NO20055404L - Anordning og fremgangsmate for kryptering og dekryptering av et blokk med data - Google Patents
Anordning og fremgangsmate for kryptering og dekryptering av et blokk med dataInfo
- Publication number
- NO20055404L NO20055404L NO20055404A NO20055404A NO20055404L NO 20055404 L NO20055404 L NO 20055404L NO 20055404 A NO20055404 A NO 20055404A NO 20055404 A NO20055404 A NO 20055404A NO 20055404 L NO20055404 L NO 20055404L
- Authority
- NO
- Norway
- Prior art keywords
- value
- values
- module
- subkey
- output
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 6
- 238000006467 substitution reaction Methods 0.000 abstract 5
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
-
- 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)
- Storage Device Security (AREA)
- Facsimile Transmission Control (AREA)
- Input From Keyboards Or The Like (AREA)
- Semiconductor Memories (AREA)
- Complex Calculations (AREA)
Abstract
Formålet med denne oppfinnelsen er å foreslå en ny krypteringsmetode som tilbyr et høyt nivå av sikkerhet kombinert med en høy eksekveringshastighet. Dette målet oppnås med en fremgangsmåte for å kryptere eller dekryptere blokker av data X til Y basert på en hovednøkkel R, der denne fremgangsmåten anvender flere seriekoblede moduler, der hver modul anvender en undernøkkel RA avledet fra hovednøkkelen R, og omfatter de trinn å: - mate inn minst to initialverdier, X0L og X0R, og blande disse verdiene for å danne en blandet verdi X l, - frembringe en verdi X2 ved å blande en første del RAH av undernøkkelen RA med verdien X l, - frembringe en verdi X3 ved å anvende verdien X2 på et substitusjonslag, der substitusjonslaget omfatter minst én substitusjonsboks (sbox) og hver substitusjonsboks inneholder minst én tabell med konstanter for hvilken innmatingen tjener som peker og konstanten det pekes til tjener som utmating, - frembringe en verdi X4 ved å anvende en spredningsboks av multipermutasjonstypen basert på verdien X3 - frembringe en verdi X5 ved å blande en andre del RAL av undernøkkelen RA med verdien X4, - frembringe en ver di X6 ved å anvende et substitusjonslag på verdien X5, - frembringe en verdi X7 ved å blande en første del RAH av undernøkkelen RA med verdien X6 , - blande verdien X7 med de minst to initialverdiene X0L og X0R for å oppnå de minst to verdiene X8L og X8R, X8L og X8R som representerer utverdien X8 fra modulen, der fremgangsmåten anvender minst to moduler, der for hver modul en ny undernøkkel RA genereres fra hovednøkkelen R, initialverdiene X0 for den første modulen er en delmengde av inndataene X og utverdiene X8L og X81-1 fra den siste modulen danner utdataene Y, og der fremgangsmåten videre omfatter det trinn å anvende en ortomorf funksjon på minst én av verdiene X8L eller X8R før disse verdiene anvendes på innmatingen X0R og X0L til den neste modulen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03011696A EP1480371A1 (en) | 2003-05-23 | 2003-05-23 | Device and method for encrypting and decrypting a block of data |
PCT/EP2004/050854 WO2004105305A1 (en) | 2003-05-23 | 2004-05-19 | Device and method for encrypting and decrypting a block of data |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20055404L true NO20055404L (no) | 2005-11-18 |
NO335894B1 NO335894B1 (no) | 2015-03-16 |
Family
ID=33041000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20055404A NO335894B1 (no) | 2003-05-23 | 2005-11-15 | Anordning og fremgangsmåte for kryptering og dekryptering av en blokk med data |
Country Status (27)
Country | Link |
---|---|
