Convert Ed25519 to RSA fingerprint (or how to find SSH fingerprint)

ssh sftp biztalk ed25519
NealWalters picture NealWalters · May 15, 2017 · Viewed 11.1k times · Source

BizTalk sees thumbprint for an internal SFTP test as ssh-rsa 2048 33:88:f0:ff:63:78:a9:2b:3f:09:cb:05:81:db:59:86

WinSCP shows: ssh-ed25519 256 ff:2e:5e:33:7a:15:de:69:18:cf:82:ae:f0:4e:7b:d2 (when I click "Session", then "Server/Protocol Information")

Is it possible to convert one to the other? Is it possible to get the ssh-rsa thumbprint from WinSCP, PuTTY or some other tool?

Answer

Jakuje picture Jakuje · May 15, 2017 
ssh-rsa 2048 33:88:f0:ff:63:78:a9:2b:3f:09:cb:05:81:db:59:86

and 

ssh-ed25519 256 ff:2e:5e:33:7a:15:de:69:18:cf:82:ae:f0:4e:7b:d2

Are same fingerprint types, but different key types (one is RSA and the other ED25519 -- elliptic curve). There is no way one to the other, because they are fingerprints of different keys.

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