Linked Questions

3
votes
5answers
475 views

Why is it not possible for an ISP to man-in-the-middle attack an SSL connection? [duplicate]

If the ISP carries my data, why do people seem to think they cannot see the contents? Wouldn't they be holding the key?
0
votes
1answer
386 views

Is TLS secure when full eavesdropping on the network occurs? [duplicate]

Possible Duplicate: How is it possible that people observing an HTTPS connection being established wouldn’t know how to decrypt it? Alice connects to Bob's site via a TLS secured connection ...
1
vote
2answers
240 views

Reg HTTPS man in the middle [duplicate]

Possible Duplicate: How is it possible that people observing an HTTPS connection being established wouldn’t know how to decrypt it? A browser sends a request to gmail.com, gmail sends the ...
0
votes
0answers
17 views

How can it be possible to have encrypted communication between a server and a client if the server has only a public key [duplicate]

If only the server has an electronic certificate (User ID, Version, Public key), how can be possible the encrypted communication between the client and the server?
323
votes
3answers
115k views

How does SSL work?

How does SSL work? I just realised we don't actually have a definitive answer here, and it's something worth covering. I'd like to see details in terms of: A high level description of the protocol. ...
19
votes
6answers
9k views

SSL with GET and POST

I'm pretty new to security, so forgive my basic question, but does SSL encrypt POST requests but not GET requests? For instance, if I have two requests GET: ...
17
votes
3answers
32k views

Understanding 2048 bit SSL and 256 bit encryption

On DigiCert's page, they advertise a 2048 bit SSL with a 256 bit encryption: http://www.digicert.com/256-bit-ssl-certificates.htm What exactly is the difference here and why are two encryption bits ...
20
votes
2answers
15k views

Does https prevent man in the middle attacks by proxy server?

There is a desktop client A connecting to website W in a https connection A --> W Somehow between A and W, there is a proxy G. A --> G --> W In this case, will G be able to get the ...
17
votes
1answer
6k views

My understanding of how HTTPS works (gmail for example)

I want to ask if my below understanding is correct or not regarding the HTTPS used for the webpage we are visiting. I will use Gmail as an example: My laptop tries to connect to the Gmail server ...
8
votes
3answers
3k views

Preventing a spoofing man in the middle attack?

I was humming along with my usual routine of listening to old Defcon videos trying to understand some of the basics of what's going on in the IT Security world, when I came across one explaining man ...
4
votes
2answers
4k views

Is it possible to decrypt a SSL/TLS session without doing a MITM-attack?

I'm not talking about decrypting the connection while the SSL/TLS is happening (MITM) but after the connection is closed and I have a pcap file of the entire negotiation/data transfer process. How ...
3
votes
5answers
2k views

How can I explain the concept of public and private keys without technical jargon? [duplicate]

Possible Duplicate: Principle of asymmetric algorithm in plain english In the spirit of How can I explain SQL injection without technical jargon?, do you have any suggestions on how to ...
5
votes
2answers
440 views

How are two systems able to set up a secure SSH tunnel over a public connection?

As I understand it, when two systems create a secure SSH tunnel, the first step involves communicating the 'guidelines' for the encryption of that tunnel. If an third system is able to listen in on ...
3
votes
3answers
278 views

Public key in SSL protocol

I have gone through many of the posts including My understanding of how HTTPS works (gmail for example). Everywhere it's mentioning that before creating a https connection, the browser verifies the ...
1
vote
4answers
843 views

IPSec VPNs and symmetric keys

When dealing with IPSec based VPNs, I understand that there is a slight "problem" with symmetric key exchange. Obviously, you can't send the keys over the VPN, since they are used to guarantee the ...

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