem to be Android-specific, and is open-source, so porting to iOS shouldn't be extremely hard. http://www.mnxsolutions.com/security/two-factor-ssh-with-google-authenticator.html http://www.mnxsolutions.com/security/two-factor-ssh-with-goo... Edit: it seems that the functionality already exists for iPhones; not sure whether this requires communicating with a third-party (Google) server in addition to your device and the target.

JoelJacobson 14y ago
This requires modifications to the server. I want to use normal public/private keys, without any special configuration, but instead of storing the private key in ~/.ssh/id_rsa, I want to store it in my iPhone, and authenticate via the PKCS#11 protocol. This would mean 2-factor security for all my servers and services relying on SSH, such as git, without any modifications on the server side. You would push a button on the iPhone to verify you want to authenticate, instead of typing in digits like with Google Authenticator, which is a bit of a hassle.