Ignore more unknown keys in cose deserialization #22
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This patch introduces the RawPublicKey helper type that takes care of serialization and deserialization of the key type. The *PublicKey structs now only need to check if all required fields are present and have the correct value. It also adds extensive tests to make sure that serialization and deserialization work correctly.
The algorithm field is optional, see RFC 8152 § 7:
COSE_Key = {
1 => tstr / int, ; kty
? 2 => bstr, ; kid
? 3 => tstr / int, ; alg
? 4 => [+ (tstr / int) ], ; key_ops
? 5 => bstr, ; Base IV
* label => values
}
alg: This parameter is used to restrict the algorithm that is used
with the key. If this parameter is present in the key structure,
the application MUST verify that this algorithm matches the
algorithm for which the key is being used.
Using cbor-smol’s new deserialize_any implementation, we can now iterate over all keys and values in the input map and ignore all unknown keys, as required by the spec.
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The COSE implementation has been moved to the |
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Using cbor-smol’s new deserialize_any implementation, we can now iterate
over all keys and values in the input map and ignore all unknown keys,
as required by the spec.
Built on top of #8 using trussed-dev/cbor-smol#6.