|Data Encryption & Cryptography Glossary|
- A block cipher a type of symmetric-key encryption algorithm that transforms a fixed-length block of plaintext (unencrypted text) data into a block of ciphertext (encrypted text) data of the same length.
- Блочный шифр
- A cipher algorithm that encrypts data in discrete units (called blocks), rather than as a continuous stream of bits. the most common block size is 64 bits. for example, des is a block cipher.
- Pulley used in wire rope logging to change direction or increase pulling power (24).
- Последовательность передаваемых данных, рассматриваемая как завершенная и отдельная сущность. обычно имеет адрес, управляющее поле и контрольную сумму, позволяющую обнаруживать ошибки
- A block is a piece of wood used as a matrix for a print. these blocks are mainly used for wood engravings or wood cuts.
- Блок; этап (маршрутного полета)
- (колесная) колодка
- Angular chunk of solid rock ejected during a volcanic eruption.
- A pulley or set of pulleys.
- A group of bits, or characters, transmitted as a unit. an encoding procedure is generally applied to the group of bits or characters for error control purposes.
- Тормозная колодка, блок, шкив
- A concrete masonry unit having solid rectangular end faces as well as solid rectangular side faces. double corner block 325 double corner block double-crib barn
- 1. the stopping of a function 2. something which obstructs 3. a large piece of something a block of wood fell on his foot. 4. a period of time the training is in two three-hour blocks. 5. one of the different buildings forming a section of a hospital the patient is in block 2, ward 7. she is having treatment in the physiotherapy block. verb to fill the space in something and stop other things passing through it the artery was blocked by a clot. he swallowed a piece of plastic which blocked his oesophagus.
- A block is a package of data that contains zero or more transactions, the hash of the previous block ("parent"), and optionally other data. because each block (except for the initial "genesis block") points to the previous block, the data structure that they form is called a "blockchain".
- Блок: в филейном вязании - заполненная кокетка
- A pulley on a boat.
- (in mechanics termed a pulley.) blocks are flattish oval pieces of wood, with sheaves in them, for all the running ropes to run in. they are used for various purposes in a ship, either to increase the mechanical power of the ropes, or to arrange the ends of them in certain places on the deck, that they may be readily found when wanted; they are consequently of various sizes and powers, and obtain various names, according to their form or situation, thus:—a single block contains only one sheave or wheel. a double block has two sheaves. a treble or threefold block, three, and so on. a long-tackle or fiddle-block has two sheaves—one below the other, like a fiddle. cistern or sister block for top-sail lifts and reef tackles. every block is composed of three, and generally four, parts:—(1.) the shell, or outside wooden part. (2.) the sheave, or wheel, on which the rope runs. (3.) the pin, or axle, on which the sheave turns. (4.) the strop, or part by which the block is made fast to any particular station, and is usually made either of rope or of iron. blocks are named and distinguished by the ropes which they carry, and the uses they serve for, as bowlines, braces, clue-lines, halliards, &c. &c. they are either made or morticed (which see).
- The large piece of elm out of which the figure is carved at the head of the ship.
- A pulley, or multiple pulleys, mounted in a case.
- The wedging of core or core fragments or the impaction of cuttings inside a bit or core barrel, which prevents further entry of core into the core barrel, thereby producing a condition wherein drilling must be discontinued and the core barrel pulled and emptied to forestall loss of core through grinding or the serious damage of the bit or core barrel. also called core block. see also grind
- An obstruction in a borehole.
- A grooved pulley or sheave encased in a frame or shell, which is provided with a hook, eye, clevis, or strap by which it may be attached to an object.
- A wooden or metal case enclosing one or more pulleys and havingahook, eye, or strap by which it may be attached.
- One or more wheels with grooves in them (pulleys) designed to carry a line and change the direction of its travel. a housing around the wheel allows the block to be connected to a spar, or another line. lines used with a block are known as tackle.
