A secure element (SE) is a secure operating system (OS) in a tamper-resistant processor chip or secure component. It can protect assets (root of trust, sensitive data, keys, certificates, applications) against high level software and hardware attacks. Applications that process this sensitive data on an SE are isolated and so operate within a controlled environment not impacted by software (including possible malware) found elsewhere on the OS.[1][2]

The hardware and embedded software meet the requirements of the Security IC Platform Protection Profile [PP 0084] including resistance to physical tampering scenarios described within it.[3] More than 96 billion secure elements have been produced and shipped between 2010 and 2021.[4]

SEs exist in different form factors; as devices such as smart card, SIM/UICC, smart microSD,[5] or as part of a larger device as an embedded or integrated SE.[6][7] SEs are an evolution of the traditional chip that was powering smart cards, which have been adapted to suit the needs of numerous use cases, such as smartphones, tablets, set top boxes, wearables, connected cars, and other internet of things (IoT) devices. The technology is widely used by technology firms such as Oracle,[8] Apple[9] and Samsung.[10]

SEs provide secure isolation, storage and processing for applications (called applets) they host while being isolated from the external world (e.g. rich OS and application processor when embedded in a smartphone) and from other applications running on the SE. Java Card and MULTOS are the most deployed standardized multi-application operating systems currently used to develop applications running on SE.[8]

Since 1999, GlobalPlatform has been the body responsible for standardizing secure element technologies to support a dynamic model of application management in a multi actor model. GlobalPlatform also runs Functional and Security Certification programmes for secure elements, and hosts a list of Functional Certified and Security Certified products. GlobalPlatform technology is also embedded in other standards such as ETSI SCP (now SET) since release 7.[11] A Common Criteria Secure Element Protection Profile has been released targeting EAL4+ level with ALC_DVS.2 and AVA_VAN.5 extension to standardize the security features of a secure element across markets.[12]

References

  1. Bertrand, Cambou. "Enhancing Secure Elements - Technology and Architecture" (PDF). Northern Arizona University.
  2. "What is Secure Element?". Kaspersky.
  3. "Security IC Platform Protection Profile with Augmentation Packages" (PDF). Common Criteria.
  4. "Worldwide Market of Secure Elements Confirms its Resiliency in 2021". Eurosmart.
  5. Lee, Nicole (June 6, 2013). "SD Association adds secure NFC support to its smartSD memory cards". Engadget.
  6. Mehta, Tushar (April 4, 2022). "What is Integrated SIM (iSIM)? How is it better than eSIM?". Digital Trends.
  7. Page, Carly (October 5, 2021). "Yubico's new hardware key features a fingerprint reader for passwordless logins". TechCrunch.
  8. 1 2 "The Open Application Platform for Secure Elements" (PDF). Oracle.
  9. "How Apple Pay keeps users' purchases protected". Apple.
  10. "Samsung Elevates Data Protection for Mobile Devices with New Security Chip Solution". Samsung. May 26, 2020.
  11. "Smart Cards; Remote APDU structure for UICC based applications (Release 12)" (PDF). ETSI.
  12. "GlobalPlatform Technology Secure Element Protection Profile Version 1.0" (PDF). Common Criteria.
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