CA947661A - Apparatus for producing coding pulse sequences - Google Patents

Apparatus for producing coding pulse sequences

Info

Publication number
CA947661A
CA947661A CA120,708A CA120708A CA947661A CA 947661 A CA947661 A CA 947661A CA 120708 A CA120708 A CA 120708A CA 947661 A CA947661 A CA 947661A
Authority
CA
Canada
Prior art keywords
pulse sequences
coding pulse
producing coding
producing
sequences
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
CA120,708A
Other versions
CA120708S (en
Inventor
Kurt Ehrat
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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
Priority claimed from CH1259270A external-priority patent/CH530742A/en
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Application granted granted Critical
Publication of CA947661A publication Critical patent/CA947661A/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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
CA120,708A 1970-08-24 1971-08-17 Apparatus for producing coding pulse sequences Expired CA947661A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1259270A CH530742A (en) 1970-08-24 1970-08-24 Device for generating key pulse sequences
CH1080771 1971-07-22

Publications (1)

Publication Number Publication Date
CA947661A true CA947661A (en) 1974-05-21

Family

ID=25707318

Family Applications (1)

Application Number Title Priority Date Filing Date
CA120,708A Expired CA947661A (en) 1970-08-24 1971-08-17 Apparatus for producing coding pulse sequences

Country Status (5)

Country Link
CA (1) CA947661A (en)
DE (1) DE2142413C3 (en)
FR (1) FR2107065A5 (en)
GB (1) GB1364518A (en)
SE (1) SE375673B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2966235D1 (en) * 1979-11-03 1983-11-03 Patelhold Patentverwertung Method and device for generating secret keys
SE435979B (en) * 1983-03-14 1984-10-29 Ericsson Telefon Ab L M Device for encryption / decryption of digital messages
ATE61174T1 (en) * 1983-12-24 1991-03-15 Ant Nachrichtentech METHOD OF GENERATION OF RANDOM SIMILAR BINARY CHARACTER SEQUENCES.

Also Published As

Publication number Publication date
GB1364518A (en) 1974-08-21
DE2142413A1 (en) 1972-03-02
SE375673B (en) 1975-04-21
DE2142413B2 (en) 1979-09-27
DE2142413C3 (en) 1980-07-17
FR2107065A5 (en) 1972-05-05

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