MX2018005700A - Generación de secuencia de claves para operaciones criptográficas. - Google Patents
Generación de secuencia de claves para operaciones criptográficas.Info
- Publication number
- MX2018005700A MX2018005700A MX2018005700A MX2018005700A MX2018005700A MX 2018005700 A MX2018005700 A MX 2018005700A MX 2018005700 A MX2018005700 A MX 2018005700A MX 2018005700 A MX2018005700 A MX 2018005700A MX 2018005700 A MX2018005700 A MX 2018005700A
- Authority
- MX
- Mexico
- Prior art keywords
- sub
- keys
- main key
- key
- generate
- 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
- 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
- H04L2209/24—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)
Abstract
Se proporcionan métodos, sistemas y dispositivos que generan una secuencia de sub-claves para operaciones criptográficas a partir de una clave principal. La clave principal se opera solo una vez para generar las sub-claves de la secuencia, con una transformación que comprende una o más funciones unidireccionales. Los valores de bit respectivos de las sub-claves de la secuencia se establecen utilizando los valores de bit respectivos de la una o más funciones unidireccionales. Ventajosamente, derivar los bits de sub-clave de los respectivos bits de salida de una o más funciones unidireccionales elimina o al menos reduce las correlaciones entre la clave principal y las sub-claves, así como entre las sub-claves, lo que hace que sea más difícil o incluso imposible recuperar la clave principal u otras sub-claves a partir de una sub-clave única, por ejemplo, tal como se encuentra al utilizar un ataque de canal lateral. Al mismo tiempo, al utilizar la clave principal solo una vez (en lugar de utilizar la clave principal cada vez que se genera una sub-clave), se reduce la vulnerabilidad de la clave principal para un ataque de canal lateral, debido a que se reducen las oportunidades para recuperar la información física que conduciría al descubrimiento de la clave principal. Las modalidades específicas utilizan la ejecución en paralelo o en cadena de las sub-funciones para generar las sub-claves respectivas. Otras modalidades específicas generan todas las sub-claves a partir de una función unidireccional única de una sola vez.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1519612.4A GB201519612D0 (en) | 2015-11-06 | 2015-11-06 | Key sequence generation for cryptographic operations |
PCT/EP2016/076436 WO2017076911A1 (en) | 2015-11-06 | 2016-11-02 | Key sequence generation for cryptographic operations |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2018005700A true MX2018005700A (es) | 2018-12-11 |
Family
ID=55132394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2018005700A MX2018005700A (es) | 2015-11-06 | 2016-11-02 | Generación de secuencia de claves para operaciones criptográficas. |
Country Status (10)
Country | Link |
---|---|
US (2) | US10742394B2 (es) |
EP (1) | EP3371928B8 (es) |
KR (1) | KR102620649B1 (es) |
CN (1) | CN108476132B (es) |
BR (1) | BR112018009137B1 (es) |
ES (1) | ES2911889T3 (es) |
GB (1) | GB201519612D0 (es) |
MX (1) | MX2018005700A (es) |
SG (1) | SG11201803741PA (es) |
WO (1) | WO2017076911A1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109347625B (zh) * | 2018-08-31 | 2020-04-24 | 阿里巴巴集团控股有限公司 | 密码运算、创建工作密钥的方法、密码服务平台及设备 |
CN111654367B (zh) | 2018-08-31 | 2023-05-12 | 创新先进技术有限公司 | 密码运算、创建工作密钥的方法、密码服务平台及设备 |
CN110572251B (zh) * | 2019-08-13 | 2020-09-22 | 武汉大学 | 一种模板攻击方法以及设备抗模板攻击的评估方法 |
CN110704856B (zh) * | 2019-10-09 | 2021-08-20 | 成都安恒信息技术有限公司 | 一种基于运维审计系统的秘密共享方法 |
