AU2014265030B2 - A computer implemented system and method for lightweight authentication on datagram transport for internet of things - Google Patents
A computer implemented system and method for lightweight authentication on datagram transport for internet of things Download PDFInfo
- Publication number
- AU2014265030B2 AU2014265030B2 AU2014265030A AU2014265030A AU2014265030B2 AU 2014265030 B2 AU2014265030 B2 AU 2014265030B2 AU 2014265030 A AU2014265030 A AU 2014265030A AU 2014265030 A AU2014265030 A AU 2014265030A AU 2014265030 B2 AU2014265030 B2 AU 2014265030B2
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- AU
- Australia
- Prior art keywords
- random number
- client
- server
- session key
- response
- Prior art date
- Legal status (The legal status 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 status listed.)
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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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3271—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using challenge-response
-
- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3271—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using challenge-response
- H04L9/3273—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using challenge-response for mutual authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0869—Network architectures or network communication protocols for network security for authentication of entities for achieving mutual authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- 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
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
-
- 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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- 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
- H04L2209/80—Wireless
- H04L2209/805—Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/166—Implementing security features at a particular protocol layer at the transport layer
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computing Systems (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Computer And Data Communications (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN377/MUM/2014 | 2014-02-03 | ||
| IN377MU2014 | 2014-02-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2014265030A1 AU2014265030A1 (en) | 2015-08-20 |
| AU2014265030B2 true AU2014265030B2 (en) | 2016-04-21 |
Family
ID=51903835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2014265030A Active AU2014265030B2 (en) | 2014-02-03 | 2014-11-18 | A computer implemented system and method for lightweight authentication on datagram transport for internet of things |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9780954B2 (enExample) |
| EP (1) | EP2903204A1 (enExample) |
| JP (1) | JP6301244B2 (enExample) |
| KR (1) | KR102068367B1 (enExample) |
| CN (2) | CN112217794A (enExample) |
| AU (1) | AU2014265030B2 (enExample) |
| ZA (1) | ZA201408487B (enExample) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9258303B1 (en) * | 2014-08-08 | 2016-02-09 | Cellcrypt Group Limited | Method of providing real-time secure communication between end points in a network |
