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Type of cipher
cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called blocks. Block ciphers are the elementary
Block_cipher
Cryptography algorithm
In cryptography, a block cipher mode of operation is an algorithm that uses a block cipher to provide information security such as confidentiality or
Block cipher mode of operation
Block_cipher_mode_of_operation
Cryptography construction
cryptography, a Feistel cipher (also known as Luby–Rackoff block cipher) is a symmetric structure used in the construction of block ciphers, named after the
Feistel_cipher
Type of symmetric key cipher
stream. Stream ciphers represent a different approach to symmetric encryption from block ciphers. Block ciphers operate on large blocks of digits with
Stream_cipher
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
Standard for the encryption of electronic data
Standards and Technology (NIST) in 2001. AES is a variant of the Rijndael block cipher developed by two Belgian cryptographers, Joan Daemen and Vincent Rijmen
Advanced_Encryption_Standard
Soviet/Russian national standard block cipher
GOST block cipher (Magma), defined in the standard GOST 28147-89, is a Soviet and Russian government standard symmetric key block cipher with a block size
GOST_(block_cipher)
Cryptographic primitive
One-way compression functions are often built from block ciphers. Some methods to turn any normal block cipher into a one-way compression function are Davies–Meyer
One-way_compression_function
Practice and study of secure communication techniques
1976. Symmetric key ciphers are implemented as either block ciphers or stream ciphers. A block cipher enciphers input in blocks of plaintext as opposed
Cryptography
Algorithm
use either stream ciphers or block ciphers. Stream ciphers encrypt the digits (typically bytes), or letters (in substitution ciphers) of a message one
Symmetric-key_algorithm
Authenticated encryption mode for block ciphers
Galois/Counter Mode (GCM) is a mode of operation for symmetric-key cryptographic block ciphers. The proposal was first published in 2007. The GCM algorithm belongs
Galois/Counter_Mode
Stream cipher
(also known as ARC4 or ARCFOUR, meaning Alleged RC4, see below) is a stream cipher. While it is remarkable for its simplicity and speed in software, multiple
RC4
System to replace plaintext with ciphertext
In cryptography, a substitution cipher is a method of encrypting that creates the ciphertext (its output) by replacing units of the plaintext (its input)
Substitution_cipher
Complex Soviet pencil and paper cipher
certainly not as complex or secure as modern computer operated stream ciphers or block ciphers, in practice messages protected by it resisted all attempts at
VIC_cipher
Block cipher
Blowfish is a symmetric-key block cipher, designed in 1993 by Bruce Schneier and included in many cipher suites and encryption products. Blowfish provides
Blowfish_(cipher)
Encrypted information
algorithms can either be block ciphers or stream ciphers. Block ciphers operate on fixed-length groups of bits, called blocks, with an unvarying transformation
Ciphertext
Simple type of polyalphabetic encryption system
The Vigenère cipher (French pronunciation: [viʒnɛːʁ]) is a method of encrypting alphabetic text where each letter of the plaintext is encoded with a different
Vigenère_cipher
Encryption method
that securely combining separate confidentiality and authentication block cipher operation modes could be error prone and difficult. This was confirmed
Authenticated_encryption
Study of analyzing information systems in order to discover their hidden aspects
distinguish the cipher from a random permutation. Academic attacks are often against weakened versions of a cryptosystem, such as a block cipher or hash function
Cryptanalysis
Algorithms to produce pseudo-random numbers
versions of block ciphers. Below we explain how this works. When using a cryptographic block cipher in counter mode, you generate a series of blocks of random
Counter-based random number generator
Counter-based_random_number_generator
Cryptographic algorithm
method of using a block cipher mode of operation that allows for processing of messages that are not evenly divisible into blocks without resulting in
Ciphertext_stealing
Class of functions in cryptography
the block cipher's security parameter (this usually means the effort required should be about the same as a brute force search through the cipher's key
Pseudorandom_permutation
Block cipher
In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists
Twofish
Type of substitution cipher
pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) is a geometric
Pigpen_cipher
implementations of block ciphers. Block ciphers are defined as being deterministic and operating on a set number of bits (termed a block) using a symmetric
Comparison of cryptography libraries
Comparison_of_cryptography_libraries
Chinese block cipher
ShāngMì 4 (SM4, 商密4) (formerly SMS4) is a block cipher, standardised for commercial cryptography in China. It is used in the Chinese National Standard
