diff options
Diffstat (limited to 'libqpdf/QPDFJob.cc')
| -rw-r--r-- | libqpdf/QPDFJob.cc | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/libqpdf/QPDFJob.cc b/libqpdf/QPDFJob.cc index 4d136223..2459394f 100644 --- a/libqpdf/QPDFJob.cc +++ b/libqpdf/QPDFJob.cc @@ -2812,18 +2812,17 @@ QPDFJob::setEncryptionOptions(QPDF& pdf, QPDFWriter& w) maybeFixWritePassword(R, m->owner_password); if ((R < 4) || ((R == 4) && (!m->use_aes))) { if (!m->allow_weak_crypto) { - // Do not set warnings = true for this case as this does - // not reflect a potential problem with the input file. - QTC::TC("qpdf", "QPDFJob weak crypto warning"); + QTC::TC("qpdf", "QPDFJob weak crypto error"); *(this->m->cerr) << this->m->message_prefix - << ": writing a file with RC4, a weak cryptographic algorithm" + << ": refusing to write a file with RC4, a weak cryptographic algorithm" << std::endl << "Please use 256-bit keys for better security." << std::endl - << "Pass --allow-weak-crypto to suppress this warning." + << "Pass --allow-weak-crypto to enable writing insecure files." << std::endl - << "This will become an error in a future version of qpdf." + << "See also https://qpdf.readthedocs.io/en/stable/weak-crypto.html" << std::endl; + throw std::runtime_error("refusing to write a file with weak crypto"); } } switch (R) { |