| JP6850530B2 (ja) * | 2014-10-20 | 2021-03-31 | タタ コンサルタンシー サービシズ リミテッドTATA Consultancy Services Limited | セキュアセッションの確立と暗号化データ交換のためのコンピュータ利用システム及びコンピュータ利用方法 |
| KR101611944B1 (ko) * | 2015-03-13 | 2016-04-12 | 한국전자통신연구원 | 데이터 암호화 기능 선택적 적용 방법 |
| JP6023853B1 (ja) * | 2015-05-29 | 2016-11-09 | 日本電信電話株式会社 | 認証装置、認証システム、認証方法、およびプログラム |
| US10469464B2 (en) * | 2015-06-09 | 2019-11-05 | Intel Corporation | Self-configuring key management system for an internet of things network |
| KR101707602B1 (ko) * | 2015-09-25 | 2017-02-17 | 상명대학교 천안산학협력단 | 해시 트리 기반 보안 메시지 인증 방법 및 이를 위한 장치 |
| TWI576779B (zh) * | 2015-10-13 | 2017-04-01 | Nat Sun Yat-Sen Univ | Method and Method of Payment Authentication System for Internet of Things |
| CN107113172B (zh) * | 2015-12-10 | 2019-03-29 | 深圳市大疆创新科技有限公司 | 无人机认证方法,安全通信方法及对应系统 |
| KR101709086B1 (ko) | 2015-12-24 | 2017-02-23 | 서강대학교산학협력단 | 사물 인터넷 환경에서의 컨텍스트 기반 보안방법 및 그에 따른 시스템 |
| EP3395091B1 (en) | 2015-12-24 | 2021-05-26 | Nokia Technologies Oy | Authentication and key agreement in communication network |
| CN108476224B (zh) * | 2016-01-19 | 2020-12-04 | 英国电讯有限公司 | 认证通信连接的方法、数据通信装置和存储介质 |
| CN105763321B (zh) * | 2016-04-06 | 2018-09-28 | 深圳市奔迈科技有限公司 | 一种物联网通讯加密方法和装置 |
| KR101838511B1 (ko) * | 2016-05-17 | 2018-03-14 | 현대자동차주식회사 | 암호화를 적용한 제어기 보안 방법 및 그 장치 |
| US10271209B2 (en) * | 2016-06-12 | 2019-04-23 | Apple Inc. | Session protocol for backward security between paired devices |
| CN106330941A (zh) * | 2016-08-31 | 2017-01-11 | 成都秦川科技发展有限公司 | 物联网私密通道的信息私密分送及对象控制方法、装置 |
| CN106330943A (zh) * | 2016-08-31 | 2017-01-11 | 成都秦川科技发展有限公司 | 物联网私密通道和公共网络模糊信息分送控制方法及装置 |
| WO2018048411A1 (en) * | 2016-09-08 | 2018-03-15 | Hewlett-Packard Development Company, L.P. | Establishing shared key data for wireless pairing |
| CN108156126B (zh) * | 2016-12-02 | 2020-12-08 | 阿里巴巴集团控股有限公司 | 物联网设备的烧录校验方法及装置、身份认证方法及装置 |
| JP2018092099A (ja) * | 2016-12-07 | 2018-06-14 | キヤノン株式会社 | 画像形成装置、画像形成方法 |
| US10943005B2 (en) | 2017-11-22 | 2021-03-09 | Aeris Communications, Inc. | Secure authentication of devices for internet of things |
| US11582233B2 (en) | 2017-11-22 | 2023-02-14 | Aeris Communications, Inc. | Secure authentication of devices for Internet of Things |
| CN108040042B (zh) * | 2017-12-05 | 2020-07-03 | 重庆邮电大学 | 一种针对多播情况下CoAP协议的安全方法 |
| US10715511B2 (en) * | 2018-05-03 | 2020-07-14 | Honeywell International Inc. | Systems and methods for a secure subscription based vehicle data service |
| CN110719248B (zh) * | 2018-07-12 | 2021-08-17 | 中移(杭州)信息技术有限公司 | 用户数据报协议报文的转发方法及装置 |
| CN110839240B (zh) * | 2018-08-17 | 2022-07-05 | 阿里巴巴集团控股有限公司 | 一种建立连接的方法及装置 |
| CN110912852B (zh) * | 2018-09-14 | 2022-04-08 | 阿里巴巴集团控股有限公司 | 获取密钥的方法、装置和系统,存储介质和计算机终端 |
| WO2020056272A1 (en) * | 2018-09-14 | 2020-03-19 | Spectrum Brands, Inc. | Authentication of internet of things devices, including electronic locks |
| CN109257170A (zh) * | 2018-11-02 | 2019-01-22 | 美的集团股份有限公司 | 密钥协商方法、设备、终端、存储介质以及系统 |
| CN109245885A (zh) * | 2018-11-02 | 2019-01-18 | 美的集团股份有限公司 | 密钥协商方法、设备、存储介质以及系统 |
| US11362837B2 (en) | 2018-12-10 | 2022-06-14 | Cisco Technology, Inc. | Generating trustable RPL messages having root-signed rank values |