US (1) | US7499542B2 (no) |
EP (2) | EP1480371A1 (no) |
JP (1) | JP4663635B2 (no) |
KR (1) | KR101050670B1 (no) |
CN (2) | CN101944992B (no) |
AP (1) | AP1969A (no) |
AT (1) | ATE427598T1 (no) |
AU (1) | AU2004240359B2 (no) |
BR (1) | BRPI0411139A (no) |
CA (1) | CA2525591C (no) |
CY (1) | CY1109170T1 (no) |
DE (1) | DE602004020333D1 (no) |
DK (1) | DK1627489T3 (no) |
EA (1) | EA008183B1 (no) |
ES (1) | ES2323702T3 (no) |
HK (1) | HK1082335A1 (no) |
HR (1) | HRP20090287T1 (no) |
IL (1) | IL171933A (no) |
MA (1) | MA27811A1 (no) |
MX (1) | MXPA05012481A (no) |
NO (1) | NO335894B1 (no) |
NZ (1) | NZ543947A (no) |
PL (1) | PL1627489T3 (no) |
PT (1) | PT1627489E (no) |
SI (1) | SI1627489T1 (no) |
WO (1) | WO2004105305A1 (no) |
ZA (1) | ZA200509275B (no) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU6104800A (en) | 1999-07-16 | 2001-02-05 | Intertrust Technologies Corp. | Trusted storage systems and methods |
US7152165B1 (en) * | 1999-07-16 | 2006-12-19 | Intertrust Technologies Corp. | Trusted storage systems and methods |
KR100639764B1 (ko) | 2005-04-25 | 2006-10-30 | 이병관 | 블록암호화방법 |
US20090144561A1 (en) * | 2005-07-11 | 2009-06-04 | Davidson Jack W | Method and System for Software Protection Using Binary Encoding |
US7602906B2 (en) * | 2005-08-25 | 2009-10-13 | Microsoft Corporation | Cipher for disk encryption |
ATE440417T1 (de) * | 2006-06-29 | 2009-09-15 | Incard Sa | Verfahren zur diversifizierung eines schlüssels auf einer chipkarte |
JP2008058830A (ja) * | 2006-09-01 | 2008-03-13 | Sony Corp | データ変換装置、およびデータ変換方法、並びにコンピュータ・プログラム |
EP2092684A2 (en) * | 2006-11-17 | 2009-08-26 | Koninklijke Philips Electronics N.V. | Cryptographic method for a white-box implementation |
EP2163029A2 (en) * | 2007-05-22 | 2010-03-17 | Koninklijke Philips Electronics N.V. | Updating cryptographic key data |
CN101321058B (zh) * | 2007-06-07 | 2010-12-15 | 管海明 | 一种用于编码和译码数字消息的方法和系统 |
US20080304664A1 (en) * | 2007-06-07 | 2008-12-11 | Shanmugathasan Suthaharan | System and a method for securing information |
US8369515B2 (en) * | 2010-03-18 | 2013-02-05 | Chiou-Haun Lee | Cryptographic method of multilayer diffusion in multidimension |
CN103546282B (zh) * | 2012-07-12 | 2016-10-05 | 黄宜豊 | 具有三维运算、反馈控制与动态替换盒设计的加密方法 |
JP5772934B2 (ja) * | 2013-12-02 | 2015-09-02 | ソニー株式会社 | データ変換装置、およびデータ変換方法、並びにコンピュータ・プログラム |
CN104022872B (zh) * | 2014-04-09 | 2015-03-25 | 广州赛意信息科技有限公司 | 数据加密方法 |
ES2924347T3 (es) * | 2015-03-26 | 2022-10-06 | Nagravision Sa | Método y sistema para buscar al menos un dato específico en una unidad de usuario |
US10834065B1 (en) | 2015-03-31 | 2020-11-10 | F5 Networks, Inc. | Methods for SSL protected NTLM re-authentication and devices thereof |
US10404698B1 (en) | 2016-01-15 | 2019-09-03 | F5 Networks, Inc. | Methods for adaptive organization of web application access points in webtops and devices thereof |
RU2632119C9 (ru) * | 2016-06-02 | 2017-11-22 | Андрей Валерьевич Менячихин | Устройство для построения ортоморфизмов, использующее парные разности |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850019A (en) * | 1985-11-08 | 1989-07-18 | Nippon Telegraph And Telephone Corporation | Data randomization equipment |
US5214703A (en) | 1990-05-18 | 1993-05-25 | Ascom Tech Ag | Device for the conversion of a digital block and use of same |
US5623549A (en) * | 1995-01-30 | 1997-04-22 | Ritter; Terry F. | Cipher mechanisms with fencing and balanced block mixing |
US5727062A (en) * | 1995-07-06 | 1998-03-10 | Ritter; Terry F. | Variable size block ciphers |
