CH482257A - Encryption device - Google Patents

Encryption device

Info

Publication number
CH482257A
CH482257A CH340769A CH340769A CH482257A CH 482257 A CH482257 A CH 482257A CH 340769 A CH340769 A CH 340769A CH 340769 A CH340769 A CH 340769A CH 482257 A CH482257 A CH 482257A
Authority
CH
Switzerland
Prior art keywords
encryption device
encryption
Prior art date
Application number
CH340769A
Other languages
German (de)
Inventor
Florin Bengt
Loimaranta Kalevi
Original Assignee
Transvertex Ab
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 Transvertex Ab filed Critical Transvertex Ab
Publication of CH482257A publication Critical patent/CH482257A/en

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
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/06—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
    • G09C1/10—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member the connections being electrical

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Storage Device Security (AREA)
CH340769A 1969-03-05 1969-03-06 Encryption device CH482257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB01766/69A GB1235571A (en) 1969-03-05 1969-03-05 Improved ciphering machine

Publications (1)

Publication Number Publication Date
CH482257A true CH482257A (en) 1969-11-30

Family

ID=9992321

Family Applications (1)

Application Number Title Priority Date Filing Date
CH340769A CH482257A (en) 1969-03-05 1969-03-06 Encryption device

Country Status (4)

Country Link
US (1) US3557307A (en)
CH (1) CH482257A (en)
DE (1) DE1911175C3 (en)
GB (1) GB1235571A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657699A (en) * 1970-06-30 1972-04-18 Ibm Multipath encoder-decoder arrangement
US4195196A (en) * 1973-10-15 1980-03-25 International Business Machines Corporation Variant key matrix cipher system
USRE30957E (en) * 1973-10-15 1982-06-01 International Business Machines Corporation Variant key matrix cipher system
DE2829293C2 (en) * 1978-07-04 1985-12-05 ANT Nachrichtentechnik GmbH, 7150 Backnang Method for generating random strings of characters
JPH0727325B2 (en) * 1987-02-13 1995-03-29 沖電気工業株式会社 Encryption device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2089603A (en) * 1935-02-21 1937-08-10 Hagelin Boris Cesar Wilhelm Ciphering machine
NL225293A (en) * 1957-02-26
FR1589355A (en) * 1962-05-18 1970-03-31

Also Published As

Publication number Publication date
US3557307A (en) 1971-01-19
DE1911175C3 (en) 1982-03-11
DE1911175B2 (en) 1975-07-10
DE1911175A1 (en) 1970-09-24
GB1235571A (en) 1971-06-16

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Legal Events

Date Code Title Description
PL Patent ceased