| US11057211B2 (en) * | 2018-12-10 | 2021-07-06 | Cisco Technology, Inc. | Secured protection of advertisement parameters in a zero trust low power and lossy network |
| CN111342956B (zh) * | 2018-12-19 | 2021-06-15 | 美的集团股份有限公司 | 一种家电设备通信的方法、存储介质、家电设备和装置 |
| CN110138772B (zh) * | 2019-05-13 | 2022-02-25 | 上海英恒电子有限公司 | 一种通信方法、装置、系统、设备和存储介质 |
| CN110234115A (zh) * | 2019-05-23 | 2019-09-13 | 深圳和而泰家居在线网络科技有限公司 | 多设备通信系统和数据通信方法 |
| WO2020258336A1 (zh) * | 2019-06-28 | 2020-12-30 | Oppo广东移动通信有限公司 | 一种资源配置方法、设备及存储介质 |
| KR20220051306A (ko) * | 2019-08-23 | 2022-04-26 | 삼성전자주식회사 | 전자 디바이스 및 전자 디바이스가 타겟 디바이스에게 제어 명령을 전달하는 방법 |
| CN112448809B (zh) * | 2019-08-30 | 2022-07-22 | 华为技术有限公司 | 密钥配置系统及相关方法和产品 |
| CN113132087B (zh) * | 2019-12-30 | 2025-07-29 | 国民技术股份有限公司 | 物联网、身份认证及保密通信方法、芯片、设备及介质 |
| CN111835752B (zh) * | 2020-07-09 | 2022-04-12 | 国网山西省电力公司信息通信分公司 | 基于设备身份标识的轻量级认证方法及网关 |
| ES2788976B2 (es) * | 2020-07-24 | 2022-03-16 | Vega Crespo Jose Agustin Francisco Javier | Sistema para el cifrado y autenticacion de comunicaciones con autenticacion mutua de los comunicantes |
| CN111917619B (zh) * | 2020-07-29 | 2022-07-29 | 华人运通(江苏)技术有限公司 | 通信方法、装置、电子设备和可读存储介质 |
| CN112118223B (zh) * | 2020-08-11 | 2023-06-20 | 北京智芯微电子科技有限公司 | 主站与终端的认证方法、主站、终端及存储介质 |
| CN112291773B (zh) | 2020-12-31 | 2021-04-06 | 飞天诚信科技股份有限公司 | 一种认证器及其通信方法 |
| CN112954680B (zh) * | 2021-03-02 | 2022-12-09 | 西安电子科技大学 | 抗追溯攻击的无线传感器网络轻量级接入认证方法及系统 |
| CN114040390B (zh) * | 2021-11-17 | 2023-05-09 | 国网福建省电力有限公司 | 一种基于量子安全的5g虚商密钥库分发方法 |
| TWI802447B (zh) * | 2022-06-21 | 2023-05-11 | 桓達科技股份有限公司 | 感測器無線傳訊的封包加解密方法 |
| WO2024160678A1 (en) * | 2023-01-30 | 2024-08-08 | Giesecke+Devrient Mobile Security Germany Gmbh | Secure session capability by encryption of random numbers in handshake messages under a preshared key |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100316217A1 (en) * | 2009-06-10 | 2010-12-16 | Infineon Technologies Ag | Generating a session key for authentication and secure data transfer |
| WO2013014609A1 (en) * | 2011-07-25 | 2013-01-31 | Koninklijke Philips Electronics N.V. | Methods, devices and systems for establishing end-to-end secure connections and for securely communicating data packets |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6377691B1 (en) * | 1996-12-09 | 2002-04-23 | Microsoft Corporation | Challenge-response authentication and key exchange for a connectionless security protocol |
| DE69839305T2 (de) * | 1997-02-27 | 2009-04-09 | Takeda Pharmaceutical Co. Ltd. | Aminderivate, ihre herstellung und verwendung als inhibitoren der produktion von amyloid-beta |
| US6148405A (en) * | 1997-11-10 | 2000-11-14 | Phone.Com, Inc. | Method and system for secure lightweight transactions in wireless data networks |
| WO2001013201A2 (en) | 1999-08-12 | 2001-02-22 | Sarnoff Corporation | Peer-to-peer network user authentication protocol |
| US7424615B1 (en) | 2001-07-30 | 2008-09-09 | Apple Inc. | Mutually authenticated secure key exchange (MASKE) |
| US20030093680A1 (en) * | 2001-11-13 | 2003-05-15 | International Business Machines Corporation | Methods, apparatus and computer programs performing a mutual challenge-response authentication protocol using operating system capabilities |
