sftp keys

Hello,

I have generated the public - private keys to set up the SFTP Sender adapter channel and shared our public ssh key to the vendor.

The vendor has provided there public ssh key. I know that the SAP PI keystore there is an option to import TrustedCAs. If I am understanding correctly I need to first convert the ssh public key into X.509 certificate before importing into the key store.

I am using Cygwin to generate the public-private keys.

How can I convert the vendor ssh public key into X.509 certificate or ssl public key so I can import in the keystore?

How to Load keys and certificates in SAP PI 7.3, SAP PO 7.3 EHP1 NWA's Key Storage

Thanks!