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Signal between two devices or programs
In computing, a handshake is a process in which two devices establish a communication link by authenticating and validating each other's signals. An example
Handshake_(computing)
Topics referred to by the same term
employment company Handshake (computing), computer terms related to a signal between multiple computing devices or programs Handshake deal, another term for
Handshake_(disambiguation)
Principal protocol used to stream data across an IP network
connection based on agreed parameters; they do this through a three-way handshake procedure. The server must be listening (passive open) for connection
Transmission_Control_Protocol
Cryptographic protocols for securing data in transit
layer and is itself composed of two layers: the TLS record and the TLS handshake protocols. The closely-related Datagram Transport Layer Security (DTLS)
Transport_Layer_Security
Digital workload distribution techniques
In computing, load balancing is the process of distributing a set of tasks over a set of resources (computing units) with the aim of making their overall
Load_balancing_(computing)
Maximum rate of data transfer
In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth
Bandwidth_(computing)
Principal protocol used for transmission of datagrams across an IP network
different functions at the source and destination of the datagram. It has no handshaking dialogues and thus exposes the user's program to any unreliability of
User_Datagram_Protocol
Figurate number
words, the solution to the handshake problem of n people is Tn−1. Equivalently, a fully connected network of n computing devices requires the presence
Triangular_number
Every graph has evenly many odd vertices
In graph theory, the handshaking lemma is the statement that, in every finite undirected graph, the number of vertices that touch an odd number of edges
Handshaking_lemma
Set of algorithms that help secure a network connection
communicating machines to use is determined by the handshake process. Modifications were done in TLS 1.3 to the handshake process to cut down on the number of messages
Cipher_suite
Computer network protocol
protocol compatible with HTTP. To achieve compatibility, the WebSocket handshake uses the HTTP Upgrade header to change from the HTTP protocol to the WebSocket
WebSocket
Open-source TLS and cryptography library
inspect certificates, produce certificate-signing requests, test TLS handshakes, compute digests, encrypt and decrypt data, and perform certificate-authority
OpenSSL
Authentication protocol to validate users
In computing, the Challenge-Handshake Authentication Protocol (CHAP) is an authentication protocol originally used by Point-to-Point Protocol (PPP) to
Challenge-Handshake Authentication Protocol
Challenge-Handshake_Authentication_Protocol
This is a list of computing and IT acronyms, initialisms and abbreviations. 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z See also References
List of computing and IT abbreviations
List_of_computing_and_IT_abbreviations
Framework for cryptographic protocols
exchange. Developed by Trevor Perrin, the framework defines a series of handshake patterns—predefined sequences of message exchanges—that outline how parties
Noise_Protocol_Framework
characteristic – Hall effect – Hamming code – Hamming distance – Handoff – Handshake (computing) – Hard copy – Hardware register – Harmonic analysis – Harmonic oscillator
Index_of_electronics_articles
Network attack in which valid data transmission is repeated or delayed
store client credentials for later impersonation to the server. Challenge-Handshake Authentication Protocol (CHAP) secures against this sort of replay attack
Replay_attack
Graphical desktop-sharing system
VNC (Virtual Network Computing) is a graphical desktop-sharing system that uses the Remote Frame Buffer (RFB) protocol to remotely control another computer
VNC
Mechanism to allow software to execute a remote procedure
In distributed computing, a remote procedure call (RPC) is an action in which a computer program causes a procedure (subroutine) to execute in a different
Remote_procedure_call
Software suite
create a database of pre-computed hash tables by computing the Pairwise Master Keys (PMK) captured during the 4-way handshaking process. In WPA and WPA2
Aircrack-ng
Cryptography secured against quantum computers
quantum computing". phys.org. Heger, Monica (2009-01-01). "Cryptographers Take On Quantum Computers". IEEE Spectrum. "Q&A With Post-Quantum Computing Cryptography
Post-quantum_cryptography
Method of exchanging cryptographic keys
additional password authentication, see e.g. US patent "Advanced modular handshake for key agreement and optional authentication". X3DH was initially proposed
Diffie–Hellman_key_exchange
Typographic symbol (#)
in the URL https://en.wikipedia.org/wiki/Number_sign#Computing the portion after the # (Computing) is the fragment identifier, in this case denoting that
Number_sign
Security protocol for wireless computer networks
Access Point (AP) via an association request. This is followed by a 4-way handshake, a crucial step for ensuring both the client and AP have the correct Pre-Shared