SM4_(cipher)
Adding data to a message prior to encryption to hide its length
SHA-512/224, and SHA-512/256 Cipher-block chaining (CBC) mode is an example of block cipher mode of operation. Some block cipher modes (CBC and PCBC essentially)
Padding_(cryptography)
Block cipher
Triple DEA), is a symmetric-key block cipher, which applies the DES cipher algorithm three times to each data block. The 56-bit key of the Data Encryption
Triple_DES
Classic polyalphabet encryption system
An autokey cipher (also known as the autoclave cipher) is a cipher that incorporates the message (the plaintext) into the key. The key is generated from
Autokey_cipher
Encryption algorithm used by DVB television standard
distinct ciphers: a block cipher and a stream cipher. When used in encryption mode the data are first encrypted using the 64-bit block cipher in CBC mode
Common_Scrambling_Algorithm
Hash function that is suitable for use in cryptography
use a block cipher to build a cryptographic hash function, specifically a one-way compression function. The methods resemble the block cipher modes of
Cryptographic_hash_function
Feistel network based block cipher
In cryptography, Camellia is a symmetric key block cipher with a block size of 128 bits and key sizes of 128, 192 and 256 bits. It was jointly developed
Camellia_(cipher)
Substitution cipher based on linear algebra
this is not an essential feature of the cipher, this simple scheme is often used: To encrypt a message, each block of n letters (considered as an n-component
Hill_cipher
General form of cryptanalysis applicable primarily to block ciphers
general form of cryptanalysis applicable primarily to block ciphers, but also to stream ciphers and cryptographic hash functions. In the broadest sense
Differential_cryptanalysis
Block cipher
Serpent is a symmetric key block cipher that was a finalist in the Advanced Encryption Standard (AES) contest, in which it ranked second to Rijndael. Serpent
Serpent_(cipher)
Length of bit string processed by a cipher
modern cryptography, symmetric key ciphers are generally divided into stream ciphers and block ciphers. Block ciphers operate on a fixed length string of
Block_size_(cryptography)
Block cipher
In cryptography, ARIA is a block cipher designed in 2003 by a large group of South Korean researchers. In 2004, the Korean Agency for Technology and Standards
ARIA_(cipher)
Earliest civilian block ciphers
cryptography, Lucifer was the name given to several of the earliest civilian block ciphers, developed by Horst Feistel and his colleagues at IBM. Lucifer was a
Lucifer_(cipher)
Message authentication code algorithm
encrypted with some block cipher algorithm in cipher block chaining (CBC) mode to create a chain of blocks such that each block depends on the proper
CBC-MAC
Polyalphabetic encryption system
The Beaufort cipher, created by Sir Francis Beaufort, is a substitution cipher similar to the Vigenère cipher, with a slightly modified enciphering mechanism
Beaufort_cipher
Input to a cryptographic primitive
between (potentially similar) segments of the encrypted message. For block ciphers, the use of an IV is described by the modes of operation. Some cryptographic
Initialization_vector
Method in cryptography
the definition of an n-bit block cipher). For such finite domains, and for the purposes of the discussion below, the cipher is equivalent to a permutation
Format-preserving_encryption
Block cipher
In cryptography, XTEA (eXtended TEA) is a block cipher designed to correct weaknesses in TEA. The cipher's designers were David Wheeler and Roger Needham
XTEA
Encryption system
In classical cryptography, the bifid cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion
Bifid_cipher
Cryptographic protocols for securing data in transit
attack breaks all block ciphers (CBC ciphers) used in SSL 3.0 unless mitigated by the client or the server. See § Web browsers. AEAD ciphers (such as GCM and
Transport_Layer_Security
Caesar cipher ROT13 Affine cipher Atbash cipher Keyword cipher Polyalphabetic substitution Vigenère cipher Autokey cipher Homophonic substitution cipher Polygraphic
Outline_of_cryptography
Type of polyalphabetic substitution cipher
In classical cryptography, the running key cipher is a type of polyalphabetic substitution cipher in which a text, typically from a book, is used to provide
Running_key_cipher
Early unclassified symmetric-key block cipher
design elements, a relatively short key length of the symmetric-key block cipher design, and the involvement of the NSA, raising suspicions about a backdoor
Data_Encryption_Standard
Wide-block cipher
Adiantum is a cipher composition for disk encryption. It uses a new cipher construction called HBSH (hash, block cipher, stream cipher, hash), specifically
Adiantum_(cipher)
The DST is an unpowered "passive" transponder which uses a proprietary block cipher to implement a challenge–response authentication protocol. Each DST tag
Digital_signature_transponder
Disused cipher that was used historically
