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fixes #2121: explain the utf16-le / utf16-be limitation in docs/limits.txt

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philsmd 2020-01-03 11:41:10 +01:00 committed by GitHub
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docs/limits.txt
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@ -22,6 +22,17 @@ Important: That does not mean UTF-16 file content, which is fully supported.
It only means the filename itself.
##
## Hashing algorithms that internally use UTF-16 characters could in special cases lead to false negatives
##
The UTF-16 conversion implementation used within the kernel code is very elementary and for performance
reasons does not respect all complicated encoding rules required to correctly convert, for instance, ASCII
or UTF-8 to UTF-16LE (or UTF-16BE).
The implementation most likely fails with multi-byte characters, because we basically add a zero byte every
second byte within the kernel conversion code.
##
## The use of --keep-guessing eventually skips reporting duplicate passwords
##