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We can modify our ZK credential to support a limit of N shows as follows. First, let’s have the User select a random key K for a pseudorandom function (PRF), which takes a key and an arbitrary input and outputs a random-looking outputs. We’ll embed this key K into the signed credential. (It’s important that the Issuer does not learn K, so this often requires that the credential be signed using a blind, or partially-blind, signing protocol.3) We’ll now use this key and PRF to generate unique serial numbers, each time we “show” the credential.
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Раскрыта новая задумка Трампа против Ирана14:57
对许多写书的人来说,这件事意味着的远不止一张支票。美国作家的年收入中位数约为 2 万美元,而市值数千亿的 AI 公司在未获授权的情况下大量使用他们的作品,事后折算的赔偿标准远低于法律上限。
In practice, (and yes, there are always exceptions to be found) BYOB is rarely used to any measurable benefit. The API is substantially more complex than default reads, requiring a separate reader type (ReadableStreamBYOBReader) and other specialized classes (e.g. ReadableStreamBYOBRequest), careful buffer lifecycle management, and understanding of ArrayBuffer detachment semantics. When you pass a buffer to a BYOB read, the buffer becomes detached — transferred to the stream — and you get back a different view over potentially different memory. This transfer-based model is error-prone and confusing: