Search references for GRAIN CIPHER. Phrases containing GRAIN CIPHER
See searches and references containing GRAIN CIPHER!GRAIN CIPHER
Stream cipher
Grain is a stream cipher submitted to eSTREAM in 2004 by Martin Hell, Thomas Johansson and Willi Meier. It has been selected for the final eSTREAM portfolio
Grain_(cipher)
Type of symmetric key cipher
stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher, each
Stream_cipher
Topics referred to by the same term
avoirdupois pound Grains per gallon, a unit of water hardness Grain (cipher), a stream cipher designed for restricted hardware environments Grain 128a, successor
Grain_(disambiguation)
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
Project to identify new stream ciphers for widespread adoption
F-FCSR-H v2, Grain v1, Mickey v2, and Trivium. The eSTREAM portfolio ciphers are, as of January 2012[update]: Versions of the eSTREAM portfolio ciphers that support
ESTREAM
Practice and study of secure communication techniques
(or "E") for the eavesdropping adversary. Since the development of rotor cipher machines in World War I and the advent of computers in World War II, cryptography
Cryptography
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
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
Stream cipher
The Grain 128a stream cipher was first purposed at Symmetric Key Encryption Workshop (SKEW) in 2011 as an improvement of the predecessor Grain 128, which
Grain_128a
Authenticated encryption with associated data algorithm
with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code. It has fast software performance
ChaCha20-Poly1305
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
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
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
Turing is a stream cipher developed by Gregory G. Rose and Philip Hawkes at Qualcomm for CDMA. Turing generates 160 bits of output in each round by applying
Turing_(cipher)
Stream cipher
cryptography, SEAL (Software-Optimized Encryption Algorithm) is a stream cipher optimised for machines with a 32-bit word size and plenty of RAM with a
SEAL_(cipher)
Stream cipher
Rabbit is a high-speed stream cipher from 2003. The algorithm and source code was released in 2008 as public domain software. Rabbit was first presented
Rabbit_(cipher)
Stream cipher
Crypto1 is a proprietary encryption algorithm (stream cipher) and authentication protocol created by NXP Semiconductors for its MIFARE Classic RFID contactless
Crypto-1
Vladimir; Bogdanov, Andrey; Andrey, Ilya. "ABC: A New Fast Flexible Stream Cipher" (PDF). European Network of Excellence in Cryptology II. Archived from the
ABC_(stream_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)
Methods to break a stream cipher
Stream ciphers, where plaintext bits are combined with a cipher bit stream by an exclusive-or operation (xor), can be secure if used properly.[citation
Stream_cipher_attacks
cryptography include: A5/1 • A5/2 • ABA digital signature guidelines • ABC (stream cipher) • Abraham Sinkov • Acoustic cryptanalysis • Adaptive chosen-ciphertext
Index of cryptography articles
Index_of_cryptography_articles
Stream cipher
A5/1 is a stream cipher used to provide over-the-air communication privacy in the GSM cellular telephone standard. It is one of several implementations
A5/1
Cryptographic number generator
is a cryptographically secure pseudorandom number generator and a stream cipher designed by Robert J. Jenkins Jr. in 1993. The reference implementation
ISAAC_(cipher)
Cipher algorithm
Dragon is a stream cipher developed at the Information Security Institute by William Millan with some help from Ed Dawson, Kevin Chen, Matt Henricksen
Dragon_(cipher)
Family of stream ciphers
SNOW is a family of word-based synchronous stream ciphers developed by Thomas Johansson and Patrik Ekdahl at Lund University. They have a 512-bit linear
SNOW
Cryptography primitive
cryptographic primitive which can be used both as a hash function and a stream cipher, but its hash function mode of operation has been broken and is not suitable
Panama_(cryptography)
Concept in cryptography
is a block mode that makes a block cipher produce a keystream and thus turns the block cipher into a stream cipher. In this simple example we use the
Keystream
Stream cipher
