NO20055403L - Fremgangsmate for a generere en tilsynelatend tilfeldig rekkefolge - Google Patents
Fremgangsmate for a generere en tilsynelatend tilfeldig rekkefolgeInfo
- Publication number
- NO20055403L NO20055403L NO20055403A NO20055403A NO20055403L NO 20055403 L NO20055403 L NO 20055403L NO 20055403 A NO20055403 A NO 20055403A NO 20055403 A NO20055403 A NO 20055403A NO 20055403 L NO20055403 L NO 20055403L
- Authority
- NO
- Norway
- Prior art keywords
- value
- generating
- applying
- master key
- substitution
- Prior art date
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
-
- 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
- H04L9/0668—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 producing a non-linear pseudorandom sequence
-
- 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
- H04L2209/20—Manipulating the length of blocks of bits, e.g. padding or block truncation
-
- 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)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Storage Device Security (AREA)
- Image Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Lock And Its Accessories (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
Målet med denne oppfinnelsen er å foreslå en fremgangsmåte for å generere rekkefølger eller undernøkler basert på en hovednøkkel, der hver undernøkkel · ikke gir informasjon som bidrar til rekonstruering av hovednøkkelen eller noen som helst andre undernøkler. Målet oppnås med en fremgangsmåte for å generere undernøkler basert på en hovednøkkel (MKEY), omfattende de trinn å: frembringe en første verdi (Al) ved å anvende et lineært spredningslag på hovednøkkelen (MKEY) ved å blande hovednøkkelen (MKEY) med en konstant, anvende en ikke-lineær transformasjon på den første verdien (Al), der transformasjonen omfatter de trinn å: frembringe en andre verdi (A2) ved å anvende den første verdien (Al) på et substitusjonslag, der substitusjonslaget innbefatter minst én substitusjonsboks (sbox) og hver substitusjonsboks inneholder minst én tabell med konstanter for hvilken innmatingen tjener som peker og den konstanten det pekes til tjener som utmating, frembringe en tredje verdi (A3) ved å anvende en spredningsboks av multipermutasjonstypen basert på den andre verdien (A2), dele opp den tredje verdien (A3) i N blokker av samme størrelse og med det oppnå den fjerde utverdien (A4) dannet av N blokker, der hver blokk av den fjerde verdien (A4) er resultatet av kombinasjon av N-1 blokker av den tredje verdien (A3) og den manglende blokken er blokken med samme indeks, frembringe den femte verdien (A5) ved å anvende et substitusjonslag (sigma) på den fjerde verdien (A4), frembringe undernøkkelen (RKEY) ved å anvende en symmetrisk krypteringsmodul på den femte verdien (A5), idet den første verdien (Al) tjener som nøkkelen innmatet til denne modulen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103307A EP1513285A1 (en) | 2003-09-05 | 2003-09-05 | Method for generating pseudo-random sequence |
PCT/EP2004/052020 WO2005025123A1 (en) | 2003-09-05 | 2004-09-02 | Method for generating pseudo-random sequence |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20055403L true NO20055403L (no) | 2005-11-18 |
Family
ID=34130323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20055403A NO20055403L (no) | 2003-09-05 | 2005-11-15 | Fremgangsmate for a generere en tilsynelatend tilfeldig rekkefolge |
Country Status (23)
Country | Link |
---|---|
US (1) | US7512241B2 (no) |
