I am encrypting a message using an hybrid cryptosystem:
I encrypt my message using AES-256 and I encrypt the symmetric cipher key using RSA.
The following questions come to my mind:
- I want to know if it safe to send the encrypted message with the encrypted key together ?
- What does it imply for an attacker to get the RSA encrypted key with the encrypted message ?
- What is the correct way to send the message and the encrypted key ?