Wi-Fi_Protected_Access
Suite of computer programs and protocols
session. The session has three distinct stages: Initial handshake File request(s) Final handshake On starting, uucico will respond by sending an identification
UUCP
Authentication and encryption system
by the client, and contains a handshake authenticator, similarly to the one in ServerFinished. Once both parties computed the session key (record protocol
ALTS
Concept in computer science, referring to processes, or data
synchronization is the task of coordinating multiple processes to join up or handshake at a certain point, in order to reach an agreement or commit to a certain
Synchronization (computer science)
Synchronization_(computer_science)
Digital circuit without clock cycles
the components are driven by a handshaking circuit which indicates a completion of a set of instructions. Handshaking works by simple data transfer protocols
Asynchronous_circuit
Type of parallel computing architecture of tightly coupled nodes
arrays compute in "lock-step" with each processor undertaking alternate compute | communicate phases. But systolic arrays with asynchronous handshake between
Systolic_array
Number of edges touching a vertex in a graph
This statement (as well as the degree sum formula) is known as the handshaking lemma. The latter name comes from a popular mathematical problem, which
Degree_(graph_theory)
remote method invocation (RMI) registry 1100 Unofficial SaltoSystems – Handshake for IP-Components 1112 Unofficial ESET virus updates 1113 Assigned Yes
List of TCP and UDP port numbers
List_of_TCP_and_UDP_port_numbers
Address Resolution Protocol ATM Asynchronous Transfer Mode CHAP Challenge Handshake Authentication Protocol CDP Cisco Discovery Protocol DCAP Data Link Switching
List of network protocols (OSI model)
List_of_network_protocols_(OSI_model)
Computer network multiple access method
protocols, Journal of Computing". arXiv:1003.4070 [cs.NI]. Kaixin Xu; Mario Gerla; Sang Bae. "How Effective is the IEEE 802.11 RTS/CTS Handshake in Ad Hoc Networks
Carrier-sense multiple access with collision avoidance
Carrier-sense_multiple_access_with_collision_avoidance
Connection tracking network security system
In computing, a stateful firewall is a network-based firewall that individually tracks sessions of network connections traversing it. Stateful packet
Stateful_firewall
Approximation for the travelling salesman problem
tree T of G. Let O be the set of vertices with odd degree in T. By the handshaking lemma, O has an even number of vertices. Find a minimum-weight perfect
Christofides_algorithm
Distributed protocol for telephony and instant messaging
relying on "homebrew crypto" developed by "non-experts" to facilitate handshakes. He also criticized some other design choices used by Tox developers as
Tox_(protocol)
Type of authentication protocol
attack. Mutual authentication is performed using a challenge–response handshake in both directions; the server ensures that the client knows the secret
Challenge–response authentication
Challenge–response_authentication
Computer network management and monitoring protocol
User-based Security Model (USM). SNMP does not use a more secure challenge-handshake authentication protocol. SNMPv3 (like other SNMP protocol versions) is
Simple Network Management Protocol
Simple_Network_Management_Protocol
Data structure in distributed computing
In distributed computing, a shared snapshot object is a type of data structure, which is shared between several threads or processes. For many tasks,
Shared_snapshot_objects
Type of cyber-attack
In computing, a denial-of-service attack (DoS attack /dɒs/ doss) is a cyberattack in which the perpetrator seeks to make a machine or network resource
Denial-of-service_attack
Network protocol
(IBTA). Network-intensive applications like networked storage or cluster computing need a network infrastructure with a high bandwidth and low latency. The
RDMA_over_Converged_Ethernet
Computer input/output device for users
professional computing series. Addison-Wesley. ISBN 978-0-13-142901-7. Rodgers, Ulka (1990). UNIX database management systems. Yourdon Press computing series
Computer_terminal
Free and open-source VPN protocol
The WireGuard protocol is a variant of the Noise Protocol Framework IK handshake pattern, as illustrated by the choice of Noise_IKpsk2_25519_ChaChaPoly_BLAKE2s
WireGuard
Decentralized social network
between each other using an Authenticated Key Exchange protocol, Secret Handshake. The reference implementation was written using Node.js, as code that
Secure_Scuttlebutt
Distributed data store for digital transactions
blockchains may be considered secure by design and exemplify a distributed computing system with high Byzantine fault tolerance. A blockchain was created by
Blockchain
Digital electronic system with no global clock signal
triggered by network packet arrival, changes (transitions) of signals, handshake protocols, and other methods. Asynchronous systems – much like object-oriented
Asynchronous_system
1982 home computer
1986, p. 256. Popular Computing Weekly 1983a, p. 1. Backhurst 1983b, p. 14. Popular Computing Weekly 1983c, p. 1. Popular Computing Weekly 1983d, p. 5.