EP (2) | EP1513285A1 (no) |
JP (1) | JP4673857B2 (no) |
KR (1) | KR101086940B1 (no) |
CN (1) | CN100574183C (no) |
AP (1) | AP1949A (no) |
AT (1) | ATE407493T1 (no) |
AU (1) | AU2004302919B2 (no) |
BR (1) | BRPI0411184A (no) |
CA (1) | CA2525541C (no) |
DE (1) | DE602004016350D1 (no) |
DK (1) | DK1661296T3 (no) |
EA (1) | EA008677B1 (no) |
ES (1) | ES2314453T3 (no) |
HK (1) | HK1085592A1 (no) |
HR (1) | HRP20080526T3 (no) |
IL (1) | IL171934A (no) |
NO (1) | NO20055403L (no) |
NZ (1) | NZ543948A (no) |
PL (1) | PL1661296T3 (no) |
PT (1) | PT1661296E (no) |
SI (1) | SI1661296T1 (no) |
WO (1) | WO2005025123A1 (no) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100622128B1 (ko) * | 2004-12-17 | 2006-09-19 | 한국전자통신연구원 | 병렬 처리 축소 키 생성기 |
US7602906B2 (en) * | 2005-08-25 | 2009-10-13 | Microsoft Corporation | Cipher for disk encryption |
US8145691B2 (en) | 2006-02-24 | 2012-03-27 | Novell, Inc. | Techniques for random bit generation |
WO2011136614A2 (ko) * | 2010-04-29 | 2011-11-03 | 동국대학교 산학협력단 | 이산화된 카오스 함수를 이용한 암호 시스템 |
US9135834B2 (en) * | 2013-04-30 | 2015-09-15 | The United Sates of America as represented by the Secretary of the Air Force | Apparatus and method to prevent side channel power attacks in advanced encryption standard using floating point operation |
US9160523B2 (en) * | 2013-04-30 | 2015-10-13 | The United States Of America As Represented By The Secretary Of The Air Force | Apparatus and method to prevent side channel power attacks in advanced encryption standard |
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 |
RU2632119C9 (ru) * | 2016-06-02 | 2017-11-22 | Андрей Валерьевич Менячихин | Устройство для построения ортоморфизмов, использующее парные разности |
US10402169B2 (en) * | 2017-07-12 | 2019-09-03 | Dell Products L.P. | Method and system of secure random seed generation for a cryptographically secure pseudo-random number generator |
US10361627B1 (en) * | 2018-09-12 | 2019-07-23 | Texas Instruments Incorporated | Reduction of low frequency noise in a discrete spread spectrum timebase |
CN110909375B (zh) * | 2019-10-12 | 2022-04-08 | 浙江工业大学 | 一种保留分布特征的地址脱敏方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US44651A (en) * | 1864-10-11 | Improvement in cider-mills | ||
JPH06342257A (ja) * | 1993-06-02 | 1994-12-13 | Matsushita Electric Ind Co Ltd | 逐次暗号方式 |
US5404402A (en) * | 1993-12-21 | 1995-04-04 | Gi Corporation | Clock frequency modulation for secure microprocessors |
US5745577A (en) * | 1996-07-25 | 1998-04-28 | Northern Telecom Limited | Symmetric cryptographic system for data encryption |
US6182216B1 (en) * | 1997-09-17 | 2001-01-30 | Frank C. Luyster | Block cipher method |
JPH11224183A (ja) * | 1998-02-05 | 1999-08-17 | Toyo Commun Equip Co Ltd | 擬似乱数発生装置 |
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 |
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 |
EP1142191B1 (en) * | 1998-12-30 | 2006-08-09 | Nokia Corporation | Method and device for cryptographically processing data |
US6578061B1 (en) * | 1999-01-19 | 2003-06-10 | Nippon Telegraph And Telephone Corporation | Method and apparatus for data permutation/division and recording medium with data permutation/division program recorded thereon |
US6763363B1 (en) * | 1999-12-02 | 2004-07-13 | Honeywell International Inc. | Computer efficient linear feedback shift register |
US6804355B1 (en) * | 2000-01-06 | 2004-10-12 | Intel Corporation | Block cipher for small selectable block sizes |
