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Encryption of network traffic for security
Link encryption is an approach to communications security that encrypts and decrypts all network traffic at each network routing point (e.g. network switch
Link_encryption
Process of converting plaintext to ciphertext
In cryptography, encryption (more specifically, encoding) is the process of transforming information in a way that, ideally, only authorized parties can
Encryption
Secure communications method
End-to-end encryption (E2EE) is a method of implementing a secure communication system where only the sender and intended recipient can read the messages
End-to-end_encryption
Form of encryption that allows computation on ciphertexts
Homomorphic encryption is a form of encryption that allows computations to be performed on encrypted data without first having to decrypt it. The resulting
Homomorphic_encryption
Algorithm
algorithms for cryptography that use the same cryptographic keys for both the encryption of plaintext and the decryption of ciphertext. The keys may be identical
Symmetric-key_algorithm
Encryption techniques where an adversary cannot prove that the plaintext data exists
In cryptography and steganography, plausibly deniable encryption describes encryption techniques where the existence of an encrypted file or message is
Deniable_encryption
Cryptographic system with public and private keys
Diffie–Hellman key exchange, public-key key encapsulation, and public-key encryption. Public key algorithms are fundamental security primitives in modern cryptosystems
Public-key_cryptography
Version history of the Linux kernel
PCI-SIG". pcisig.com. Retrieved 31 May 2026. "Linux 6.19 Introduces PCIe Link Encryption & Device Authentication, AMD SEV-TIO Enabling". www.phoronix.com. Retrieved
Linux_kernel_version_history
Standard for the encryption of electronic data
The Advanced Encryption Standard (AES), also known by its original name Rijndael (Dutch pronunciation: [ˈrɛindaːl], RAIN-dahl), is a specification for
Advanced_Encryption_Standard
Data security technology
Disk encryption is a technology which protects information by converting it into code that cannot be deciphered easily by unauthorized people or processes
Disk_encryption
Aspect of US National Security Agency
National Security Agency took over responsibility for all US government encryption systems when it was formed in 1952. The technical details of most NSA-approved
NSA_encryption_systems
Cryptography practises of the USA's National Security Agency
The vast majority of the National Security Agency's work on encryption is classified, but from time to time NSA participates in standards processes or
NSA_cryptography
Early unclassified symmetric-key block cipher
The Data Encryption Standard (DES /ˌdiːˌiːˈɛs, dɛz/) is a symmetric-key algorithm for the encryption of digital data. Although its short key length of
Data_Encryption_Standard
distribution center (KDC) Key management Key stream KSD-64 Link encryption MISTY1 Multiplex link encryption Net control station (NCS) Null cipher One-time pad
List of telecommunications encryption terms
List_of_telecommunications_encryption_terms
Process in which digital operating systems attempt to encrypt communications channels
Opportunistic encryption (OE) refers to any system that, when connecting to another system, attempts to encrypt communications channels, otherwise falling
Opportunistic_encryption
Framework for decentralized, peer-to-peer networking which is part of the GNU Project
peer-to-peer networking and an official GNU package. The framework offers link encryption, peer discovery, resource allocation, communication over many transports
GNUnet
This is a technical feature comparison of different disk encryption software. Hidden containers: Whether hidden containers (an encrypted container (A)
Comparison of disk encryption software
Comparison_of_disk_encryption_software
Disk encryption is a special case of data at rest protection when the storage medium is a sector-addressable device (e.g., a hard disk). This article presents
Disk_encryption_theory
End-to-end encrypted email service
Proton Wallet, Proton Meet, and Lumo AI. Proton Mail uses client-side encryption to protect email content and user data before they are sent to Proton
Proton_Mail
Algorithm for encrypting and decrypting information
In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a
Cipher
HTTP extension supporting TLS encryption
(HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It uses encryption for secure communication over a computer network, and is widely used on
HTTPS
Cryptography algorithm
itself is only suitable for the secure cryptographic transformation (encryption or decryption) of one fixed-length group of bits called a block. A mode
Block cipher mode of operation
Block_cipher_mode_of_operation
IETF standard for encrypted data
