namespace System.Security.Cryptography { internal static class KeySizeHelpers { public static KeySizes[] CloneKeySizesArray(this KeySizes[] src); public static bool IsLegalSize(this int size, KeySizes legalSizes); public static bool IsLegalSize(this int size, KeySizes[] legalSizes); public static bool IsLegalSize(this int size, KeySizes legalSizes, out bool validatedByZeroSkipSizeKeySizes); public static bool IsLegalSize(this int size, KeySizes[] legalSizes, out bool validatedByZeroSkipSizeKeySizes); } }