0
votes
2answers
86 views

Protecting against/detecting a specific Man in the Middle attack

I'm working on a specific (hypothetical) situation, where I have two client machines attempting to perform a public key exchange, via a server. There's no possibility for a direct connection between ...
1
vote
0answers
62 views

Does Diffie-Hellmann (DH) key exchange protocol lower Off-The-Record protocol (OTR) security level?

Off-the-Record protocol employes Diffie-Hellman key exchange protocol (DH). DH protocol does not provide authentication of the communicating parties and, according to many sources, is vulnerable to ...
2
votes
5answers
270 views

Is asymmetric encryption vulnerable to man-in-the-middle attacks?

I'm looking for ways to send private messages over a public channel, and in doing this I stumbled in asymmetric encryption, which is just perfect for what I was looking for at first - A and B ...
0
votes
1answer
153 views

How does the MITM (Man in the middle) attack happen with respect to SQRL

I recently looked into SQRL and was intrigued by its simplicity. At first glance it seemed reliable and its author claimed it was inherently fail-proof against phishing and MITM attacks. But upon ...
2
votes
4answers
172 views

How is “security word” safe from man in the middle attack?

In this bank site I read the following lines Item #2 - You will also need to create a "Security Word". This allows you to verify that you have reached our Internet Banking site, and not some other ...
1
vote
0answers
117 views

Routing Protocol Encryption

As far as I know 'newer' versions of routing protocols support authentication between routers. What about encryption and integrity checks? Some implementations like this one from Cisco use MD5, which ...
4
votes
5answers
451 views

What are the advantages of multi-level authentication?

By multi-level authentication, I am referring to the fact that the user makes use of a primary username password keypair to log into his account. Then, to perform some other actions, such as authorize ...
5
votes
2answers
397 views

Man in the middle attacks for Out of band Authentication

I was researching on methods to avoid man in the middle attacks. I thought of using out of band authentication but i read the wikipedia article on the same topic which goes as follows: "In ...
3
votes
6answers
895 views

How to “demonstrate” man-in-the-middle attack?

I'm TAing a particular course on system security. A specific example is transitting the password in plain text when developing a web application (as part of a class project). Over the years a bunch ...
3
votes
2answers
263 views

Should the Keygen element be used to create a certificate for mutual auth TLS? What alternatives are there?

I'm interested in using mutual auth TLS to improve the security of my javascript based webservices . I've looked at the Keygen element and given all its issues, not sure if this can even be used for ...
1
vote
2answers
295 views

Are SIP REGISTER transactions w/ HTTP Digest subject to replay attacks?

It is my understanding that the authentication during a SIP registration is done through some kind of an MD5 hashing algorithm known as HTTP Digest, and doing a tcpdump of the actual traffic I've ...
8
votes
5answers
625 views

How do RSA fingerprints protect from MITM attacks?

I understand that RSA fingerprints are used to verify that you are really connecting directly to who you want to connect to, and not someone else posing as that site. Like when you do a git push, it ...
1
vote
2answers
557 views

Signed request vs HTTP digest auth for API authentication?

By signed request I mean something like this (simplified example): Client creates a sig in his request: $sig = hash('sha256', $api_key.$data); which generates 7409ur0k0asidjko2j for example. He then ...