[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2025-07-25 UTC"],[[["\u003cp\u003eTink's PRF primitive provides stable, pseudo-random outputs for given inputs, enabling deterministic redaction and keyed hashing functionalities.\u003c/p\u003e\n"],["\u003cp\u003ePRFs in Tink are indexed by key IDs within keysets, allowing for key rotation without association loss.\u003c/p\u003e\n"],["\u003cp\u003eWhile offering strong security, PRFs are deterministic and do not guarantee anonymity, only pseudonymity, requiring careful application in privacy-sensitive systems.\u003c/p\u003e\n"],["\u003cp\u003eTink supports various PRF key types, with HMAC_SHA256_PRF recommended for most use cases and AES_CMAC_PRF potentially offering the best performance on hardware with AES-NI acceleration.\u003c/p\u003e\n"],["\u003cp\u003ePRFs provide a minimum of 128-bit security, even in multi-user environments with large key sets, and can generate at least 16 bytes of output.\u003c/p\u003e\n"]]],["Pseudo-Random Function (PRF) produces stable, pseudo-random outputs for a given input, managed via keysets indexed by a 32-bit key ID for rotation. Key properties include deterministic output and randomness. `HMAC_SHA256_PRF` is recommended, with alternatives like `HMAC_SHA512_PRF` and `AES_CMAC_PRF`. PRF provides pseudonymity, not anonymity, and is secure with at least 128-bit security. Use cases include deterministic PII redaction and creating non-joinable sub-IDs. MAC is recommended for proving authenticity.\n"],null,[]]
