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@ -33,6 +33,19 @@ If you find an interesting or important question missing, submit it via
Report](https://www.fuzzbench.com/reports/2020-08-03/index.html). Report](https://www.fuzzbench.com/reports/2020-08-03/index.html).
</p></details> </p></details>
<details>
<summary id="is-afl-a-whitebox-graybox-or-blackbox-fuzzer">Is AFL++ a whitebox, graybox, or blackbox fuzzer?</summary><p>
The definition of the terms whitebox, graybox, and blackbox fuzzing varies
from one source to another. For example, "graybox fuzzing" could mean
binary-only or source code fuzzing, or something completely different.
Therefore, we try to avoid them.
[The Fuzzing Book](https://www.fuzzingbook.org/html/GreyboxFuzzer.html#AFL:-An-Effective-Greybox-Fuzzer)
describes the original AFL to be a graybox fuzzer. In that sense, AFL++ is
also a graybox fuzzer.
</p></details>
<details> <details>
<summary id="where-can-i-find-tutorials">Where can I find tutorials?</summary><p> <summary id="where-can-i-find-tutorials">Where can I find tutorials?</summary><p>
@ -126,6 +139,16 @@ If you find an interesting or important question missing, submit it via
## Performance ## Performance
<details>
<summary id="what-makes-a-good-performance">What makes a good performance?</summary><p>
Good performance generally means "making the fuzzing results better". This can
be influenced by various factors, for example, speed (finding lots of paths
quickly) or thoroughness (working with decreased speed, but finding better
mutations).
</p></details>
<details> <details>
<summary id="how-can-i-improve-the-fuzzing-speed">How can I improve the fuzzing speed?</summary><p> <summary id="how-can-i-improve-the-fuzzing-speed">How can I improve the fuzzing speed?</summary><p>
@ -146,8 +169,8 @@ If you find an interesting or important question missing, submit it via
the edge coverage result will be different across runs. Those edges that the edge coverage result will be different across runs. Those edges that
change are then flagged "unstable". change are then flagged "unstable".
The more "unstable" edges, the more difficult for AFL++ to identify valid new The more "unstable" edges there are, the harder it is for AFL++ to identify
paths. valid new paths.
A value above 90% is usually fine and a value above 80% is also still ok, and A value above 90% is usually fine and a value above 80% is also still ok, and
even a value above 20% can still result in successful finds of bugs. However, even a value above 20% can still result in successful finds of bugs. However,