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Besläktade ämnen

Ciphers (35)

Computer security (30)

Ciphers (25)

Computer security (11)

World War, 1939-1945 Cryptography (11)

Ciphers Juvenile literature (11)

Data encryption (Computer science) (10)

Coding theory (10)

Coding theory (9)

Ciphers History (9)

Ciphers History (9)

Ciphers Juvenile literature (8)

World War, 1939-1945 Fiction (8)

World War, 1939-1945 Cryptography (7)

World War, 1939-1945 Great Britain. Secret service (6)

Confidential communications (6)

Confidential communications (6)

Data encryption (Computer science) (6)

Data encryption (Computer science) History (6)

Data encryption (Computer science) History (6)

Machine ciphers (5)

Number theory (5)

Indians of North America Southwest, New Fiction (4)

Navajo language Juvenile fiction (4)

Telecommunication Security measures (4)

Computers Access control (4)

Number theory (4)

Internet (4)

Navajo language Fiction (4)

United States. Marine Corps Indian troops Fiction (4)

Navajo Indians Juvenile fiction (4)

Indians of North America Southwest, New Juvenile fiction (4)

World War, 1939-1945 Fiction (4)

Navajo Indians Juvenile fiction (4)

Ciphers Dictionaries (4)

Computer networks Security measures (4)

Navajo code talkers Fiction (4)

World War, 1939-1945 Juvenile fiction (4)

Navajo language Fiction (4)

Indians of North America Southwest, New Juvenile fiction (4)

Ciphers Dictionaries (4)

cryptology, to 1972 (4)

Navajo Indians Fiction (4)

United States. Marine Corps Participation, Indian Juvenile fiction (4)

Navajo code talkers Fiction (4)

Navajo Indians Fiction (4)

World War, 1939-1945 Juvenile fiction (4)

Telecommunication Security measures (4)

Indians of North America Southwest, New Fiction (4)

Navajo language Juvenile fiction (4)

World War, 1939-1945 Electronic intelligence (3)

Espionage, Soviet United States History Sources (3)

United States. National Security Agency History (3)

Electronic intelligence United States History (3)

ULTRA (Intelligence system) (3)

Telecommunication systems Data processing (3)

Government Communications Headquarters (3)

World War, 1939-1945 Personal narratives, British (3)

Electronic mail systems Data processing (3)

Electronic intelligence United States History (3)

World War, 1939-1945 Great Britain. Electronic intelligence (3)

Computers Access control (3)

Electronic intelligence Great Britain History (3)

Spies Soviet Union History Sources (2)

Spies United States Sources (2)

Coding theory Congresses (2)

Mathematical recreations (2)

Matter (2)

Electronic mail systems Security measures Data processing (2)

United States Foreign relations 1933-1945 (2)

Spies United States History Sources (2)

Espionage, Soviet United States History (2)

Data protection (2)

Geometry Famous problems (2)

Magic squares (2)

Computer security Congresses (2)

Soviet Union. Komitet gosudarstvennoæi bezopasnosti History (2)

World War, 1939-1945 Diplomatic history (2)

Communist Party of the United States of America History Sources (2)

Spies Soviet Union Sources (2)

Data protection (2)

Java (Computer program language) (2)

Astrology (2)

Mathematical recreations (2)

PGP (Computer file) (2)

Machine ciphers (2)

Soviet Union. Glavnoe razvedyvatel§noe upravlenie History (2)

World War, 1939-1945 Diplomatic history (2)

Communism United States History Sources (2)

Communism United States Sources (2)

Java (Computer program language) (2)

Ciphers. [from old catalog] (2)

Space and time (2)

Geometry Famous problems (2)

Telecommunication systems Security measures Data processing (2)

Cryptographers United States Biography (2)

United States. Signal Security Agency History (2)

United States Foreign relations 1933-1945 (2)

America Norse (1)

Navajo code talkers (1)

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Ämne: Cryptography

Underämnen

Cryptography (60 verk)

Cryptography Children's nonfiction (70 verk)

Cryptography Congresses (1 verk)

Cryptography Congresses (4 verk)

Cryptography Data processing (1 verk)

Cryptography Data processing (1 verk)

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