EP1179243A4 - Moteur cryptographique utilisant la conversion de base de numeration, des operations logiques et un generateur de nombres pseudo-aleatoires pour des matrices de donnees de fa on a augmenter la dispersion dans le texte chiffre - Google Patents
Moteur cryptographique utilisant la conversion de base de numeration, des operations logiques et un generateur de nombres pseudo-aleatoires pour des matrices de donnees de fa on a augmenter la dispersion dans le texte chiffreInfo
- Publication number
- EP1179243A4 EP1179243A4 EP99927081A EP99927081A EP1179243A4 EP 1179243 A4 EP1179243 A4 EP 1179243A4 EP 99927081 A EP99927081 A EP 99927081A EP 99927081 A EP99927081 A EP 99927081A EP 1179243 A4 EP1179243 A4 EP 1179243A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- prng
- ciphertext
- logic operations
- cryptographic engine
- data arrays
- 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.)
- Withdrawn
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
-
- 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
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
- H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
-
- 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
- H04L2209/04—Masking or blinding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1999/010967 WO2000070819A1 (fr) | 1998-02-07 | 1999-05-18 | Moteur cryptographique utilisant la conversion de base de numeration, des operations logiques et un generateur de nombres pseudo-aleatoires pour des matrices de donnees de façon a augmenter la dispersion dans le texte chiffre |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1179243A1 EP1179243A1 (fr) | 2002-02-13 |
EP1179243A4 true EP1179243A4 (fr) | 2005-07-20 |
Family
ID=22272781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99927081A Withdrawn EP1179243A4 (fr) | 1999-05-18 | 1999-05-18 | Moteur cryptographique utilisant la conversion de base de numeration, des operations logiques et un generateur de nombres pseudo-aleatoires pour des matrices de donnees de fa on a augmenter la dispersion dans le texte chiffre |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1179243A4 (fr) |
JP (1) | JP2003500681A (fr) |
CA (1) | CA2371452A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005309148A (ja) * | 2004-04-22 | 2005-11-04 | Hitachi Ltd | データ変換装置およびデータ変換方法 |
KR20070042511A (ko) * | 2004-06-14 | 2007-04-23 | 디 유니버시티 오브 노스 캐롤라이나 앳 그린스보로 | 디지털 콘텐트 보안 시스템 및 방법 |
CN113542196B (zh) * | 2020-04-16 | 2023-03-24 | 北京威努特技术有限公司 | 一种数据报文加密判定方法、装置、系统及存储介质 |
-
1999
- 1999-05-18 EP EP99927081A patent/EP1179243A4/fr not_active Withdrawn
- 1999-05-18 JP JP2000619156A patent/JP2003500681A/ja active Pending
- 1999-05-18 CA CA002371452A patent/CA2371452A1/fr not_active Abandoned
Non-Patent Citations (3)
Title |
---|
RIVEST R L: "THE RC5 ENCRYPTION ALGORITHM", FAST SOFTWARE ENCRYPTION. INTERNATIONAL WORKSHOP, 1995, pages 86 - 95, XP000890159 * |
SCHNEIER, B.: "Applied Cryptography, Protocols, Algorithms and Source Code in C, Second Edition", 1996, JOHN WILEY & SONS, INC., NEW YORK, XP002329180, 218930 * |
See also references of WO0070819A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2003500681A (ja) | 2003-01-07 |
CA2371452A1 (fr) | 2000-11-23 |
EP1179243A1 (fr) | 2002-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20011120 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20050606 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20050831 |