x/crypto/ssh: TestSSHCLIAuth fails on Windows

[heschi]

Not sure how I didn't notice this until today. See #60981 previously.

Example: http://ci.chromium.org/b/8763261739598890561:

sign_and_send_pubkey: signing using rsa-sha2-512 SHA256:Anr3LjZK8YVpjrxu79myrW9Hrb/wpcMNpVvTq/RcBm8\r\nBad permissions. Try removing permissions for user: UNKNOWN\\\\UNKNOWN (S-1-15-2-2) on file C:/b/s/w/ir/x/t/TestSSHCLIAuth1586735692/001/rsa.

Seems like a bug in the test so for now I'm going to skip.

cc @drakkan @golang/security @FiloSottile @rolandshoemaker

[gopherbot]

Change https://go.dev/cl/545135 mentions this issue: ssh/test: skip TestSSHCLIAuth on Windows

[drakkan]

uhmm... I cannot reproduce on Windows 10

This is currently the only Windows VM I have access to.

It appears that 0600 is not enough to make the private key file not accessible by other users on some versions of Windows