Fuzzing dictionary # A dictionary can be used to guide the fuzzer. A dictionary is usually passed as a file to the fuzzer. The simplest input accepted by libFuzzer is a ASCII text file where each line consists of a quoted string. Strings can contain escaped byte sequences like “\xF7\xF8". Optionally, a key-value pair like hex_value="\xF7\xF8" can be used for documentation purposes. Comments are supported by starting a line with #.