Bastionchip Platform
Confidential Compute Silicon
TEE-enabling silicon block that provides hardware-isolated execution environments with cryptographic attestation — immune to hypervisor-level adversaries.
Isolation model
HW TEE
TEE Isolation Model
Execution isolation that survives hypervisor compromise
The Bastionchip confidential compute block enforces memory encryption and execution isolation at the silicon level. Workloads running in the TEE are protected against a compromised hypervisor, privileged OS, or firmware adversary. Attestation tokens chain from the silicon root of trust — no software layer can forge them.
Hardware Memory Encryption
Enclave memory is encrypted with per-enclave keys managed by the secure silicon block. Host DRAM is ciphertext outside the TEE.
Side-Channel Mitigations
Cache timing and power analysis mitigations hardened in RTL. ECDSA and AES implementations designed to eliminate key-observable side channels.
Attestation Protocol
Four-step attestation from silicon to workload
1
PUF Identity
Silicon PUF derives unique device key. No factory injection, no shared secrets.
2
Enclave Launch
Workload loaded into hardware-isolated TEE. Memory encrypted in silicon.
3
Token Generation
Hardware generates signed attestation report binding workload measurement to device identity.
4
Remote Verify
Verifier checks token against Bastionchip certificate chain. No trust in host software required.
Architecture Comparison
Hardware TEE vs. alternatives
| Capability | Bastionchip CC Silicon | Software TEE (e.g. SGX sw) | Off-chip Network HSM |
|---|---|---|---|
| Key isolation from hypervisor | Hardware enforced | Software boundary | Hardware enforced |
| Memory encryption | On-die | Host-CPU dependent | Not applicable |
| Attestation root | PUF silicon | CPU microcode | HSM hardware |
| Latency to workload | On-SoC (ns) | On-host (ns) | Network (>ms) |
| Side-channel hardening | RTL mitigations | Varies by CPU | Dedicated silicon |
| No factory key injection | PUF-only | Root CA dependent | Factory provisioned |
Evaluate confidential compute silicon
Integration support for cloud infrastructure and hypervisor teams. NDA-gated evaluation program.