KR102095734B1 - 블록 암호 알고리즘에서 사용할 키 업데이트를 위한 장치 및 방법 - Google Patents

블록 암호 알고리즘에서 사용할 키 업데이트를 위한 장치 및 방법 Download PDF

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KR102095734B1
KR102095734B1 KR1020167002645A KR20167002645A KR102095734B1 KR 102095734 B1 KR102095734 B1 KR 102095734B1 KR 1020167002645 A KR1020167002645 A KR 1020167002645A KR 20167002645 A KR20167002645 A KR 20167002645A KR 102095734 B1 KR102095734 B1 KR 102095734B1
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South Korea
Prior art keywords
key
round
delete delete
round keys
data block
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KR1020167002645A
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Korean (ko)
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KR20160034931A (ko
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스티븐 엠. 밀렌도프
카메론 에이. 맥도날드
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퀄컴 인코포레이티드
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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
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • H04L9/002—Countermeasures against attacks on cryptographic mechanisms
    • H04L9/003—Countermeasures against attacks on cryptographic mechanisms for power analysis, e.g. differential power analysis [DPA] or simple power analysis [SPA]
    • 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
    • H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
    • 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
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
KR1020167002645A 2013-07-19 2014-07-07 블록 암호 알고리즘에서 사용할 키 업데이트를 위한 장치 및 방법 Expired - Fee Related KR102095734B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/946,797 2013-07-19
US13/946,797 US9160525B2 (en) 2013-07-19 2013-07-19 Apparatus and method for key update for use in a block cipher algorithm
PCT/US2014/045609 WO2015023368A2 (en) 2013-07-19 2014-07-07 Apparatus and method for key update for use in a block cipher algorithm

Publications (2)

Publication Number Publication Date
KR20160034931A KR20160034931A (ko) 2016-03-30
KR102095734B1 true KR102095734B1 (ko) 2020-04-01

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KR1020167002645A Expired - Fee Related KR102095734B1 (ko) 2013-07-19 2014-07-07 블록 암호 알고리즘에서 사용할 키 업데이트를 위한 장치 및 방법

Country Status (6)

Country Link
US (1) US9160525B2 (enExample)
EP (1) EP3022864B1 (enExample)
JP (1) JP6487433B2 (enExample)
KR (1) KR102095734B1 (enExample)
CN (1) CN105379172B (enExample)
WO (1) WO2015023368A2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015015953B3 (de) * 2015-12-08 2017-04-27 Giesecke & Devrient Gmbh Kryptoalgorithmus mit schlüsselabhängigem maskiertem Rechenschritt (SBOX-Aufruf)
CN107864035B (zh) * 2017-10-13 2020-06-19 华南理工大学 一种实现在aes电路中基于功耗均衡编码的抗dpa攻击方法
CN108847924A (zh) * 2018-04-22 2018-11-20 平安科技（深圳）有限公司 加密方法、装置、计算机设备和存储介质
KR20220146115A (ko) * 2021-04-23 2022-11-01 삼성에스디에스 주식회사 키 스트림 생성 방법 및 장치
US12506604B2 (en) 2021-10-19 2025-12-23 Cryptography Research, Inc. Low-latency multi-key encryption and decryption engine and techniques
US12401495B1 (en) * 2023-07-24 2025-08-26 The Government Of The United States As Represented By The Director, National Security Agency Universal circuit device for selective block cipher cryptographic processing with space efficient configurational agility

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259789B1 (en) 1997-12-12 2001-07-10 Safecourier Software, Inc. Computer implemented secret object key block cipher encryption and digital signature device and method
EP2197144A1 (en) 2008-12-15 2010-06-16 Thomson Licensing Methods and devices for a chained encryption mode
US8386800B2 (en) 2009-12-04 2013-02-26 Cryptography Research, Inc. Verifiable, leak-resistant encryption and decryption

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6937727B2 (en) * 2001-06-08 2005-08-30 Corrent Corporation Circuit and method for implementing the advanced encryption standard block cipher algorithm in a system having a plurality of channels
JP2005134478A (ja) * 2003-10-28 2005-05-26 Sony Corp 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
JP2005202048A (ja) * 2004-01-14 2005-07-28 Sharp Corp 暗号通信システム、そのシステムに使用される暗号装置および復号装置、暗号化方法および復号化方法、暗号化プログラムおよび復号化プログラム、ならびに記録媒体
US8041032B2 (en) * 2005-08-19 2011-10-18 Cardiac Pacemakers, Inc. Symmetric key encryption system with synchronously updating expanded key
KR20120115425A (ko) * 2005-12-14 2012-10-17 엔디에스 리미티드 블록 사이퍼 암호화의 사용을 위한 방법 및 시스템
JP5000365B2 (ja) * 2006-04-27 2012-08-15 株式会社日立製作所 ハッシュ値生成装置、プログラム及びハッシュ値生成方法
CA2688592C (en) * 2007-10-01 2014-04-15 Research In Motion Limited Substitution table masking for cryptographic processes
KR100949538B1 (ko) 2008-09-09 2010-03-25 한국전자통신연구원 Ａｅｓ 라인달 알고리즘을 이용하는 암호화 및 복호화 장치와 그 방법
KR100960113B1 (ko) 2008-09-19 2010-05-27 한국전자통신연구원 고속처리 가능한 아리아 암복호화 장치
US20120321079A1 (en) * 2011-06-14 2012-12-20 Freescale Semiconductor, Inc System and method for generating round keys

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259789B1 (en) 1997-12-12 2001-07-10 Safecourier Software, Inc. Computer implemented secret object key block cipher encryption and digital signature device and method
EP2197144A1 (en) 2008-12-15 2010-06-16 Thomson Licensing Methods and devices for a chained encryption mode
US8386800B2 (en) 2009-12-04 2013-02-26 Cryptography Research, Inc. Verifiable, leak-resistant encryption and decryption

Also Published As

Publication number Publication date
US20150023497A1 (en) 2015-01-22
JP6487433B2 (ja) 2019-03-20
EP3022864B1 (en) 2020-02-05
EP3022864A2 (en) 2016-05-25
KR20160034931A (ko) 2016-03-30
US9160525B2 (en) 2015-10-13
CN105379172B (zh) 2018-05-29
WO2015023368A2 (en) 2015-02-19
WO2015023368A3 (en) 2015-04-16
CN105379172A (zh) 2016-03-02
JP2016525836A (ja) 2016-08-25

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