Noreen - Wikipedia

Noreen on display at Bletchley Park museum

Noreen, or BID 590, was an off-line one-time tape cipher machine of British origin.

Usage

As well as being used by the United Kingdom, Noreen was used by Canada. It was widely used in diplomatic stations. According to the display note on a surviving unit publicly displayed at Bletchley Park in the United Kingdom, the system was predominantly used "by the foreign office in British embassies overseas where the electricity supply was unreliable."

Usage lasted from the mid-1960s through 1990.

Compatibility

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It was completely compatible with Rockex.

Power Supply

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The units were powered by two batteries of six and twelve volts respectively, though some were known to have been powered by mains.

Other uses of the name "Noreen"

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Noreen was the name of a wooden dragger that was acquired by the U.S. Navy during World War II and converted into the minesweeper USS Heath Hen (AMc-6).
Noreen is a common name in the Americas, Ireland, Scotland, and the Middle East. Also spelt Naureen, Noirin and Nowrin (نورين). In Arabic, the word means "luminous"'. In Ireland and Scotland, 'Noreen' is the anglicized version of 'Nóirín', which is the diminutive of 'Nora'.

External links

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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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