In cryptography, the QUAD cipher is a stream cipher which was designed with provable security arguments in mind. QUAD relies on the iteration of a randomly
QUAD_(cipher)
Family of stream ciphers
Enabled Register. Initially the cipher was intended as a replacement for broken ciphers in cellular telephony. The ciphers evolved, and other developers
SOBER
Stream cipher algorithm
network. Nawaz, Yassir; Gong, Guang (2008-04-01). "WG: A family of stream ciphers with designed randomness properties". Information Sciences. 178 (7): 1903–1916
WG_(cipher)
Stream cipher
Permutation Composition) for cryptography is a stream cipher similar to the well known and popular cipher RC4 designed by Ron Rivest. It was designed by Bartosz
Variably Modified Permutation Composition
Variably_Modified_Permutation_Composition
Stream cipher
Phelix is a high-speed stream cipher with a built-in single-pass message authentication code (MAC) functionality, submitted in 2004 to the eSTREAM contest
Phelix
Stream cipher algorithm
Thierry (20 April 2005). The Frogbit cipher, a data integrity algorithm (PDF) (Report). eSTREAM, ECRYPT Stream Cipher Project. Retrieved 2026-05-21. v t
Frogbit_(cipher)
Stream cipher algorithm
In cryptography, NLS is a stream cipher algorithm designed by Gregory Rose, Philip Hawkes, Michael Paddon, and Miriam Wiggers de Vries. It has been submitted
NLS_(cipher)
Stream cipher
is a pseudorandom number generator (PRNG) designed for use as a stream cipher. It was among the cryptographic techniques recommended for Japanese government
MUGI
Stream cipher
cryptography, WAKE is a stream cipher designed by David Wheeler in 1993. WAKE stands for Word Auto Key Encryption. The cipher works in cipher feedback mode, generating
WAKE_(cipher)
Algorithm used to generate cryptographic keys
shift registers Grain – a lightweight stream cipher using both linear and non-linear feedback shift registers Solitaire (or Pontifex) cipher – a manual keystream
Key_generator
Stream cipher
A5/2 is a stream cipher used to provide voice privacy in the GSM cellular telephone protocol. It was designed in 1992-1993 (finished March 1993) as a replacement
A5/2
Stream cipher
SHrinking) stream cipher is a fast software based stream cipher using Lagged Fibonacci generators, plus a concept from the shrinking generator cipher. It was published
FISH_(cipher)
Stream cipher
HC-256 is a stream cipher designed to provide bulk encryption in software at high speeds while permitting strong confidence in its security. A 128-bit
HC-256
Stream cipher
The Scream cipher is a word-based stream cipher developed by Shai Halevi, Don Coppersmith and Charanjit Jutla from IBM. The cipher is designed as a software
Scream_(cipher)
Adding data to a message prior to encryption to hide its length
report, Sincerely yours, etc. The primary use of padding with classical ciphers is to prevent the cryptanalyst from using that predictability to find known
Padding_(cryptography)
Stream cipher
Py is a stream cipher submitted to eSTREAM by Eli Biham and Jennifer Seberry. It is one of the fastest eSTREAM candidates at around 2.6 cycles per byte
Py_(cipher)
KCipher-2 is a stream cipher jointly developed by Kyushu University and Japanese telecommunications company KDDI. It is standardized as ISO/IEC 18033–4
KCipher-2
Family of stream ciphers
Efficient Substitution Transposition) ciphers are a set of families of general-purpose hardware-dedicated ciphers that support single pass authenticated
VEST
Type of cryptographic attack
form of cryptanalysis where the attacker can observe the operation of a cipher under several different keys whose values are initially unknown, but where
Related-key_attack
Stream cipher
Sosemanuk is a stream cipher developed by Come Berbain, Olivier Billet, Anne Canteaut, Nicolas Courtois, Henri Gilbert, Louis Goubin, Aline Gouget, Louis
SOSEMANUK
Ability to easily switch cryptographic primitives
Langley, Adam. "Cryptographic Agility". Retrieved 2025-02-07. "OpenSSL 3.4 Cipher Suite Names". Retrieved 2025-02-07. McLean, Tim. "Critical vulnerabilities
Cryptographic_agility
Word, phrase or sentence with no repeated letter
alphabet. A ten-letter heterogram can be used as the key to a substitution cipher for numbers, with the heterogram encoding the string 1234567890 or 0123456789
Heterogram_(literature)
