RSA
” in this instance):PKCS#8
format and the public key in X.509
format. We need this information below to load the keys.SHA256withRSA
” which is guaranteed to be supported on all JVMs. Use the private key (either generated or load from file as shown above) to initialize the Signatureobject for signing. It is then updated with contents from the data file and the signature is generated and written to the output file. This output file contains the digital signature and must be sent to the recipient for verification.