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How to generate and Store Certificate key in TPM?
We would like to use TPM to store Certificate and Certificate Keys in Windows 7 and Windows 10 instead of external smart cards. We have Enterprise PKI infrastructure to issue the Certificates. so we would need your expertise advise, how could we accomplish this task.
How is a TPM protected certificate protected from malware?
Anti-Hammering: When used in conjunction with passwords or PINs a TPM will lock out if a pin or password is entered incorrectly too many times. Key Isolation: Private keys protected by the TPM are never exposed to the operating system or malware. All private key operations are handled within the TPM.
Where is the TPM owner authorization value stored?
In some enterprise situations, the TPM owner authorization value is configured to be stored centrally in Active Directory, and it is not stored on the local system. An administrator can launch the TPM MMC and choose to reset the TPM lockout time. If the TPM owner password is stored locally, it is used to reset the lockout time.
What happens if the TPM password is not available?
If the TPM owner password is not available on the local system, the administrator needs to provide it. If an administrator attempts to reset the TPM lockout state with the wrong TPM owner password, the TPM does not allow another attempt to reset the lockout state for 24 hours.
Can you use TPM key attestation on standalone CA?
TPM key attestation is not supported for a standalone CA. TPM key attestation does not support non-persistent certificate processing. To configure the certificate template for TPM key attestation, do the following configuration steps: Ensure Windows Server 2012 R2 is selected for the Certification Authority.
Where can I get an EK certificate for my TPM?
The EK certificate is a public key certificate, holding the public portion of the TPM’s life-long identity/storage key. It is generally signed by the TPM manufacturer. You must still validate it using a cert chain which can be obtained from the manufacturer’s web site.
How to do TPM key attestation in PowerShell?
Use Windows PowerShell to create two new certificate stores on the certification authority (CA) server that will perform TPM key attestation. Obtain the intermediate and root CA certificate (s) from manufacturer (s) that you want to allow in your enterprise environment.