Use OpenSSL to generate RSA private key and public key

Generate RSA private key

1、openssl genrsa -out rsa_private_key.pem 1024

Convert RSA private key into PKCS8 format

2、openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -out PEM -nocrypt

Generate RSA public key

3、openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem

Now the RSA key pair is available