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WireGuard uses only [7] UDP, [5] due to the potential disadvantages of TCP-over-TCP. [7] [11] [12] Tunneling TCP over a TCP-based connection is known as "TCP-over-TCP", and doing so can induce a dramatic loss in transmission performance due to the TCP meltdown problem. Its default server port is UDP 51820.
20] In this example, the sender of a message runs it through a MAC algorithm to produce a MAC data tag. The message and the MAC tag are then sent to the receiver. The receiver in turn runs the message portion of the transmission through the same MAC algorithm using the same key, producing a second MAC data tag.
The authenticator checks the response against its own calculation of the expected hash value. If the values match, the authenticator acknowledges the authentication; otherwise it should terminate the connection. In PPP, the authenticator may send a new challenge at random intervals to the peer and repeats steps 1 through 3.
Novell GroupWise clients in client/server access mode 1688: Unofficial: Microsoft Key Management Service (KMS) for Windows Activation [152] 1701 Yes: Layer 2 Forwarding Protocol (L2F) Assigned: Yes: Layer 2 Tunneling Protocol (L2TP) [11] 1707 Yes: Windward Studios games (vdmplay) Unofficial: L2TP/IPsec, for establishing an initial connection ...
This new version implements the original SSH Connection Protocol but operates on top of HTTP/3, which runs on QUIC. It offers multiple features such as: Faster session establishment, reducing the number of Round-trip delays from 5-7 to 3. High security: while SSHv2 relies on its own protocols, SSH3 leverages TLS 1.3, QUIC, and HTTP. UDP port ...
STUN (Session Traversal Utilities for NAT; originally Simple Traversal of User Datagram Protocol (UDP) through Network Address Translators) is a standardized set of methods, including a network protocol, for traversal of network address translator (NAT) gateways in applications of real-time voice, video, messaging, and other interactive communications.
In computing, a handshake is a signal between two devices or programs, used to, e.g., authenticate, coordinate. An example is the handshaking between a hypervisor and an application in a guest virtual machine .
In 2019 Eyal Ronen and Mathy Vanhoef (co-author of the KRACK attack) released an analysis of WPA3's Dragonfly handshake and found that "an attacker within range of a victim can still recover the password" and the bugs found "allow an adversary to impersonate any user, and thereby access the Wi-Fi network, without knowing the user's password."