ZX_Spectrum
Free URL data transfer client software
including h2c, prior-knowledge, dual-connect modes, and QUIC with 0-RTT handshakes. The library provides features such as cookie handling, standard HTTP
CURL
Problem of finding a cycle through all vertices of a graph
graphs in which all vertices have odd degree, an argument related to the handshaking lemma shows that the number of Hamiltonian cycles through any fixed edge
Hamiltonian_path_problem
Digital copy protection
original on 6 February 2007. Selter, Scott (10 November 2005). "HDCP "Handshake" A Big Problem For Many Legacy DVI-Based HDTVs". AVRev.com. Archived from
High-bandwidth Digital Content Protection
High-bandwidth_Digital_Content_Protection
Type of cryptographic protocol
access to this data emerged. It is possible to steal one's identity in the computing world - special verification methods were invented to find out whether
Authentication_protocol
Proprietary file sharing between Apple devices
deprecate AWDL in favor of the open Wi-Fi Aware standard. During the initial handshake, devices exchange full SHA-256 hashes of users' phone numbers and email
AirDrop
Data link layer communication protocol
established before LCP is able to configure it. RFC 1994 describes Challenge-Handshake Authentication Protocol (CHAP), which is preferred for establishing dial-up
Point-to-Point_Protocol
English entrepreneur and inventor (1940–2021)
TV80/FTV1". The Centre for Computing History. Retrieved 17 September 2021. Siddique, Haroon (16 September 2021). "Home computing pioneer Sir Clive Sinclair
Clive_Sinclair
Topics referred to by the same term
medicine Pairing, a handshaking process in Bluetooth communications Pair programming, an agile software development technique Pairing (computing), the linking
Pair
American period drama television series
fictional company Cardiff Electric makes its first foray into personal computing with a project to reverse engineer an IBM PC and build a clone, led by
Halt and Catch Fire (TV series)
Halt_and_Catch_Fire_(TV_series)
Numeric value with an unclear meaning
special, particular meaning that is less than clear to the reader. Also in computing, but not limited to programming, the term is used for a number that identifies
Magic_number_(programming)
Vital infrastructure of the networks of the Internet
from the original (PDF) on 2020-02-07. Kende, M. (2000). "The Digital Handshake: Connecting Internet Backbones". Journal of Communications Law & Policy
Internet_backbone
British politician (born 1933)
and Tindall, who had secured another coup by publishing Computing for the British Computing Society. BPC was in financial trouble in 1971, and Heseltine
Michael_Heseltine
Methods used to prevent access by bots
categorise the client by analysing the supported cipher suites during the SSL handshake. These fingerprints can be used to create whitelists/blacklists containing
Bot_prevention
Systems influencing emotions by touch
etc.) physical stimulation (e.g., tickling) social touch (e.g., hug, handshake) emotional haptic design (e.g., shape of device, material, texture). According
Affective_haptics
Physics phenomenon
1038/scientificamerican0309-32. PMID 19253771. Cramer, J. G. (2015). The Quantum Handshake: Entanglement, Nonlocality and Transactions. Springer Verlag. ISBN 978-3-319-24642-0
Quantum_entanglement
Model of concurrent computation
switching. Its development was "motivated by the prospect of highly parallel computing machines consisting of dozens, hundreds, or even thousands of independent
Actor_model
Proximity contact tracing protocol
tracking and logging close range encounters with other users (device handshake), and the reporting of those encounters such that other clients can determine
Decentralized Privacy-Preserving Proximity Tracing
Decentralized_Privacy-Preserving_Proximity_Tracing
Interpretation of quantum mechanics
(backward in time) waves that form a quantum interaction as a Wheeler–Feynman handshake or transaction. It was first proposed in 1986 by John G. Cramer, who argues
Transactional_interpretation
International SSD manufacturer from Irvine, California
These modules operate reliably in harsh, long-life computing environments and densely configured computing applications with limited airflow HyperCloud (industry's
Netlist,_Inc.
