KR20020041815A - 대칭-키 암호에 대한 선형 변환 - Google Patents
대칭-키 암호에 대한 선형 변환 Download PDFInfo
- Publication number
- KR20020041815A KR20020041815A KR1020027004264A KR20027004264A KR20020041815A KR 20020041815 A KR20020041815 A KR 20020041815A KR 1020027004264 A KR1020027004264 A KR 1020027004264A KR 20027004264 A KR20027004264 A KR 20027004264A KR 20020041815 A KR20020041815 A KR 20020041815A
- Authority
- KR
- South Korea
- Prior art keywords
- matrix
- code
- linear transformation
- bit
- columns
- 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.)
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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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
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- 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
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/08—Randomization, e.g. dummy operations or using noise
-
- 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
-
- 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
- H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Error Detection And Correction (AREA)
- Storage Device Security (AREA)
- Collating Specific Patterns (AREA)
- Mobile Radio Communication Systems (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Image Processing (AREA)
- Lock And Its Accessories (AREA)
- Holo Graphy (AREA)
- Detection And Correction Of Errors (AREA)
Abstract
Description
Claims (8)
- 대칭-키 암호(symmetric-key cipher)에 사용하기 위한 선형 변환 매트릭스(A)를 생성하는 방법에 있어서:- G=(Ik∥B)(B∈Z2 k×(n-k))의 표준형으로 생성기 매트릭스 G∈Z2 k×n에 의해 표시되는 이진 [n,k,d] 에러-정정 코드를 생성하는 단계로서, 여기서, k<n<2k이고, d는 상기 이진 에러 정정 코드의 최소 거리인, 상기 이진 에러-정정 코드 생성 단계;- 결과 매트릭스(C)가 정칙 행렬(non-singular)이 되도록 2k-n 컬럼들로 매트릭스(B)를 확장하는 단계; 및- 매트릭스(C)로부터 매트릭스(A)를 유도하는 단계를 포함하는, 선형 변환 매트릭스(A) 생성 방법.
- 제 1 항에 있어서,2k-n 컬럼들로 매트릭스(B)를 확장하는 상기 단계는:- 각각 k개의 이진 성분들을 갖는 2k-n 컬럼들을 (의사-)랜덤하게((pseudo-)randomly) 생성하는 단계;- B의 n-k 컬럼들과 상기 생성된 2k-n 컬럼들로 이루어지는 검사 매트릭스를 형성하는 단계; 및- 정칙 행렬인 검사 매트릭스가 발견될 때까지 상기 검사 매트릭스가 정칙 행렬인지의 여부를 검사하는 단계를 반복적으로 수행하고,상기 발견된 검사 매트릭스를 매트릭스(C)로서 사용하는 단계를 포함하는, 선형 변환 매트릭스(A) 생성 방법.
- 제 1 항에 있어서,매트릭스(C)로부터 매트릭스(A)를 유도하는 상기 단계는,- 상기 생성기 매트릭스(I∥P1C P2)에 의해 표시되는 [2k,k,d] 에러 정정 코드의 모든 코드워드들이 미리 결정된 멀티-비트 가중치를 갖도록 2개의 순열 매트릭스들(P1,P2 ∈ Z2 k×k)을 결정하는 단계, 및- 매트릭스(A)로서 P1C P2를 사용하는 단계를 포함하는, 선형 변환 매트릭스(A) 생성 방법.
- 제 3 항에 있어서,상기 암호는 m-비트 서브-블록들에서 동작하는 S-박스들을 갖는 S-박스 층에 대한 라운드 함수를 포함하고, 모든 0이 아닌 코드워드들에 대한 상기 최소의 미리 결정된 멀티-비트 가중치는 미리 결정된 m-비트 가중치와 같은, 선형 변환 매트릭스(A) 생성 방법.
- 제 3 항에 있어서,상기 2개의 순열 매트릭스들(P1, P2)을 결정하는 상기 단계는 (의사-)랜덤 방식으로 상기 매트릭스들을 반복적으로 생성하는 단계를 포함하는, 선형 변환 매트릭스(A) 생성 방법.
- 제 1 항에 있어서,상기 암호는 32-비트 블록들에서 동작하는 라운드 함수를 포함하고, [n,k,d] 에러-정정 코드를 생성하는 상기 단계는:이진 확장된 보스-카우드후리-호켄겜(XBCH, extended Bose-Chaudhuri-Hocquenghem)[64,36,12] 코드를 생성하는 단계; 및4개의 로우들을 삭제함으로써 상기 코드를 [60,32,12] 단축 XBCH 코드로 단축하는 단계를 포함하는, 선형 변환 매트릭스(A) 생성 방법.
- 컴퓨터 프로그램 제품으로서,처리기가 청구항 1항의 방법을 수행하도록 동작하는, 컴퓨터 프로그램 제품.
