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š§ Zama Series Part 3: Why Access Control is the Missing Piece in Web3Ā Privacy
š What is ACL in the Context ofĀ Zama?
ACL, or Access Control List, is the mechanism in Zama's FHEVM that determines:
Who can decrypt,
Who can compute on encrypted data, and
Under what conditions these rights are granted.
Think of it as setting rules for a highly secure vault. The data inside is encrypted, but you need to define who gets a key, for how long, and for what purpose.
š§© Why is ACL So Important?
Encrypted smart contracts are only useful if someone (or something) can interact with them. But without proper access control, you risk:
Making sensitive data accidentally public,
Giving unauthorized users access to decrypt or compute,
Or blocking legitimate actors from doing their part.
ACL solves this by offering:
Granular permissioningā-āPermanent or temporary access,
Gas-optimized access management,
And compatibility with familiar Solidity syntax.
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