<PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.21.0" />

Microsoft.IdentityModel.Tokens.TransformBeforeSignatureValidation

public sealed delegate TransformBeforeSignatureValidation : MulticastDelegate
Transforms the security token before signature validation.
public TransformBeforeSignatureValidation(object object, IntPtr method)

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

public virtual SecurityToken EndInvoke(IAsyncResult result)

public virtual SecurityToken Invoke(SecurityToken token, TokenValidationParameters validationParameters)