Practice in cryptography
0, with a computational overhead of approximately 15% for the initial handshake. The Signal Protocol uses the Double Ratchet Algorithm to provide forward
Forward_secrecy
Northern Irish snooker player (1949–2010)
Snooker". Centre for Computing History. Archived from the original on 16 June 2025. Retrieved 31 August 2025. "Spin-Off". Popular Computing Weekly. 18 July
Alex_Higgins
Set of agreed, stipulated, or generally accepted standards
of the hand faces sideways, neither upward nor downward, in a business handshake. Present business cards to each other, in business meetings (both-handed
Convention_(norm)
Privacy-focused encrypted messaging app
users or may involve group messaging. The application uses a centralized computing architecture and is cross-platform software. It is developed by the nonprofit
Signal_(software)
DNS evasion technique against origin server fingerprinting
domain names. An infected host repeatedly tries to initiate a flux-agent handshake by spontaneous generating, resolving and connecting to an IP address until
Fast_flux
Security bug
A successful attack will provide the session key for a captured TLS handshake. The investigators, who described the attack above as the general DROWN
DROWN_attack
Video compression method for HDMI and DisplayPort links
for decoders due to high computational complexity, negotiated at DSC handshake), and midpoint prediction. Bit rate control algorithm tracks color flatness
Display_Stream_Compression
Methods of reducing impact from distributed denial-of-service attacks
misusing communication protocol behavior. SYN floods exploit the TCP handshake by initiating multiple half-open connections, overwhelming the server's
DDoS_mitigation
Deprecated security algorithm for wireless networks
WEP key is used for authentication in a four-step challenge–response handshake: The client sends an authentication request to the access point. The access
Wired_Equivalent_Privacy
initialisms appear in IT career certification exams such as CompTIA A+. List of computing and IT abbreviations Lammle, Todd (2008). CCNA IOS Commands. Wiley Publishing
List of information technology initialisms
List_of_information_technology_initialisms
Method of externally opening ports on a firewall
within the knock sequence. The port "knock" itself is similar to a secret handshake and can consist of any number of TCP, UDP or even sometimes ICMP and other
Port_knocking
Wireless networking standard in development
within a physical device. Within an SMD, the context, i.e., the states of handshakes, sequence numbers, security keys, and capabilities, can be transferred
Wi-Fi_8
Computer expansion bus standard
detection and supports newer features like I/O virtualization for advanced computing needs. PCIe connections are made through lanes, which are pairs of conductors
PCI_Express
Computer network protocol
numbers do not clash. Clashing type numbers would cause confusion when handshaking a connection and break cross-compatibility between implementations. The
RFB_(protocol)
Communication between an information processing system and the outside world
In computing, input/output (I/O, i/o, or informally io or IO) is the communication between an information processing system, such as a computer, and the
Input/output
Standard for serial communication
teardown of a dial-up communication circuit; in particular, the use of handshake lines for flow control is not reliably implemented in many devices. No
RS-232
he managed to prove that a three way handshake was not enough and that you actually needed a five way handshake to make sure that everything was right
List_of_Internet_pioneers
American technology company
worked for the Bank of New Zealand, which had lent the company $15.5m on a handshake." Henry was replaced by Alessandro Sodi, who was then President. Henry
Diligent_Corporation
American computer scientist and microcomputer entrepreneur (1942–1994)
their vacation, and they negotiated further on the flight, reaching a handshake agreement. IBM main negotiator Jack Sams insisted that he never met Gary
Gary_Kildall
Punctuation mark (,)
space, as in this headline from Reuters: Trump, Macron engage in a little handshake diplomacy. Commas are often used to separate clauses. In English, a comma
Comma
Protocol to manage public key certificates
to Encrypt the Entire Web" (PDF). ACM Digital Library. Association for Computing Machinery. doi:10.1145/3319535.3363192. Retrieved 25 February 2026. Zakir
Automatic Certificate Management Environment
Automatic_Certificate_Management_Environment
Software company based in Santa Cruz, California
Work-Group Computing Report. March 11, 1991. p. 33 – via Gale General OneFile. "Industry News: Familiar Software Migrates to Unix". Computing News. University
Santa_Cruz_Operation
distributions that have highly modified kernels — for example, real-time computing kernels — should be listed separately. There are also a wide variety of
Comparison of operating system kernels
Comparison_of_operating_system_kernels
