Some members are not available on .NET Full Fw >= 4.7 although they should

[ulrichb]

Some members like DotNetUtilities.GetECKeyPair() are not available on a consuming project with e.g. .NET Full Fw 4.8.

The reason is that,

a) we do if NETCOREAPP1_0_OR_GREATER || NET47_OR_GREATER || NETSTANDARD1_6_OR_GREATER conditional compilation (see e.g. https://github.com/bcgit/bc-csharp/blob/release/v2.2/crypto/src/security/DotNetUtilities.cs#L87-L88),

and b) the target frameworks of BouncyCastle.Cryptography are net6.0;netstandard2.0;net461.

=> In a consuming project with e.g. .NET 4.8 the net461 target framework of BouncyCastle.Cryptography is resolved, which does not include the NET47_OR_GREATER members. (Note that the net461 version and not the netstandard2.0 version is resolved on e.g. .NET 4.8.)

The solution should be simple: Add a net47 (or maybe simply replace net461, as .NET 4.6.1 is out of support since Apr '22).