מה מהבאים משמש להעברת הודעה מוצפנת?

Here's an explanation of each option: SHA-256: What it does: SHA-256 is a cryptographic hash function, not an encryption algorithm. It takes an input and produces a fixed-size (256-bit) hash. Hash functions are typically used for integrity checks, not for encryption or message transmission. Conclusion: It does not transmit encrypted messages. Diffie-Hellman: What it does: Diffie-Hellman is a key exchange algorithm used to securely exchange cryptographic keys over a public channel. It does not directly encrypt or transmit messages but helps establish a shared secret key for later encryption. Conclusion: It does not directly transmit encrypted messages. Digital Signature: What it does: A digital signature is used to verify the authenticity and integrity of a message, ensuring it was sent by the claimed sender and has not been altered. It does not encrypt the message itself. Conclusion: It does not transmit encrypted messages. Random Salt: What it does: A salt is random data added to a password or message before hashing, typically to enhance security in password storage. It is not used for encryption or transmission of messages. Conclusion: It does not transmit encrypted messages.