Confidential VM vTPM non-volatile storage contents

A Confidential VM instance uses its Shielded VM vTPM's non-volatile storage to store attestation key certificates and templates. The following table details the addresses for where these elements are stored.

Index	Contents
`0x01c10000`	Compute Engine RSA attestation key certificate.
`0x01c10001`	Template for the Compute Engine RSA attestation key, in the `TPMT_PUBLIC` structure. For details on the `TPMT_PUBLIC` structure, see Trusted Platform Module Library, Part 2: Structures (PDF) .
`0x01c10002`	Compute Engine ECC attestation key certificate.
`0x01c10003`	Template for the Compute Engine ECC attestation key, in the `TPMT_PUBLIC` structure. For details on the `TPMT_PUBLIC` structure, see Trusted Platform Module Library, Part 2: Structures (PDF) .

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Last updated 2026-04-20 UTC.

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