| US20030221126A1 (en) * | 2002-05-24 | 2003-11-27 | International Business Machines Corporation | Mutual authentication with secure transport and client authentication |
| JP2004241802A (ja) * | 2003-02-03 | 2004-08-26 | Matsushita Electric Ind Co Ltd | コンテンツ配信システム及びコンテンツ蓄積装置 |
| CN100552661C (zh) | 2004-06-28 | 2009-10-21 | Nds有限公司 | 用于确定接近度的系统 |
| US8660268B2 (en) * | 2008-04-29 | 2014-02-25 | Red Hat, Inc. | Keyed pseudo-random number generator |
| US8281134B2 (en) * | 2009-01-29 | 2012-10-02 | Symbol Technologies, Inc. | Methods and apparatus for layer 2 and layer 3 security between wireless termination points |
| EP2276278A1 (en) * | 2009-07-13 | 2011-01-19 | Research In Motion Limited | Methods and apparatus for maintaining secure connections in a wireless communication network |
| CN101789934B (zh) * | 2009-11-17 | 2012-09-05 | 飞天诚信科技股份有限公司 | 网上安全交易方法和系统 |
| US8467532B2 (en) * | 2010-01-04 | 2013-06-18 | Tata Consultancy Services Limited | System and method for secure transaction of data between a wireless communication device and a server |
| US8842833B2 (en) * | 2010-07-09 | 2014-09-23 | Tata Consultancy Services Limited | System and method for secure transaction of data between wireless communication device and server |
| CN102571702B (zh) * | 2010-12-22 | 2014-11-05 | 中兴通讯股份有限公司 | 物联网中的密钥生成方法、系统和设备 |
-
2014
- 2014-11-14 EP EP14193246.7A patent/EP2903204A1/en not_active Withdrawn
- 2014-11-18 AU AU2014265030A patent/AU2014265030B2/en active Active
- 2014-11-19 ZA ZA2014/08487A patent/ZA201408487B/en unknown
- 2014-12-05 KR KR1020140174273A patent/KR102068367B1/ko active Active
- 2014-12-16 JP JP2014253636A patent/JP6301244B2/ja active Active
- 2014-12-17 US US14/573,755 patent/US9780954B2/en active Active
-
2015
- 2015-01-13 CN CN202010929142.1A patent/CN112217794A/zh active Pending
- 2015-01-13 CN CN201510017231.8A patent/CN104821930A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100316217A1 (en) * | 2009-06-10 | 2010-12-16 | Infineon Technologies Ag | Generating a session key for authentication and secure data transfer |
| WO2013014609A1 (en) * | 2011-07-25 | 2013-01-31 | Koninklijke Philips Electronics N.V. | Methods, devices and systems for establishing end-to-end secure connections and for securely communicating data packets |
Non-Patent Citations (2)
| Title |
|---|
| LIU, C. -X. et al., "The Novel Authentication Scheme Based on Theory of Quadratic Residues for Wireless Sensor Networks", International Journal of Distributed Sensor Networks, 2013 * |
| UKIL, A. et al., "Lightweight Security Scheme for Vehicle Tracking System Using CoAP", International Workshop on Adaptive Security (ASPI '13), 08-12 September 2013 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201408487B (en) | 2016-06-29 |
| KR20150091969A (ko) | 2015-08-12 |
| JP2015146567A (ja) | 2015-08-13 |
| US9780954B2 (en) | 2017-10-03 |
| EP2903204A1 (en) | 2015-08-05 |
| AU2014265030A1 (en) | 2015-08-20 |
| CN112217794A (zh) | 2021-01-12 |
| CN104821930A (zh) | 2015-08-05 |
| US20150222439A1 (en) | 2015-08-06 |
| KR102068367B1 (ko) | 2020-01-20 |
| JP6301244B2 (ja) | 2018-03-28 |
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