FR827312A - Device for establishing encrypted messages and for decrypting these messages - Google Patents

Device for establishing encrypted messages and for decrypting these messages

Info

Publication number
FR827312A
FR827312A FR827312DA FR827312A FR 827312 A FR827312 A FR 827312A FR 827312D A FR827312D A FR 827312DA FR 827312 A FR827312 A FR 827312A
Authority
FR
France
Prior art keywords
messages
decrypting
establishing encrypted
establishing
encrypted messages
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 FR827312A publication Critical patent/FR827312A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Operated Clutches (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
FR827312D 1936-05-22 1937-05-21 Device for establishing encrypted messages and for decrypting these messages Expired FR827312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81178A US2138639A (en) 1936-05-22 1936-05-22 System of coding and decoding

Publications (1)

Publication Number Publication Date
FR827312A true FR827312A (en) 1938-04-25

Family

ID=22162572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR827312D Expired FR827312A (en) 1936-05-22 1937-05-21 Device for establishing encrypted messages and for decrypting these messages

Country Status (5)

Country Link
US (2) US2138639A (en)
CH (1) CH38639A (en)
DE (1) DE732804C (en)
FR (1) FR827312A (en)
GB (1) GB481983A (en)

Also Published As

Publication number Publication date
CH38639A (en) 1907-11-15
GB481983A (en) 1938-03-22
US2138639A (en) 1938-11-29
USRE22523E (en) 1944-07-25
DE732804C (en) 1943-03-19

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