SG11201803741PA - Key sequence generation for cryptographic operations - Google Patents

Key sequence generation for cryptographic operations

Info

Publication number
SG11201803741PA
SG11201803741PA SG11201803741PA SG11201803741PA SG11201803741PA SG 11201803741P A SG11201803741P A SG 11201803741PA SG 11201803741P A SG11201803741P A SG 11201803741PA SG 11201803741P A SG11201803741P A SG 11201803741PA SG 11201803741P A SG11201803741P A SG 11201803741PA
Authority
SG
Singapore
Prior art keywords
sub
keys
key
main key
international
Prior art date
Application number
SG11201803741PA
Other languages
English (en)
Inventor
Karine Villegas
Brecht Wyseur
Original Assignee
Nagravision Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nagravision Sa filed Critical Nagravision Sa
Publication of SG11201803741PA publication Critical patent/SG11201803741PA/en

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)
SG11201803741PA 2015-11-06 2016-11-02 Key sequence generation for cryptographic operations SG11201803741PA (en)

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 (fr) 2015-11-06 2016-11-02 Génération de séquence de clé pour opérations cryptographiques

Publications (1)

Publication Number Publication Date
SG11201803741PA true SG11201803741PA (en) 2018-06-28

Family

ID=55132394

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201803741PA SG11201803741PA (en) 2015-11-06 2016-11-02 Key sequence generation for cryptographic operations

Country Status (10)

Country Link
US (2) US10742394B2 (fr)
EP (1) EP3371928B8 (fr)
KR (1) KR102620649B1 (fr)
CN (1) CN108476132B (fr)
BR (1) BR112018009137B1 (fr)
ES (1) ES2911889T3 (fr)
GB (1) GB201519612D0 (fr)
MX (1) MX2018005700A (fr)
SG (1) SG11201803741PA (fr)
WO (1) WO2017076911A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
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 (fr) * 2021-07-09 2023-01-11 STMicroelectronics S.r.l. Procédé permettant d'effectuer des opérations cryptographiques dans un dispositif de traitement, dispositif de traitement correspondant et produit de programme informatique
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5892829A (en) * 1997-01-08 1999-04-06 Bell Communications Research, Inc. 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
US8479016B2 (en) * 2006-03-10 2013-07-02 Irdeto B.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 (fr) * 2008-12-15 2010-06-16 Thomson Licensing Procédés et dispositifs pour un mode de cryptage en chaînes
JP5552541B2 (ja) * 2009-12-04 2014-07-16 クリプトグラフィ リサーチ， インコーポレイテッド 検証可能な耐漏洩性暗号化および復号化
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

Also Published As

Publication number Publication date
CN108476132B (zh) 2021-11-19
EP3371928B8 (fr) 2022-05-18
WO2017076911A1 (fr) 2017-05-11
BR112018009137B1 (pt) 2023-12-26
US11546135B2 (en) 2023-01-03
US10742394B2 (en) 2020-08-11
KR20180081559A (ko) 2018-07-16
EP3371928B1 (fr) 2022-04-06
CN108476132A (zh) 2018-08-31
BR112018009137A8 (pt) 2019-02-26
MX2018005700A (es) 2018-12-11
US20210021405A1 (en) 2021-01-21
BR112018009137A2 (pt) 2018-11-06
GB201519612D0 (en) 2015-12-23
ES2911889T3 (es) 2022-05-23
US20180316490A1 (en) 2018-11-01
KR102620649B1 (ko) 2024-01-03
EP3371928A1 (fr) 2018-09-12

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