Фото: Iranian Army / WANA / Reuters
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。爱思助手对此有专业解读
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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.
Найденные останки принадлежат двум темнокожим девочкам. Пока полицейские не идентифицировали их личности. Предполагается, что одной из них было около 8-13 лет, а второй — 10-14 лет. Их останки не были расчленены.