TEE and TPM provide strong mobile security foundation
For some years, Trusted Computing Group (TCG) has been working with GlobalPlatform to help develop mobile security standards and solutions. Recently, Trustonic’s Jon Geater, who works with both organizations, spoke on the relationship between TPM and Trusted Execution Environment, or TEE. A new video has been posted of that talk, which was held at the GlobalPlatform TEE conference. The video is available at https://www.youtube.com/watch?v=LzPVxCxrZ0Y.
Greater addresses in this talk the complementary nature of the TPM and TEE standards, despite some confusion that they are competitive.
TEE “…is a separate execution environment…that provides security services…and isolates access to hardware and software security resources from the rich OS and applications.” The TPM, in fact, “…is a secure crypto process…designed to secure hardware by integrating cryptographic keys into devices…”. So, TEE and TPM do different things BUT they work together.
In current, updated specifications for the TPM Mobile, the root of trust is supported by the TEE, which provides platform integrity, isolated execution and access to hardware-based root of trust.
There are demonstrations and supporting materials available, including this white paper.
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