FR23483E - Encryption and decryption device for telegraph system - Google Patents

Encryption and decryption device for telegraph system

Info

Publication number
FR23483E
FR23483E FR23483A FR23483DA FR23483E FR 23483 E FR23483 E FR 23483E FR 23483 A FR23483 A FR 23483A FR 23483D A FR23483D A FR 23483DA FR 23483 E FR23483 E FR 23483E
Authority
FR
France
Prior art keywords
encryption
decryption device
telegraph system
telegraph
decryption
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
FR23483A
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR23483E publication Critical patent/FR23483E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR23483A 1918-12-09 1920-06-28 Encryption and decryption device for telegraph system Expired FR23483E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US23483XA 1918-12-09 1918-12-09
FR524197T 1920-06-23
FR23483T 1920-06-28

Publications (1)

Publication Number Publication Date
FR23483E true FR23483E (en) 1921-11-30

Family

ID=44260166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR23483A Expired FR23483E (en) 1918-12-09 1920-06-28 Encryption and decryption device for telegraph system

Country Status (1)

Country Link
FR (1) FR23483E (en)

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