Block (data), английский
Block (of houses), английский
Block (on claim form), английский
Block (on the bitcoin blockchain), английский
Data is permanently recorded in the bitcoin network through files called blocks. a block is a record of some or all of the most recent bitcoin transactions that have not yet been recorded in any prior blocks. new blocks are added to the end of the record (known as the blockchain), and can never be changed or removed once written (although some software will remove them if they are orphaned). each block memorializes what took place in the minutes before it was created. each block contains a record of some or all recent transactions and a reference to the block that came immediately before it. it also contains an answer to a difficult-to-solve mathematical puzzle – the answer to which is unique to each block. new blocks cannot be submitted to the network without the correct answer – the process of “mining” is essentially the process of competing to be the next to find the answer that “solves” the current block. the mathematical problem in each block is extremely difficult to solve, but once a valid solution is found, it is very easy for the rest of the network to confirm that the solution is correct. there are multiple valid solutions for any given block – only one of the solutions needs to be found for the block to be solved. because there is a reward of brand new bitcoins for solving each block, every block also contains a record of which bitcoin addresses or scripts are entitled to receive the reward. this record is known as a generation transaction, or a coinbase transaction, and is always the first transaction appearing in every block. the number of bitcoins generated per block starts at 50 and is halved every 210,000 blocks (about four years). bitcoin transactions are broadcast to the network by the sender, and all peers trying to solve blocks collect the transaction records and add them to the block they are working to solve. miners get incentive to include transactions in their blocks because of attached transaction fees. the difficulty of the mathematical problem is automatically adjusted by the network, such that it targets a goal of solving an average of 6 blocks per hour. every 2016 blocks (solved in about two weeks), all bitcoin clients compare the actual number created with this goal and modify the target by the percentage that it varied. the network comes to a consensus and automatically increases (or decreases) the difficulty of generating blocks. because each block contains a reference to the prior block, the collection of all blocks in existence can be said to form a chain. however, it’s possible for the chain to have temporary splits – for example, if two miners arrive at two different valid solutions for the same block at the same time, unbeknownst to one another. the peer-to-peer network is designed to resolve these splits within a short period of time, so that only one branch of the chain survives. the client accepts the ‘longest’ chain of blocks as valid. the ‘length’ of the entire block chain refers to the chain with the most combined difficulty, not the one with the most blocks. this prevents someone from forking the chain and creating a large number of low-difficulty blocks, and having it accepted by the network as ‘longest’
Block (sequence) welding, английский
Block address, английский
Block alignment, английский
Block allocation, английский
Block and block, английский
The situation of a tackle when the blocks are drawn close together, so that the mechanical power becomes arrested until the tackle is again overhauled by drawing the blocks asunder. synonymous with chock-a-block.
Block and fall, английский
Block and filter, английский
An app (shipped in china only) that filters out certain calls and messages from the user’s phone as well as messaging services, with optional blocking of withheld and unknown numbers. it also provides caller id info for incoming calls from bare numbers that are not on local contact list.
Block and filter (global), английский
An app that filters out certain calls and messages from the user’s phone, as well as messaging services, with optional blocking of withheld and unknown numbers.
Block and hook retractor, английский
Устройство для отвода талевого блока и крюка а
Block and tackle, английский
- A pulley block, 6 together with rope or cable, used to raise or shift a load.
- A system of pulleys and ropes. see also sheave, and block and tackle individually.
- Two blocks with reeved rope or cable. see block 3.
- A combination of one or more blocks and the associated tackle necessary to give a mechanical advantage. useful for lifting heavy loads.
Block and tackle , английский
Block antenna, английский
Block antenna; community antenna, английский
Block area, английский
- The process of transforming text into an unintelligible form called cipher.
- A method of encoding data for security.
- Защита сообщения от неправомочного прочтения, основанная на преобразовании его в шифрованный текст. расшифровать этот текст, т.е. восстановить исходное сообщение, можно только с помощью ключа, использовавшегося при его шифровании
- The rearrangement of the bit stream of a previously digitally encoded signal in a
- An encoder electronically alters a signal so that it can be clearly seen only by recipients who have a decoder to reverse encryption. selective addressability/scrambling designates receivers to descramble a signal. each decoder has a unique address.
- The rearrangement of the bit stream of a previously digitally encoded signal in a systematic fashion to make the information unrecognizable until restored on receipt of the necessary authorization key. this technique is used for securing information transmitted over a communication channel with the intent of excluding all other than authorized receivers from interpreting the message. can be used for voice, video and other communications signals.
- Encryption is a process by which a document (plaintext) is combined with a shorter string of data, called a key (eg. ), to produce an output (ciphertext) which can be "decrypted" back into the original plaintext by someone else who has the key, but which is incomprehensible and computationally infeasible to decrypt for anyone who does not have the key.
- The process of converting readable data (plaintext) into a coded form (ciphertext) to prevent it from being read by an unauthorized party.
- Unreadible text resulting from encryption.
- Зашифрованный текст; шифротекст
- Data that has been encrypted.
- Непрерывный; длительный; продолжающийся
- A продолженный, дли- тельный, непрерванный form, future, past, present contoid n контоид
- Непрерывный, неразрывный, сплошной, неразрезной (об элементах конструкции)
|California sb 1386, английский|
California senate bill requires that organizations that own or have access to personal information of california residents to notify them if the security of their information is compromised.
Backup tapes, английский
Copying data on tapes for the purpose of restoring the original content in case data is lost.