JPS6411288A - Cipher processor - Google Patents
Cipher processorInfo
- Publication number
- JPS6411288A JPS6411288A JP62166893A JP16689387A JPS6411288A JP S6411288 A JPS6411288 A JP S6411288A JP 62166893 A JP62166893 A JP 62166893A JP 16689387 A JP16689387 A JP 16689387A JP S6411288 A JPS6411288 A JP S6411288A
- Authority
- JP
- Japan
- Prior art keywords
- serial data
- data port
- ciphering
- deciphering
- signal
- 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.)
- Pending
Links
Abstract
PURPOSE: To decrease additional circuits by providing a serial data port for ciphering and a serial data port for deciphering and placing the respective ports in independent operation with respective clock signals. CONSTITUTION: A control circuit 129 generates the process start signal of a ciphering/deciphering process part 128 from a timing signal between the serial data port 126 for ciphering and serial data port 127 for deciphering which operate asynchronously with each other. Both the serial data ports 126 and 127 can operate with completely independent timing signals. Namely, the ciphering serial data port 126 outputs ciphered text data by 1-bit exclusive OR operation with a ciphered signal each time plaintext data is supplied and the deciphering serial data port 127 outputs deciphered text data by 1-bit exclusive OR operation with a deciphered signal each time ciphered text data is supplied. Consequently, additional circuits can be decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166893A JPS6411288A (en) | 1987-07-06 | 1987-07-06 | Cipher processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62166893A JPS6411288A (en) | 1987-07-06 | 1987-07-06 | Cipher processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6411288A true JPS6411288A (en) | 1989-01-13 |
Family
ID=15839579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62166893A Pending JPS6411288A (en) | 1987-07-06 | 1987-07-06 | Cipher processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6411288A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4962079A (en) * | 1987-12-25 | 1990-10-09 | Mitsubishi Paper Mills Limited | Overcoated heat-sensitive record materials |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6037585A (en) * | 1983-08-10 | 1985-02-26 | 株式会社日立製作所 | Data feedback type cryptographer |
-
1987
- 1987-07-06 JP JP62166893A patent/JPS6411288A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6037585A (en) * | 1983-08-10 | 1985-02-26 | 株式会社日立製作所 | Data feedback type cryptographer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4962079A (en) * | 1987-12-25 | 1990-10-09 | Mitsubishi Paper Mills Limited | Overcoated heat-sensitive record materials |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1062130A (en) | Method and apparatus for ciphering and deciphering messages | |
GB1155456A (en) | Scrambling of Digital Data Signal Patterns | |
GB1167272A (en) | Improvement to Key Generators for Cryptographic Devices | |
GB1178027A (en) | Ciphering Unit for Cryptographic Telegraph Equipment | |
GB1528187A (en) | Integrated programmable logic circuits | |
TW353176B (en) | A semiconductor device capable of holding signals independent of the pulse width of an external clock and a computer system including the semiconductor | |
EP0428504A3 (en) | Programmable logic device with programming verification means and method therefor | |
JPS6411288A (en) | Cipher processor | |
KR20000026250A (en) | Method and apparatus for operating finite field | |
ATE28017T1 (en) | DEVICE FOR ENCRYPTION OF DIGITAL SIGNALS, WHICH CONTAINS ONE OR MORE DES CIRCUITS. | |
JPS5338373A (en) | Ic for watch | |
JPS6465945A (en) | Enciphering/deciphering device | |
JPS5443429A (en) | Multiple series input process system | |
JPS6474582A (en) | Cryptograph | |
JP2587423B2 (en) | Cryptographic processing unit | |
JPS5478634A (en) | Input/output interface | |
JPS5587201A (en) | Double system controller | |
JPS645242A (en) | Bit scramble circuit | |
GB962095A (en) | Improvements in or relating to electronic data-manipulating apparatus | |
JPS5443013A (en) | Sound source device of electronic musical instruments | |
JPS5344129A (en) | Key inputting system | |
JPS619051A (en) | Scramble system | |
JPS52140246A (en) | Information processing unit | |
JPS5760588A (en) | Memory controller | |
GB1118671A (en) | Reading device for cryptographic machine |