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Kalyna (cipher)

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Block cipher

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Kalyna
General
First published	2010; 2014/2015 (Standard)
Related to	Rijndael (AES)
Certification	DSTU 7624:2014 (Ukraine)
Cipher detail
Key sizes	128, 256 or 512 bits
Block sizes	128, 256 or 512 bits
Structure	SPN
Rounds	10, 14 or 18 (depending on key size)

Kalyna (Ukrainian: Калина,Viburnum opulus) is a symmetricblock cipher. It supports block sizes of 128, 256 or 512 bits; the key length is either equal to or double the block size.

Kalyna was adopted as the national encryption standard ofUkraine in 2015 (standard DSTU 7624:2014) after holding Ukrainian national cryptographic competition. Kalyna is asubstitution–permutation network and its design is based on theRijndael (AES) encryption function having quite different key schedule, another set of four different S-boxes and increasedMDS matrix size.

Kalyna has 10 rounds for 128-bit keys, 14 rounds for 256-bit keys and 18 rounds for 512-bit keys. Independent researchers proposed some attacks on reduced-round variants of Kalyna, but all of them have a very high complexity and none of them are practical.

Word size	Block size	Key size	Identification	Rounds
64 bits	128 bits	1×128 = 128 bits	Kalyna-128/128	10
	128 bits	2×128 = 256 bits	Kalyna-128/256	14
	256 bits	1×256 = 256 bits	Kalyna-256/256	14
	256 bits	2×256 = 512 bits	Kalyna-256/512	18
	512 bits	1×512 = 512 bits	Kalyna-512/512	18

References

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Roman Oliynykov, Ivan Gorbenko, Oleksandr Kazymyrov, Victor Ruzhentsev, Oleksandr Kuznetsov, Yurii Gorbenko, Oleksandr Dyrda, Viktor Dolgov, Andrii Pushkaryov, Ruslan Mordvinov, Dmytro Kaidalov. A New Encryption Standard of Ukraine: The Kalyna Block Cipher. IACR Cryptology ePrint Archive, p650 (2015)https://eprint.iacr.org/2015/650
Roman Oliynykov, Ivan Gorbenko, Viktor Dolgov and Viktor Ruzhentsev. Results of Ukrainian national public cryptographic competition. Tatra Mt. Math. Publ. 47 (2010), 99–113. DOI: 10.2478/v10127-010-0033-6https://www.degruyter.com/view/j/tmmp.2010.47.issue-1/v10127-010-0033-6/v10127-010-0033-6.xml
Roman Oliynykov. Kalyna block cipher presentation (in English)http://www.slideshare.net/oliynykov/kalyna-english
Akshima, Donghoon Chang, Mohona Ghosh, Aarushi Goel, Somitra Kumar Sanadhya. Single Key Recovery Attacks on 9-Round Kalyna-128/256 and Kalyna-256/512. Volume 9558 of the series Lecture Notes in Computer Science, pp. 119–135.https://link.springer.com/chapter/10.1007/978-3-319-30840-1_8
Riham Altawy, Ahmed Abdelkhalek, Amr M. Youssef. A Meet-in-the-Middle Attack on Reduced-Round Kalyna-b/2b. IEICE Transactions on Information and Systems, Vol. E99-D, No.4, pp. 1246–1250.http://search.ieice.org/bin/summary.php?id=e99-d_4_1246

External links

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Reference implementation of the Kalyna block cipher (DSTU 7624:2014)

v t e Block ciphers (security summary)
Common algorithms	AES Blowfish DES (internal mechanics,Triple DES) Serpent SM4 Twofish
Less common algorithms	ARIA Camellia CAST-128 GOST IDEA LEA RC5 RC6 SEED Skipjack TEA XTEA
Other algorithms	3-Way Adiantum Akelarre Anubis Ascon BaseKing BassOmatic BATON BEAR and LION CAST-256 Chiasmus CIKS-1 CIPHERUNICORN-A CIPHERUNICORN-E CLEFIA CMEA Cobra COCONUT98 Crab Cryptomeria/C2 CRYPTON CS-Cipher DEAL DES-X DFC E2 FEAL FEA-M FROG G-DES Grand Cru Hasty Pudding cipher Hierocrypt ICE IDEA NXT Intel Cascade Cipher Iraqi Kalyna KASUMI KeeLoq KHAZAD Khufu and Khafre KN-Cipher Kuznyechik Ladder-DES LOKI (97,89/91) Lucifer M6 M8 MacGuffin Madryga MAGENTA MARS Mercy MESH MISTY1 MMB MULTI2 MultiSwap New Data Seal NewDES Nimbus NOEKEON NUSH PRESENT Prince Q QARMA RC2 REDOC Red Pike S-1 SAFER SAVILLE SC2000 SHACAL SHARK Simon Speck Spectr-H64 Square SXAL/MBAL Threefish Treyfer UES xmx XXTEA Zodiac
Design	Feistel network Key schedule Lai–Massey scheme Product cipher S-box P-box SPN Confusion and diffusion Round Avalanche effect Block size Key size Key whitening (Whitening transformation)
Attack (cryptanalysis)	Brute-force (EFF DES cracker) MITM Biclique attack 3-subset MITM attack Linear (Piling-up lemma) Differential Impossible Truncated Higher-order Differential-linear Distinguishing (Known-key) Integral/Square Boomerang Modn Related-key Slide Rotational Side-channel Timing Power-monitoring Electromagnetic Acoustic Differential-fault XSL Interpolation Partitioning Rubber-hose Black-bag Davies Rebound Weak key Tau Chi-square Time/memory/data tradeoff
Standardization	AES process CRYPTREC NESSIE NSA Suite B CNSA
Utilization	Initialization vector Mode of operation Padding

v t e Cryptography
General	History of cryptography Outline of cryptography Classical cipher Cryptographic protocol Authentication protocol Cryptographic primitive Cryptanalysis Cryptocurrency Cryptosystem Cryptographic nonce Cryptovirology Hash function Cryptographic hash function Key derivation function Secure Hash Algorithms Digital signature Kleptography Key (cryptography) Key exchange Key generator Key schedule Key stretching Keygen Machines Cryptojacking malware Ransomware Random number generation Cryptographically secure pseudorandom number generator (CSPRNG) Pseudorandom noise (PRN) Secure channel Insecure channel Subliminal channel Encryption Decryption End-to-end encryption Harvest now, decrypt later Information-theoretic security Plaintext Codetext Ciphertext Shared secret Trapdoor function Trusted timestamping Key-based routing Onion routing Garlic routing Kademlia Mix network
Mathematics	Cryptographic hash function Block cipher Stream cipher Symmetric-key algorithm Authenticated encryption Public-key cryptography Quantum key distribution Quantum cryptography Post-quantum cryptography Message authentication code Random numbers Steganography
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