Anton Lundin 3e6137110b Add support for using ssh-agent as a KMS ... This adds a new KMS, SSHAgentKMS, which is a KMS to provide signing keys for issuing ssh certificates signed by a key managed by a ssh-agent. It uses the golang.org/x/crypto package to get a native Go implementation to talk to a ssh-agent. This was primarly written to be able to use gpg-agent to provide the keys stored in a YubiKeys openpgp interface, but can be used for other setups like proxying a ssh-agent over network. That way the signing key for ssh certificates can be kept in a "sign-only" hsm. This code was written for my employer Intinor AB, but for simplicity sake gifted to me to contribute upstream. Signed-off-by: Anton Lundin <glance@acc.umu.se>		2020-11-04 09:06:23 +01:00
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main.go	Add support for using ssh-agent as a KMS	2020-11-04 09:06:23 +01:00