Key generation using OpenSSL

Generate RSA public/private key pair

Generate private key:

openssl genrsa -out private_key.pem 1024

Convert private key to PKCS8 format:

openssl pkcs8 -topk8 -in privkey.pem -nocrypt

Generate public key:

openssl rsa -pubout -in private_key.pem -out public_key.pem

Read Base64 Encoded private key

openssl rsa -text -in private_key.pem

Generate Self-Signed certificate

openssl req \
  -x509 -nodes -days 365 \
  -newkey rsa:1024 -keyout private_key.pem -out cert.pem