How to use truststore.jks & keystore.jks files to build a producer application in .NET using Confluent Kafka

I have received truststore.jks & keystore.jks file from a team who manages kafka. We are required to build a producer application in .NET using these .jks files. I have used below commands to convert .jks files to required format as .jks is not compatible with .net applications.

keytool -importkeystore -srckeystore truststore.jks -destkeystore truststore.p12 -deststoretype PKCS12
openssl pkcs12 -in truststore.p12 -nokeys -out truststore.cer.pem

keytool -importkeystore -srckeystore keystore.jks -destkeystore keystore.p12 -srcstoretype jks -deststoretype pkcs12
openssl pkcs12 -in keystore.p12 -out keystore.pem
openssl rsa -in keystore.pem -out newrsakeystore.pem

Output of above commands are assinged to producer config properties as below:

After running getting error: "SSL Handshake failed. client SSL Authentication might be required (see ssl.key.location and ssl.certificate.location)"

Could anyone please help what wrong i am doing here?

_Originally posted by @dsanan0714 in https://github.com/Blizzard/node-rdkafka/issues/563#issuecomment-1122266781_

Review the producer configuration shown in the issue, focusing on ssl.key.location and ssl.certificate.location. Compare the converted PEM files and their certificate or key contents with the required client-authentication settings; done means the producer completes its SSL handshake.

Written by the indexing model from the issue text.