* Explicitly call out SSH algorithm_signer default
Related: #11608
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Use rsa-sha2-256 as the default SSH CA hash algo
As mentioned in the OpenSSH 8.2 release notes, OpenSSH will no longer be
accepting ssh-rsa signatures by default as these use the insecure SHA-1
algorithm.
For roles in which an explicit signature type wasn't specified, we
should change the default from SHA-1 to SHA-256 for security and
compatibility with modern OpenSSH releases.
See also: https://www.openssh.com/txt/release-8.2
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Update docs mentioning new algorithm change
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Add changelog entry
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Fix missing parenthesis, clarify new default value
* Add to side bar
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
f0dc3a553f