JSON Web Encryption (JWE) is an IETF standard providing a standardized syntax for the exchange of encrypted data, based on JSON and Base64. It is defined
JSON_Web_Encryption
Term applied to cryptographic systems that are highly resistant to cryptanalysis
dealing with export control of encryption, considered as of 1999[update] any implementation of the symmetric encryption algorithm with the key length above
Strong_cryptography
Simple and widely known encryption technique
A Caesar cipher is one of the simplest and most widely known encryption techniques used in cryptography. It is a type of substitution cipher in which each
Caesar_cipher
Discontinued source-available disk encryption utility
a discontinued source-available freeware utility used for on-the-fly encryption (OTFE). It can create a virtual encrypted disk within a file, encrypt
TrueCrypt
Malicious software used in ransom demands
implementation mistakes, leaked cryptographic keys or a complete lack of encryption in the ransomware. Ransomware attacks are typically carried out using
Ransomware
Transfer from the United States to another country of technology related to cryptography
period the market for cryptography was almost entirely military, the encryption technology (techniques as well as equipment and, after computers began
Export of cryptography from the United States
Export_of_cryptography_from_the_United_States
Means of compromising computer security by restarting the computer
target machine. Typically, cold boot attacks are used for retrieving encryption keys from a running operating system for malicious or criminal investigative
Cold_boot_attack
Practice and study of secure communication techniques
Cryptography prior to the modern age was effectively synonymous with encryption, converting readable information (plaintext) to unintelligible nonsense
Cryptography
Messaging and VoIP service owned by Meta
criticized for its lack of encryption, sending information as plaintext. Encryption was first added in May 2012. End-to-end encryption was only fully implemented
Cryptography secured against quantum computers
older NTRU or GGH encryption schemes, and the newer NTRU signature and BLISS signatures. Some of these schemes like NTRU encryption have been studied
Post-quantum_cryptography
Authenticated encryption with associated data algorithm
ChaCha20-Poly1305 is an authenticated encryption with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message
ChaCha20-Poly1305
Number of bits in a key used by a cryptographic algorithm
therefore, be large enough that a brute-force attack (possible against any encryption algorithm) is infeasible – i.e. would take too long and/or would take
Key_size
Family of archive file formats
DES, RC2, RC4 supported for encryption (not published online until the publication of APPNOTE 5.2) 5.2: (2003) AES encryption support for SES (defined in
ZIP_(file_format)
Cryptographic hardware
Hardware-based full disk encryption (FDE) is available from many hard disk drive (HDD/SSD) vendors, including Kingston Technology, Integral Memory, iStorage
Hardware-based full disk encryption
Hardware-based_full_disk_encryption
Encryption methods for TV programs
Broadcast encryption is the cryptographic problem of delivering encrypted content (e.g. TV programs or data on DVDs) over a broadcast channel in such a
Broadcast_encryption
Attempts to limit access to strong cryptography
following WWII the market for cryptography was almost entirely military, encryption technology (techniques as well as equipment and, after computers became
Crypto_Wars
Used for encoding or decoding ciphertext
for utilizing keys and encryption. Symmetric cryptography refers to the practice of the same key being used for both encryption and decryption. Asymmetric
Key_(cryptography)
Encrypted information
In cryptography, ciphertext or cyphertext is the result of encryption performed on plaintext using an algorithm, called a cipher. Ciphertext is also known
Ciphertext
Approach to public-key cryptography
tasks. Indirectly, they can be used for encryption by combining the key agreement with a symmetric encryption scheme. They are also used in several integer
Elliptic-curve_cryptography
Videoconferencing software
end-to-end encryption to business and enterprise users, with AES 256 GCM encryption enabled for all users. In October 2020, Zoom added end-to-end encryption for
Zoom_(software)
what might be called classical cryptography — that is, of methods of encryption that use pen and paper, or perhaps simple mechanical aids. In the early
History_of_cryptography
Free and open-source disk encryption utility
VeraCrypt is a free and open-source utility for on-the-fly encryption (OTFE). The software can create a virtual encrypted disk that works just like a regular
VeraCrypt
services “KVH and Ciena Complete Successful 10 Gigabit Ethernet Wirespeed Link Encryption Trial for the First Time in Japan”, July 27, 2011, MarketWatch, http://www
KVH_Co._Ltd.