CN111162907B (zh) * | 2019-12-28 | 2023-05-23 | 飞天诚信科技股份有限公司 | 一种协商密钥的生成方法及智能卡设备 |
CN111342951B (zh) * | 2020-02-09 | 2023-03-14 | 深圳大学 | 流密码系统的生成方法、装置及终端设备 |
CN112311527A (zh) * | 2020-09-17 | 2021-02-02 | 裴文耀 | 一种主密钥变换为多项式表格子密钥查表的加密方法 |
EP4117221A1 (en) * | 2021-07-09 | 2023-01-11 | STMicroelectronics S.r.l. | Method for performing cryptographic operations in a processing device, corresponding processing device and computer program product |
CN115022000B (zh) * | 2022-05-27 | 2023-12-01 | 北京交大微联科技有限公司 | 铁路信号系统的通信方法、装置及电子设备 |
CN115017530B (zh) * | 2022-08-08 | 2022-12-16 | 创云融达信息技术(天津)股份有限公司 | 一种数据安全存储设备及方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998031122A1 (en) | 1997-01-08 | 1998-07-16 | Bell Communications Research, Inc. | A method and apparatus for generating secure hash functions |
US6185679B1 (en) * | 1998-02-23 | 2001-02-06 | International Business Machines Corporation | Method and apparatus for a symmetric block cipher using multiple stages with type-1 and type-3 feistel networks |
US6185673B1 (en) | 1998-06-30 | 2001-02-06 | Sun Microsystems, Inc. | Apparatus and method for array bounds checking with a shadow register file |
WO2007105126A2 (en) * | 2006-03-10 | 2007-09-20 | Koninklijke Philips Electronics N.V. | Method and system for obfuscating a cryptographic function |
CN1878059A (zh) * | 2006-07-07 | 2006-12-13 | 北京财富投资有限公司 | 一种分组加密及解密算法 |
US8130946B2 (en) * | 2007-03-20 | 2012-03-06 | Michael De Mare | Iterative symmetric key ciphers with keyed S-boxes using modular exponentiation |
US20080304664A1 (en) * | 2007-06-07 | 2008-12-11 | Shanmugathasan Suthaharan | System and a method for securing information |
US20090245510A1 (en) | 2008-03-25 | 2009-10-01 | Mathieu Ciet | Block cipher with security intrinsic aspects |
EP2197144A1 (en) | 2008-12-15 | 2010-06-16 | Thomson Licensing | Methods and devices for a chained encryption mode |
CN102725737B (zh) * | 2009-12-04 | 2016-04-20 | 密码研究公司 | 可验证防泄漏的加密和解密 |
CN101895389B (zh) * | 2010-07-16 | 2012-06-06 | 黑龙江大学 | 采用比例计算的基于组合编码的文件加密和解密的方法 |
-
2015
- 2015-11-06 GB GBGB1519612.4A patent/GB201519612D0/en not_active Ceased
-
2016
- 2016-11-02 MX MX2018005700A patent/MX2018005700A/es unknown
- 2016-11-02 CN CN201680077921.5A patent/CN108476132B/zh active Active
- 2016-11-02 ES ES16788725T patent/ES2911889T3/es active Active
- 2016-11-02 US US15/772,933 patent/US10742394B2/en active Active
- 2016-11-02 SG SG11201803741PA patent/SG11201803741PA/en unknown
- 2016-11-02 BR BR112018009137-5A patent/BR112018009137B1/pt active IP Right Grant
- 2016-11-02 EP EP16788725.6A patent/EP3371928B8/en active Active
- 2016-11-02 KR KR1020187016055A patent/KR102620649B1/ko active IP Right Grant
- 2016-11-02 WO PCT/EP2016/076436 patent/WO2017076911A1/en active Application Filing
-
2020
- 2020-07-01 US US16/918,426 patent/US11546135B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2017076911A1 (en) | 2017-05-11 |
CN108476132B (zh) | 2021-11-19 |
SG11201803741PA (en) | 2018-06-28 |
US20180316490A1 (en) | 2018-11-01 |
EP3371928A1 (en) | 2018-09-12 |
BR112018009137A2 (pt) | 2018-11-06 |
CN108476132A (zh) | 2018-08-31 |
ES2911889T3 (es) | 2022-05-23 |
EP3371928B1 (en) | 2022-04-06 |
US20210021405A1 (en) | 2021-01-21 |
BR112018009137A8 (pt) | 2019-02-26 |
KR20180081559A (ko) | 2018-07-16 |
EP3371928B8 (en) | 2022-05-18 |
BR112018009137B1 (pt) | 2023-12-26 |
US10742394B2 (en) | 2020-08-11 |
KR102620649B1 (ko) | 2024-01-03 |
US11546135B2 (en) | 2023-01-03 |
GB201519612D0 (en) | 2015-12-23 |
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