class testClass(TemplateView):
template_name = 'cryptator/decrypt_test.html'

def get_context_data(self, **kwargs):
    context = super(testClass, self).get_context_data(**kwargs)
    public_read = Public_keys.objects.all().filter(owner="Merkantil")
    pwdencsign = Attachment.objects.values_list('file', flat=True).filter(file__endswith=".pwdencsign")
    pwdenc = Attachment.objects.values_list('file', flat=True).filter(file__endswith=".pwdenc")
    enc = Attachment.objects.values_list('file', flat=True).filter(file__endswith=".enc")
    pubtest = public_read[0]
    pwdenc_r = pwdenc[0]
    pwdencsign_r = pwdencsign[0]
    file_pwdenc = "/opt/cryptator/media/%s" % (pwdenc_r)
    file_pwdencsign = "/opt/cryptator/media/%s" % (pwdencsign_r)
    with open(file_pwdenc) as f:
        string_pwdenc = f.read()
    with open(file_pwdencsign) as fs:
        string_pwdencsign = fs.read()
    verify = crypto.verify(pubtest, string_pwdencsign, string_pwdenc, 'sha256')

    context['verify'] = verify
    return context