MISTY1

"MISTY" redirects here. For other uses, see Misty.
MISTY1
General
Designers
  • Mitsuru Matsui,
  • Tetsuya Ichikawa,
  • Toru Sorimachi,
  • Toshio Tokita,
  • Atsuhiro Yamagishi
First published1995
SuccessorsCamellia, KASUMI
CertificationCRYPTREC (Candidate), NESSIE
Cipher detail
Key sizes128 bits
Block sizes64 bits
StructureNested Feistel network
Rounds4×n (8 recommended)
Best public cryptanalysis
Integral cryptanalysis leading to full key recovery with 263.9999 chosen ciphertexts and 279 time, or 264 chosen ciphertexts and 269.5 time.[1]

In cryptography, MISTY1 (or MISTY-1) is a block cipher designed in 1995 by Mitsuru Matsui and others for Mitsubishi Electric.[2][3]

MISTY1 is one of the selected algorithms in the European NESSIE project, and has been among the cryptographic techniques recommended for Japanese government use by CRYPTREC in 2003; however, it was dropped to "candidate" by CRYPTREC revision in 2013. However, it was successfully broken in 2015 by Yosuke Todo using integral cryptanalysis; this attack was improved in the same year by Achiya Bar-On.[1]

"MISTY" can stand for "Mitsubishi Improved Security Technology"; it is also the initials of the researchers involved in its development: Matsui Mitsuru, Ichikawa Tetsuya, Sorimachi Toru, Tokita Toshio, and Yamagishi Atsuhiro.[4]

MISTY1 is covered by patents, although the algorithm is freely available for academic (non-profit) use in RFC 2994, and there's a GPLed implementation by Hironobu Suzuki (used by, e.g. Scramdisk).

Security

MISTY1 is a Feistel network with a variable number of rounds (any multiple of 4), though 8 are recommended. The cipher operates on 64-bit blocks and has a key size of 128 bits. MISTY1 has an innovative recursive structure; the round function itself uses a 3-round Feistel network. MISTY1 claims to be provably secure against linear and differential cryptanalysis.

KASUMI

KASUMI is a successor of the MISTY1 cipher which was supposed to be stronger than MISTY1 and has been adopted as the standard encryption algorithm for European mobile phones. In 2005, KASUMI was broken, and in 2010 a new paper was published (explained below) detailing a practical attack on the cipher; see the article for more details.

In the paper "Block Ciphers and Stream Ciphers" by Alex Biryukov, it is noted that KASUMI, also termed A5/3, is a strengthened version of block cipher MISTY1 running in a Counter mode.[5]

However, in 2010 Dunkelman, Keller, and Shamir showed that KASUMI is not as strong as MISTY1;[6] the KASUMI attack will not work against MISTY1.

References

  1. ^ a b Achiya Bar-On (30 July 2015). "A 270 Attack on the Full MISTY1" (PDF).
  2. ^ Mitsuru Matsui (1997). Block encryption algorithm MISTY. Fast Software Encryption, 4th International Workshop, FSE '97, LNCS 1267. pp. 64–74. ISBN 9783540632474.
  3. ^ Mitsuru Matsui (July 1996). "Block encryption algorithm MISTY". Technical report of IEICE ISEC96-11 (PDF). Archived from the original (PDF) on August 23, 2000.
  4. ^ "Episodes in the development of MISTY". Archived from the original on 2005-03-22.
  5. ^ Alex Biryukov (2004). "Block Ciphers and Stream Ciphers: The State of the Art".
  6. ^ Orr Dunkelman and Nathan Keller and Adi Shamir (2010). "A Practical-Time Attack on the KASUMI Cryptosystem Used in GSM and 3G Telephony". Cryptology ePrint Archive.

Read other articles:

Nan Martin

American actress (1927–2010) Nan MartinMartin (right) and Pat Hingle in The Incredible World of Horace Ford, a 1963 episode ofThe Twilight ZoneBorn(1927-07-15)July 15, 1927Decatur, Illinois, U.S.DiedMarch 4, 2010(2010-03-04) (aged 82)Malibu, California, U.S.Occupation(s)Actress, comedianYears active1952–2005Spouses Robert Emmett Dolan ​ ​(m. 1948; div. 1967)​ Harry Gesner ​(m. 1970)​[1][2 ...

 

中国人民解放军陆军第十四集团军炮兵旅

陆军第十四集团军炮兵旅陆军旗存在時期1950年 - 2017年國家或地區 中国效忠於 中国 中国共产党部門 中国人民解放军陆军種類炮兵功能火力支援規模约90门火炮直屬南部战区陆军參與戰役1979年中越战争 中越边境冲突 老山战役 成都军区对越轮战 紀念日10月25日 陆军第十四集团军炮兵旅（英語：Artillery Brigade, 14th Army），是曾经中国人民解放军陆军第十四集团军下属�...

