Together, TEEs and Polkadot provide a compelling confidential computing solution. Finally, bridges allow parachains to connect externally to other major blockchain networks, such as Ethereum or Bitcoin, for example. Parachains are heterogeneous blockchain shards that can be optimized for specific use cases. The main Relay Chain provides pooled security and interoperability for all participants. Polkadot consists of the main Relay Chain, parachains and bridges. Integritee proposes building a parachain on Polkadot that will maintain a registry of valid TEEs and allow users to connect with one securely, without the need to register with the device manufacturer for attestation services. This provides the user with assurance that they are connected to a genuine TEE. The manufacturer of the TEE hardware allows remote attestation using a digital signature. Data can be stored and processed within a TEE according to predetermined rules, without the underlying dataset ever being exposed. The Integritee solution will combine TEEs with second-layer sidechains on a Polkadot parachain to create an interoperable, scalable and decentralized platform for processing sensitive data.Ī TEE is a locked, isolated hardware component that not even the system administrator can access. Trusted execution environments (TEEs), which provide a hardware-based method of preserving privacy, currently provide the best balance of security and usability for a wide range of applications. Similarly, many of the privacy-preserving technologies currently on the market - such as multiparty computation, homomorphic encryption and differential privacy - have major limitations in terms of practical application. But most current blockchain solutions cannot provide confidentiality, and scaling up is a big problem as it usually reduces transaction speeds. Cybercrime is predicted to inflict damages totaling $6 trillion globally in 2021, with attackers going after the vast honeypots of data that have been created by centralized data services pervasive in the tech industry.īlockchains can offer some protection against this vulnerability, by decentralizing computation and thereby providing no single point of attack. BackgroundĪs set out in the lightpaper, the fundamental goal of Integritee is to make it far easier for firms to create data-driven services that protect user data and foster consumer trust. This paves the way for a new era in which potentially sensitive data can be leveraged without compromising confidentiality. Our unique network design combines the privacy of TEEs with the scalability of second-layer sidechains. The Integritee lightpaper, now available to download, provides a concise, yet comprehensive overview of the project’s goals. Our lightpaper explains how we cracked the problem. While this is often cited as one of the technology’s key advantages, it can be a weakness too, ruling it out for applications involving confidential data. Ever since the advent of blockchain, its transparency has been a double-edged sword.
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