Transmission Control Protocol technology
another). Subflows are identified during the TCP three-way handshake. After the handshake, an application can add or remove some subflows (subtypes 0x3
Multipath_TCP
Educational philosophy
traditions, the role of ritual and routine (e.g. welcoming students with a handshake, the use of opening and closing verses, and yearly festivals), the role
Waldorf_education
Intentional sharing of corrupted or malicious data in torrent programs
attacker establishes connection with targeted peers via the required handshake message, followed by a message advertising that they have a number of
Torrent_poisoning
1977 play by Mike Leigh
much, as his wife points out on several occasions. He considers a brisk handshake to be correct etiquette after a dance. While Laurence starts off behaving
Abigail's_Party
Communication interface transmitting information sequentially
serial lines often incorporate a handshaking method. There are hardware and software handshaking methods. Hardware handshaking is done with extra signals,
Serial_port
Logical formulation of graph properties
Martin (2001), "Computing crossing numbers in quadratic time", Proceedings of the Thirty-Third Annual ACM Symposium on Theory of Computing (STOC '01), pp
Logic_of_graphs
Transmission of information
like handshakes, holding hands, kissing, or slapping. Meanings linked to haptics include care, concern, anger, and violence. For instance, handshaking is
Communication
Decade of the Gregorian calendar (2020–2029)
coherent sentences. Cloud computing has surged in popularity following and during the global pandemic of 2020. Cloud computing allows for data to be stored
2020s
Private equity firm
Naval Academy, Jackson T. "Jack" Stephens joined his brother, and, with a handshake, the two brothers formed Stephens, Inc., and a partnership that lasted
Stephens_Inc.
tariffs on a narrow range of semiconductor imports, primarily advanced computing chips, including the Nvidia H200 and the AMD MI325X, with the exemption
Tariffs in the second Trump administration
Tariffs_in_the_second_Trump_administration
acknowledge it, allowing the sender to remove the data, thus completing the handshake, and allowing another datum to be transmitted. In a delay-insensitive
Delay_insensitive_circuit
HANDSHAKE COMPUTING
HANDSHAKE COMPUTING
HANDSHAKE COMPUTING
Boy/Male
Indian, Sanskrit
Light; Splendour
Boy/Male
Australian, Danish, Finnish, German, Swedish
Hill; Mount; Brave Like a Bear
Girl/Female
Indian, Tamil
Blessing from God; Cute; Blessing
Boy/Male
Christian, Danish, Finnish, German
Great; God is with us
Boy/Male
Hindu, Indian, Marathi
Lord Krishna
Girl/Female
Arabic, Muslim
Free Woman
Surname or Lastname
English
English : ethnic name from Old French Lohereng ‘man from Lorraine’ (see Lorraine).
Girl/Female
Indian
Firm
Girl/Female
Hindu
Glowing flower
Girl/Female
Muslim
One with round face
HANDSHAKE COMPUTING
HANDSHAKE COMPUTING
HANDSHAKE COMPUTING
HANDSHAKE COMPUTING
HANDSHAKE COMPUTING
v. i.
To make an enumeration or computation; to engage in numbering or computing.
n.
A bar or lever, generally of wood, used in a windlass or capstan, for heaving anchor, and, in modified forms, for various purposes.
n.
The act or process of computing; calculation; reckoning.
n.
A contrivance for computing the revolutions of a wheel; an odometer.
n.
A significant shake of the head, commonly as a signal of denial.
n.
An instrument for measuring the intensity of the photogenic (light-producing) rays, and computing the power of object glasses.
p. p. & a.
Worked out by calculation; as calculated tables for computing interest; ascertained or conjectured as a result of calculation; as, the calculated place of a planet; the calculated velocity of a cannon ball.
n.
A system of numbers, whose denominations rise in a scale of twelves, as of feet and inches. The system is used chiefly by artificers in computing the superficial and solid contents of their work.
n.
An arbitrary fixed date, for which the elements used in computing the place of a planet, or other heavenly body, at any other date, are given; as, the epoch of Mars; lunar elements for the epoch March 1st, 1860.
n.
The computing official of an insurance company; one whose profession it is to calculate for insurance companies the risks and premiums for life, fire, and other insurances.
p. pr. & vb. n.
of Compute
n.
One of the ten figures or symbols, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, by which all numbers are expressed; -- so called because of the use of the fingers in counting and computing.
n.
A quantity to be applied in computing the mean place or other element of a celestial body; that is, any one of the several quantities to be added to, or taken from, its position as calculated on the hypothesis of a mean uniform motion, in order to find its true position as resulting from its actual and unequal motion.
n.
The art of measuring and computing the cubical contents of bodies and figures; -- distinguished from planimetry.