IDX10690

IDX10690: ECDsa creation is not supported by NETSTANDARD1_4, when running on platforms other than Windows.

In the case of Wilson 5.x, this exception message can be generated when constructing an 'AsymmetricSignatureProvider', using 'JsonWebKey' with the key type set to EllipticCurve ("EC"), and when targeting netstandard-1.4 and running on platforms other than Windows.

Since netstandard1.4 was removed from Wilson 6.x, in theory, this exception message should never be reached.

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'ECParameters' struct is not supported by netstandard-1.4 and hence it's not possible to import elliptic curve parameters.

Solution: For 5.x users, reference IdentityModel's netstandard-2.0 target in your project.