US6891951B2 (en) * | 2000-01-21 | 2005-05-10 | Victor Company Of Japan, Ltd. | Cryptosystem-related method and apparatus |
US20020044651A1 (en) * | 2000-05-16 | 2002-04-18 | Tuvell Walter E. | Method and apparatus for improving the security of cryptographic ciphers |
JP2005527853A (ja) * | 2002-05-23 | 2005-09-15 | アトメル・コーポレイション | 高度暗号化規格(aes)のハードウェア暗号法エンジン |
CN1384621A (zh) * | 2002-06-21 | 2002-12-11 | 清华大学 | 量子密钥分配中的加速全效及扩容方法 |
US7028059B2 (en) * | 2002-06-24 | 2006-04-11 | Sun Microsystems, Inc. | Apparatus and method for random number generation |
-
2003
- 2003-09-05 EP EP03103307A patent/EP1513285A1/en not_active Withdrawn
-
2004
- 2004-08-11 US US10/915,421 patent/US7512241B2/en active Active
- 2004-09-02 AP AP2005003444A patent/AP1949A/xx active
- 2004-09-02 PT PT04787093T patent/PT1661296E/pt unknown
- 2004-09-02 DE DE602004016350T patent/DE602004016350D1/de active Active
- 2004-09-02 JP JP2006552404A patent/JP4673857B2/ja active Active
- 2004-09-02 BR BRPI0411184-2A patent/BRPI0411184A/pt not_active Application Discontinuation
- 2004-09-02 NZ NZ543948A patent/NZ543948A/en not_active IP Right Cessation
- 2004-09-02 CA CA2525541A patent/CA2525541C/en not_active Expired - Fee Related
- 2004-09-02 EA EA200501622A patent/EA008677B1/ru unknown
- 2004-09-02 CN CNB2004800181410A patent/CN100574183C/zh active Active
- 2004-09-02 DK DK04787093T patent/DK1661296T3/da active
- 2004-09-02 WO PCT/EP2004/052020 patent/WO2005025123A1/en active IP Right Grant
- 2004-09-02 EP EP04787093A patent/EP1661296B1/en active Active
- 2004-09-02 ES ES04787093T patent/ES2314453T3/es active Active
- 2004-09-02 AU AU2004302919A patent/AU2004302919B2/en active Active
- 2004-09-02 AT AT04787093T patent/ATE407493T1/de active
- 2004-09-02 PL PL04787093T patent/PL1661296T3/pl unknown
- 2004-09-02 KR KR1020057022647A patent/KR101086940B1/ko active IP Right Grant
- 2004-09-02 SI SI200430918T patent/SI1661296T1/sl unknown
-
2005
- 2005-11-14 IL IL171934A patent/IL171934A/en not_active IP Right Cessation
- 2005-11-15 NO NO20055403A patent/NO20055403L/no not_active Application Discontinuation
-
2006
- 2006-06-07 HK HK06106469A patent/HK1085592A1/xx not_active IP Right Cessation
-
2008
- 2008-10-20 HR HR20080526T patent/HRP20080526T3/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE602004016350D1 (de) | 2008-10-16 |
IL171934A (en) | 2010-11-30 |
SI1661296T1 (sl) | 2009-02-28 |
KR101086940B1 (ko) | 2011-11-29 |
CN1813439A (zh) | 2006-08-02 |
EA200501622A1 (ru) | 2006-08-25 |
EA008677B1 (ru) | 2007-06-29 |
HK1085592A1 (en) | 2006-08-25 |
EP1661296A1 (en) | 2006-05-31 |
DK1661296T3 (da) | 2008-12-08 |
US7512241B2 (en) | 2009-03-31 |
NZ543948A (en) | 2007-08-31 |
KR20060119716A (ko) | 2006-11-24 |
CA2525541C (en) | 2013-03-26 |
IL171934A0 (en) | 2006-04-10 |
JP4673857B2 (ja) | 2011-04-20 |
AP2005003444A0 (en) | 2005-12-31 |
ES2314453T3 (es) | 2009-03-16 |
AU2004302919A1 (en) | 2005-03-17 |
JP2007532935A (ja) | 2007-11-15 |
HRP20080526T3 (en) | 2008-11-30 |
PL1661296T3 (pl) | 2009-02-27 |
US20050053233A1 (en) | 2005-03-10 |
AU2004302919B2 (en) | 2009-03-05 |
CA2525541A1 (en) | 2005-03-17 |
ATE407493T1 (de) | 2008-09-15 |
AP1949A (en) | 2009-02-05 |
PT1661296E (pt) | 2008-10-08 |
CN100574183C (zh) | 2009-12-23 |
WO2005025123A1 (en) | 2005-03-17 |
EP1513285A1 (en) | 2005-03-09 |
EP1661296B1 (en) | 2008-09-03 |
BRPI0411184A (pt) | 2006-07-25 |
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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 |
|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |