GCP Confidential VM (Google Cloud・2024年)（ジーシーピーコンフィデンシャルブイエム）
2024年Google Cloud Platform Confidential VM service・AMD SEV (2020年Q3 GA) + AMD SEV-SNP (2023年Q4 GA・N2D series) + Intel TDX (2024年Q1 Beta・C3 series) の 3 TEE対応 + Google Confidential Space (Multi-party Confidential Computing) + Confidential GKE Node (Google Kubernetes Engine Confidential) + Confidential AI (NVIDIA H100 Preview) + Cloud KMS / Cloud HSM統合・Workload Identity Federation + Container-Optimized OS Confidential variant・Healthcare PII (HIPAA BAA) / Finance Compliance / Government (FedRAMP High) 対応・$0.08-$5.0/hour・Azure Confidential VM直接競合のGoogle Cloud主軸Confidential Computing service。
概要
GCP Confidential VM は、2024年Q1にIntel TDX support追加でMulti-TEE Confidential Computing service拡張したGoogle Cloud Platform のEnterprise Cloud Confidential Computing service。Google Cloud初のConfidential VM (AMD SEV ベース) は2020年Q3 GA・AMD SEV-SNP (2023年Q4 GA・N2D series Milan EPYC base) → Intel TDX (2024年Q1 Beta・C3 series Sapphire Rapids base) と Multi-TEE展開し Azure Confidential VM 直接競合のGoogle Cloud主軸 Confidential Computing service。AMD SEV / SEV-SNP / Intel TDX 3 TEE technology対応 + Google独自Confidential Space (Multi-party Confidential Computing・複数会社/組織が一つのConfidential workload で機密データ共有計算可能) + Confidential GKE Node (Google Kubernetes Engine の Worker Node が Confidential) + Confidential AI (NVIDIA H100 Confidential Compute・2024年Q2 Preview) + Cloud KMS / Cloud HSM (FIPS 140-2 Level 3 certified) 統合 + Workload Identity Federation (Confidential VM内workloadがGoogle Cloud APIs に外部credentialなしでaccess) + Container-Optimized OS (COS) Confidential variant・Healthcare PII (HIPAA BAA・Business Associate Agreement対応) / Finance (PCI DSS) / Government (FedRAMP High) Compliance要件対応・$0.08-$5.0/hour pricing・Azure Confidential VM ($0.08-$6.0/hour) 直接競合 + AWS Nitro Enclave (Custom pricing) 競合 + Oracle Cloud Confidential VM ($0.06-$4.5/hour) 競合。
主な特徴・仕組み
- TEE Multi-Support: AMD SEV (2020年) + AMD SEV-SNP (2023年) + Intel TDX (2024年Beta)
- VM Family: N2D (AMD Milan EPYC) / C3 (Intel Sapphire Rapids・Intel TDX対応) / C3D (AMD Genoa EPYC・Confidential)
- Confidential Space: Multi-party Confidential Computing・複数組織が機密データを単一Confidential workload内で共有計算可能 (GCP独自USP)
- Confidential GKE Node: Google Kubernetes Engine Worker Node自体がConfidential VM・Pod / Container全てConfidential境界内実行
- Confidential AI: NVIDIA H100 PCIe / SXM5 Confidential Compute (2024年Q2 Preview) + Vertex AI Confidential mode
- Cloud KMS Integration: Confidential VM key release (CVM KMS) + HSM-backed Master Key + Attestation-bound Key release
- Workload Identity Federation: Confidential VM workload→Google Cloud APIs認証 (外部Credential不要・Attestation-based auth)
- Container-Optimized OS (COS) Confidential: Lightweight OS for Container workload・Confidential boot + Attestation
- Compliance: FedRAMP High / HIPAA BAA / PCI DSS / SOC 2 Type II / ISO 27001 / GDPR / FIPS 140-2 Level 3
- Pricing: $0.08-$5.0/hour (standard VM +12-20% premium)
- Regions: 35+ regions (Azure 60+より少だがコア regions全展開)
スペック比較表
| Cloud Confidential VM | Vendor | TEE | Multi-party | Confidential K8s |
|---|---|---|---|---|
| GCP Confidential VM | SEV + SEV-SNP + TDX (Beta) | ◎ Confidential Space (独自) | ◎ Confidential GKE | |
| Azure Confidential VM | Microsoft | TDX + SEV-SNP + CCA | △ (3rd party tool必要) | ◎ Confidential AKS |
| AWS Nitro Enclave | AWS | Nitro (独自TEE) | △ (Custom) | △ (EKS Custom) |
| Oracle Cloud Confidential | Oracle | SEV-SNP | × | × |
| Alibaba Cloud Confidential | Alibaba | SGX + TDX | × | × |
具体例・対応製品
- GCP N2D (AMD SEV-SNP・Confidential): 2-128 vCPU・$0.08-$5.0/hour
- GCP C3 (Intel TDX・Confidential・Beta): 4-176 vCPU・$0.09-$5.5/hour・Sapphire Rapids base
- GCP C3D (AMD Genoa・Confidential): 4-180 vCPU・$0.085-$5.2/hour・AMD Zen 4 base
- Confidential Space (Multi-party MPC): 複数組織機密データ共有Computing platform・Healthcare/Finance Joint Compute
- Confidential GKE Node: GKE 1.27+対応・Confidential Worker Node全Pod確実Confidential
自作PCでの選び方・注意点
GCP Confidential VM は「Multi-party Confidential Computing (Confidential Space・複数組織が機密データを共有計算)」「Google Kubernetes Engine 深い統合 (Confidential GKE Node)」「Google Cloud ecosystem (BigQuery / Vertex AI / Cloud Pub/Sub) との 統合 Confidential Computing」用途の本命Cloud Confidential Computing service。Multi-party Confidential Computing (Confidential Space) はAzure Confidential VM / AWS Nitro Enclaveに対する 明確差別化軸・複数組織 (例: 4 Bank が AML (Anti-Money Laundering) 検査ためデータを共有・各Bank データは他Bank に見えない状態で集約計算) のような Use case で唯一無二Cloud Service。Confidential GKE Node はAzure Confidential AKS と同等機能だがGoogle Cloud customer (Google Workspace / Anthos / BigQuery等の existing GCP user) に Vendor lock-in lockedで便利。一方Region展開はAzure 60+ vs GCP 35+で限定的 (Edge data residency要件厳しい組織は注意)・Pricing $0.08-$5.0/hour は Azure $0.08-$6.0/hour とほぼ同等 (10-20%premium standard比)。
関連用語との違い
- vs Azure Confidential VM: GCPはConfidential Space (Multi-party) USP・AzureはMulti-TEE Architecture (CCA含)
- vs AWS Nitro Enclave: GCPはStandard TEE (SEV/SNP/TDX) Multi-TEE・AWS Nitroは独自Architecture
- vs Standard GCP VM: Confidential VMは+12-20% Premium・StandardはHypervisor信頼前提
よくある質問（FAQ）
Q1: Confidential Spaceとは具体的に？ A: GCP独自Multi-party Confidential Computing service・例: 4 Hospital が患者データを共有で疾病予測model training (各Hospital データは他Hospital に見えない・Result Model のみ共有) 実現可能・複数組織機密データ共有計算 use case で唯一無二の Cloud Service。Healthcare AI / Financial AML / Government Statistics で 価値高。
Q2: Confidential GKEとConfidential VMの違いは？ A: Confidential VM = Single VM Confidential境界・Confidential GKE = Kubernetes Cluster Worker Node 全部 Confidential VM化で Pod / Container 全部 Confidential境界内実行。Kubernetes Native workload を Confidential化したい場合 Confidential GKE 推奨。
Q3: AMD SEV-SNP vs Intel TDX どちらをGCPで選ぶ？ A: 2024年Q4現在: AMD SEV-SNP (N2D / C3D series) は GA + Production成熟 + 価格Affordable・Intel TDX (C3 series) はBeta + Sapphire Rapids Intel 7 nm Process性能優位・workload性能要件で選択。Compliance face差はほぼ無 (両方FedRAMP High対応)。
まとめ
GCP Confidential VM = 2024年Google Cloud GAのEnterprise Cloud Confidential Computing service。AMD SEV + SEV-SNP + Intel TDX 3 TEE対応 + Confidential Space (Multi-party MPC USP) + Confidential GKE + Confidential AI (H100 Preview) + Cloud KMS統合・$0.08-$5.0/hour・Healthcare/Finance/Government Compliance対応のAzure直接競合主軸Cloud Confidential Computing platform。