In cryptography, a classical cipher is a type of cipher that was used historically but, for the most part, has fallen into disuse. In contrast to modern
Classical_cipher
Concept in cryptography
pad cipher and in most stream ciphers. Block ciphers can also be used to produce keystreams. For instance, CTR mode is a block mode that makes a block cipher
Keystream
Open-source password management software
such as passwords or IDs and encrypt them through Blowfish symmetric block cipher algorithm or GNU Privacy Guard encryption. KDE Wallet Manager (KWallet)
KWallet
Pseudorandom number generator
is based on any good block cipher. Practical Cryptography suggests AES, Serpent or Twofish. The basic idea is to run the cipher in counter mode, encrypting
Fortuna_(PRNG)
Family of block ciphers
Speck is part of a family of lightweight block ciphers publicly released by the National Security Agency (NSA) in June 2013. Speck has been optimized
Speck_(cipher)
Type of functions designed for being unsolvable by root-finding algorithms
underlying block cipher when the number of bits output from this PRNG is greater than two to the power of the underlying block cipher's block size in bits
Cryptographically secure pseudorandom number generator
Cryptographically_secure_pseudorandom_number_generator
Early block substitution cipher
The Playfair cipher or Playfair square or Wheatstone–Playfair cipher is a manual symmetric encryption technique and was the first literal digram substitution
Playfair_cipher
Stream ciphers
and the closely related ChaCha are stream ciphers developed by Daniel J. Bernstein. Salsa20, the original cipher, was designed in 2005, then later submitted
Salsa20
Cryptanalytic attacks using a system of multivariate equations
cryptosystem. In block cipher, the plaintext is broken into plaintext units and encrypted by fixed key k {\displaystyle k} meanwhile in stream cipher, a Boolean
Algebraic_attack
Authenticated encryption mode for block ciphers
(counter with cipher block chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated
CCM_mode
Symmetric-key block cipher
called Improved Proposed Encryption Standard (IPES), is a symmetric-key block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described
International Data Encryption Algorithm
International_Data_Encryption_Algorithm
Random data used as an additional input to a hash function
Cryptographic nonce Initialization vector Padding "Spice" in the Hasty Pudding cipher Rainbow tables Pepper (cryptography) Fenton, James L.; Grassi, Paul A.;
Salt_(cryptography)
Concept in cryptography
effect is the desirable property of cryptographic algorithms, typically block ciphers and cryptographic hash functions, wherein if an input is changed slightly
Avalanche_effect
a 64-bit block cipher developed in 1987. RC3 was broken before ever being used. RC4 is a stream cipher. RC5 is a 32/64/128-bit block cipher developed
RC_algorithm
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
Caesar_cipher
Attacks against common ciphers
This article summarizes publicly known attacks against block ciphers and stream ciphers. Note that there are perhaps attacks that are not publicly known
Cipher_security_summary
Form of cryptanalysis
a cipher. Attacks have been developed for block ciphers and stream ciphers. Linear cryptanalysis is one of the two most widely used attacks on block ciphers;
Linear_cryptanalysis
Computer communications authentication algorithm
SHA-1) blockSize: Integer // The block size of the hash function (e.g. 64 bytes for SHA-1) // Compute the block sized key block_sized_key = computeBlockSizedKey(key
HMAC
Block cipher
for 'Grasshopper'; Cyrillic script: Кузнечик) is a symmetric block cipher. It has a block size of 128 bits and key length of 256 bits. It is defined in
Kuznyechik
Process of converting plaintext to ciphertext
theorized a cipher to encode and decode messages to provide a more secure way of military correspondence. The cipher, known today as the Wheel Cipher or the
Encryption
the ciphers' block-size (typically 128 bits). Modes are therefore rules on how to repeatedly apply the ciphers' single-block operations. Cipher-block chaining
Disk_encryption_theory
Message authentication code algorithm
(OMAC) is a family of message authentication codes constructed from a block cipher much like the CBC-MAC algorithm. It may be used to provide assurance
One-key_MAC
International standard
techniques – Message Authentication Codes (MACs) – Part 1: Mechanisms using a block cipher is an international standard that defines methods for calculating a message
ISO/IEC_9797-1
QARMA (from Qualcomm ARM Authenticator) is a lightweight tweakable block cipher primarily known for its use in the ARMv8 architecture for protection of
QARMA
Block cipher
In cryptography, Skipjack is a block cipher — an algorithm for encryption — developed by the United States National Security Agency (NSA). Initially a
Skipjack_(cipher)
Multiple-substitution writing system cipher
polyalphabetic cipher is a substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though
