OpenSSL

Manipulation

# generate a new private key and certificate signing request
openssl req -out chorke.csr -new -newkey rsa:2048 -nodes \
-keyout chorke.key

#generate a self-signed certificate 
openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 \
-keyout privateKey.key -out certificate.crt

References

• Common Most OpenSSL Commands
• import a public SSL certificate into a JVM
• Create and Install an Apache Self Signed Certificate