I'm trying to integrate a custom IdP for access to OpenSearch dashboard and in the process of creating request signing. For this, I need to create private key based on the algorithms mentioned in request-signing with or without a pass phrase.
If I understand it correctly, for request signing I need private key in any of the algorithms mentioned in the link (eg: RSA_SHA256). But, so far I'm unable to figure out how to use openssl or any other CLI based tool to create private key based on the algorithms mentioned in the link above ? Any help on how to create private key is much appreciated.
Regards, Santosh