Definitions for FEAL
feal

WiktionaryRate this definition:1.0 / 1 vote

1. fealverb

   To hide.

2. Etymology: From felen, from fela, from felhanan, from pele(w)-. Cognate with felahan, feolan.

WikipediaRate this definition:0.0 / 0 votes

1. FEAL

   In cryptography, FEAL (the Fast data Encipherment ALgorithm) is a block cipher proposed as an alternative to the Data Encryption Standard (DES), and designed to be much faster in software. The Feistel based algorithm was first published in 1987 by Akihiro Shimizu and Shoji Miyaguchi from NTT. The cipher is susceptible to various forms of cryptanalysis, and has acted as a catalyst in the discovery of differential and linear cryptanalysis. There have been several different revisions of FEAL, though all are Feistel ciphers, and make use of the same basic round function and operate on a 64-bit block. One of the earliest designs is now termed FEAL-4, which has four rounds and a 64-bit key. Problems were found with FEAL-4 from the start: Bert den Boer related a weakness in an unpublished rump session at the same conference where the cipher was first presented. A later paper (den Boer, 1988) describes an attack requiring 100–10000 chosen plaintexts, and Sean Murphy (1990) found an improvement that needs only 20 chosen plaintexts. Murphy and den Boer's methods contain elements similar to those used in differential cryptanalysis. The designers countered by doubling the number of rounds, FEAL-8 (Shimizu and Miyaguchi, 1988). However, eight rounds also proved to be insufficient — in 1989, at the Securicom conference, Eli Biham and Adi Shamir described a differential attack on the cipher, mentioned in (Miyaguchi, 1989). Gilbert and Chassé (1990) subsequently published a statistical attack similar to differential cryptanalysis which requires 10000 pairs of chosen plaintexts. In response, the designers introduced a variable-round cipher, FEAL-N (Miyaguchi, 1990), where "N" was chosen by the user, together with FEAL-NX, which had a larger 128-bit key. Biham and Shamir's differential cryptanalysis (1991) showed that both FEAL-N and FEAL-NX could be broken faster than exhaustive search for N ≤ 31. Later attacks, precursors to linear cryptanalysis, could break versions under the known plaintext assumption, first (Tardy-Corfdir and Gilbert, 1991) and then (Matsui and Yamagishi, 1992), the latter breaking FEAL-4 with 5 known plaintexts, FEAL-6 with 100, and FEAL-8 with 215. In 1994, Ohta and Aoki presented a linear cryptanalytic attack against FEAL-8 that required 212 known plaintexts.

ChatGPTRate this definition:0.0 / 0 votes

1. feal

   Feal is a Middle English word meaning "fiery" or "violent." It is often used to describe something that is intense or passionate in nature.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Fealadjective

   faithful; loyal

2. Etymology: [OF. feal, feel, feeil, fedeil, F. fidle, L. fidelis faithful, fr. fides faith. See Faith.]

WikidataRate this definition:0.0 / 0 votes

1. FEAL

   In cryptography, FEAL is a block cipher proposed as an alternative to the Data Encryption Standard, and designed to be much faster in software. The Feistel based algorithm was first published in 1987 by Akihiro Shimizu and Shoji Miyaguchi from NTT. The cipher is susceptible to various forms of cryptanalysis, and has acted as a catalyst in the discovery of differential and linear cryptanalysis. There have been several different revisions of FEAL, though all are Feistel ciphers, and make use of the same basic round function and operate on a 64-bit block. One of the earliest designs is now termed FEAL-4, which has four rounds and a 64-bit key. Unfortunately, problems were found with FEAL-4 from the start: Bert den Boer related a weakness in an unpublished rump session at the same conference where the cipher was first presented. A later paper describes an attack requiring 100–10000 chosen plaintexts, and Sean Murphy found an improvement that needs only 20 chosen plaintexts. Murphy and den Boer's methods contain elements similar to those used in differential cryptanalysis. The designers countered by doubling the number of rounds, FEAL-8. However, eight rounds also proved to be insufficient — in 1989, at the Securicom conference, Eli Biham and Adi Shamir described a differential attack on the cipher, mentioned in. Gilbert and Chassé subsequently published a statistical attack similar to differential cryptanalysis which requires 10000 pairs of chosen plaintexts.15¹²

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Feal

   fē′al, adj. (obs.) loyal, faithful.

2. Feal

   fēl, v.t. (prov.) to conceal.

Surnames Frequency by Census RecordsRate this definition:0.0 / 0 votes

1. FEAL

   According to the U.S. Census Bureau, Feal is ranked #106570 in terms of the most common surnames in America.
   
   The Feal surname appeared 167 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 would have the surname Feal.
   
   74.8% or 125 total occurrences were of Hispanic origin.
   19.7% or 33 total occurrences were White.
   2.9% or 5 total occurrences were Black.

Anagrams for FEAL »

1. flea

2. leaf

3. alef

How to pronounce FEAL?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say FEAL in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of FEAL in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of FEAL in Pythagorean Numerology is: 6

Popularity rank by frequency of use

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Feal
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Feal
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/FEAL
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=FEAL
6. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=FEAL
7. ^ Surnames Frequency by Census Records
   https://www.census.gov/topics/population/genealogy/data/2010_surnames.html