feat: Implement Agent Card Signing and Verification per Spec#581

Merged

sokoliva merged 14 commits intoa2aproject:mainfrom

sokoliva:agent-card-signature

Dec 12, 2025

Commits on Dec 5, 2025

Commits on Dec 8, 2025

refactor: add argument description to get_card method, improve readability of clean_empty by declaring types, add a multiple signatures test to test_signing.py
sokoliva
committed
Merge branch 'agent-card-signature' of https://github.com/sokoliva/a2a-python into agent-card-signature
sokoliva
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refactor: Pass the 'algorithms list' to 'jws.verify' to ensure only expected algorithms are used for signature validation.
sokoliva
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Fix: add an algorithms parameter to create_signature_verifier function to security measures.
sokoliva
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Fix: fix accidental error
sokoliva
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fix: add jku, jwk, jwks, jws and kid to allow.txt
sokoliva
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Commits on Dec 10, 2025

fix: replace `python-jose` library with `PyJWK`. Add `signature verification errors`. Add `class ProtectedHeader(TypedDict)` to `signing.py`.
sokoliva
committed