 

Kaze no Stigma

Japanese light novel series and its franchise Kaze no StigmaCover of the first light novel volume (Kindle edition)風の聖痕(Kaze no Sutiguma)GenreAction, romance, supernatural Light novelWritten byTakahiro YamatoIllustrated byHanamaru NantoPublished byFujimi ShoboImprintFujimi Fantasia BunkoDemographicMaleOriginal runJanuary 18, 2002 – March 20, 2010Volumes12 MangaKaze no Stigma -Kouen no Miko-Written byTakahiro YamatoIllustrated byNeko MiyakaiPublished byFu...

Ngultrum Bhutan

Ngultrum BhutanISO 4217KodeBTNDenominasiSubsatuan 1/100chhertumSimbolNu. chhertumCh.Uang kertasNu.1, Nu.5, Nu.10, Nu.20, Nu.50, Nu.100, Nu.500, Nu.1000[1][2]Uang koin Sering digunakanCh.20, Ch.25, Ch.50, Nu.1. Jarang digunakanCh.5, Ch.10DemografiPengguna Bhutan (bersama dengan Rupee India)EmisiOtoritas moneterOtoritas Moneter Kerajaan Bhutan Situs webwww.rma.org.btValuasiInflasi5.2% SumberRoyal Monetary Authority of Bhutan, 2015 est.Pat...

 

Bundesautobahn 226

A226LetakNegara bagian:Schleswig-HolsteinSistem jalan bebas hambatanJalan di JermanAutobahnen • BundesstraßenJalan Motor • Jalan Bebas Hambatan Federal Bundesautobahn 226 (diterjemahkan dari bahasa Jerman berarti Jalan Motor Federal 226, disingkat Autobahn 226, BAB 226 atau A 226) adalah sebuah autobahn di Jerman. Jalan ini adalah cabang pendek dari A 1 di sebalah utara Lübeck, kadang disebut Nordtangente Lübeck (Tangen utara Lübeck). Jalan ini...

 

Alexandria, New Hampshire

Town in New Hampshire, United StatesAlexandria, New HampshireTownTown hallLocation in Grafton County, New HampshireCoordinates: 43°36′41″N 71°47′34″W / 43.61139°N 71.79278°W / 43.61139; -71.79278CountryUnited StatesStateNew HampshireCountyGraftonIncorporated1782Government • Board of SelectmenGeorge Tuthill, ChairRobert PiehlerChet CaronArea[1] • Total43.4 sq mi (112.3 km2) • Land43.2 sq m...

Wayne County, Ohio

County in Ohio, United States For other uses, see Wayne County. Not to be confused with Wayne, Ohio. County in OhioWayne CountyCountyThe Wayne County Courthouse in September 2004 FlagSealLocation within the U.S. state of OhioOhio's location within the U.S.Coordinates: 40°50′N 81°53′W / 40.83°N 81.89°W / 40.83; -81.89Country United StatesState OhioFoundedJanuary 4, 1812 (date organized; formed 1808)[1]Named forGeneral Anthony WayneSeatWoosterLa...

 

Accademia Aeronautica

Coordinate: 40°49′19.2″N 14°08′27.6″E / 40.822°N 14.141°E40.822; 14.141 Accademia Aeronautica Descrizione generaleAttiva5 novembre 1923 - oggi Nazione Italia TipoAccademia militare CompitiFormazione degli ufficiali dell'Aeronautica Militare SedePozzuoli (NA) Anniversari10 novembre DecorazioniMedaglia di bronzo al valor civile Sito internethttps://www.accademiaaeronautica.it/ su www.aeronautica.difesa.it Parte diAeronautica militare, Comando Scuole A.M. - ...

 

Charity Shield FA 1976

Charity Shield FA 1976TurnamenCharity Shield FA Liverpool Southampton 1 0 Tanggal14 Agustus 1976StadionStadion Wembley, London← 1975 1977 → Charity Shield FA 1976 adalah pertandingan sepak bola antara Liverpool dan Southampton yang diselenggarakan pada 14 Agustus 1976 di Stadion Wembley, London. Pertandingan ini merupakan pertandingan ke-54 dari penyelenggaraan Charity Shield FA. Pertandingan ini dimenangkan oleh Liverpool dengan skor 1–0.[1] Pertandingan Liverpool v Sou...

趙家驤

追晉陸軍二級上將趙家驤將軍个人资料出生1910年 大清河南省衛輝府汲縣逝世1958年8月23日(1958歲—08—23)（47—48歲） † 中華民國福建省金門縣国籍 中華民國政党 中國國民黨获奖 青天白日勳章（追贈）军事背景效忠 中華民國服役 國民革命軍 中華民國陸軍服役时间1924年－1958年军衔 二級上將 （追晉）部队四十七師指挥東北剿匪總司令部參謀長陸軍�...

 

Dunston railway station

Railway station in Tyne and Wear, England DunstonGeneral informationLocationDunston, GatesheadEnglandCoordinates54°57′00″N 1°38′29″W / 54.9499976°N 1.6414408°W / 54.9499976; -1.6414408Grid referenceNZ230617Owned byNetwork RailManaged byNorthern TrainsTransit authorityTyne and Wear PTEPlatforms2Tracks2Other informationStation codeDOTClassificationDfT category F2HistoryOriginal companyNorth Eastern RailwayPre-groupingNorth Eastern RailwayPost-grouping London ...

