Keeps help contracts harness the full power of the public blockchain - enabling deep interactivity with private data.
Keeps allow contracts to access stored private data that can be bought, sold, transferred, and revealed on the public blockchain, enabling interactivity with far more private data than any other solution available today. Bitcoin gave you currency. Monero gave you private currency. Ethereum gave you Smart Contracts. Keep gives you private Smart Contracts. Built for every situation in which a smart contract interfaces with sensitive data.
Keeps are bringing private storage to the public Ethereum blockchain. The key innovation are keeps- extensions to the Ethereum blockchain that enable a new kind of dApp. Using keeps, Ethereum contracts can manipulate off-chain, private data securely, without risk from a third party. Keeps allow contracts to refer to securely store data off-chain, refer to it, and grant and revoke access. This access to private data paves the way for new blockchain use cases that can impact the world of finance, healthcare, and business among many others. Keep enables a new wave of ground-up innovation in the blockchain space, and a new generation of blockchain developers.
Public blockchains have brought unprecedented transparency and auditability with records that are immutable, reliable, and censorshipresistant. However, any smart contract published to the blockchain can be easily accessed by competing interests. When companies consider building applications on the blockchain, privacy is one of the primary issues that arise. Basic use cases of smart contracts are extremely limited by this lack of privacy. Functions like verifying real-world identity only to intended parties or sharing secure information after specific conditions have been met are nearly impossible without publishing this confidential information to the public blockchain.
By creating a bridge between the public blockchain and private data, contracts can harness the full power of blockchain technology, without compromising on reliability or transparency. Keep is that privacy layer. We use keeps, or private enclaves, to securely encrypt and store private data. Off-chain keeps will be protected using secure multiparty computation (sMPC), generating, securing, storing, encrypting and transmitting data across many individuals. Keep provides the first production-ready sMPC system for distribution on the public Ethereum blockchain. With this system, each individual is given access to a small portion of a secret which is encrypted. To gain or share access to that secret, the outputs are reported back from all the individuals and decrypted to reveal the secret.
Keep is Ethereum’s first private computer, able to store and compute data hidden even from itself. This unique approach allows for the safe transfer of information from one party to another on the public blockchain without each individual needing to be online, providing a superior solution to current hashreveal solutions, private blockchains, and zero-knowledge proofs alone.
Acting as a digital notary, contracts will be able to assert their identity off-chain without requiring a third party confirmation of blockchain state. Integrating with tools like PGP, SSH, and TLS keep is a bridge to public private key infrastructure.
Ethereum smart contracts can use keeps to generate their own cryptocurrency wallets to send Bitcoin, Litecoin, and Dash. Boom, crosschain exchange.
Dead Man Switch
Knowing when to expose private information is just as important as keeping it hidden. With keeps you can have trusts, estate plans, and other contracts automatically activated to expose instructions and transfer funds.
Marketplaces for Digital Goods
With keeps, you can easily and securely sell digital goods like ebooks, videos, MP3’s and more by keeping files private until payment is verified. There’s no need for a server and custom download processor to manage these files.
Encrypted Blockchain Storage
Keeps provide a bridge to private blockchain storage making it possible for smart contracts and DAO’s to store files privately. You no longer need to trust a third party with your most sensitive, private data. Think medical records, credit reports, and private financial data.
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