diff options
| author | Bodo Möller <bodo@openssl.org> | 2000-11-29 18:08:24 +0000 |
|---|---|---|
| committer | Bodo Möller <bodo@openssl.org> | 2000-11-29 18:08:24 +0000 |
| commit | 14697d9d6d883bd1193c379900ee9102acd27c19 (patch) | |
| tree | bfaaedb4df068b92387c846286f8699002044bf6 /crypto/bn/bntest.c | |
| parent | c6a926d9e27af13da1108b821db5e508e4a19cbe (diff) | |
BN_to_montgomery expects its inputs to be in the interval 0 .. modulus-1,
so we have to reduce the random numbers used in test_mont.
Before this change, test_mont failed in [debug-]solaris-sparcv9-gcc
configurations ("Montgomery multiplication test failed!" because
the multiplication result obtained with Montgomery multiplication
differed from the result obtained by BN_mod_mul).
Substituing the old version of bn_gcd.c (BN_mod_inverse) did not avoid
the problem.
The strange thing is that it I did not observe any problems
when using debug-solaris-sparcv8-gcc and solaris-sparcv9-cc,
as well as when compiling OpenSSL 0.9.6 in the solaric-sparcv9-gcc
configuration on the same system.
Diffstat (limited to 'crypto/bn/bntest.c')
| -rw-r--r-- | crypto/bn/bntest.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/bn/bntest.c b/crypto/bn/bntest.c index 86d384428c..9e478dfe24 100644 --- a/crypto/bn/bntest.c +++ b/crypto/bn/bntest.c @@ -629,6 +629,9 @@ int test_mont(BIO *bp, BN_CTX *ctx) BN_rand(&n,bits,0,1); BN_MONT_CTX_set(mont,&n,ctx); + BN_nnmod(&a,&a,&n,ctx); + BN_nnmod(&b,&b,&n,ctx); + BN_to_montgomery(&A,&a,mont,ctx); BN_to_montgomery(&B,&b,mont,ctx); |