A walk through of capability-access control, part of the Flow blockchain, which facilitates selective access to resources, decentralizing large attack vectors.
Flow is a permissionless layer-1 blockchain built to support the high-scale use cases of games, virtual worlds, and the digital assets that power them. The blockchain was created by the team behind Cryptokitties, Dapper Labs, and NBA Top Shot. One core attribute that differentiates flow from the other blockchains is its usage of capability-based access control.
There are two major types of capabilities in Flow blockchain: Public capabilities Public capabilities are created using public paths and hence have the domain “public”. After creation, users can access them with authorized accounts and public accounts . Private capabilities Private capabilities are created using private paths and hence have the domain “private”. After creation, they can only be accessed by authorized accounts and not by public accounts .
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