This article discusses the security of the NGN service platform in terms of the open service interface and service deployment. It thinks that security of the open service interface can be solved by adding the service ...This article discusses the security of the NGN service platform in terms of the open service interface and service deployment. It thinks that security of the open service interface can be solved by adding the service access gateway and service management platform. The service access gateway provides security features to the open service interface concerning ID authentication, authorization, audit, encryption and integrity protection. For service deployment, its security can be solved by issuing related user digital certificates, deploying a firewall or an intrusion detection system, implementing load control, managing users' home location and displaying users' real-time IP addresses.展开更多
With the large scale adoption of Internet of Things(IoT)applications in people’s lives and industrial manufacturing processes,IoT security has become an important problem today.IoT security significantly relies on th...With the large scale adoption of Internet of Things(IoT)applications in people’s lives and industrial manufacturing processes,IoT security has become an important problem today.IoT security significantly relies on the security of the underlying hardware chip,which often contains critical information,such as encryption key.To understand existing IoT chip security,this study analyzes the security of an IoT security chip that has obtained an Arm Platform Security Architecture(PSA)Level 2 certification.Our analysis shows that the chip leaks part of the encryption key and presents a considerable security risk.Specifically,we use commodity equipment to collect electromagnetic traces of the chip.Using a statistical T-test,we find that the target chip has physical leakage during the AES encryption process.We further use correlation analysis to locate the detailed encryption interval in the collected electromagnetic trace for the Advanced Encryption Standard(AES)encryption operation.On the basis of the intermediate value correlation analysis,we recover half of the 16-byte AES encryption key.We repeat the process for three different tests;in all the tests,we obtain the same result,and we recover around 8 bytes of the 16-byte AES encryption key.Therefore,experimental results indicate that despite the Arm PSA Level 2 certification,the target security chip still suffers from physical leakage.Upper layer application developers should impose strong security mechanisms in addition to those of the chip itself to ensure IoT application security.展开更多
文摘This article discusses the security of the NGN service platform in terms of the open service interface and service deployment. It thinks that security of the open service interface can be solved by adding the service access gateway and service management platform. The service access gateway provides security features to the open service interface concerning ID authentication, authorization, audit, encryption and integrity protection. For service deployment, its security can be solved by issuing related user digital certificates, deploying a firewall or an intrusion detection system, implementing load control, managing users' home location and displaying users' real-time IP addresses.
基金This work was partially supported by the National Natural Science Foundation of China(Nos.61872243 and U1713212)Guangdong Basic and Applied Basic Research Foundation(No.2020A1515011489)+1 种基金the Natural Science Foundation of Guangdong Province-Outstanding Youth Program(No.2019B151502018)Shenzhen Science and Technology Innovation Commission(No.R2020A045).
文摘With the large scale adoption of Internet of Things(IoT)applications in people’s lives and industrial manufacturing processes,IoT security has become an important problem today.IoT security significantly relies on the security of the underlying hardware chip,which often contains critical information,such as encryption key.To understand existing IoT chip security,this study analyzes the security of an IoT security chip that has obtained an Arm Platform Security Architecture(PSA)Level 2 certification.Our analysis shows that the chip leaks part of the encryption key and presents a considerable security risk.Specifically,we use commodity equipment to collect electromagnetic traces of the chip.Using a statistical T-test,we find that the target chip has physical leakage during the AES encryption process.We further use correlation analysis to locate the detailed encryption interval in the collected electromagnetic trace for the Advanced Encryption Standard(AES)encryption operation.On the basis of the intermediate value correlation analysis,we recover half of the 16-byte AES encryption key.We repeat the process for three different tests;in all the tests,we obtain the same result,and we recover around 8 bytes of the 16-byte AES encryption key.Therefore,experimental results indicate that despite the Arm PSA Level 2 certification,the target security chip still suffers from physical leakage.Upper layer application developers should impose strong security mechanisms in addition to those of the chip itself to ensure IoT application security.
