Enterprise-grade key management built for scale
Trusted Execution Environments
All key operations run inside AWS Nitro Enclaves — hardware-isolated environments where even 0xKey staff cannot access your private keys.
End-to-end Encryption
Keys are encrypted at generation and only decrypted inside TEEs. Raw private keys never touch unprotected memory.
Cryptographic Verifiability
Every enclave produces a cryptographic attestation you can verify independently — no blind trust required.
Access Control
Fine-grained policies control who can use which keys, for what operations, under what conditions.
Arbitrary Signing
Support any blockchain or signing algorithm — EVM, Solana, Bitcoin, Cosmos, and beyond.
High Performance
50ms signing latency, 99.9% uptime. 50-100x faster than MPC alternatives for production-grade scale.
Architecture
How 0xKey secures your keys
Key Generation
Private keys are generated inside a TEE using cryptographically secure random number generation. The raw key never leaves the enclave.
Encrypted Storage
Keys are encrypted with a master key sealed to the TEE hardware, then stored in encrypted form. Decryption requires running inside the same enclave.
Policy Evaluation
Before any signing operation, the policy engine evaluates the request against your configured rules — who, what, when, and how much.
Signing
If the policy passes, signing occurs inside the TEE. The signature is returned; the private key stays in the enclave.
Why TEE?
0xKey vs MPC vs HSM
Why Trusted Execution Environments outperform the alternatives for verifiable, high-performance key management.
| Property | 0xKey (TEE) | MPC | HSM |
|---|---|---|---|
| Signing latency | ~50ms | 500ms–2s | 10–100ms |
| Cryptographic verifiability | ✓ Hardware attestation | ✗ Trust-based | Partial |
| Non-custodial by design | ✓ Structural | Partial | ✗ |
| Multi-party attack resistance | ✓ Enclave isolation | ✓ Key shares | Partial |
| Chain-agnostic signing | ✓ Any curve | Varies | Limited |
| Open source verifiable code | ✓ Reproducible builds | ✗ | ✗ |
| Horizontal scalability | ✓ | ✗ Complex | Expensive |