core-lightning/tests/fuzz/fuzz-hsm_encryption.c
Rusty Russell 7401b26824 cleanup: remove unneeded includes in C files.
Before:
 Ten builds, laptop -j5, no ccache:

```
real	0m36.686000-38.956000(38.608+/-0.65)s
user	2m32.864000-42.253000(40.7545+/-2.7)s
sys	0m16.618000-18.316000(17.8531+/-0.48)s
```

 Ten builds, laptop -j5, ccache (warm):

```
real	0m8.212000-8.577000(8.39989+/-0.13)s
user	0m12.731000-13.212000(12.9751+/-0.17)s
sys	0m3.697000-3.902000(3.83722+/-0.064)s
```

After:
 Ten builds, laptop -j5, no ccache: 8% faster

```
real	0m33.802000-35.773000(35.468+/-0.54)s
user	2m19.073000-27.754000(26.2542+/-2.3)s
sys	0m15.784000-17.173000(16.7165+/-0.37)s
```

 Ten builds, laptop -j5, ccache (warm): 1% faster

```
real	0m8.200000-8.485000(8.30138+/-0.097)s
user	0m12.485000-13.100000(12.7344+/-0.19)s
sys	0m3.702000-3.889000(3.78787+/-0.056)s
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-09-17 09:43:22 +09:30

41 lines
1.2 KiB
C

#include "config.h"
#include <assert.h>
#include <tests/fuzz/libfuzz.h>
#include <ccan/mem/mem.h>
#include <common/hsm_encryption.h>
void init(int *argc, char ***argv)
{
}
void run(const uint8_t *data, size_t size)
{
/* 4294967295 is crypto_pwhash_argon2id_PASSWD_MAX. libfuzzer won't
* generate inputs that large in practice, but hey. */
if (size > 32 && size < 4294967295) {
struct secret *hsm_secret, decrypted_hsm_secret, encryption_key;
char *passphrase;
struct encrypted_hsm_secret encrypted_secret;
/* Take the first 32 bytes as the plaintext hsm_secret seed,
* and the remaining ones as the passphrase. */
hsm_secret = (struct secret *)tal_dup_arr(NULL, u8, data, 32, 0);
passphrase = to_string(NULL, data + 32, size - 32);
/* A valid seed, a valid passphrase. This should not fail. */
assert(!hsm_secret_encryption_key(passphrase, &encryption_key));
/* Roundtrip */
assert(encrypt_hsm_secret(&encryption_key, hsm_secret,
&encrypted_secret));
assert(decrypt_hsm_secret(&encryption_key, &encrypted_secret,
&decrypted_hsm_secret));
assert(memeq(hsm_secret->data, sizeof(hsm_secret->data),
decrypted_hsm_secret.data,
sizeof(decrypted_hsm_secret.data)));
tal_free(hsm_secret);
tal_free(passphrase);
}
}