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M-325

In the history of cryptography, M-325, also known as SIGFOY, was an American rotor machine designed by William F. Friedman and built in 1944. Between 1944 and 1946, more than 1,100 machines were deployed within the United States Foreign Service. Its use was discontinued in 1946 because of faults in operation. Friedman applied for a patent on the M-325 on…

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Date invented
1944
Type
rotor machine

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M-325

Nodes7
Edges6
Triples13
Avg. degree1.71
Density0.285714
Components1

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M-325

Top relations

related to External links · 8
M-325 → Army Security Agency, Bob Lord, Converter M-325, Friedman M-325, Headquarters, July, Keying Instructions, Operating
related to Further reading · 3
M-325 → Converter M-325, Cryptologia, Louis Kruh
Date invented · 1
M-325 → 1944
Type · 1
M-325 → rotor machine

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Important terminology

rotor 1944 friedman machine enigma 1946 also sigfoy patent 877 565 converter history cryptography known american designed william built 100

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
M-325Date invented19441.00infobox
M-325Typerotor machine1.00infobox
M-325related to External linksOperating0.60section
M-325related to External linksKeying Instructions0.60section
M-325related to External linksConverter M-3250.60section
M-325related to External linksHeadquarters0.60section
M-325related to External linksArmy Security Agency0.60section
M-325related to External linksJuly0.60section
M-325related to External linksBob Lord0.60section
M-325related to External linksFriedman M-3250.60section
M-325related to Further readingLouis Kruh0.60section
M-325related to Further readingConverter M-3250.60section

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    Min side: 3
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