Polyalphabetic_cipher
English cryptanalyst (1917–1996)
messages during World War II. In 1941, trawlers were captured as well as their cipher equipment and codes. Before this information was obtained, wolf packs had
Joan_Clarke
Form of cryptanalysis
of block ciphers based on differential cryptanalysis. The attack was published in 1999 by David Wagner, who used it to break the COCONUT98 cipher. The
Boomerang_attack
Algorithm for public-key cryptography
insecure public-key cipher published in 1997, designed for educational purposes. Kid-RSA gives insight into RSA and other public-key ciphers, analogous to simplified
RSA_cryptosystem
German cipher machine during World War II
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication
Enigma_machine
Generic space–time tradeoff cryptographic attack
space and 2112 operations. When trying to improve the security of a block cipher, a tempting idea is to encrypt the data several times using multiple
Meet-in-the-middle_attack
Process of developing the AES standard
The Advanced Encryption Standard (AES), the symmetric block cipher ratified as a standard by National Institute of Standards and Technology of the United
Advanced Encryption Standard process
Advanced_Encryption_Standard_process
Substitution cipher
(Hebrew: אתבש; also transliterated Atbaš) is a monoalphabetic substitution cipher originally used to encrypt the Hebrew alphabet. It can be modified for use
Atbash
Cipher machines used by the German Army during World War II
The Lorenz SZ40, SZ42a and SZ42b were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz
Lorenz_cipher
Block cipher
In cryptography, RC6 is a symmetric key block cipher derived from RC5. It was designed by Ron Rivest, Matt Robshaw, Ray Sidney, and Yiqun Lisa Yin to meet
RC6
Family of authenticated ciphers
Ascon is a family of lightweight authenticated ciphers and hash functions that have been selected by the U.S. National Institute of Standards and Technology
Ascon_(cipher)
Type of code
used as a basic cipher called the Polybius cipher. This cipher is quite insecure by modern standards, as it is a substitution cipher with characters being
Polybius_square
US standard for secure communications
security, SCIP uses a block cipher operating in counter mode. A new Traffic Encryption Key (TEK) is negotiated for each call. The block cipher is fed a 64-bit
Secure Communications Interoperability Protocol
Secure_Communications_Interoperability_Protocol
Method of encryption
In cryptography, a transposition cipher (also known as a permutation cipher) is a method of encryption which scrambles the positions of characters (transposition)
Transposition_cipher
Cryptography practises of the USA's National Security Agency
algorithm transition." NSA encryption systems Speck and Simon, light-weight block ciphers, published by NSA in 2013 "National Information Assurance Glossary";
NSA_cryptography
Tables for the Data Encryption Standard
the various tables referenced in the Data Encryption Standard (DES) block cipher. All bits and bytes are arranged in big endian order in this document
DES_supplementary_material
International standard
Modes of operation for an n-bit block cipher is an international standard that specifies modes of operation for block ciphers of any length. The modes defined
ISO/IEC_10116
Block cipher
cryptography, Corrected Block TEA (often referred to as XXTEA) is a block cipher designed to correct weaknesses in the original Block TEA. XXTEA is vulnerable
XXTEA
Cipher
In cryptography, the Iraqi block cipher was a block cipher published in C source code form by anonymous FTP upload around July 1999, and widely distributed
Iraqi_block_cipher
Cipher design construction
used in block cipher algorithms such as AES (Rijndael), 3-Way, Kalyna, Kuznyechik, PRESENT, SAFER, SHARK, and Square. Such a network takes a block of the
Substitution–permutation network
Substitution–permutation_network
Fundamental tool in cryptography
in essence, creates 26 different Caesar ciphers. The resulting ciphertext appears as a random string or block of data. Due to the variable shifting, natural
Tabula_recta
Family of lightweight block ciphers
Simon is a family of lightweight block ciphers publicly released by the National Security Agency (NSA) in June 2013. Simon has been optimized for performance
Simon_(cipher)
Stream cipher
Trivium is a synchronous stream cipher designed to provide a flexible trade-off between speed and gate count in hardware, and reasonably efficient software
Trivium_(cipher)
Steganography method
Bacon's cipher or the Baconian cipher is a method of steganographic message encoding devised by Francis Bacon in 1605. In steganography, a message is
Bacon's_cipher
Set of cryptographic hash functions
function itself built using the Davies–Meyer structure from a specialized block cipher. SHA-2 includes significant changes from its predecessor, SHA-1. The
SHA-2
BLOCK CIPHER
BLOCK CIPHER
Male
English
The Badger
Male
English
Surname transferred to forename use, derived from Old English brocc BROCK means "badger."