Stream cipher
KEYstream generator (MICKEY) is a stream cipher algorithm developed by Steve Babbage and Matthew Dodd. The cipher is designed to be used in hardware platforms
MICKEY
LEX is a stream cipher based on the round transformation of AES. LEX provides the same key agility and short message block performance as AES while handling
LEX_(cipher)
the ciphers' block-size (typically 128 bits). Modes are therefore rules on how to repeatedly apply the ciphers' single-block operations. Cipher-block
Disk_encryption_theory
Stream cipher
In cryptography, CryptMT is a stream cipher algorithm which internally uses the Mersenne twister. It was developed by Makoto Matsumoto, Mariko Hagita,
CryptMT
Stream cipher
synchronous stream cipher algorithm submitted to the eSTREAM Project of the eCRYPT network. In the final specification the cipher is called ACHTERBAHN-128/80
Achterbahn_(stream_cipher)
Stream cipher
LEVIATHAN is a stream cipher submitted to NESSIE by Scott Fluhrer and David McGrew. It is a seekable stream cipher, which means that the user may efficiently
LEVIATHAN_(cipher)
Stream cipher
The Pike stream cipher was invented by Ross Anderson to be a "leaner and meaner" version of FISH after he broke FISH in 1994. Its name is supposed to be
Pike_(cipher)
Stream cypher algorithm
Stream ciphers Widely used ciphers A5/1 A5/2 ChaCha Crypto-1 E0 RC4 eSTREAM Portfolio Software HC-128 Rabbit Salsa20 SOSEMANUK Hardware Grain MICKEY Trivium
SSS_(cipher)
Stream cipher
SOBER-128 is a synchronous stream cipher designed by Hawkes and Rose (2003) and is a member of the SOBER family of ciphers. SOBER-128 was also designed to
SOBER-128
Form of pseudorandom number generator
(ASG) is a cryptographic pseudorandom number generator used in stream ciphers, based on three linear-feedback shift registers. Its output is a combination
Alternating_step_generator
pseudorandom permutation that can be used to construct a hash function or stream cipher by using it in a sponge construction. One stated design goal is the ability
Gimli_(cipher)
Polish engineer, psychic (1877-1944)
German armed forces began in 1926 using the Enigma cipher machine, the Polish General Staff's Cipher Bureau, in Warsaw, attempted to solve the machine
Stefan_Ossowiecki
Topics referred to by the same term
porridge of grains cooked in milk or water. Hasty Pudding may also refer to: The Hasty-Pudding, a 1796 poem by Joel Barlow Hasty Pudding cipher, a variable-block-size
Hasty pudding (disambiguation)
Hasty_pudding_(disambiguation)
in the design of stream ciphers (such as the F-FCSR generator), in the cryptanalysis of the summation combiner stream cipher (the reason Goresky and Klapper
Feedback with Carry Shift Registers
Feedback_with_Carry_Shift_Registers
Stream cipher
cryptography, F-FCSR is a stream cipher developed by Thierry Berger, François Arnault, and Cédric Lauradoux. The core of the cipher is a Feedback with Carry Shift
F-FCSR
Stream cipher
cellular communications in order to protect data traffic. It is a stream cipher designed to have a very strong 96-bit key strength with a way to reduce
ORYX
Stream cipher
E0 is a stream cipher used in the Bluetooth protocol. It generates a sequence of pseudorandom numbers and combines it with the data using the XOR operator
E0_(cipher)
Stream cipher algorithm
Stream ciphers Widely used ciphers A5/1 A5/2 ChaCha Crypto-1 E0 RC4 eSTREAM Portfolio Software HC-128 Rabbit Salsa20 SOSEMANUK Hardware Grain MICKEY Trivium
Polar_Bear_(cipher)
Topics referred to by the same term
language), a programming language and environment ABC (stream cipher), a stream cipher algorithm Abstract base class, a programming language concept Artificial
ABC
Cipher Protocol
leave the encrypted ciphertext vulnerable to attack. A revised version of cipher, DECIM v2, as well as a 128-bit security version were developed, both proving
DECIM
German Signal Intelligence Agency
The Cipher Department of the High Command of the Wehrmacht (German: Amtsgruppe Wehrmachtnachrichtenverbindungen, Abteilung Chiffrierwesen) (also Oberkommando
Cipher Department of the High Command of the Wehrmacht
Cipher_Department_of_the_High_Command_of_the_Wehrmacht
In cryptography, Hermes8 is the name of a stream cipher designed by Ulrich Kaiser. It has been submitted to the eSTREAM Project of the eCRYPT network.
