JSON Web Algorithms
lastmod 2026-11-10created 2026-09-103 edits
JSON Web Algorithms (JWA) is a specification (RFC 7518) that defines the cryptographic algorithms and identifiers used by JSON Web Signature (JWS), JSON Web Encryption (JWE), and JSON Web Key (JWK). It enumerates signature algorithms such as HS256, RS256, and ES256, key encryption and content encryption algorithms, and parameters for each key type, and the alg and enc values in a JWT header use the names defined here. It serves as the algorithm dictionary of the JOSE family of specifications.