<PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.18.0" />

Microsoft.IdentityModel.Tokens.SignatureValidator

public sealed delegate SignatureValidator : MulticastDelegate
Validates the signature of the security token.
public SignatureValidator(object object, IntPtr method)

public virtual IAsyncResult BeginInvoke(string token, TokenValidationParameters validationParameters, AsyncCallback callback, object object)

public virtual SecurityToken EndInvoke(IAsyncResult result)

public virtual SecurityToken Invoke(string token, TokenValidationParameters validationParameters)