GB2084381B - A method of programming equipment for the secure transmission of messages - Google Patents
A method of programming equipment for the secure transmission of messagesInfo
- Publication number
- GB2084381B GB2084381B GB8125782A GB8125782A GB2084381B GB 2084381 B GB2084381 B GB 2084381B GB 8125782 A GB8125782 A GB 8125782A GB 8125782 A GB8125782 A GB 8125782A GB 2084381 B GB2084381 B GB 2084381B
- Authority
- GB
- United Kingdom
- Prior art keywords
- messages
- secure transmission
- programming equipment
- programming
- equipment
- 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
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
- G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
- G09C1/06—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
- G09C1/10—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member the connections being electrical
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8125782A GB2084381B (en) | 1980-08-22 | 1981-08-24 | A method of programming equipment for the secure transmission of messages |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8027453 | 1980-08-22 | ||
GB8125782A GB2084381B (en) | 1980-08-22 | 1981-08-24 | A method of programming equipment for the secure transmission of messages |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2084381A GB2084381A (en) | 1982-04-07 |
GB2084381B true GB2084381B (en) | 1984-03-14 |
Family
ID=26276669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8125782A Expired GB2084381B (en) | 1980-08-22 | 1981-08-24 | A method of programming equipment for the secure transmission of messages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2084381B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3244538A1 (en) * | 1982-12-02 | 1984-06-07 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Code input unit for encryption and decryption devices in secret data transmission |
USRE33229F1 (en) * | 1986-03-06 | 1999-11-16 | C L I C Electronics Internatio | Remote display device for a microcomputer with optical communication |
US4763291A (en) * | 1986-03-06 | 1988-08-09 | Project Benjamin, Ltd. | Remote display device for a microcomputer |
-
1981
- 1981-08-24 GB GB8125782A patent/GB2084381B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2084381A (en) | 1982-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950824 |