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| author | Rich Salz <rsalz@openssl.org> | 2017-07-26 14:27:30 -0400 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2017-07-26 19:27:54 -0400 |
| commit | 9f08a1c63efa2205aca4361a830ac04407325597 (patch) | |
| tree | a3ab9a036edf961cb6b09e5ed7f82919e6b456d5 /fuzz/asn1.c | |
| parent | 43405889f47648ee70c1b412b8b71570e8aaa24a (diff) | |
| download | openssl-new-9f08a1c63efa2205aca4361a830ac04407325597.tar.gz | |
Install custom RAND_METHOD for fuzzing
Instead of setting a "magic" global variable to force RAND to keep
consistent state and always generate the same bytestream, have
the fuzzing code install its own RAND_METHOD that does this. For
BN_RAND_DEBUG, we just don't do it; that debugging was about mucking
with BN's internal representation, not requiring predictable rand
bytes.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4025)
Diffstat (limited to 'fuzz/asn1.c')
| -rw-r--r-- | fuzz/asn1.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/fuzz/asn1.c b/fuzz/asn1.c index c45fd79328..90262defd3 100644 --- a/fuzz/asn1.c +++ b/fuzz/asn1.c @@ -31,11 +31,6 @@ #include <openssl/rand.h> #include "fuzzer.h" -#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -extern int rand_predictable; -#endif -#define ENTROPY_NEEDED 32 - static ASN1_ITEM_EXP *item_type[] = { ASN1_ITEM_ref(ACCESS_DESCRIPTION), #ifndef OPENSSL_NO_RFC3779 @@ -216,12 +211,7 @@ int FuzzerInitialize(int *argc, char ***argv) OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); ERR_get_state(); CRYPTO_free_ex_index(0, -1); - RAND_add("", 1, ENTROPY_NEEDED); - RAND_status(); - -#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION - rand_predictable = 1; -#endif + FuzzerSetRand(); return 1; } |