BR112014007061A2 - sistema criptográfico, método de geração de uma chave secreta de usuário para utilização em um sistema criptográfico com base em atributo hierárquico, método de descriptografia de um ciphertext para utilização em um sistema criptográfico com base em atributo hierárquico, método de criptografia de uma mensagem para utilização em um sistema criptográfico com base em atributo hierárquico, e, programa de computador - Google Patents
sistema criptográfico, método de geração de uma chave secreta de usuário para utilização em um sistema criptográfico com base em atributo hierárquico, método de descriptografia de um ciphertext para utilização em um sistema criptográfico com base em atributo hierárquico, método de criptografia de uma mensagem para utilização em um sistema criptográfico com base em atributo hierárquico, e, programa de computadorInfo
- Publication number
- BR112014007061A2 BR112014007061A2 BR112014007061A BR112014007061A BR112014007061A2 BR 112014007061 A2 BR112014007061 A2 BR 112014007061A2 BR 112014007061 A BR112014007061 A BR 112014007061A BR 112014007061 A BR112014007061 A BR 112014007061A BR 112014007061 A2 BR112014007061 A2 BR 112014007061A2
- Authority
- BR
- Brazil
- Prior art keywords
- cryptographic system
- secret key
- hierarchical attribute
- based cryptographic
- attribute
- 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
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
-
- 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
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
- H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
- H04L9/0836—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key using tree structure or hierarchical structure
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
- H04L9/0847—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving identity based encryption [IBE] schemes
-
- 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
- H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic 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
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
- H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
- H04L9/3073—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
-
- 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)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Algebra (AREA)
- Physics & Mathematics (AREA)
- Storage Device Security (AREA)
Abstract
resumo sistema criptográfico, método de geração de uma chave secreta de usuário para utilização em um sistema criptográfico com base em atributo hierárquico, método de descriptografia de um ciphertext para utilização em um sistema criptográfico com base em atributo hierárquico, método de criptografia de uma mensagem para utilização em um sistema criptográfico com base em atributo hierárquico, e, programa de computador uma autoridade de domínio 13 para utilização em uma hierarquia de autoridades de domínio em um sistema criptográfico hierárquico. a autoridade de domínio 13 compreende um gerador de chave secreta de usuário 21 para gerar uma chave secreta de usuário com base em uma chave secreta de domínio e em uma ou mais representações de atributo, para obter uma chave secreta de usuário associada a um conjunto de atributos correspondentes às representações de atributo, e em que a chave secreta de domínio tem como base uma chave secreta de domínio de uma autoridade de domínio de origem ou uma chave secreta raiz de uma autoridade raiz da hierarquia de autoridades de domínio e em que as representações de atributo são independentes da hierarquia. um descriptografador faz uso da chave secreta de usuário. um criptografador gera o ciphertext que pode ser descriptografado pelo descriptografador. 1/1
