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fuzz: check invoice signatures

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There may be bugs in signature validation, so we should fuzz that too.
This commit is contained in:
Matt Morehouse
2023-10-17 11:47:44 -05:00
committed by Rusty Russell
parent ee8cf69f28
commit 4b29502098
1 changed files with 3 additions and 11 deletions
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14
tests/fuzz/fuzz-bolt11.c
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@@ -18,11 +18,7 @@ size_t LLVMFuzzerMutate(uint8_t *data, size_t size, size_t max_size);
size_t LLVMFuzzerCustomMutator(uint8_t *fuzz_data, size_t size, size_t max_size,
unsigned int seed);
void init(int *argc, char ***argv)
{
chainparams = chainparams_for_network("bitcoin");
common_setup("fuzzer");
}
void init(int *argc, char ***argv) { common_setup("fuzzer"); }
// Encodes a dummy bolt11 invoice into `fuzz_data` and returns the size of the
// encoded string.
@@ -115,13 +111,9 @@ size_t LLVMFuzzerCustomMutator(uint8_t *fuzz_data, size_t size, size_t max_size,
void run(const uint8_t *data, size_t size)
{
char *invoice_str = to_string(tmpctx, data, size);
struct sha256 hash;
const u5 *sigdata;
bool have_n = false;
char *fail;
bolt11_decode_nosig(tmpctx, invoice_str, NULL, NULL, chainparams, &hash,
&sigdata, &have_n, &fail);
bolt11_decode(tmpctx, invoice_str, NULL, NULL, NULL, &fail);
clean_tmpctx();
}