CH232786A - Device for secret messaging. - Google Patents
Device for secret messaging.Info
- Publication number
- CH232786A CH232786A CH232786DA CH232786A CH 232786 A CH232786 A CH 232786A CH 232786D A CH232786D A CH 232786DA CH 232786 A CH232786 A CH 232786A
- Authority
- CH
- Switzerland
- Prior art keywords
- secret messaging
- secret
- messaging
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
-
- 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
- H04L9/34—Bits, or blocks of bits, of the telegraphic message being interchanged in time
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Communication Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH552414X | 1939-07-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH232786A true CH232786A (en) | 1944-06-15 |
Family
ID=4519722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH232786D CH232786A (en) | 1939-07-14 | 1939-07-14 | Device for secret messaging. |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH232786A (en) |
FR (1) | FR885039A (en) |
GB (1) | GB552414A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321902A1 (en) * | 1973-03-19 | 1974-09-26 | Patelhold Patentverwertung | PROCEDURE AND DEVICE FOR ENCRYPTED MESSAGE TRANSMISSION |
DE2523828C2 (en) * | 1975-05-30 | 1982-08-12 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Method for obfuscating speech signals with the aid of orthogonal matrices |
-
1939
- 1939-07-14 CH CH232786D patent/CH232786A/en unknown
-
1940
- 1940-09-26 FR FR885039D patent/FR885039A/en not_active Expired
- 1940-11-14 GB GB16499/40A patent/GB552414A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321902A1 (en) * | 1973-03-19 | 1974-09-26 | Patelhold Patentverwertung | PROCEDURE AND DEVICE FOR ENCRYPTED MESSAGE TRANSMISSION |
DE2523828C2 (en) * | 1975-05-30 | 1982-08-12 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Method for obfuscating speech signals with the aid of orthogonal matrices |
Also Published As
Publication number | Publication date |
---|---|
GB552414A (en) | 1943-04-07 |
FR885039A (en) | 1943-09-02 |
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