Hermes8
Stream cipher
LILI-128 is an LFSR based synchronous stream cipher with a 128-bit key. On 13 November 2000, LILI-128 was presented at the NESSIE workshop. It is designed
LILI-128
Key that is easy to break with a specific cipher
cryptography, a weak key is a key, which, used with a specific cipher, makes the cipher behave in some undesirable way. Weak keys usually represent a very
Weak_key
Cryptographic attack
are a class of cryptographic known-plaintext attacks for breaking stream ciphers whose keystreams are generated by combining the output of several linear-feedback
Correlation_attack
Cryptographic technique
agriculture: after grain has been harvested and threshed, it remains mixed together with inedible fibrous chaff. The chaff and grain are then separated
Chaffing_and_winnowing
In cryptography, MOSQUITO was a stream cipher algorithm designed by Joan Daemen and Paris Kitsos. They submitted it to the eSTREAM project, which was a
MOSQUITO
< n {\displaystyle 0\leq i_{1}<\ldots <i_{k}<n} . When used in a stream cipher as a combining function for linear feedback shift registers, a Boolean function
Correlation_immunity
Two raised to an integer power
number of different possible keys in the obsolete 56 bit DES symmetric cipher. 260 = 1152921504606846976 The binary approximation of the exa-, or 1000000000000000000
Power_of_two
Stream cipher algorithm
of the eCRYPT network. DICING is characterized as a synchronous stream cipher that utilizes a clock-controlled mechanism with innovative steps for altering
DICING
It has also been submitted to ISO/IEC 18033 Part 4 which defines stream-cipher standards. The security of MULTI-S01 is based on that of underlying PRNG
MULTI-S01
Mathematical function used in cryptography
T-functions are now widely used in cryptography to construct block ciphers, stream ciphers, PRNGs and hash functions. T-functions were first proposed in 2002
T-function
the eCRYPT network. In 2005, Nicolas T. Courtois noted that, while the cipher is elegant and secure against some simple algebraic attacks, it is vulnerable
SFINKS
Stream cipher
In cryptography, Mir-1 is a software-oriented stream cipher algorithm developed by Alexander Maximov. The algorithm was submitted to the eSTREAM project
Mir-1
FBI investigation concerning Russian espionage
opening it. Häyhänen gave the FBI the information that it needed to crack the cipher - the deciphered message in the nickel turned out to be a message to Häyhänen
Hollow_Nickel_Case
Cryptographic hash function
construction, to minimize memory requirements. Inspired by the lightweight ciphers Grain and KATAN, the hash function family Quark is composed of the three instances
Quark_(hash_function)
stream ciphers. Stream ciphers are defined as using plain text digits that are combined with a pseudorandom cipher digit stream. Stream ciphers are typically
Comparison of cryptography libraries
Comparison_of_cryptography_libraries
1998 film by Stuart Baird
decency are known from the beginning in The Fugitive, Sheridan is a total cipher to both Gerard and the audience until deep into this two-hours-plus film
U.S._Marshals_(film)
Enigma machine used by the Germans in WW2 to encode and decode messages by cipher. Computing – MAC-48: 281,474,976,710,656 (248) possible unique physical
Orders_of_magnitude_(numbers)
Type of shift register
function. Nonlinear-feedback shift registers are components in modern stream ciphers, especially in RFID and smartcard applications. NLFSRs are known to be
Nonlinear-feedback shift register
