SSCP · Question #1034
Secure Electronic Transaction (SET) and Secure HTTP (S-HTTP) operate at which layer of the OSI model?
The correct answer is A. Application Layer.. Both SET and S-HTTP are application-layer (Layer 7) protocols. S-HTTP is an application-level extension to HTTP that encrypts individual HTTP messages, operating entirely within the application layer rather than creating a transport-level secure tunnel. SET was designed by Visa a
Question
Secure Electronic Transaction (SET) and Secure HTTP (S-HTTP) operate at which layer of the OSI model?
Options
- AApplication Layer.
- BTransport Layer.
- CSession Layer.
- DNetwork Layer.
How the community answered
(49 responses)- A88% (43)
- B2% (1)
- C8% (4)
- D2% (1)
Explanation
Both SET and S-HTTP are application-layer (Layer 7) protocols. S-HTTP is an application-level extension to HTTP that encrypts individual HTTP messages, operating entirely within the application layer rather than creating a transport-level secure tunnel. SET was designed by Visa and MasterCard to secure credit card transactions over the internet, also working at the application layer by wrapping transaction data in cryptographic envelopes. This distinguishes them from SSL/TLS, which operates at the Transport/Session layer (Layers 4–5) and secures the underlying connection rather than individual application messages.
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