Girl/Female
Australian, Christian, Finnish, German, Latin, Swedish
Jet Black; Black Germ; Jet-black Gemstone; Coal Black
Surname or Lastname
English
English : topographic name for someone who lived on a small plot of land, from Middle English plocke ‘small piece of ground’.Americanized spelling of German Ploch.Variant of German Block.
Boy/Male
American, Australian, British, Chinese, Christian, English, German, Indian, Irish
Stream; Badger
Surname or Lastname
German
German : nickname for a man with some fancied resemblance to a he-goat, Middle High German boc, or a habitational name from a house distinguished by the sign of a goat.Altered spelling of German Böck (see Boeck) or Bach.Jewish (Ashkenazic) : ornamental name from German Bock ‘he-goat’.English : variant of Buck.
Boy/Male
Muslim
Black
Surname or Lastname
English
English : of uncertain origin; possibly a nickname for someone with thick curly hair, from Old French floc ‘stable of wool’. Alternatively, it may be a metonymic occupational name for a shepherd, from Old English flocc ‘herd’, ‘company’.German : unexplained.German (Flöck) : variant of Flück (see Fluck), or from a pet form of a personal name formed with Old Saxon flÅd ‘flood’.
Boy/Male
Native American
Black.
Boy/Male
Muslim
Black
Surname or Lastname
English
English : unexplained; possibly from Middle English bleik, blek(e) ‘pallid’, ‘sallow’ (from Old Norse bleikr ‘pale’) with alteration of the vowel, although Reaney suggests it may be a nickname derived from Middle English blikie(n) ‘to shine or gleam’ (from Old English blīcian).Jewish (Ashkenazic) : origin uncertain; possibly from German Blick or Yiddish blik ‘glance’, ‘look’, and based on some now irrecoverable anecdote.German : Prussian variant of Blek, a nickname from Middle High German blic ‘shine’.German : short form of the Low German occupational name Blickslager ‘tinsmith’. Compare Bleck.German : from a short form of the Germanic personal name Bligger, Blickhart, based on blic ‘gleam’, ‘shine’, later ‘pale’.
Girl/Female
Muslim
Clock
Surname or Lastname
German and Dutch
German and Dutch : from Middle High German bloch, Middle Dutch blok ‘block of wood’, ‘stocks’. The surname probably originated as a nickname for a large, lumpish man, or perhaps as a nickname for a persistent lawbreaker who found himself often in the stocks.English : possibly a metonymic occupational name for someone who blocks, as in shoemaking and bookbinding, from Middle English blok ‘block’.Jewish (Ashkenazic) : Americanized spelling of Bloch (see Vlach).Adriaen Coertsz Block was a Dutch-born merchant-explorer who traded along the CT coast and Long Island shortly after Hudson’s voyage to the region in 1609. Block Island, between the north fork of Long Island and RI, which he used as a base of operations, is named after him.
Surname or Lastname
English
English : metonymic occupational name for a locksmith, from Middle English, Old English loc ‘lock’, ‘fastening’.English : topographic name for someone who lived near an enclosure, a place that could be locked, Middle English loke, Old English loca (a derivative of loc as in 1). Middle English loke also came to be used to denote a barrier, in particular a barrier on a river which could be opened and closed at will, and, by extension, a bridge. The surname may thus also have been a metonymic occupational name for a lock-keeper.English, Dutch, and German : nickname for a person with fine hair, or curly hair, from Middle English loc, Middle High German lock(e) ‘lock (of hair)’, ‘curl’.Americanized spelling of German Loch.