 

Municipalities of Catalonia

See also: Local government in Spain Catalonia, with its municipalities, comarques, and provinces Population map of Catalonia by municipality. Catalonia is (as of 2018) divided into 947 municipalities. Each municipality typically represents one significant urban settlement, of any size from village to city, with its surrounding land. This is not always the case, though. Many municipalities have merged as a result of rural depopulation or simply for greater efficiency. Some large urban areas, ...

土库曼斯坦总统

土库曼斯坦总统土库曼斯坦国徽土库曼斯坦总统旗現任谢尔达尔·别尔德穆哈梅多夫自2022年3月19日官邸阿什哈巴德总统府（Oguzkhan Presidential Palace）機關所在地阿什哈巴德任命者直接选举任期7年，可连选连任首任萨帕尔穆拉特·尼亚佐夫设立1991年10月27日 土库曼斯坦土库曼斯坦政府与政治 国家政府 土库曼斯坦宪法 国旗 国徽 国歌 立法機關（英语：National Council of Turkmenistan） ...

 

內閣總理大臣

  关于与「內閣總理大臣」標題相近或相同的条目页，請見「內閣總理大臣 (消歧義)」。 日本國內閣總理大臣內閣總理大臣紋章現任岸田文雄自2021年10月4日在任尊称總理、總理大臣、首相、阁下官邸總理大臣官邸提名者國會全體議員選出任命者天皇任期四年，無連任限制[註 1]設立法源日本國憲法先前职位太政大臣（太政官）首任伊藤博文设立1885年12月22日，...

 

Howard Hallett

Australian RL coach and former Australia international rugby league footballer Howard HallettPersonal informationFull nameGeorge Ernest Howard HallettBorn(1890-04-13)13 April 1890Sydney, New South Wales, AustraliaDied28 May 1970(1970-05-28) (aged 80)Maroura, New South Wales, AustraliaPlaying informationHeight175 cm (5 ft 9 in)Weight80 kg (12 st 8 lb)PositionFullback, Centre Club Years Team Pld T G FG P 1909–24 South Sydney 155 23 22 12 137 Represe...

Steve Tisch

Steve TischLahirSteven Elliot Tisch[1]14 Februari 1949 (umur 75)Lakewood Township, New JerseyAlmamaterTufts UniversityOrganisasiNew York GiantsGelarKetua/Wakil Presiden EksekutifMasa jabatan2005–presentSuami/istriPasangan 1 (bercerai)Jamie Alexander (1996–?; bercerai)Anaktiga dengan AlexanderOrang tuaJoan TischPreston Robert TischKeluargaJonathan Tisch (saudara) Laurie Tisch (saudari) Steven Elliot Tisch (lahir 14 Februari 1949) adalah seorang produser dan pengusaha asal Ame...

 

University of South Dakota School of Law

Public law school in Vermillion, South Dakota, US University of South Dakota Knudson School of LawCoat of Arms of the School of LawMottoVeritasParent schoolUniversity of South DakotaEstablished1901; 123 years ago (1901)School typePublic law schoolParent endowment$401.5 million[1]DeanNeil Fulton[2][3]LocationVermillion, South Dakota, U.S.42°47′11″N 96°55′39″W / 42.78639°N 96.92750°W / 42.78639; -96.92750Enrollment168...

 

Weightlifting at the 1924 Summer Olympics

Weightlifting at the Olympics Weightliftingat the Games of the VIII OlympiadWeightlifting pictogramVenueVélodrome d'hiverDate21 July - 23 July 1924No. of events5 (5 men, 0 women)Competitors107 from 16 nations← 19201928 → Weightlifting at the1924 Summer Olympics−60 kgmen−67.5 kgmen−75 kgmen−82.5 kgmen+82.5 kgmenvte The weightlifting competition at the 1924 Summer Olympics in Paris consisted of five weight classes, all for men only.[1] Medal sum...

Gustavo Petro

Pour les articles homonymes, voir Petro (homonymie). Gustavo Petro Portrait officiel de Gustavo Petro (2022). Fonctions Président de la république de Colombie En fonction depuis le 7 août 2022 (1 an, 11 mois et 9 jours) Élection 19 juin 2022 Vice-président Francia Márquez Gouvernement Petro Prédécesseur Iván Duque Président de Colombia Humana En fonction depuis le 18 décembre 2021(5 ans, 6 mois et 28 jours) Élection 18 décembre 2021 Vice-président ...

 

Edwin Salisbury Carman

American mechanical engineer (1878-1951) Edwin S. Carman Edwin Salisbury Carman (January 31, 1878 - March 20, 1951) was an American mechanical engineer, founder and head of Edwin S. Carman, Inc., engineers and foundry consultants,[1][2] and inventor. He was president of the American Society of Mechanical Engineers in the year 1921-22.[3] Biography Family and education Edwin Salisbury Carman was born at Prairie Depot in Wood County, Ohio as son of Howard Carmen and Mine...