Strange sha256 results

Steve O'Hara-Smith steve at
Thu Sep 26 18:42:10 UTC 2019

On Thu, 26 Sep 2019 13:00:24 -0400
"James B. Byrne via freebsd-questions" <freebsd-questions at>

> When I connect via ssh from a FreeBSD host to a recently created
> CentOS-6.10 host I get this message:
> The fingerprint for the RSA key sent by the remote host is
> SHA256:EKfevqVDSBpuq1TBFf/vRtEqVsP4gUjGoc5OGVtnntg
> I have never seen a hash value in anything other than hexadecimal,

	Ssh uses base64 for SHA256 fingerprints because it is shorter (44
characters instead of 64 to represent 32 bytes) than the hex representation,
the old md5 fingerprints were shorter (16 bytes) so hex was OK.

Steve O'Hara-Smith <steve at>

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