• Registered: 2022-09-22
  • Posts: 3

Topic: Random test failed ! in wolfssl-fips-ready v5.5.0

- I built it successfully, but when i ran the test. It always failed. Please support to me. Thanks

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  • Registered: 2021-07-06
  • Posts: 152

Re: Random test failed ! in wolfssl-fips-ready v5.5.0

Hi karikjame2021,

This is most likely caused by an outdated FIPS hash, you will need to update your FIPS hash and rebuild.  The easiest way to do this is to run the script "fips-hash.sh" in the root of your wolfSSL directory.
You will need to register our FIPS seed callback in your application with the following code:

#ifdef WC_RNG_SEED_CB
 wc_SetSeed_Cb(wc_GenerateSeed);
#endif

Thanks,
Kareem

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  • Registered: 2021-07-06
  • Posts: 152

Re: Random test failed ! in wolfssl-fips-ready v5.5.0

Hi karikjame2021,

In addition to the above, you will need to register a FIPS hash callback in your application.  See below for how to register this.  Note that our test suite already has its own FIPS hash callback.

#ifdef HAVE_FIPS
    wolfCrypt_SetCb_fips(myFipsCb);
#endif
#ifdef HAVE_FIPS
    #include <wolfssl/wolfcrypt/fips_test.h>

    static void myFipsCb(int ok, int err, const char* hash)
    {
        printf("in my Fips callback, ok = %d, err = %d\n", ok, err);
        printf("message = %s\n", wc_GetErrorString(err));
        printf("hash = %s\n", hash);

        if (err == IN_CORE_FIPS_E) {
            printf("In core integrity hash check failure, copy above hash\n");
            printf("into verifyCore[] in fips_test.c and rebuild\n");
        }
    }
#endif

May I ask where you are located, and if this is for a commercial project?  Feel free to reach out to us at support [AT] wolfssl [DOT] com if this is sensitive information.

Thanks,
Kareem

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  • Registered: 2022-09-22
  • Posts: 3

Re: Random test failed ! in wolfssl-fips-ready v5.5.0

thanks for reply. I met it when run testsuite. I try to set new hash to fips_test.c and rebuild but no luckly. I want to try first before I can ask my company buy it

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  • Registered: 2021-07-06
  • Posts: 152

Re: Random test failed ! in wolfssl-fips-ready v5.5.0

Is your FIPS hash unstable?  Is it changing after you change it in fips_test.c and rebuild?
If so, make sure you are linking wolfCrypt FIPS in the right order, see our linker script here for an example: https://github.com/wolfSSL/wolfssl/blob … er_fips.ld  Specifically, wolfcrypt_first.o needs to come first, then the FIPS objects, and lastly wolfcrypt_last.o.

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  • Registered: 2022-09-22
  • Posts: 3

Re: Random test failed ! in wolfssl-fips-ready v5.5.0

"Is it changing after you change it in fips_test.c and rebuild?" => no change when I rebuilt .
"Is your FIPS hash unstable?" => what it mean ?

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