Nonlinear-feedback_shift_register
Single-use value in secure communications
as invalid orders. A nonce may be used to ensure security for a stream cipher. Where the same key is used for more than one message and then a different
Cryptographic_nonce
Post
President and Prime Minister, manages cipher and decipher documents, and takes action based on received cipher messages. He/she ensures the safe custody
Divisional Commissioner (Bangladesh)
Divisional_Commissioner_(Bangladesh)
German Nazi politician and military leader (1893–1946)
morphine derivative) — he had been taking the equivalent of three or four grains (260 to 320 mg) of morphine a day — and was put on a strict diet; he lost
Hermann_Göring
Entertainment Auditorium January 4, 2011 January 4, 2011 Unreleased Unreleased Cipher Prime Zoo Games Avatar: The Last Airbender Avatar: The Legend of Aang (PAL)
List of PlayStation Portable games
List_of_PlayStation_Portable_games
Stream cipher algorithm
Stream ciphers Widely used ciphers A5/1 A5/2 ChaCha Crypto-1 E0 RC4 eSTREAM Portfolio Software HC-128 Rabbit Salsa20 SOSEMANUK Hardware Grain MICKEY Trivium
TRBDK3_YAEA
Symbol with three-fold rotational symmetry
also uses it. The 27th SS Volunteer Division Langemarck's shoulder strap cipher was a triskele (though not involving sevens). Use of the triskele can be
Triskelion
Roman emperor from AD 69 to 79
by Mahlon H. Smith Private collection of coins minted by Vespasian The Cipherment of the Franks Casket; A. Simmons; Vespasian is depicted on the back side
Vespasian
Stream cipher algorithm
Stream ciphers Widely used ciphers A5/1 A5/2 ChaCha Crypto-1 E0 RC4 eSTREAM Portfolio Software HC-128 Rabbit Salsa20 SOSEMANUK Hardware Grain MICKEY Trivium
CJCSG
American spy for Soviet Union
Soviet embassy in Washington, D.C., sold a top-secret document (a radio cipher card) for several thousand dollars, and negotiated an ongoing salary of
John_Anthony_Walker
Country in Eastern Europe and North Asia
(27): 2819–2823. JSTOR 4413752. Mulligan, Timothy P. (April 1987). "Spies, Ciphers and 'Zitadelle': Intelligence and the Battle of Kursk, 1943". Journal of
Russia
1999 Microsoft operating system version
to encrypt and decrypt large amounts of data than if an asymmetric key cipher were used. The symmetric key used to encrypt the file is then encrypted
Windows_2000
GRAIN CIPHER
GRAIN CIPHER
Boy/Male
Norse
Son of Gunnar.
Girl/Female
Indian
Grace, Holiness, Dignity, Power, One of the eight siddhis of the science of Yoga, Power
Boy/Male
Australian, Greek
Watchful; Vigilant
Surname or Lastname
Swedish
Swedish : unexplained.German : unexplained.English : unexplained.
Surname or Lastname
Irish
Irish : reduced Anglicized form of Gaelic Ó Dreain ‘descendant of Drean’, a byname possibly from dreán ‘wren’. The name is also found in Scotland.Irish (Cork) : reduced Anglicized form of Gaelic Ó Druacháin (see Drohan).English : from Middle English dreine ‘drain’, ‘ditch’, hence a metonymic occupational name for a ditch digger or a topographic name.English : variant spelling of Drane.French : reduced form of Derain, from Old French dererain ‘last’, hence a nickname for the youngest son of a family.French : habitational name from a place in Maine-et-Loire called Drain.
Girl/Female
Indian
Fulfilled of Grains
Boy/Male
French German
Guards; guardian.
Girl/Female
Hindu, Indian, Sanskrit, Telugu
Rain; Grain
Boy/Male
Armenian, Australian, Basque, Chinese, French, German, Latin
Guardian; Mighty with a Spear
Boy/Male
Muslim
Dear, Beloved
Surname or Lastname
English
English : variant of Gaines.