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161540033P | 2011-09-28 | 2011-09-28 | |
PCT/IB2012/055017 WO2013046102A2 (en) | 2011-09-28 | 2012-09-21 | Hierarchical attribute-based encryption and decryption |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112014007061A2 true BR112014007061A2 (pt) | 2017-03-28 |
Family
ID=47192018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112014007061A BR112014007061A2 (pt) | 2011-09-28 | 2012-09-21 | sistema criptográfico, método de geração de uma chave secreta de usuário para utilização em um sistema criptográfico com base em atributo hierárquico, método de descriptografia de um ciphertext para utilização em um sistema criptográfico com base em atributo hierárquico, método de criptografia de uma mensagem para utilização em um sistema criptográfico com base em atributo hierárquico, e, programa de computador |
Country Status (7)
Country | Link |
---|---|
US (1) | US10211984B2 (pt) |
EP (1) | EP2756627B1 (pt) |
JP (1) | JP6096782B2 (pt) |
CN (1) | CN103891195B (pt) |
BR (1) | BR112014007061A2 (pt) |
MX (1) | MX2014002142A (pt) |
WO (1) | WO2013046102A2 (pt) |
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MX2014002142A (es) | 2011-09-28 | 2014-03-27 | Koninkl Philips Nv | Cifrado y descifrado basados en atributos jerarquicos. |
KR101301609B1 (ko) * | 2012-05-31 | 2013-08-29 | 서울대학교산학협력단 | 비밀키 생성 장치 및 방법, 그리고 그 방법을 컴퓨터에서 실행시키기 위한 프로그램을 기록한 기록매체 |
JP2014068140A (ja) * | 2012-09-25 | 2014-04-17 | Sony Corp | 情報処理装置、情報処理方法及びプログラム |
US9465947B2 (en) * | 2013-08-05 | 2016-10-11 | Samsung Sds America, Inc. | System and method for encryption and key management in cloud storage |
CN104144057B (zh) * | 2014-07-10 | 2017-10-31 | 北京大学 | 一种生成安全解密密钥的cp‑abe方法 |
US9280683B1 (en) * | 2014-09-22 | 2016-03-08 | International Business Machines Corporation | Multi-service cloud storage decision optimization process |
US9495545B2 (en) * | 2014-11-13 | 2016-11-15 | Sap Se | Automatically generate attributes and access policies for securely processing outsourced audit data using attribute-based encryption |
US10560440B2 (en) | 2015-03-12 | 2020-02-11 | Fornetix Llc | Server-client PKI for applied key management system and process |
US10630686B2 (en) | 2015-03-12 | 2020-04-21 | Fornetix Llc | Systems and methods for organizing devices in a policy hierarchy |
US9967289B2 (en) | 2015-03-12 | 2018-05-08 | Fornetix Llc | Client services for applied key management systems and processes |
US10965459B2 (en) | 2015-03-13 | 2021-03-30 | Fornetix Llc | Server-client key escrow for applied key management system and process |
US9678894B2 (en) * | 2015-03-27 | 2017-06-13 | Intel Corporation | Cache-less split tracker architecture for replay protection trees |
CN104852901A (zh) * | 2015-04-10 | 2015-08-19 | 中国民航大学 | 基于属性的swim网络授权方法 |
US10880281B2 (en) | 2016-02-26 | 2020-12-29 | Fornetix Llc | Structure of policies for evaluating key attributes of encryption keys |
US11063980B2 (en) * | 2016-02-26 | 2021-07-13 | Fornetix Llc | System and method for associating encryption key management policy with device activity |
US10917239B2 (en) | 2016-02-26 | 2021-02-09 | Fornetix Llc | Policy-enabled encryption keys having ephemeral policies |
US10348485B2 (en) | 2016-02-26 | 2019-07-09 | Fornetix Llc | Linking encryption key management with granular policy |
US10860086B2 (en) | 2016-02-26 | 2020-12-08 | Fornetix Llc | Policy-enabled encryption keys having complex logical operations |
US10931653B2 (en) | 2016-02-26 | 2021-02-23 | Fornetix Llc | System and method for hierarchy manipulation in an encryption key management system |
