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feat: Support resolving JWA from crv parameter in JWK #24

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Merged
anakinj merged 1 commit into from
Jun 28, 2025
Merged

feat: Support resolving JWA from crv parameter in JWK #24

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6 changes: 6 additions & 0 deletions lib/jwt/eddsa/jwk/okp.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,12 @@ def export(options = {})
exported
end

def jwa
return super if self[:alg]

JWA.resolve("EdDSA") if self[:crv] == "Ed25519"
end

private

def extract_key_params(key) # rubocop:disable Metrics/MethodLength
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13 changes: 13 additions & 0 deletions spec/integration_spec.rb
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Expand Up @@ -69,4 +69,17 @@
expect(payload).to eq(token_payload)
end
end

describe "JWK as key" do
let(:jwk) { JWT::JWK.new(Ed25519::SigningKey.new(SecureRandom.hex)) }

it "signs and verifies using the jwk" do
token = JWT::Token.new(payload: {}, header: {})

token.sign!(algorithm: "EdDSA", key: jwk)

encoded_token = JWT::EncodedToken.new(token.jwt)
encoded_token.verify!(signature: { algorithm: %w[HS256 EdDSA], key: jwk })
end
end
end