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Obfuscation: Building the Final Boss of Cryptography

Vitalik Buterin explores obfuscation as a powerful cryptographic tool that could enable universal program secrecy, comparing it to a "final boss" of cryptography. He discusses its theoretical foundations, practical challenges, and potential applications like fully homomorphic encryption and secure software distribution.

Background

Vitalik Buterin is Ethereum's co-founder. Cryptographic obfuscation turns any program into a "black box" that computes correctly but hides its internals — the holy grail of crypto. If ever practical, it could replace almost every existing cryptographic tool (encryption, signatures, zero-knowledge proofs) with one universal primitive, enabling truly private smart contracts where neither code nor data is visible. Buterin is surveying whether recent breakthroughs have brought this once-theoretical idea closer to reality for blockchain use.

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Obfuscation: Building the Final Boss of Cryptography

Background

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