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- How does SSL/TLS work? 3 answers
Does HTTPS retrieval, among its other effects, sign a document?
I'm asking in hopes of understanding in more specific details what TLS accomplishes.
I will try to elaborate my question, as follows.
Suppose Bob retrieves a document message.txt from Alice using HTTPS. In the course of this retrieval, Bob also stores into a zip file named packets.zip the relevant network communication (TCP packets, and similar) that Bob sees.
- If Bob presents packets.zip to Dan, can Dan expect that with high probability Alice sent message.txt? By this I mean to ask, is packets.zip in effect a copy of message.txt that is cryptographically signed by Alice?
- When Bob no longer has an open connection to Alice and Bob presents packets.zip to Dan, is Bob thereby revealing any secrets of Bob's or Alice's to Dan? I expect that Bob is not.
- If packets.zip constitutes a signed copy of message.txt, when does the signature become invalid? Is it valid until and unless the relevant certificate is revoked?