[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-07-25 (世界標準時間)。"],[[["\u003cp\u003eDeterministic Authenticated Encryption with Associated Data (AEAD) encrypts the same data into the same ciphertext, useful for key wrapping or searchable encryption but revealing repeated messages.\u003c/p\u003e\n"],["\u003cp\u003eIt offers secrecy (except for length and repetition), authenticity, symmetry, and determinism in encryption.\u003c/p\u003e\n"],["\u003cp\u003eWhile associated data is authenticated, it is not encrypted, allowing ciphertext binding to specific contexts like user IDs.\u003c/p\u003e\n"],["\u003cp\u003eThe recommended key type is AES256_SIV, providing strong security guarantees including 128-bit security level and the capacity to encrypt numerous messages safely.\u003c/p\u003e\n"],["\u003cp\u003eDeterministic AEAD is suitable for scenarios where deterministic encryption and context binding are prioritized, such as preventing unauthorized data transfer in databases.\u003c/p\u003e\n"]]],["Deterministic AEAD encrypts data deterministically, producing the same ciphertext for identical data. It offers secrecy (except for repeated plaintexts), authenticity, symmetry, and determinism. A key use is binding ciphertext to associated data for integrity. While offering strong security, repeated messages can reveal equality. Associated data is authenticated but not encrypted. The AES256_SIV key type is recommended, ensuring at least 80-bit authentication and 128-bit security against key recovery. It supports large messages and numerous encryptions.\n"],null,[]]
