BR112019003039A2 - dispositivo criptográfico, método criptográfico e mídia legível por computador - Google Patents
dispositivo criptográfico, método criptográfico e mídia legível por computadorInfo
- Publication number
- BR112019003039A2 BR112019003039A2 BR112019003039-5A BR112019003039A BR112019003039A2 BR 112019003039 A2 BR112019003039 A2 BR 112019003039A2 BR 112019003039 A BR112019003039 A BR 112019003039A BR 112019003039 A2 BR112019003039 A2 BR 112019003039A2
- Authority
- BR
- Brazil
- Prior art keywords
- block cipher
- cryptographic
- results
- computer readable
- readable media
- 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
- H04L9/002—Countermeasures against attacks on cryptographic mechanisms
-
- 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
- H04L9/002—Countermeasures against attacks on cryptographic mechanisms
- H04L9/004—Countermeasures against attacks on cryptographic mechanisms for fault attacks
-
- 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
- H04L2209/12—Details relating to cryptographic hardware or logic circuitry
-
- 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
- H04L2209/16—Obfuscation or hiding, e.g. involving white box
-
- 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)
- Mobile Radio Communication Systems (AREA)
Abstract
a presente invenção se refere a algumas modalidades que são direcionadas a um dispositivo criptográfico (100) disposto para computar uma cifra de bloco em uma mensagem de entrada (110). o dispositivo computa uma pluralidade de resultados de cifra de bloco intermediários mediante a computação e recomputação de um primeiro resultado de cifra de bloco intermediário (151) dentre a pluralidade de resultados de cifra de bloco intermediários sequencialmente à mensagem de entrada seguido de uma ou mais rodadas de cifra de bloco adicionais. uma pluralidade de funções de cálculo de média é aplicada à pluralidade de resultados de cifra de bloco intermediários, cujos resultados são adicionados, após o que o inverso da uma ou mais rodadas de cifra de bloco adicionais é aplicado.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17175161.3 | 2017-06-09 | ||
EP17175161.3A EP3413500A1 (en) | 2017-06-09 | 2017-06-09 | Device and method to compute a block cipher |
PCT/EP2018/064321 WO2018224382A1 (en) | 2017-06-09 | 2018-05-31 | Device and method to compute a block cipher |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112019003039A2 true BR112019003039A2 (pt) | 2019-05-14 |
Family
ID=59034565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112019003039-5A BR112019003039A2 (pt) | 2017-06-09 | 2018-05-31 | dispositivo criptográfico, método criptográfico e mídia legível por computador |
Country Status (7)
Country | Link |
---|---|
US (1) | US10790962B2 (pt) |
EP (2) | EP3413500A1 (pt) |
JP (1) | JP6782864B2 (pt) |
CN (1) | CN109661792B (pt) |
BR (1) | BR112019003039A2 (pt) |
RU (1) | RU2696334C1 (pt) |
WO (1) | WO2018224382A1 (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2015745B1 (en) * | 2015-11-09 | 2017-05-26 | Koninklijke Philips Nv | A cryptographic device arranged to compute a target block cipher. |
EP3407528A1 (en) | 2017-05-24 | 2018-11-28 | Koninklijke Philips N.V. | Cryptographic device and method |
FR3078464A1 (fr) * | 2018-02-26 | 2019-08-30 | Stmicroelectronics (Rousset) Sas | Procede et circuit de mise en oeuvre d'une table de substitution |
US11218291B2 (en) * | 2018-02-26 | 2022-01-04 | Stmicroelectronics (Rousset) Sas | Method and circuit for performing a substitution operation |
FR3078463A1 (fr) * | 2018-02-26 | 2019-08-30 | Stmicroelectronics (Rousset) Sas | Procede et dispositif de realisation d'operations en table de substitution |
EP3664359A1 (en) * | 2018-12-07 | 2020-06-10 | Koninklijke Philips N.V. | A computation device using shared shares |
JP7383985B2 (ja) * | 2019-10-30 | 2023-11-21 | 富士電機株式会社 | 情報処理装置、情報処理方法及びプログラム |
WO2022102555A1 (ja) | 2020-11-12 | 2022-05-19 | ソニーグループ株式会社 | センサ装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7280658B2 (en) * | 2001-06-01 | 2007-10-09 | International Business Machines Corporation | Systems, methods, and computer program products for accelerated dynamic protection of data |
FR2867635B1 (fr) | 2004-03-11 | 2006-09-22 | Oberthur Card Syst Sa | Procede de traitement de donnees securise, base notamment sur un algorithme cryptographique |
EP2293487A1 (en) * | 2009-09-08 | 2011-03-09 | Thomson Licensing | A method of diversification of a round function of an encryption algorithm |
EP2506174B1 (en) * | 2011-03-30 | 2019-01-09 | Irdeto B.V. | Enabling a software application to be executed on a hardware device |
WO2014131677A1 (en) * | 2013-02-28 | 2014-09-04 | Koninklijke Philips N.V. | Random number generator and stream cipher |
WO2014154270A1 (en) * | 2013-03-27 | 2014-10-02 | Irdeto B.V. | Tamper resistant cryptographic algorithm implementation |
RU2666281C2 (ru) * | 2013-05-01 | 2018-09-06 | Конинклейке Филипс Н.В. | Электронное устройство блочного шифрования, подходящее для обфускации |
CN105099666A (zh) * | 2015-06-26 | 2015-11-25 | 中国科学院信息工程研究所 | 混淆轮边界的白盒密码系统和方法 |
NL2015599B1 (en) * | 2015-10-12 | 2017-05-02 | Koninklijke Philips Nv | A cryptographic device and an encoding device. |
NL2015745B1 (en) * | 2015-11-09 | 2017-05-26 | Koninklijke Philips Nv | A cryptographic device arranged to compute a target block cipher. |
-
2017
- 2017-06-09 EP EP17175161.3A patent/EP3413500A1/en not_active Withdrawn
-
2018
- 2018-05-31 RU RU2019104101A patent/RU2696334C1/ru active
- 2018-05-31 JP JP2019567296A patent/JP6782864B2/ja active Active
- 2018-05-31 BR BR112019003039-5A patent/BR112019003039A2/pt not_active IP Right Cessation
- 2018-05-31 US US16/319,018 patent/US10790962B2/en active Active
- 2018-05-31 CN CN201880003226.3A patent/CN109661792B/zh active Active
- 2018-05-31 EP EP18729909.4A patent/EP3469762B1/en active Active
- 2018-05-31 WO PCT/EP2018/064321 patent/WO2018224382A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
RU2696334C1 (ru) | 2019-08-01 |
EP3413500A1 (en) | 2018-12-12 |
US10790962B2 (en) | 2020-09-29 |
EP3469762B1 (en) | 2019-10-02 |
US20200092081A1 (en) | 2020-03-19 |
JP6782864B2 (ja) | 2020-11-11 |
CN109661792A (zh) | 2019-04-19 |
JP2020522753A (ja) | 2020-07-30 |
EP3469762A1 (en) | 2019-04-17 |
WO2018224382A1 (en) | 2018-12-13 |
CN109661792B (zh) | 2020-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 3A ANUIDADE. |
|
B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2646 DE 21-09-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |