HOW HELA ENABLES PRIVACY PROTECTION AND PROVIDES FLEXIBILITY AND AUDITABILITY
Hela leverages a Trusted Execution Environment (TEE)and cryptography (e.g., asymmetric and symmetric encryption, key exchange algorithm, secret sharing) to provide confidentiality.
WHAT IS A TRUSTED EXECUTION ENVIRONMENT (TEE)
A TEE is a hardware component providing a secure area of a main processor that guarantees code and data loaded into the TEE is protected with respect to confidentiality and integrity. It provides a shielded execution space, separate from the rest of the device, where applications can run securely
even if the wider system is compromised.
This is achieved by ensuring that the code and data residing inside the TEE are inaccessible to other software running on the same device, including the operating system.
Additionally, the TEE remains isolated from the ’hypervisor’—a software layer that allows multiple operating systems to run on a single physical machine by virtualizing the hardware resources.
HELA ON PRIVACY PROTECTION
For privacy protection, TEE has certain advantages over zero-knowledge proofs (ZKP). ZKPs are cryptographic methods which allow one party to prove to another that a given statement is true, without conveying any additional information.
ZKPs are also potent tools for privacy protection,
they can be computationally expensive and complex to implement, often requiring significant resources and time. On the other hand, TEEs, by their design, offer a more streamlined and efficient solution
NOTE :TEEs can process large amounts of
data quickly and securely, providing real-time data protection. They do not require heavy computational resources, and are thus more cost-effective and scalable.In addition, TEEs offer a versatile solution, as they can handle various types of data and different forms of computations, while ZKPs may require specific constructions for different types of computations.
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