Consortium of major motion picture studios
SMPTE 428, 429, 430, 431, 432, and 433 Document Suites • ST 427:2009 Link Encryption for 1.5 Gb/s Serial Digital Interface • ST 428-1:2019 Image Characteristics
Digital_Cinema_Initiatives
2015–2016 public relations and legal dispute
The Apple–FBI encryption dispute concerns whether and to what extent courts in the United States can compel manufacturers to assist in unlocking cell phones
Apple–FBI_encryption_dispute
Cryptographic protocols for securing data in transit
authenticated encryption ciphers, used mainly for Galois/Counter Mode (GCM) and CCM mode of Advanced Encryption Standard (AES) encryption. TLS Extensions
Transport_Layer_Security
Surveillance strategy
of developments in quantum computing which would allow current strong encryption algorithms to be broken at some time in the future, making it possible
Harvest_now,_decrypt_later
UK law to regulate online content
the UK market rather than weaken their encryption. Nevertheless, the provisions pertaining to end-to-end encryption weakening were not removed from the Act
Online_Safety_Act_2023
Block cipher
In cryptography, the Tiny Encryption Algorithm (TEA) is a block cipher notable for its simplicity of description and implementation, typically a few lines
Tiny_Encryption_Algorithm
Proxy re-encryption (PRE) schemes are cryptosystems which allow third parties (proxies) to alter a ciphertext which has been encrypted for one party, so
Proxy_re-encryption
Networking protocol for real-time communication
archived copy as title (link) "Independent public audit of Vodozemac, a native Rust reference implementation of Matrix end-to-end encryption". Matrix blog. Alex
Matrix_(protocol)
protected by encryption or other means so that it can be distributed without fear of its being stolen. Also called BLACK key. Content-encryption key (CEK)
Glossary of cryptographic keys
Glossary_of_cryptographic_keys
Privacy-focused encrypted messaging app
Android in 2023, the app now secures all communications with end-to-end encryption. The client software includes mechanisms by which users can independently
Signal_(software)
Defunct Swiss cryptography company
headquarters in Steinhausen, the company was a long-established manufacturer of encryption machines and a wide variety of cipher devices. The company had about 230
Crypto_AG
IEEE network security standard
default cipher suite of GCM-AES-128 (Galois/Counter Mode of Advanced Encryption Standard cipher with 128-bit key) GCM-AES-256 using a 256 bit key was
IEEE_802.1AE
Encryption technique
The one-time pad (OTP) is an encryption technique that cannot be cracked in cryptography. It requires the use of a single-use pre-shared key that is larger
One-time_pad
Legislation that requires individuals to surrender cryptographic keys to law enforcement
telecommunications carriers, certification providers, or maintainers of encryption services to provide assistance with decryption. In all cases, a warrant
Key_disclosure_law
Hash function that is suitable for use in cryptography
functions. For example, a CRC was used for message integrity in the WEP encryption standard, but an attack was readily discovered, which exploited the linearity
Cryptographic_hash_function
Non-federated cryptographic protocol
Protocol) is a non-federated cryptographic protocol that provides end-to-end encryption for voice and instant messaging conversations. The protocol was developed
Signal_Protocol
Identity-based conditional proxy re-encryption (IBCPRE) is a type of proxy re-encryption (PRE) scheme in the identity-based public key cryptographic setting
Identity-based conditional proxy re-encryption
Identity-based_conditional_proxy_re-encryption
Method of exchanging cryptographic keys
replay-attacks. ephemeral, static: For example, used in ElGamal encryption or Integrated Encryption Scheme (IES). If used in key agreement it could provide implicit
Diffie–Hellman_key_exchange
Data link layer communication protocol
between. It can provide loop detection, authentication, transmission encryption, and data compression. PPP is used over many types of physical networks
Point-to-Point_Protocol
Secure network protocol suite
experimental ARPANET encryption devices, at first for native ARPANET packet encryption and subsequently for TCP/IP packet encryption; some of these were
IPsec
Cryptanalytic method for unauthorized users to access data
correctly. This strategy can theoretically be used to break any form of encryption that is not information-theoretically secure. However, in a properly designed
Brute-force_attack
Adi Shamir • Advanced Access Content System • Advanced Encryption Standard • Advanced Encryption Standard process • Adversary • AEAD block cipher modes