- 입력 데이터 블록을 출력 데이터 블록으로 암호화 변환하는 시스템으로서, 상기 데이터 블록들은 n개의 데이터 비트들을 포함하는, 상기 변환 시스템에 있어서:- 상기 입력 데이터 블록을 수신하는 입력;- 청구항 1항의 방법에 따라 생성된 선형 변환 매트릭스(A)를 저장하는 저장장치;- 상기 선형 변환 매트릭스(A)를 사용하여 상기 입력 데이터 블록 또는 상기 입력 데이터 블록의 유도물(derivative)에서 선형 변환을 수행하는 암호화 처리기; 및- 상기 처리된 입력 데이터 블록을 출력하는 출력을 포함하는, 변환 시스템.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00202753.0 | 2000-08-03 | ||
| EP00202753 | 2000-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020041815A true KR20020041815A (ko) | 2002-06-03 |
| KR100855890B1 KR100855890B1 (ko) | 2008-09-03 |
Family
ID=8171882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020027004264A Expired - Lifetime KR100855890B1 (ko) | 2000-08-03 | 2001-07-20 | 대칭-키 암호에 대한 선형 변환 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7450720B2 (ko) |
| EP (1) | EP1307993B1 (ko) |
| JP (1) | JP5079204B2 (ko) |
| KR (1) | KR100855890B1 (ko) |
| CN (1) | CN100431293C (ko) |
| AT (1) | ATE298952T1 (ko) |
| AU (1) | AU2001277548A1 (ko) |
| DE (1) | DE60111746T2 (ko) |
| ES (1) | ES2244639T3 (ko) |
| WO (1) | WO2002013452A2 (ko) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100889465B1 (ko) * | 2000-07-04 | 2009-03-20 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 대칭-키 암호들을 위한 치환-박스 |
| JP2003302899A (ja) * | 2002-04-11 | 2003-10-24 | Sony Corp | ブーリアン・マトリクスに基づく暗号化および復号処理方法、並びに装置 |
| US7840803B2 (en) | 2002-04-16 | 2010-11-23 | Massachusetts Institute Of Technology | Authentication of integrated circuits |
| EP1387519A3 (fr) * | 2002-07-09 | 2004-02-18 | Cp8 | Procédé de sécurisation d'un ensemble électronique contre des attaques par introduction d'erreurs |
| US20040078587A1 (en) * | 2002-10-22 | 2004-04-22 | Cameron Brackett | Method, system, computer product and encoding format for creating anonymity in collecting patient data |
| EP1480371A1 (en) * | 2003-05-23 | 2004-11-24 | Mediacrypt AG | Device and method for encrypting and decrypting a block of data |
| US7289629B2 (en) * | 2004-02-09 | 2007-10-30 | Microsoft Corporation | Primitives for fast secure hash functions and stream ciphers |
| KR20050087271A (ko) * | 2004-02-26 | 2005-08-31 | 삼성전자주식회사 | 가변 키 길이를 가지는 초기 라운드 키에 대응하는 암호라운드 키와 복호 라운드 키를 선택적으로 발생하는 키스케쥴 장치 |
| JP4561252B2 (ja) * | 2004-09-03 | 2010-10-13 | ソニー株式会社 | 暗号処理装置、および暗号処理方法、並びにコンピュータ・プログラム |
| WO2006053304A2 (en) * | 2004-11-12 | 2006-05-18 | Pufco, Inc. | Volatile device keys and applications thereof |
| US8583936B2 (en) | 2004-12-28 | 2013-11-12 | Koninklijke Philips N.V. | Key generation using biometric data and secret extraction codes |
| US7702099B2 (en) * | 2005-06-30 | 2010-04-20 | Chiou-Haun Lee | Multipoint synchronous diffused encryption/decryption method |
| ATE504884T1 (de) | 2006-01-24 | 2011-04-15 | Verayo Inc | Signalgeneratorbasierte vorrichtungssicherheit |
| JP4882598B2 (ja) * | 2006-07-28 | 2012-02-22 | ソニー株式会社 | 暗号処理装置、暗号処理アルゴリズム構築方法、および暗号処理方法、並びにコンピュータ・プログラム |
| DE102006039327B4 (de) * | 2006-08-22 | 2008-06-26 | Nokia Siemens Networks Gmbh & Co.Kg | Verfahren zur Authentifizierung |
| JP4967544B2 (ja) | 2006-09-01 | 2012-07-04 | ソニー株式会社 | 暗号処理装置、および暗号処理方法、並びにコンピュータ・プログラム |
| US8559625B2 (en) * | 2007-08-07 | 2013-10-15 | Inside Secure | Elliptic curve point transformations |
| US8782396B2 (en) | 2007-09-19 | 2014-07-15 | Verayo, Inc. | Authentication with physical unclonable functions |
| US9548758B2 (en) * | 2010-01-05 | 2017-01-17 | Alcatel-Lucent Usa Inc. | Secure compressive sampling using codebook of sampling matrices |
