Damien Miller | ec9d22c | 2017-09-08 12:44:13 +1000 | [diff] [blame] | 1 | // cc_fuzz_target test for public key parsing. |
| 2 | |
| 3 | #include <stddef.h> |
| 4 | #include <stdio.h> |
| 5 | #include <stdint.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <string.h> |
| 8 | |
| 9 | extern "C" { |
| 10 | |
| 11 | #include "includes.h" |
| 12 | #include "sshkey.h" |
| 13 | #include "ssherr.h" |
| 14 | |
| 15 | static struct sshkey *generate_or_die(int type, unsigned bits) { |
| 16 | int r; |
| 17 | struct sshkey *ret; |
| 18 | if ((r = sshkey_generate(type, bits, &ret)) != 0) { |
| 19 | fprintf(stderr, "generate(%d, %u): %s", type, bits, ssh_err(r)); |
| 20 | abort(); |
| 21 | } |
| 22 | return ret; |
| 23 | } |
| 24 | |
| 25 | int LLVMFuzzerTestOneInput(const uint8_t* sig, size_t slen) |
| 26 | { |
| 27 | #ifdef WITH_OPENSSL |
| 28 | static struct sshkey *rsa = generate_or_die(KEY_RSA, 2048); |
| 29 | static struct sshkey *dsa = generate_or_die(KEY_DSA, 1024); |
| 30 | static struct sshkey *ecdsa256 = generate_or_die(KEY_ECDSA, 256); |
| 31 | static struct sshkey *ecdsa384 = generate_or_die(KEY_ECDSA, 384); |
| 32 | static struct sshkey *ecdsa521 = generate_or_die(KEY_ECDSA, 521); |
| 33 | #endif |
Damien Miller | 9281d43 | 2019-11-25 21:47:49 +1100 | [diff] [blame^] | 34 | struct sshkey_sig_details *details = NULL; |
Damien Miller | ec9d22c | 2017-09-08 12:44:13 +1000 | [diff] [blame] | 35 | static struct sshkey *ed25519 = generate_or_die(KEY_ED25519, 0); |
| 36 | static const char *data = "If everyone started announcing his nose had " |
| 37 | "run away, I don’t know how it would all end"; |
| 38 | static const size_t dlen = strlen(data); |
| 39 | |
| 40 | #ifdef WITH_OPENSSL |
Damien Miller | 9281d43 | 2019-11-25 21:47:49 +1100 | [diff] [blame^] | 41 | sshkey_verify(rsa, sig, slen, (const u_char *)data, dlen, NULL, 0, &details); |
| 42 | sshkey_sig_details_free(details); |
| 43 | details = NULL; |
| 44 | sshkey_verify(dsa, sig, slen, (const u_char *)data, dlen, NULL, 0, &details); |
| 45 | sshkey_sig_details_free(details); |
| 46 | details = NULL; |
| 47 | sshkey_verify(ecdsa256, sig, slen, (const u_char *)data, dlen, NULL, 0, &details); |
| 48 | sshkey_sig_details_free(details); |
| 49 | details = NULL; |
| 50 | sshkey_verify(ecdsa384, sig, slen, (const u_char *)data, dlen, NULL, 0, &details); |
| 51 | sshkey_sig_details_free(details); |
| 52 | details = NULL; |
| 53 | sshkey_verify(ecdsa521, sig, slen, (const u_char *)data, dlen, NULL, 0, &details); |
| 54 | sshkey_sig_details_free(details); |
| 55 | details = NULL; |
Damien Miller | ec9d22c | 2017-09-08 12:44:13 +1000 | [diff] [blame] | 56 | #endif |
Damien Miller | 9281d43 | 2019-11-25 21:47:49 +1100 | [diff] [blame^] | 57 | sshkey_verify(ed25519, sig, slen, (const u_char *)data, dlen, NULL, 0, &details); |
| 58 | sshkey_sig_details_free(details); |
Damien Miller | ec9d22c | 2017-09-08 12:44:13 +1000 | [diff] [blame] | 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | } // extern |