Collaborate Disseminate
My book suggested the following protocol to replace SSL:
A lot of the terms are familiar to me from the Original SSL, like ChangeCipherSpec message which means from now on the messages I send will be encrypted. and FinishedClient: which i… Continue reading SSL, how does it work? [closed]
I was looking for an example of protocol to verify user’s identity using Diffie Hellman which works like this:
client sends: $g^x$, ID-Number
server responds with: $g^y$, $E_H_{pwd} challenge$
client responds with: challenge
I understand… Continue reading What E means in Diffie Hellman protocol? [migrated]
I’m trying to stop a server using Diffie Hellman key exchanges of less than 2048 bits, but I’m getting confusing results.
I’ve run
Get-TlsCipherSuite | Format-Table Name, Exchange, Cipher, Hash, Certificate
and I can see
TLS_DHE_RSA_WITH_A… Continue reading IIS Crypto 3.2 not getting rid of Diffie-Hellman algorithms of less than 2048-bits
I’m implementing an ElGamal encryption system for academic purposes but I am not sure of the latest recommendations, standards and state of the art literature about this. Note that my system is already implemented and fully working, I only… Continue reading ElGamal and discrete logarithm cryptography, modern standards and state of the art literature
In Tor, when a client communicates with an entry node, they exchange the parameters such as the prime number and the generator with each other through DH.
What about when an entry node communicating with a middle node, or a middle node com… Continue reading Tor: How does entry nodes communicate with middle nodes? How does middle nodes communicate with exit nodes?
Does Tor use Ephemeral DH, Static DH or Anonymous DH? I have heard that the latter two are not secure so I am worried if Tor uses them.
First, I realize trying to come up with your own crypto schemes is not a good idea. I’m a relatively new member of a team of developers utilizing such a custom scheme and I’m trying to come up with arguments to argue against that policy.
T… Continue reading Diffie Hellman with server public key embedded on the client
I have some confusion between the different public and private keys that are used in a TLS 1.3 connection. When a client makes a request to a server, I’ve always thought that a server’s TLS x509 certificate was passed to the client and cer… Continue reading TLS 1.3 RSA key exchange
bit confused by something regarding Tor. As per what I have read and confirmed in this answer Tor: Is a diffie-helman key exchange being done over reciepient of traffic? the client does a DH key exchange with each node in the relay.
This r… Continue reading If Tor does diffe-hellman with each node how do they all not know the sender
I have read digital signature with Big Brother but don’t understand the sequence.
One approach to digital signatures is to have a central authority that
knows everything and whom everyone trusts, say Big Brother (BB). Each
user then choos… Continue reading Digital signature with Big Brother [migrated]