Index of cryptography articles
Index_of_cryptography_articles
Topics referred to by the same term
Encrypted filesystem may refer to: Filesystem-level encryption, a form of disk encryption where individual files or directories are encrypted by the file
Encrypted_filesystem
Process of intercepting and examining messages
not traffic is being transmitted. This is also called "masking" or "link encryption." Traffic-flow security is one aspect of communications security. The
Traffic_analysis
Free and open-source virtual private network software
client, using signatures and certificate authority. It uses the OpenSSL encryption library extensively, as well as the TLS protocol, and contains many security
OpenVPN
NATO computer network standard
no Electronic countermeasure (ECM) resistance and insufficient encryption. Although Link 1 became obsolete, it is still in operation.[when?] Allied Data
Link_1
Open source encrypted chat application
online chatting available for Windows, OS X, and Linux. It uses end-to-end encryption to secure all communications to other Cryptocat users. Users are given
Cryptocat
Swiss technology company
company would never build an encryption backdoor, and that it wouldn't open a "front door" either by removing end-to-end encryption. In March 2025, the company
Proton_AG
Social media platform owned by Meta
end-to-end encryption in Instagram direct messaging in May 2026. Following this change, messages are no longer protected by end-to-end encryption and are
Multicast encryption is the use of encryption to ensure that only the chosen recipient(s) has access to multicast data. Multicast is what enables a node
Multicast_encryption
Technique for anonymous communication over a computer network
network. In an onion network, messages are encapsulated in layers of encryption, analogous to the layers of an onion. The encrypted data is transmitted
Onion_routing
Messaging protocol
attendees from Wire, Mozilla and Cisco. Initial ideas were based on pairwise encryption for secure 1:1 and group communication. In 2017, an academic paper introducing
Messaging_Layer_Security
Privacy-focused encrypted messaging app
the stated goal of demonstrating a new type of mix network encryption scheme. The encryption scheme, known as PrivaTegrity, was described by Chaum and
Xx_messenger
European standard for trunked radio systems
versa. For protection against eavesdropping, air interface encryption and end-to-end encryption is available. The common mode of operation is in a group
TETRA
Feature in Microsoft Windows
feature introduced in version 3.0 of NTFS that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect
Encrypting_File_System
Topics referred to by the same term
refers to: Advanced Encryption Standard, or Rijndael, a specification for the encryption of electronic data Advanced Encryption Standard process, the
AES
Computer networking protocol
It uses encryption ('hiding') only for its own control messages (using an optional pre-shared secret), and does not provide any encryption or confidentiality
Layer_2_Tunneling_Protocol
Measure of cryptographic strength
February 2003). "Helix: Fast Encryption and Authentication in a Single Cryptographic Primitive" (PDF). Fast Software Encryption. Lecture Notes in Computer
Security_level
Module used to load cryptographic keys into encryption machines
electronic encryption machines. Fill devices are usually hand held and electronic ones are battery operated. Older mechanical encryption systems, such
Fill_device
Radio standard
internet-linked DMR networks include the World Wide Check-In, a weekly international net operating on Talk Group 91 of the BrandMeister network. Encryption was
Digital_mobile_radio
German email service
TLS. Since August 2013, Posteo has supported Perfect Forward Secrecy encryption, both for its own connections and for transmissions to other providers—at
Posteo
Standard for content distribution and digital rights management
It encrypts content under one or more title keys using the Advanced Encryption Standard (AES). Title keys are decrypted using a media key (encoded in
Advanced Access Content System
Advanced_Access_Content_System
Instruction set extensions accelerating AES operations
Advanced Encryption Standard instruction set (AES instruction set) is a set of instructions that are specifically designed to perform AES encryption and decryption
AES_instruction_set
Free online crowdsourced encyclopedia
China since May 2015. This was done after Wikipedia started to use HTTPS encryption, which made selective censorship more difficult. In 2017–18, after a barrage
Wikipedia
Concept in data security