Boy/Male
English
Dark.
Boy/Male
German American English
Surname or Lastname
Scottish and English
Scottish and English : from Middle English blak(e) ‘black’ (Old English blæc, blaca), a nickname given from the earliest times to a swarthy or dark-haired man.Scottish and English : from Old English blÄc ‘pale’, ‘fair’, i.e. precisely the opposite meaning to 1, and a variant of Blake 2. Blake and Black are found more or less interchangeably in several surnames and place names.English : variant of Blanc as a Norman name. The pronunciation of the nasalized vowel gave considerable difficulty to English speakers, and its quality was often ignored.Scottish and Irish : translation of various names from Gaelic dubh ‘black’ (see Duff).Danish and Swedish : generally, probably the English and Scottish name, but in some cases perhaps a variant spelling of Blak, a nickname from blak ‘black’.In some cases, a translation of various names meaning ‘black’, for example German and Jewish Schwarz.
Boy/Male
American, Anglo, British, English
Dark; Dark Skinned
Boy/Male
British, English, Irish
Woods; Fortified Place; Bright; Radiant
Surname or Lastname
English, Scottish, and North German
English, Scottish, and North German : variant of Brook.English, Scottish, and Scandinavian : nickname for a person supposedly resembling a badger, Middle English broc(k) (Old English brocc) and Danish brok (a word of Celtic origin; compare Welsh broch, Cornish brogh, Irish broc). In the Middle Ages badgers were regarded as unpleasant creatures.English : nickname from Old French broque, brock ‘young stag’.Dutch : from a personal name, a short form of Brockaert .South German : nickname for a stout and strong man from Middle High German brocke ‘lump’, ‘piece’.Jewish (Ashkenazic) : probably an acronymic family name from Jewish Aramaic bar- or Hebrew ben- ‘son of’, and the first letter of each part of a Yiddish double male personal name. Compare Brill.Jewish (from Poland) : habitational name from Brok, a place in Poland.
BLOCK CIPHER
BLOCK CIPHER
Boy/Male
Indian, Punjabi, Sikh
Love for Gold
Boy/Male
Tamil
Lord Krishna
Girl/Female
Hindu, Indian
Love; Happiness; Light; If Any Other
Male
German
Pet form of German Dieter, DIDI means "warrior of the people." Compare with feminine Didi.
Surname or Lastname
English
English : from Middle English abbeye, abbaye (Old French abeie, Late Latin abbatia ‘priest’s house’), applied as a topographic name for someone living in or near an abbey, or an occupational name for someone working in one.
Girl/Female
Arabic
Safe; Mild
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
One who Born with Intelligence; Supremo; Unique; Mastermind
Boy/Male
Australian, Latin
Conqueror
Biblical
lame; beaten
Boy/Male
English
Tall.. Surname.
BLOCK CIPHER
BLOCK CIPHER
BLOCK CIPHER
BLOCK CIPHER
BLOCK CIPHER
v. t.
Any obstruction, or cause of obstruction; a stop; a hindrance; an obstacle; as, a block in the way.
a.
Black as jet; deep black.
v. t.
A piece of wood more or less bulky; a solid mass of wood, stone, etc., usually with one or more plane, or approximately plane, faces; as, a block on which a butcher chops his meat; a block by which to mount a horse; children's playing blocks, etc.
n.
A black pigment or dye.
a.
To make black; to blacken; to soil; to sully.
v. t.
To flock to; to crowd.
v. t.
To lock, or fasten as with a lock.
a.
In a less literal sense: Enveloped or shrouded in darkness; very dark or gloomy; as, a black night; the heavens black with clouds.
a.
As black as coal; jet black; very black.
n.
Mourning garments of a black color; funereal drapery.
n.
A black garment or dress; as, she wears black
n.
A negro; a person whose skin is of a black color, or shaded with black; esp. a member or descendant of certain African races.
n.
A lock of wool or hair.
v. t.
A section of a railroad where the block system is used. See Block system, below.
n.
The striking of a clock.
n.
To shape on, or stamp with, a block; as, to block a hat.
a.
Having black eyes.
n.
To secure or support by means of blocks; to secure, as two boards at their angles of intersection, by pieces of wood glued to each.