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- REDOC abstract "In cryptography, REDOC II and REDOC III are block ciphers designed by Michael Wood (cryptographer) for Cryptech Inc and are optimised for use in software. Both REDOC ciphers are patented.REDOC II (Cusick and Wood, 1990) operates on 80-bit blocks with a 160-bit key. The cipher has 10 rounds, and uses key-dependent S-boxes and masks used to select the tables for use in different rounds of the cipher. Cusick found an attack on one round, and Biham and Shamir (1991) used differential cryptanalysis to attack one round with 2300 encryptions. Biham and Shamir also found a way of recovering three masks for up to four rounds faster than exhaustive search. A prize of US$5,000 was offered for the best attack on one round of REDOC-II, and $20,000 for the best practical known-plaintext attack.REDOC III is a more efficient cipher. It operates on an 80-bit block and accepts a variable-length key of up to 20,480 bits. The algorithm consists only of XORing key bytes with message bytes, and uses no permutations or substitutions. Ken Shirriff describes a differential attack on REDOC-III requiring 220 chosen plaintexts and 230 memory.".
- REDOC wikiPageExternalLink cs91-18.ps.gz.
- REDOC wikiPageExternalLink redoc.ps.
- REDOC wikiPageID "1131119".
- REDOC wikiPageRevisionID "542499281".
- REDOC hasPhotoCollection REDOC.
- REDOC subject Category:Block_ciphers.
- REDOC type Abstraction100002137.
- REDOC type BlockCiphers.
- REDOC type Cipher106254239.
- REDOC type Communication100033020.
- REDOC type Message106253690.
- REDOC comment "In cryptography, REDOC II and REDOC III are block ciphers designed by Michael Wood (cryptographer) for Cryptech Inc and are optimised for use in software. Both REDOC ciphers are patented.REDOC II (Cusick and Wood, 1990) operates on 80-bit blocks with a 160-bit key. The cipher has 10 rounds, and uses key-dependent S-boxes and masks used to select the tables for use in different rounds of the cipher.".
- REDOC label "REDOC".
- REDOC label "REDOC".
- REDOC label "REDOC".
- REDOC label "REDOC".
- REDOC sameAs REDOC.
- REDOC sameAs REDOC.
- REDOC sameAs m.048z2h.
- REDOC sameAs Q2028197.
- REDOC sameAs Q2028197.
- REDOC sameAs REDOC.
- REDOC wasDerivedFrom REDOC?oldid=542499281.
- REDOC isPrimaryTopicOf REDOC.