TPM-JS lets you experiment with a Trusted Platform Module in the browser

TPM-JS is a platform that allows users to experiment with a software Trusted Platform Module (TPM) in a browser environment. It incorporates libraries such as the Intel TPM2 Software Stack, IBM software TPM simulator, and Google BoringSSL to provide high-level APIs for managing TPM resources and executing TPM commands. TPMs are cost-effective devices that offer robust security features, including key generation, measured boot, PCRs, remote attestation, and key sealing. The site also covers TPM properties, such as limited storage capacity, single-threaded command execution, and key hierarchies like the endorsement, platform, owner, and null hierarchies. Users can interact with the TPM through commands like TPM2_CC_GetCapability for querying properties, TPM2_CC_TestParms for testing algorithms, and TPM2_CC_CreatePrimary for generating cryptographic keys securely. The platform emphasizes the importance of secure key generation and remote system attestation facilitated by the TPM's capabilities.