JADE (cipher machine) - Misplaced Pages

(Redirected from JADE (cypher machine)) Japanese World War II cipher machine

JADE was the codename given by US codebreakers to a Japanese World War II cipher machine. The Imperial Japanese Navy used the machine for communications from late 1942 until 1944. JADE was similar to another cipher machine, CORAL, with the main difference that JADE was used to encipher messages in katakana using an alphabet of 50 symbols.

According to the NSA, "apparently, the JADE machine did not stand up to heavy usage in the field, and, after an initial high volume of traffic, it was used much less." While CORAL traffic was also low, an important user was a Japanese representative, Vice Admiral Abe, to an Axis war-planning council whose reports coded in CORAL were intercepted and proved vital to Allied planning in the European theater.

External links

TENTATIVE LIST OF ENIGMA AND OTHER MACHINE USAGES 30 March 1945 — JADE is covered

References

^ https://www.nsa.gov/about/cryptologic-heritage/center-cryptologic-history/pearl-harbor-review/early-japanese/ Early Japanese Systems NSA Center for Cryptologic History

References from Japanese Misplaced Pages

Separate Mathematical Sciences Cryptography, Science Inc., 1982, “Deciphering Japanese Machine Cryptography in the United States and Its Theoretical Considerations”, Masataka Kato
Machine Cryptography and Modern Cryptanalysis, Cipher A. Deavours, Louis Kruh, ARTECH HOUSE, 1985
BIG MACHINES, Stephen J. Kelley, Aegean Park Press, 2001
"Naval Operational Communication History", Guard Corps School of Art, Showa 28
"Shin Takayama Tore 128," Miyauchi Kanto, Rokuko Publishing, 1975
History of Kitajima Island Naval Forces, "Cryptographic Printing Machine and Thin-Bar Type Replacement Board", Kakuji Ishigami, 1985
"A review of correspondence warfare and correspondence warfare measures", Yoshio Nakano, 1955

v t e Cipher machines
Rotor machines	CCM Enigma M-125 Fialka Hebern HX-63 KL-7 Lacida M-325 Mercury NEMA OMI RED SG-39 SG-41 SIGABA SIGCUM Singlet Typex
Mechanical	Bazeries cylinder C-36 C-52 CD-57 Cipher disk HC-9 Kryha Jefferson disk M-94 M-209 Reihenschieber Scytale
Teleprinter	5-UCO BID 770 DUDEK KW-26 KW-37 Lorenz SZ 40/42 Siemens and Halske T52 SIGTOT
Secure voice	BID 150 FASCINATOR KY-3 KY-58 KY-68 NESTOR OMNI SCIP Sectéra Secure Module SIGSALY STE STU-II STU-III VINSON
Other	JADE KG-84 KL-43 KL-51 Noreen Red Purple Pinwheel Rockex
Computer hardware	AES instruction set Intel SHA extensions IBM 4758 IBM 4764

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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References from Japanese Misplaced Pages