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| -rw-r--r-- | TODO | 16 |
1 files changed, 13 insertions, 3 deletions
@@ -190,9 +190,19 @@ I find it useful to make reference to them in this list came from Adobe's example site. * Consider the possibility of doing something locale-aware to support - non-ASCII passwords. Update documentation if this is done. - Consider implementing full Unicode password algorithms from newer - encryption formats. + non-ASCII passwords. Update documentation if this is done. Consider + implementing full Unicode password algorithms from newer encryption + formats. See ../misc/unicode-password*. If code is added to + properly encode Unicode passwords, figure out how to deal with + backward compatibility. Either require some additional flag to + decode the password or provide a `--raw-password` flag to suppress + decoding. While automatically encoding breaks backward + compatibility, it's probably the right behavior because the current + behavior is arguably a bug. Alternatively, if the password doesn't + work as a raw password and contains characters outside US-ASCII, + try various encoding methods to see if any work. See section + 7.6.3.3, algorithms 2 and 2A, in the ISO spec for details. (This is + tracked in https://github.com/qpdf/qpdf/issues/215.) * See if we can avoid preserving unreferenced objects in object streams even when preserving the object streams. |