CH341861A - Schlüsselfernschreibmaschine - Google Patents
SchlüsselfernschreibmaschineInfo
- Publication number
- CH341861A CH341861A CH341861DA CH341861A CH 341861 A CH341861 A CH 341861A CH 341861D A CH341861D A CH 341861DA CH 341861 A CH341861 A CH 341861A
- Authority
- CH
- Switzerland
- Prior art keywords
- teletypewriter
- key
- key teletypewriter
- Prior art date
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
- G09C3/00—Typewriters for ciphering or deciphering cryptographic text
- G09C3/04—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member
- G09C3/10—Typewriters for ciphering or deciphering cryptographic text wherein the operative connections between the keys and the type-bars are automatically and continuously permuted, during operation, by a coding or key member involving removable or interchangeable coding members, e.g. master tapes, punched cards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/12—Details relating to cryptographic hardware or logic circuitry
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/26—Testing cryptographic entity, e.g. testing integrity of encryption key or encryption algorithm
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE341861X | 1954-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH341861A true CH341861A (de) | 1959-10-31 |
Family
ID=6236280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH341861D CH341861A (de) | 1954-12-01 | 1955-11-19 | Schlüsselfernschreibmaschine |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH341861A (de) |
FR (1) | FR1155857A (de) |
-
1955
- 1955-11-19 CH CH341861D patent/CH341861A/de unknown
- 1955-11-29 FR FR1155857D patent/FR1155857A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1155857A (fr) | 1958-05-09 |
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