2. Terminology (术语)

以下术语由 JWS 规范 [JWS] 定义: "JSON Web Signature (JWS)", "Base64url Encoding", "Header Parameter", "JOSE Header", "JWS Payload", "JWS Protected Header", "JWS Signature", "JWS Signing Input", 和 "Unsecured JWS".

以下术语由 JWE 规范 [JWE] 定义: "JSON Web Encryption (JWE)", "Additional Authenticated Data (AAD)", "Authentication Tag", "Content Encryption Key (CEK)", "Direct Encryption", "Direct Key Agreement", "JWE Authentication Tag", "JWE Ciphertext", "JWE Encrypted Key", "JWE Initialization Vector", "JWE Protected Header", "Key Agreement with Key Wrapping", "Key Encryption", "Key Management Mode", 和 "Key Wrapping".

以下术语由 JWK 规范 [JWK] 定义: "JSON Web Key (JWK)" 和 "JWK Set".

以下术语由 "Internet Security Glossary, Version 2" [RFC4949] 定义: "Ciphertext", "Digital Signature", "Initialization Vector", "Message Authentication Code (MAC)", 和 "Plaintext".

本规范定义以下术语:

Base64urlUInt : 正整数或零值的表示, 作为该值的无符号大端表示 (big-endian representation) 的 base64url 编码的八位字节序列. 八位字节序列必须 (MUST) 使用表示该值所需的最小八位字节数. 零表示为 BASE64URL(单个零值八位字节), 即 "AA".