US5675653A (en) * | 1995-11-06 | 1997-10-07 | Nelson, Jr.; Douglas Valmore | Method and apparatus for digital encryption |
CA2164768C (en) * | 1995-12-08 | 2001-01-23 | Carlisle Michael Adams | Constructing symmetric ciphers using the cast design procedure |
US6189095B1 (en) * | 1998-06-05 | 2001-02-13 | International Business Machines Corporation | Symmetric block cipher using multiple stages with modified type-1 and type-3 feistel networks |
US6269163B1 (en) * | 1998-06-15 | 2001-07-31 | Rsa Security Inc. | Enhanced block ciphers with data-dependent rotations |
JP3679936B2 (ja) * | 1998-11-27 | 2005-08-03 | 東芝ソリューション株式会社 | 暗復号装置及び記憶媒体 |
US6694025B1 (en) * | 1999-06-02 | 2004-02-17 | Koninklijke Philips Electronics N.V. | Method and apparatus for secure distribution of public/private key pairs |
KR100748867B1 (ko) * | 1999-09-03 | 2007-08-13 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 기록된 공개 자료로부터 마스터 키의 복구 |
JP3499810B2 (ja) * | 2000-03-06 | 2004-02-23 | 株式会社東芝 | 暗号化装置、暗号化方法及び暗号化装置としてコンピュータを機能させるためのプログラムを記録したコンピュータ読取り可能な記録媒体並びに復号装置、復号方法及び復号装置としてコンピュータを機能させるためのプログラムを記録したコンピュータ読取り可能な記録媒体 |
ATE298952T1 (de) * | 2000-08-03 | 2005-07-15 | Koninkl Philips Electronics Nv | Lineartransformation für symmetrische verschlüsselungssysteme |
-
2003
- 2003-05-23 EP EP03011696A patent/EP1480371A1/en not_active Withdrawn
-
2004
- 2004-05-14 US US10/845,063 patent/US7499542B2/en active Active
- 2004-05-19 PL PL04741601T patent/PL1627489T3/pl unknown
- 2004-05-19 KR KR1020057022268A patent/KR101050670B1/ko active IP Right Grant
- 2004-05-19 ZA ZA200509275A patent/ZA200509275B/en unknown
- 2004-05-19 EP EP04741601A patent/EP1627489B1/en not_active Expired - Lifetime
- 2004-05-19 DE DE602004020333T patent/DE602004020333D1/de not_active Expired - Lifetime
- 2004-05-19 DK DK04741601T patent/DK1627489T3/da active
- 2004-05-19 MX MXPA05012481A patent/MXPA05012481A/es active IP Right Grant
- 2004-05-19 AT AT04741601T patent/ATE427598T1/de active
- 2004-05-19 EA EA200501623A patent/EA008183B1/ru not_active IP Right Cessation
- 2004-05-19 BR BRPI0411139-7A patent/BRPI0411139A/pt not_active Application Discontinuation
- 2004-05-19 AP AP2005003445A patent/AP1969A/xx active
- 2004-05-19 NZ NZ543947A patent/NZ543947A/en not_active IP Right Cessation
- 2004-05-19 SI SI200431132T patent/SI1627489T1/sl unknown
- 2004-05-19 CA CA2525591A patent/CA2525591C/en not_active Expired - Lifetime
- 2004-05-19 CN CN2010102948886A patent/CN101944992B/zh not_active Expired - Lifetime
- 2004-05-19 AU AU2004240359A patent/AU2004240359B2/en not_active Ceased
- 2004-05-19 PT PT04741601T patent/PT1627489E/pt unknown
- 2004-05-19 CN CNA200480014205XA patent/CN1795638A/zh active Pending
- 2004-05-19 ES ES04741601T patent/ES2323702T3/es not_active Expired - Lifetime
- 2004-05-19 WO PCT/EP2004/050854 patent/WO2004105305A1/en not_active Application Discontinuation
- 2004-05-19 JP JP2006519708A patent/JP4663635B2/ja not_active Expired - Fee Related
-
2005
- 2005-11-14 IL IL171933A patent/IL171933A/en not_active IP Right Cessation
- 2005-11-15 NO NO20055404A patent/NO335894B1/no not_active IP Right Cessation
- 2005-11-22 MA MA28621A patent/MA27811A1/fr unknown
-
2006
- 2006-03-03 HK HK06102831.3A patent/HK1082335A1/xx not_active IP Right Cessation
-
2009
- 2009-05-19 HR HR20090287T patent/HRP20090287T1/xx unknown
- 2009-06-22 CY CY20091100649T patent/CY1109170T1/el unknown
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CHAD | Change of the owner's name or address (par. 44 patent law, par. patentforskriften) |
Owner name: NAGRAVISION SA, CH |
|
MM1K | Lapsed by not paying the annual fees |