Hi,
I am trying to implement support for SHA256 public keys. I have been able to reach as far as the lib/vssh/libssh2.c file and the ssh_check_fingerprint function. Now I have no idea on how to calculate the SHA156 public key from the hostkey hash, a.k.a. 'fingerprint, in the same manner as done for the MD5 public key (See https://github.com/curl/curl/blob/master/lib/vssh/libssh2.c#L627). From where have you picked up the algorithm for MD5, from the 'The MD5 Message-Digest Algorithm' RFC (https://www.ietf.org/rfc/rfc1321.txt)? Is there an RFC that explains the 'The SHA256 Message-Digest Algorithm'? Does any know where to get information about this? BR /Mats
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