Digital signature for a file using openssl

To Generate Private Key openssl genrsa -out privatekey.pem 2048 To Sign openssl dgst -sha256 -sign privatekey.pem -out data.txt.signature data.txt To Generate The Public Key dgst -verify requires the public key openssl rsa -in privatekey.pem -outform PEM -pubout -out publickey.pem To Verify openssl dgst -sha256 -verify publickey.pem -signature data.txt.signature data.txt In case of success: prints “Verified … Read more