Anto•nad 💅 (antonad)

What is Zama? Zama is a protocol that enables confidential smart contracts to be deployed on any existing Layer 1 or Layer 2 blockchain. It acts as a computation layer that allows developers to build decentralized applications (dApps) with full data confidentiality. The inputs, outputs, and internal states of these smart contracts remain encrypted throughout their lifecycle. Rather than building a standalone L1, Zama provides the tooling and infrastructure to integrate confidentiality into the blockchains we already use. This is done through cryptographic primitives and FHE compilers that allow encrypted operations to be offloaded, computed, and verified securely.

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What is Fully Homomorphic Encryption? Fully Homomorphic Encryption (FHE) is a cryptographic technique that allows arbitrary computation on encrypted data. This means you can take an encrypted input, apply a function to it, and produce an encrypted output that, when decrypted, matches the result of the function applied to the original plaintext. For example: Let E() be an encryption function and f() a function like addition or multiplication. Then, f(E(a), E(b)) = E(f(a, b)) FHE has been known in theory for decades but only recently became practical, thanks to advances in algorithms and performance optimizations. Zama has contributed to this progress by building open-source FHE libraries like Concrete, written in Rust, and optimized for both CPUs and GPUs.

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