Research on gesture cryptographic platform based on trusted computing

To solve the multi-user identification problems in multi-touch system, based on trusted computing theory, this paper presents the identity authentication platform which is realized with gesture passwords. It uses the collaboration of four cameras to locate touches and quantities gesture tracks, and then calculates the hash values as user passwords. It realizes identity authentication by comparing the passwords that users input with the ones stored in TPM. Identity authentication platform is regarded as a part of the trusted chain. And it builds the root of trust through trusted booting process to ensure the whole platform trusted.