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A user asks: Hi, I'm trying to import public keys of the user which is in .pem format but it's not recognized by the tool. Please advise which formats are supported.

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OpenSSH has fairly recently created a new private key format called RFC4716 (it isn’t a standard but is derived from this public key standard). That’s their default format now, and you can recognise it by the file header:


We don’t yet support it in our products, although we will soon. You can convert from the new format to the old format PEM keys using ssh-keygen. The command below will do the conversion (overwriting the original file!):

ssh-keygen -e -f openSshKeyNew -m PEM -p

You can also convert to the old PEM format using PuTTYgen.