FR829244A - Improvements to cryptographic machines - Google Patents

Improvements to cryptographic machines

Info

Publication number
FR829244A
FR829244A FR829244DA FR829244A FR 829244 A FR829244 A FR 829244A FR 829244D A FR829244D A FR 829244DA FR 829244 A FR829244 A FR 829244A
Authority
FR
France
Prior art keywords
cryptographic machines
cryptographic
machines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR829244A publication Critical patent/FR829244A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C3/00—Typewriters for ciphering or deciphering cryptographic text
    • G09C3/02—Typewriters for ciphering or deciphering cryptographic text with auxiliary keys or keyboards acting on the original keys or keyboards
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C3/00—Typewriters for ciphering or deciphering cryptographic text
FR829244D 1936-08-27 1937-08-02 Improvements to cryptographic machines Expired FR829244A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US98114A US2116731A (en) 1936-08-27 1936-08-27 Coding and decoding machine
US98271A US2116732A (en) 1936-08-27 1936-08-28 Coding and decoding machine
US98439A US2116733A (en) 1936-08-27 1936-08-29 Coding and decoding machine

Publications (1)

Publication Number Publication Date
FR829244A true FR829244A (en) 1938-06-15

Family

ID=27367467

Family Applications (1)

Application Number Title Priority Date Filing Date
FR829244D Expired FR829244A (en) 1936-08-27 1937-08-02 Improvements to cryptographic machines

Country Status (4)

Country Link
US (3) US2116731A (en)
DE (1) DE737791C (en)
FR (1) FR829244A (en)
GB (3) GB490165A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941716A (en) * 1960-06-21 Hebel
US4124311A (en) * 1940-02-05 1978-11-07 The United States Of America As Represented By The Secretary Of The Navy Mechanical movements for coding machines
US4155659A (en) * 1940-02-05 1979-05-22 The United States Of America As Represented By The Secretary Of The Navy Printing and coding machine
US2434681A (en) * 1943-02-13 1948-01-20 Bell Telephone Labor Inc Remotely controlled electrical calculator
DE974447C (en) * 1943-05-15 1960-12-29 Normalzeit G M B H Encryption device
US6175625B1 (en) * 1944-12-15 2001-01-16 The United States Of America As Represented By The National Security Agency Control circuits for electric coding machines
US2464608A (en) * 1946-01-24 1949-03-15 Ibm Record controlled printing apparatus
US2696553A (en) * 1948-01-22 1954-12-07 Int Standard Electric Corp Electric switch
DE960995C (en) * 1952-01-23 1957-03-28 Boris Caesar Wilhelm Hagelin Triggering and drive reversing device for mechanically driven encryption devices
US4143978A (en) * 1978-05-04 1979-03-13 The United States Of America As Represented By The Secretary Of The Navy Electro-mechanical cipher machine
US8488779B2 (en) 2011-07-25 2013-07-16 Grey Heron Technologies, Llc Method and system for conducting high speed, symmetric stream cipher encryption

Also Published As

Publication number Publication date
US2116733A (en) 1938-05-10
DE737791C (en) 1943-07-28
GB489321A (en) 1938-07-25
US2116731A (en) 1938-05-10
GB490165A (en) 1938-08-10
GB490164A (en) 1938-08-10
US2116732A (en) 1938-05-10

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