diff options
| author | Jay Berkenbilt <ejb@ql.org> | 2018-01-14 16:17:17 +0100 |
|---|---|---|
| committer | Jay Berkenbilt <ejb@ql.org> | 2018-01-14 16:21:05 +0100 |
| commit | 569d74d36ba287b6951687ee1bdea45ae19091f8 (patch) | |
| tree | 2a8e05610e45ddc16f86bd06eae926fa12087f44 /libqpdf/QPDF_encryption.cc | |
| parent | 3e306ae64cc3d160034f27d72ad27bee03a65aa5 (diff) | |
| download | qpdf-569d74d36ba287b6951687ee1bdea45ae19091f8.tar.zst | |
Allow raw encryption key to be specified
Add options to enable the raw encryption key to be directly shown or
specified. Thanks to Didier Stevens <didier.stevens@gmail.com> for the
idea and contribution of one implementation of this idea.
Diffstat (limited to 'libqpdf/QPDF_encryption.cc')
| -rw-r--r-- | libqpdf/QPDF_encryption.cc | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/libqpdf/QPDF_encryption.cc b/libqpdf/QPDF_encryption.cc index a2445b61..fd717c35 100644 --- a/libqpdf/QPDF_encryption.cc +++ b/libqpdf/QPDF_encryption.cc @@ -1007,8 +1007,12 @@ QPDF::initializeEncryption() EncryptionData data(V, R, Length / 8, P, O, U, OE, UE, Perms, id1, this->m->encrypt_metadata); - if (check_owner_password( - this->m->user_password, this->m->provided_password, data)) + if (this->m->provided_password_is_hex_key) + { + // ignore passwords in file + } + else if (check_owner_password( + this->m->user_password, this->m->provided_password, data)) { // password supplied was owner password; user_password has // been initialized for V < 5 @@ -1023,7 +1027,11 @@ QPDF::initializeEncryption() "", 0, "invalid password"); } - if (V < 5) + if (this->m->provided_password_is_hex_key) + { + this->m->encryption_key = QUtil::hex_decode(this->m->provided_password); + } + else if (V < 5) { // For V < 5, the user password is encrypted with the owner // password, and the user password is always used for |