Boy/Male
Arabic, Muslim, Pashtun
Dear; Beloved
Boy/Male
Indian, Sanskrit
Of Planets
Female
English
Modern English name, either derived from from the vocabulary word, or a revival of the medieval English personal name Rayne, RAIN means "queen." Compare with masculine Rain.
Surname or Lastname
English (Devon)
English (Devon) : metonymic occupational name for a trapper or hunter, from Middle English trayne, Old French traine ‘guile’, ‘snare’, ‘trap’.English (Devon) : topographic name from Middle English atte trewen ‘at the trees’, or a habitational name from any of the places named with this phrase, for example Train, Traine, or Trewyn, all in Devon.
Surname or Lastname
Irish
Irish : variant of Crehan.English : variant spelling of Crane.
Girl/Female
Arthurian Legend
Taken from Igraine.
Surname or Lastname
English
English : variant of Raine.German : topographic name from Middle High German rein ‘margin’, ‘boundary’, or a habitational name from a place in Bavaria named with this word.
Boy/Male
American, Australian, German, Irish
High; Noble
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : topographic name for someone who lived near an ash tree or ash wood, from Old French fraisne, fresne ‘ash’ (Latin fraxinus).French : habitational name from a place in Vosges named Frain.
GRAIN CIPHER
GRAIN CIPHER
Female
Egyptian
, lady of the house.
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Tamil, Telugu
Preeminence; Prestige
Girl/Female
Hindu
Boy/Male
Arabic, Muslim
Revelation of the Merciful Allah
Girl/Female
Latin
The mythological Roman goddess of flowers. Diminutive of Florence: From 'florentius' or...
Boy/Male
Tamil
Lord vishnus weapon, Circular
Boy/Male
American, British, Danish, English, French, Swedish
Infamous; Noble Man
Boy/Male
Hindu, Indian, Marathi
Accompanied by Gods
Girl/Female
Arabic Muslim Native American
Desire.
Girl/Female
American, British, English, French
Beloved; Dear One; Little and Womanly
GRAIN CIPHER
GRAIN CIPHER
GRAIN CIPHER
GRAIN CIPHER
GRAIN CIPHER
n.
To come off winner or victor in; to be successful in; to obtain by competition; as, to gain a battle; to gain a case at law; to gain a prize.
n.
To reach; to attain to; to arrive at; as, to gain the top of a mountain; to gain a good harbor.
v. t.
To drain by means of tiles; to furnish with a tile drain.
n.
The unit of the English system of weights; -- so called because considered equal to the average of grains taken from the middle of the ears of wheat. 7,000 grains constitute the pound avoirdupois, and 5,760 grains the pound troy. A grain is equal to .0648 gram. See Gram.
v.
A roll train; as, a 12-inch train.
n.
A broad, open dish; a chalice; -- only used of the Holy Grail.
v. t.
To form (powder, sugar, etc.) into grains.
a.
Having a grain; divided into small particles or grains; showing the grain; hence, rough.
v. t.
To teach and form by practice; to educate; to exercise; to discipline; as, to train the militia to the manual exercise; to train soldiers to the use of arms.
v. t.
To paint in imitation of the grain of wood, marble, etc.
v. t.
To take the hair off (skins); to soften and raise the grain of (leather, etc.).
n.
The grain from the mashing tub; as, brewers' drains.
n.
Any small, hard particle, as of sand, sugar, salt, etc.; hence, any minute portion or particle; as, a grain of gunpowder, of pollen, of starch, of sense, of wit, etc.
a.
A sort of spice, the grain of paradise.
n.
The remains of grain, etc., after brewing or distillation; hence, any residuum. Also called draff.
a.
Resembling grains; granular.
n.
To form grains, or to assume a granular ferm, as the result of crystallization; to granulate.
a.
Producing corn or grain; furnished with grains of corn.
n. pl.
See 5th Grain, n., 2 (b).
n.
The composite particles of any substance; that arrangement of the particles of any body which determines its comparative roughness or hardness; texture; as, marble, sugar, sandstone, etc., of fine grain.