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An oblivious pseudorandom function (OPRF) is a cryptographic function, similar to a keyed-hash function, but with the distinction that in an OPRF two parties cooperate to securely compute a pseudorandom function (PRF).
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password oprf party client server secret output key second used function pseudorandom input result compute oblivious first example security oprfs
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| instance of | mechanisms for running CAPTCHA tests have been centralized to services | 0.80 | text | |
| CloudFlare | instance of | mechanisms for running CAPTCHA tests have been centralized to services | 0.80 | text |
| but this can come at the expense of user privacy.Recently | instance of | mechanisms for running CAPTCHA tests have been centralized to services | 0.80 | text |
| CloudFlare developed a privacy-preserving technology called | instance of | mechanisms for running CAPTCHA tests have been centralized to services | 0.80 | text |
| Oblivious pseudorandom function | related to history | While | 0.60 | section |
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