CA2421142C - Dispositif de transformation de donnees et support d'enregistrement sur lequel est enregistre un programme d'execution de transformation de donnees - Google Patents
Dispositif de transformation de donnees et support d'enregistrement sur lequel est enregistre un programme d'execution de transformation de donnees Download PDFInfo
- Publication number
- CA2421142C CA2421142C CA002421142A CA2421142A CA2421142C CA 2421142 C CA2421142 C CA 2421142C CA 002421142 A CA002421142 A CA 002421142A CA 2421142 A CA2421142 A CA 2421142A CA 2421142 C CA2421142 C CA 2421142C
- Authority
- CA
- Canada
- Prior art keywords
- data
- key
- subkeys
- function
- transformation
- 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 - Fee Related
Links
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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
- H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
-
- 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
- H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/13573 | 1998-01-27 | ||
JP1357298 | 1998-01-27 | ||
JP10/13572 | 1998-01-27 | ||
JP1357398 | 1998-01-27 | ||
JP10/147479 | 1998-05-28 | ||
JP10147479A JP2934431B1 (ja) | 1998-05-28 | 1998-05-28 | 暗号鍵スケジュール装置、およびそのプログラム記録媒体 |
CA002319135A CA2319135C (fr) | 1998-01-27 | 1999-01-27 | Dispositif de transformation de donnees et support d'enregistrement sur lequel est enregistre un programme d'execution de transformation de donnees |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002319135A Division CA2319135C (fr) | 1998-01-27 | 1999-01-27 | Dispositif de transformation de donnees et support d'enregistrement sur lequel est enregistre un programme d'execution de transformation de donnees |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2421142A1 CA2421142A1 (fr) | 1999-07-29 |
CA2421142C true CA2421142C (fr) | 2004-05-11 |
Family
ID=27427642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002421142A Expired - Fee Related CA2421142C (fr) | 1998-01-27 | 1999-01-27 | Dispositif de transformation de donnees et support d'enregistrement sur lequel est enregistre un programme d'execution de transformation de donnees |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2421142C (fr) |
-
1999
- 1999-01-27 CA CA002421142A patent/CA2421142C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2421142A1 (fr) | 1999-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |