Signature Algorithms

The basic parameters for a JOSE::JWS header are:

• "alg" (required) - Cryptographic Algorithm used to secure the JWS.

See RFC 7515 for more information about other header parameters.

alg Header Parameter

Here are the supported options for the alg parameter, grouped by similar funcionality:

• Elliptic Curve Digital Signature Algorithm (ECDSA)
  • ES256
  • ES384
  • ES512
• Edwards-curve Digital Signature Algorithm (EdDSA)
  • Ed25519
  • Ed25519ph
  • Ed448
  • Ed448ph
  • EdDSA
• HMAC using SHA-2
  • HS256
  • HS384
  • HS512
• RSASSA PSS using SHA-2 and MGF1 with SHA-2
  • PS256
  • PS384
  • PS512
• RSASSA PKCS#1.5 using SHA-2
  • RS256
  • RS384
  • RS512