breach of 2013, cardholder data encryption must take place prior to card data entering the POS and not after. Encryption takes place within the confines
Tokenization_(data_security)
Free and open-source file encryption software
Cryptomator is open source encryption software that provides encryption for cloud drives. It provides transparent, client-side encryption for personal cloud storage
Cryptomator
Network that allows computers to share resources and communicate with each other
communications. End-to-end encryption generally protects both confidentiality and integrity. Examples of end-to-end encryption include HTTPS for web traffic
Computer_network
Block cipher
In cryptography, the Cellular Message Encryption Algorithm (CMEA) is a block cipher which was used for securing mobile phones in the United States. CMEA
Cellular Message Encryption Algorithm
Cellular_Message_Encryption_Algorithm
Extension of a private network across a public one
network across a public network, such as the Internet, via the use of encryption and tunneling protocols. In a VPN, a tunneling protocol is used to transfer
Virtual_private_network
American software company
software company that provides discovery, classification, masking and encryption software, along with data compression software. The company is headquartered
PKWare
Stream cipher
the NATO signal intelligence agencies in the mid-1980s over whether GSM encryption should be strong or not. The Germans said it should be, as they shared
A5/1
Mobile communication protocol based on mobile service
Google Messages or via Microsoft Phone Link. Google Messages was the first client to offer end-to-end encryption (E2EE) over RCS. E2EE using Messaging
Rich_Communication_Services
Type of standardized secure cryptoprocessors
from a trusted combination of hardware and software and storing disk encryption keys. A TPM 2.0 implementation is part of the Windows 11 system requirements
Trusted_Platform_Module
Block cipher
sizes up to 256 bits. It was one of the five finalists of the Advanced Encryption Standard contest, but it was not selected for standardization. Twofish
Twofish
American entrepreneur
of Signal Messenger LLC. He is also a co-author of the Signal Protocol encryption used by Signal, WhatsApp, Google Messages, Facebook Messenger, and Skype
Moxie_Marlinspike
LINK ENCRYPTION
LINK ENCRYPTION
Surname or Lastname
English (mainly East Anglia)
English (mainly East Anglia) : habitational name from Lyng in Norfolk, so named from Old English hlinc ‘hillside’, or from either of two places in Norfolk and Lincolnshire named Ling, from Old Norse lyng ‘ling’, ‘heather’. There is also a Lyng in Somerset, so named from Old English lengen ‘long place’.German : variant of Link.Chinese : from a word meaning ‘ice’. In ancient times, the imperial palace was able to enjoy ice in the summer by storing winter ice in a cellar, entrusting its care to an official called the iceman. This post was once filled during the Zhou dynasty (1122–221 bc) by a descendant of Kang Shu, the eighth son of Wen Wang, who had been granted the state of Wei soon after the establishment of the Zhou dynasty. Descendants of this particular iceman adopted the word for ice, ling, as their surname.
Female
Hindi/Indian
(लीना) Hindi name LINA means "absorbed in; merged." Compare with other forms of Lina.
Boy/Male
American, Arabic, Australian, British, Chinese, English, Japanese, Latin
Lake Colony; From the Bank; From the Town by the Pool
Surname or Lastname
German
German : from Middle High German lins(e) ‘lentil’, presumably a metonymic occupational nickname for a grower of lentils.German : from a short form of a Germanic personal name formed with Old High German lint ‘snake’ or linta ‘linden tree’, ‘shield’.English (Staffordshire) : unexplained. Possibly a variant of Lynes.Latvian : possibly from lins ‘flax’.
Surname or Lastname
English
English : variant of Finch.German (Rhineland) : variant of Fink.
Boy/Male
English
From the bank.
Male
Italian
Italian and Spanish form of Latin Linus, LINO means either "a cry of grief"Â or "flax, linen."
Female
Vietnamese
Vietnamese name LINH means "spring."
Female
Welsh
 Welsh name LINN means "lake" or "waterfall." Compare with other forms of Linn.
Surname or Lastname
English
English : from the medieval female personal name Line, a reduced form of Cateline (see Catlin) and of various other names, such as Emmeline and Adeline, containing the Anglo-Norman French diminutive suffix -line (originally a double diminutive, composed of the elements -el and -in).French (Liné) : metonymic occupational name for a linen weaver or a linen merchant, from an Old French adjective liné ‘made of linen’.
