private static void TamperSignature(string packageFilePath)
{
var packageSignature = ReadPackageSignature(packageFilePath);
var randomBytes = new byte[packageSignature.Length];
using (var rng = RandomNumberGenerator.Create())
{
rng.GetBytes(randomBytes);
}
var fileBytes = File.ReadAllBytes(packageFilePath);
var newFileBytes = SignedArchiveTestUtility.FindAndReplaceSequence(
fileBytes,
packageSignature,
randomBytes);
File.WriteAllBytes(packageFilePath, newFileBytes);
}