ARM TrustZone vs Zama Protocol: Side-by-Side Comparison (2026)

ARM TrustZone: ARM TrustZone provides a secure execution environment for applications on ARM processors..

Zama Protocol: Confidential blockchain protocol using FHE for encrypted smart contracts. built by Zama. Core capabilities include Fully Homomorphic Encryption for blockchain data, Confidential smart contracts on any L1 or L2, Solidity-based development with euint data types..

Both serve the Confidential Computing market but differ in approach, feature depth, and target audience.

ARM TrustZone is open-source with 977 GitHub stars. Zama Protocol is developed by Zama. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

ARM TrustZone and Zama Protocol serve similar Confidential Computing use cases: both are Confidential Computing tools. Key differences: ARM TrustZone is Free while Zama Protocol is Commercial, ARM TrustZone is open-source. Review the feature comparison above to determine which fits your requirements.