| US8712156B2 (en) * | 2010-01-10 | 2014-04-29 | Bronstein Bronstein Kimmel Technologies Ltd. | Comparison of visual information |
| US9503259B2 (en) * | 2012-02-09 | 2016-11-22 | Irdeto B.V. | System and method for generating and protecting cryptographic keys |
| US9886597B2 (en) * | 2013-02-27 | 2018-02-06 | Morpho | Method for encoding data on a chip card by means of constant-weight codes |
| WO2014154273A1 (en) * | 2013-03-27 | 2014-10-02 | Irdeto B.V. | Aes implementation with error correction |
| EP3475825B1 (en) * | 2016-06-23 | 2023-01-25 | Cryptography Research, Inc. | Cryptographic operations employing non-linear share encoding for protecting from external monitoring attacks |
| US10404667B2 (en) | 2016-11-17 | 2019-09-03 | Bank Of America Corporation | Secure, autonomous file encryption and decryption |
| CN111786680B (zh) * | 2019-04-03 | 2023-01-13 | 华为技术有限公司 | 一种生成矩阵的确定方法及装置 |
| CN111431697B (zh) * | 2020-03-31 | 2022-06-21 | 衡阳师范学院 | 一种新型轻量级分组密码corl的实现方法 |
| US11610004B2 (en) * | 2021-04-14 | 2023-03-21 | Bank Of America Corporation | System for implementing enhanced file encryption technique |
| CN115186253B (zh) * | 2022-06-29 | 2025-08-08 | 中国电子科技集团公司第十五研究所 | 一种用于测试对称密码组件安全性的系统及方法 |
| US12476786B2 (en) * | 2023-12-05 | 2025-11-18 | Nxp B.V. | Statistical ineffective fault analysis protection of Sbox |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2725610B2 (ja) * | 1994-09-27 | 1998-03-11 | 日本電気株式会社 | 秘密鍵暗号方法及び装置 |
| US5991414A (en) * | 1997-09-12 | 1999-11-23 | International Business Machines Corporation | Method and apparatus for the secure distributed storage and retrieval of information |
| JP3017726B2 (ja) * | 1998-01-27 | 2000-03-13 | 日本電信電話株式会社 | データ変換装置 |
| US6363485B1 (en) * | 1998-09-09 | 2002-03-26 | Entrust Technologies Limited | Multi-factor biometric authenticating device and method |
| EP1065593A1 (en) * | 1999-07-02 | 2001-01-03 | Institut Eurecom G.I.E. | Process for securing the execution of a mobile code in an untrusted environment |
| US6947558B1 (en) * | 1999-08-29 | 2005-09-20 | Intel Corporation | Stream cipher having a shuffle network combiner function |
-
2001
- 2001-07-20 AU AU2001277548A patent/AU2001277548A1/en not_active Abandoned
- 2001-07-20 AT AT01955365T patent/ATE298952T1/de not_active IP Right Cessation
- 2001-07-20 ES ES01955365T patent/ES2244639T3/es not_active Expired - Lifetime
- 2001-07-20 KR KR1020027004264A patent/KR100855890B1/ko not_active Expired - Lifetime
- 2001-07-20 DE DE60111746T patent/DE60111746T2/de not_active Expired - Lifetime
- 2001-07-20 EP EP01955365A patent/EP1307993B1/en not_active Expired - Lifetime
- 2001-07-20 WO PCT/EP2001/008470 patent/WO2002013452A2/en not_active Ceased
- 2001-07-20 JP JP2002518682A patent/JP5079204B2/ja not_active Expired - Lifetime
- 2001-07-20 CN CNB018030084A patent/CN100431293C/zh not_active Expired - Lifetime
- 2001-08-01 US US09/918,831 patent/US7450720B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR100855890B1 (ko) | 2008-09-03 |
| DE60111746T2 (de) | 2006-05-18 |
| WO2002013452A2 (en) | 2002-02-14 |
| AU2001277548A1 (en) | 2002-02-18 |
| ATE298952T1 (de) | 2005-07-15 |
| EP1307993B1 (en) | 2005-06-29 |
| DE60111746D1 (de) | 2005-08-04 |
| JP2004506246A (ja) | 2004-02-26 |
| WO2002013452A3 (en) | 2002-07-25 |
| CN1398467A (zh) | 2003-02-19 |
| ES2244639T3 (es) | 2005-12-16 |
| CN100431293C (zh) | 2008-11-05 |
| US7450720B2 (en) | 2008-11-11 |
| JP5079204B2 (ja) | 2012-11-21 |
| EP1307993A2 (en) | 2003-05-07 |
| US20020101986A1 (en) | 2002-08-01 |
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