Tls, Cryptography, Security, Openssl, Cybersecurity.
echo -n 'Hello world!' | openssl dgst -sha256 -mac hmac -macopt hexkey:$key (stdin)= 4c06c1b1dfc9fe1ef67d942435b9546dca30b59283df1d5a3d4115e0770c9f06 We will go through following steps for Authenticated Encryption: Generate Encryption key and Message Authentication Key Generate Initialization