SG10201609090XA (en) * | 2016-10-31 | 2018-05-30 | Huawei Int Pte Ltd | System and method for controlling access to encrypted vehicular data |
US10469254B2 (en) | 2017-03-29 | 2019-11-05 | Intuit Inc. | Method and system for hierarchical cryptographic key management |
US10491576B1 (en) | 2017-06-16 | 2019-11-26 | Intuit Inc. | System and method for security breach response using hierarchical cryptographic key management |
CN107276766B (zh) * | 2017-07-27 | 2020-05-19 | 河南科技大学 | 一种多授权属性加解密方法 |
EP3679684B1 (en) * | 2017-09-29 | 2022-07-20 | Huawei International Pte. Ltd. | Securing outside-vehicle communication using ibc |
CN107948144B (zh) * | 2017-11-17 | 2021-05-18 | 国网重庆市电力公司南岸供电分公司 | 一种基于智能电网信息安全检测的威胁处理*** |
WO2019196042A1 (zh) * | 2018-04-12 | 2019-10-17 | 深圳大学 | 支持分层搜索的加密健康记录的获取方法和*** |
CN109857385B (zh) * | 2018-12-24 | 2022-01-28 | 四川长虹电器股份有限公司 | 应用程序文件打包方法、安装方法及启动方法 |
CN109871668B (zh) * | 2019-03-08 | 2022-11-15 | 重庆邮电大学 | 智能电网中基于时限属性密码的认证、授权和访问控制方法 |
US11310041B2 (en) * | 2019-04-05 | 2022-04-19 | Arizona Board Of Regents On Behalf Of Arizona State University | Method and apparatus for achieving fine-grained access control with discretionary user revocation over cloud data |
WO2020242614A1 (en) | 2019-05-30 | 2020-12-03 | Kim Bong Mann | Quantum safe cryptography and advanced encryption and key exchange (aeke) method for symmetric key encryption/exchange |
US11943350B2 (en) * | 2019-10-16 | 2024-03-26 | Coinbase, Inc. | Systems and methods for re-using cold storage keys |
US11347882B2 (en) * | 2020-06-02 | 2022-05-31 | Huawei Technologies Co., Ltd. | Methods and systems for secure data sharing with granular access control |
CN111917721B (zh) * | 2020-06-28 | 2022-04-05 | 石家庄铁道大学 | 基于区块链的属性加密方法 |
CN113098683B (zh) * | 2021-03-17 | 2022-05-03 | 武汉理工大学 | 一种基于属性的数据加密方法和*** |
CN113271309B (zh) * | 2021-05-24 | 2022-04-08 | 四川师范大学 | 一种分层文件加密方法及*** |
CN113824559B (zh) * | 2021-09-29 | 2023-05-12 | 福建师范大学 | 基于sm9的高效分层加密方法 |
CN115603911A (zh) * | 2022-10-20 | 2023-01-13 | 上海飞机制造有限公司(Cn) | 一种属性基加密方法、装置、电子设备及存储介质 |
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US8837718B2 (en) | 2009-03-27 | 2014-09-16 | Microsoft Corporation | User-specified sharing of data via policy and/or inference from a hierarchical cryptographic store |
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TW201215070A (en) * | 2010-06-14 | 2012-04-01 | Revere Security Corp | Key Management Systems and methods for shared secret ciphers |
MX2014002142A (es) | 2011-09-28 | 2014-03-27 | Koninkl Philips Nv | Cifrado y descifrado basados en atributos jerarquicos. |
-
2012
- 2012-09-21 MX MX2014002142A patent/MX2014002142A/es active IP Right Grant
- 2012-09-21 EP EP12787865.0A patent/EP2756627B1/en not_active Revoked
- 2012-09-21 BR BR112014007061A patent/BR112014007061A2/pt not_active Application Discontinuation
- 2012-09-21 US US14/348,222 patent/US10211984B2/en active Active
- 2012-09-21 JP JP2014532524A patent/JP6096782B2/ja active Active
- 2012-09-21 CN CN201280048688.XA patent/CN103891195B/zh active Active
- 2012-09-21 WO PCT/IB2012/055017 patent/WO2013046102A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2013046102A3 (en) | 2013-05-30 |
CN103891195B (zh) | 2017-11-10 |
WO2013046102A2 (en) | 2013-04-04 |
JP2014531850A (ja) | 2014-11-27 |
EP2756627B1 (en) | 2018-11-14 |
CN103891195A (zh) | 2014-06-25 |
MX2014002142A (es) | 2014-03-27 |
EP2756627A2 (en) | 2014-07-23 |
US20140229736A1 (en) | 2014-08-14 |
US10211984B2 (en) | 2019-02-19 |
JP6096782B2 (ja) | 2017-03-15 |
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B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
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