Reverse Engineering challenge #47.

Tags: X86 L3 LINUX MACOSX EXEC X64 WINDOWS .

It's a well known data compression algorithm. However, due to a mistake (or typo) in the (closed) source code, it decompresses incorrectly. Here we can see this bug in these examples.

This is a text used as a source: files/test.txt.

This is the text compressed correctly: files/test.compressed.

This is the incorrectly uncompressed text: files/test.uncompressed_incorrectly.

Try to find and fix the bug. With some effort, it can be done even by patching the binary.

More challenges: challenges.re; about solutions: challenges.re/#Solutions.