Disallow importing public ECDH keys with non-empty usage #433
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Addresses the suggestion in #415 – the usage set is actually required to be empty when importing public ECDH keys. Since we currently allow derive* usages and used to allow usages in CryptoKeyUsageSet::publicKeyMask() for public spki and jwk, only log a warning for now. The TODO comment describes how to check for an empty set if this proves to not produce warnings.
Upstream PR is available