Which security protocol provides secured and tamper-proof message transmission?

Which security protocol provides secured and tamper-proof message transmission?

• A. Transport Layer Security (TLS)
• B. Hypertext Transfer Protocol Secure (HTTPS)
• C. Secure Shell (SSH)
• D. IPsec

Answer: (A)

TLS provides secured and tamper-proof message transmission by creating a protected channel that ensures both confidentiality and integrity for data in transit. Through a handshake, it authenticates the endpoints and negotiates strong encryption methods and keys. Once the session is established, each message is encrypted and protected with a MAC or AEAD, so any alteration is detected and rejected. This combination guarantees that the content remains private and cannot be tampered with without detection, while also authenticating who is communicating. HTTPS is essentially TLS used with the HTTP protocol, so TLS is the underlying mechanism that delivers the security. SSH focuses on secure remote login and file transfers, providing encryption and integrity for those sessions rather than a general end-to-end transport for arbitrary messages. IPsec secures IP packets at the network layer and is typically used for VPNs, offering integrity and confidentiality but at a different layer and scope than the end-to-end transport security TLS provides.

TLS provides secured and tamper-proof message transmission by creating a protected channel that ensures both confidentiality and integrity for data in transit. Through a handshake, it authenticates the endpoints and negotiates strong encryption methods and keys. Once the session is established, each message is encrypted and protected with a MAC or AEAD, so any alteration is detected and rejected. This combination guarantees that the content remains private and cannot be tampered with without detection, while also authenticating who is communicating.

HTTPS is essentially TLS used with the HTTP protocol, so TLS is the underlying mechanism that delivers the security. SSH focuses on secure remote login and file transfers, providing encryption and integrity for those sessions rather than a general end-to-end transport for arbitrary messages. IPsec secures IP packets at the network layer and is typically used for VPNs, offering integrity and confidentiality but at a different layer and scope than the end-to-end transport security TLS provides.