BATON

For other uses, see Baton (disambiguation).

BATON
General
Designers	National Security Agency
Cipher detail
Key sizes	320 bits (160 effective)
Block sizes	96, 128 bits

BATON is a Type 1 block cipher in use since at least 1995 by the United States government to secure classified information.

While the BATON algorithm itself is secret (as is the case with all algorithms in the NSA's Suite A), the public PKCS#11 standard includes some general information about how it is used. It has a 320-bit key and uses a 128-bit block in most modes, and also supports a 96-bit electronic codebook mode. 160 bits of the key are checksum material. It supports a "shuffle" mode of operation, like the NSA cipher JUNIPER. It may use up to 192 bits as an initialization vector, regardless of the block size.^[1]

In response to a Senate question about encrypted video links, NSA said that BATON could be used for encryption at speeds higher than those possible with Skipjack.^[2]

Usage

BATON is used in a variety of products and standards:

APCO Project 25 (Public standard for land mobile radio) (Algorithm IDs 01 and 41)
PKCS#11 (Public standard for encryption tokens)
CDSA/CSSM (Another public standard)
HAIPE-IS (NSA's version of IPsec)
FNBDT (Advanced flexible voice security protocol)
Thales Datacryptor 2000 (a British network-encryption box)
SecNet-11 (a crypto-secure 802.11b PC Card, based on the Sierra chip)
Fortezza Plus (a PC Card product, used in the STE)
SafeXcel-3340 (a HAIPIS network-encryption box)
Numerous embeddable encryption modules: AIM, CYPRIS, MYK-85, Sierra (microchip), etc.

References

External links

Block ciphers (security summary)

Common algorithms	AES Blowfish DES (Internal Mechanics, Triple DES) Serpent Twofish

Less common algorithms	Camellia CAST-128 IDEA RC2 RC5 RC6 SEED ARIA Skipjack TEA XTEA

Other algorithms	3-Way Akelarre Anubis 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 GOST Grand Cru Hasty Pudding cipher Hierocrypt ICE IDEA NXT Intel Cascade Cipher Iraqi KASUMI KeeLoq KHAZAD Khufu and Khafre KN-Cipher Kuznyechik Ladder-DES Libelle 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 RC6 REDOC Red Pike S-1 SAFER SAVILLE SC2000 SHACAL SHARK Simon SM4 Speck Spectr-H64 Square SXAL/MBAL Threefish Treyfer UES Xenon xmx XXTEA Zodiac

Design	Feistel network Key schedule Lai-Massey scheme Product cipher S-box P-box SPN 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 Mod n Related-key Slide Rotational Timing XSL Interpolation Partitioning Davies' Rebound Weak key Tau Chi-square Time/memory/data tradeoff

Standardization	AES process CRYPTREC NESSIE

Utilization	Initialization vector Mode of operation Padding

Cryptography

History of cryptography Cryptanalysis Outline of cryptography

Symmetric-key algorithm Block cipher Stream cipher Public-key cryptography Cryptographic hash function Message authentication code Random numbers Steganography

Category Portal WikiProject

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BATON

Usage

See also

References

External links