Collaborate Disseminate
In the TLS handshake, I noticed that key messages like ClientHello and ServerHello aren’t piggybacked onto ACK packets and are instead sent as separate packets. From a networking perspective, this seems inefficient because there could be … Continue reading Why in this TLS handshake, the ClientHello,ServerHello, etc are not Piggybacked in the ACKs packets? [closed]
I sent a client hello indicating TLS1.3 support, and it contains a list of all ciphersuites that support TLS1.3, TLS1.2 and TLS1.1
And consider server negotiated TLS1.3 indicating serverHello.supported_versions=0304, but ciphersuite select… Continue reading server negotiating TLS1.3 but sent TLS1.2 ciphersuite
I sent a client hello indicating TLS1.3 support, and it contains a list of all ciphersuites that support TLS1.3, TLS1.2 and TLS1.1
And consider server negotiated TLS1.3 indicating serverHello.supported_versions=0304, but ciphersuite select… Continue reading server negotiating TLS1.3 but sent TLS1.2 ciphersuite
I am having a Handshake session of PSK_only mode in TLS1.3 , where I use PSK’s established out of band.
consider, client Hello is sent with the extensions of supported_versions, PreSharedKey, psk_key_exchange_modes
Q1)If server sends a Hel… Continue reading In TLS1.3 can the client hello have the extensions which were not sent as part of HelloRetryRequest
Why is step 4 needed? What does it protect in terms of security? Doesn’t the protection arrives from the last step so when Va and Vb (so called TK, Temporary Keys) are compared?
Other thing: I read somewhere that Cb is sent immediately an… Continue reading Why is the "intermediate" challenge needed in Bluetooth ECDH since the "real" verification is performed at the end with code comparison?
I have a peripheral to which I am trying to connect over BLE. I do not have access to the internals of the peripheral, though I do know it is using a TI CC2540 chip for its BLE implementation (not sure if that matters.) I am having trouble… Continue reading What Kind of BLE Connection Handshake is This?
I’ve been trying to crack wifi wpa2 handshake using airodump-ng and aireplay-ng.
I’m using alfa awus-036acs adapter.
sudo airodump-ng wlan0
sudo airodump-ng –bssid MAC ADDR of AP –channel 1 -w capture wlan0
and (tried both)
sudo airep… Continue reading aireplay-ng –deauth never finds BSSID available
In a mTLS(2-way-TLS)-Setup, my client is not able to access the client private key directly, bit only the public key. However it is able to generate a valid signature for any input challenge(produced with the right private key) by calling … Continue reading Hook into Client-Side TLS-Handshake of Java
I am trying to see HTTPS traffic in wireshark from my local machine to public sites, just to see how the TLS handshake is made.
Why can’t I see the traffic as HTTP2 in filters and only able to see TLS traffic to port 443 and back to my ma… Continue reading Why Can’t I See Server Certificates in TLS Handshake Public Websites [closed]
In general, I understand that nonces are used to prevent replay attacks, but in the case of a TLS 1.3 handshake, the Client/Server Hello message contains their public keys. Considering that keys are randomized every time (as in the case of… Continue reading What purpose do nonces serve in the TLS 1.3 handshake?