Powering the Next Generation of Confidential AI

Google Cloud has built a serving platform to support Apple's expanded Private Cloud Compute (PCC) system. This collaboration is the result of close cooperation between Google, Intel, and NVIDIA to meet Apple's strict security, confidentiality, and transparency goals.

The core technologies are Confidential Computing and the Titanium security architecture. The Titanium architecture, built on the Titan chip, provides a hardware Root of Trust, while Confidential Computing ensures that data is encrypted and protected at every stage—at rest, in transit, and in use.

The key technical elements supporting Apple PCC are as follows:

• Google Cloud Confidential Computing: Leverages Intel TDX and NVIDIA Confidential Computing to provide a hardware-based TEE (Trusted Execution Environment).
• Titanium Security Architecture: Ensures the integrity of the boot process and hardware platform through the Titan chip.
• Intel TDX and NVIDIA Confidential Computing: Protects the entire computing path from CPU to GPU, maintaining security for data in use even during high-performance AI inference.
• Open Source Transparency: Co-designed a dedicated open source host stack to allow independent verification of the system's security properties.