Surname or Lastname
English
English : metonymic occupational name for a dresser of flax, from Middle English lynet, lynt ‘flax’.Dutch : from a short form of a Germanic name formed with lind (see Linde 1).Dutch : metonymic occupational name for a linen weaver or merchant.
Female
French
French feminine form of Roman Cælinus, CÉLINE means "heaven."
Female
Swedish
 Short form of Swedish Linnéa, LINN means "twin flower." Compare with other forms of Linn.
Boy/Male
Hindu, Indian
Link
Surname or Lastname
English
English : topographic name for someone living by a bink, a northern dialect term for a flat raised bank of earth or a shelf of flat stone suitable for sitting on. The word is a northern form of modern English bench.Variant of Polish Binek, itself a variant of Bieniek.
Male
Hungarian
Hungarian form of Latin Valentinus, BÃLINT means "healthy, strong."
Girl/Female
Arabic, Muslim
Bond; Link Nexus
Female
Welsh
 Variant spelling of Welsh Linn, LIN means "lake" or "waterfall." Compare with another form of Lin.
Surname or Lastname
English
English : nickname, possibly for a small person, from Middle English pink, penk ‘minnow’ (Old English pinc).English (southeastern) : variant of Pinch.Variant spelling of German Pinck, an indirect occupational name for a blacksmith, an onomatopoeic word imitating the sound of hammering which was perceived as pink(e)pank.German (of Slavic origin) : from a diminutive of Sorbian pien ‘log’, ‘tree stump’, hence probably a nickname for a solid or stubby person.
Female
English
 English short form of Latin Linnaea, LINN means "twin flower." Compare with other forms of Linn.
LINK ENCRYPTION
LINK ENCRYPTION
Biblical
thy basket; thy lifting up
Boy/Male
Australian, Indonesian
Good
Girl/Female
Hindu, Indian, Malayalam
Goddess Saraswati
Boy/Male
Arabic
Word
Boy/Male
Celtic
Battle.
Boy/Male
Tamil
Kanagarajan | காநாகராஜநÂ
Origin of everything
Girl/Female
Hindu
Selfless
Boy/Male
Hindu, Indian
Boiled or Baked Buckwheat; Section
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi, Sikh, Telugu
The Moon
Male
Spanish
Spanish form of Latin Adrianus, ADRIÃN means "from Hadria."
LINK ENCRYPTION
LINK ENCRYPTION
LINK ENCRYPTION
LINK ENCRYPTION
LINK ENCRYPTION
v. t.
To cause (the eyes) to wink.
n.
A hole or low place in land or rock, where waters sink and are lost; -- called also sink hole.
v. t.
To read or repeat line by line; as, to line out a hymn.
v. t.
To make (a depression) by digging, delving, or cutting, etc.; as, to sink a pit or a well; to sink a die.
v. i.
To wink; to blink.
n.
Anything doubled and closed like a link; as, a link of horsehair.
v. t.
To cause to sink; to put under water; to immerse or submerge in a fluid; as, to sink a ship.
n.
A series or succession of ancestors or descendants of a given person; a family or race; as, the ascending or descending line; the line of descent; the male line; a line of kings.
a.
Produced prematurely; as, a slink calf.
v. i. & t.
To become lank; to make lank.
v. t.
To connect or unite with a link or as with a link; to join; to attach; to unite; to couple.
v. t.
To form into a line; to align; as, to line troops.
n.
A measuring line or cord.
n.
The equator; -- usually called the line, or equinoctial line; as, to cross the line.
v. t.
To put ink upon; to supply with ink; to blacken, color, or daub with ink.
a.
Resembling the garden pink in color; of the color called pink (see 6th Pink, 2); as, a pink dress; pink ribbons.
n.
Direction; as, the line of sight or vision.
n.
A connected series of public conveyances, and hence, an established arrangement for forwarding merchandise, etc.; as, a line of stages; an express line.
v. t.
To mark with a line or lines; to cover with lines; as, to line a copy book.
n.
A straight row; a continued series or rank; as, a line of houses, or of soldiers; a line of barriers.