GB1317094A - Circuit for enciphering device - Google Patents
Circuit for enciphering deviceInfo
- Publication number
- GB1317094A GB1317094A GB2388871*A GB2388871A GB1317094A GB 1317094 A GB1317094 A GB 1317094A GB 2388871 A GB2388871 A GB 2388871A GB 1317094 A GB1317094 A GB 1317094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- combination
- lllll
- key
- character
- 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
Links
- KUGRPPRAQNPSQD-UHFFFAOYSA-N OOOOO Chemical compound OOOOO KUGRPPRAQNPSQD-UHFFFAOYSA-N 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 2
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
- H04L9/36—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols with means for detecting characters not meant for transmission
-
- 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
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input From Keyboards Or The Like (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Lock And Its Accessories (AREA)
Abstract
1317094 Digital transmission; ciphering systems ANSTALT EUROPAISCHE HANDELSGESELLSCHAFT 19 April 1971 [16 March 1970] 23888/71 Heading H4P In a ciphering system wherein input characters are mixed with key characters, the output of the key generator is examined for combination LLLLL whereby the generator is shifted to another combination; the ciphered output is further examined for combination OOOOO whereby the key character is caused to generate combination LLLLL hence the input character is fed directly to the output. In a ternary system the combination sought is OOO in each case. The position of contacts a1-e1 represent an input character which is modified by key character represented by contacts s11-s51. Series contacts s12-s52 reflect the positions of contacts s11-s51 and if combination LLLLL is represented a circuit to relay O is completed causing closure of contacts o1 hence the key generator moves one step forward or backward. The ciphered character is represented by energization of relays F-J temporarily self held by the contacts f1-j1 and n4 closed. Serial contacts f2-j2 detect combination OOOOO energizing relay K which opens contacts k2 causing contacts s11-s51 to assume the lower position (LLLLL) corresponding to clear text transmission.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH392270A CH506217A (en) | 1970-03-16 | 1970-03-16 | Circuit for encryption devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1317094A true GB1317094A (en) | 1973-05-16 |
Family
ID=4266370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2388871*A Expired GB1317094A (en) | 1970-03-16 | 1971-04-19 | Circuit for enciphering device |
Country Status (11)
Country | Link |
---|---|
US (1) | US3725579A (en) |
AT (1) | AT316666B (en) |
BE (1) | BE764312A (en) |
CA (1) | CA926305A (en) |
CH (1) | CH506217A (en) |
DE (1) | DE2101177A1 (en) |
FR (1) | FR2084644A5 (en) |
GB (1) | GB1317094A (en) |
NL (1) | NL7103171A (en) |
NO (1) | NO128425B (en) |
SE (1) | SE365687B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH603014A5 (en) * | 1975-02-05 | 1978-08-15 | Europ Handelsges Anst | |
DE2507804C1 (en) * | 1975-02-24 | 1979-11-29 | Siemens Ag | Circuit arrangement for controlling half-duplex data transmission systems |
US4074066A (en) * | 1976-04-26 | 1978-02-14 | International Business Machines Corporation | Message verification and transmission error detection by block chaining |
CH604432A5 (en) * | 1977-03-16 | 1978-09-15 | Europ Handelsges Anst | |
US10735199B2 (en) | 2018-01-02 | 2020-08-04 | Bank Of America Corporation | File based transmission validation and failure location identification system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2406829A (en) * | 1942-06-27 | 1946-09-03 | Western Union Telegraph Co | Telegraph system |
US2406023A (en) * | 1944-03-25 | 1946-08-20 | Bell Telephone Labor Inc | Teletypewriter signal enciphering system |
US2897268A (en) * | 1954-05-05 | 1959-07-28 | Bell Telephone Labor Inc | Cipher telegraph system |
US2874215A (en) * | 1955-03-23 | 1959-02-17 | Teletype Corp | Two-tape cipher system |
CH382216A (en) * | 1960-11-07 | 1964-09-30 | Europ Handelsges Anst | Device for the encryption and decryption of a text stored in teletype symbols |
CH429253A (en) * | 1964-01-21 | 1967-01-31 | Europ Handelsges Anst | Mixing device for encrypting and decrypting information |
-
1970
- 1970-03-16 CH CH392270A patent/CH506217A/en not_active IP Right Cessation
-
1971
- 1971-01-12 AT AT20371A patent/AT316666B/en not_active IP Right Cessation
- 1971-01-12 DE DE2101177A patent/DE2101177A1/en active Pending
- 1971-02-10 NO NO00500/71A patent/NO128425B/no unknown
- 1971-03-04 SE SE02788/71A patent/SE365687B/xx unknown
- 1971-03-10 US US00122969A patent/US3725579A/en not_active Expired - Lifetime
- 1971-03-10 NL NL7103171A patent/NL7103171A/xx not_active Application Discontinuation
- 1971-03-15 FR FR7109007A patent/FR2084644A5/fr not_active Expired
- 1971-03-16 BE BE764312A patent/BE764312A/en unknown
- 1971-03-16 CA CA107915A patent/CA926305A/en not_active Expired
- 1971-04-19 GB GB2388871*A patent/GB1317094A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2084644A5 (en) | 1971-12-17 |
US3725579A (en) | 1973-04-03 |
NL7103171A (en) | 1971-09-20 |
AT316666B (en) | 1974-07-25 |
NO128425B (en) | 1973-11-12 |
CA926305A (en) | 1973-05-15 |
CH506217A (en) | 1971-04-15 |
SE365687B (en) | 1974-03-25 |
BE764312A (en) | 1971-09-16 |
DE2101177A1 (en) | 1971-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |