US Patent 9490984 Method and apparatus for trusted authentication and logon

A method and apparatus for trusted authentication and logon is disclosed. A trusted platform module (TPM) based logon method is presented for authentication and access. A user registers an identity with an identity provider that is tightly bound to the user's specific platform, e.g., the TPM. If the user decides to login, for example to a service provider using this identity, the identity provider challenges the user to provide the correct credentials. The credentials consist of a TPM generated ticket, that is, a credential chain. This allows the user to login without the need for a password at the identity provider.