diff options
| author | Markus Friedl <markus@cvs.openbsd.org> | 2001-04-22 23:33:05 +0000 |
|---|---|---|
| committer | Markus Friedl <markus@cvs.openbsd.org> | 2001-04-22 23:33:05 +0000 |
| commit | 57a8b3e0d802939f0cc267a143db357b6804a815 (patch) | |
| tree | 6dd308ecf4eef3a764b48e248638a46d5d5432a0 /lib/libcrypto | |
| parent | f80ed804ebbffd12db9adf0e1279ec16d97b3715 (diff) | |
CRT and DH+SSL fix from 0.9.6a, ok provos@/deraadt@
Diffstat (limited to 'lib/libcrypto')
| -rw-r--r-- | lib/libcrypto/rsa/rsa_eay.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libcrypto/rsa/rsa_eay.c b/lib/libcrypto/rsa/rsa_eay.c index 8b8a1e279a7..ccaa62b2392 100644 --- a/lib/libcrypto/rsa/rsa_eay.c +++ b/lib/libcrypto/rsa/rsa_eay.c @@ -419,7 +419,7 @@ err: static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa) { const RSA_METHOD *meth; - BIGNUM r1,m1; + BIGNUM r1,m1,vrfy; int ret=0; BN_CTX *ctx; @@ -427,6 +427,7 @@ static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa) if ((ctx=BN_CTX_new()) == NULL) goto err; BN_init(&m1); BN_init(&r1); + BN_init(&vrfy); if (rsa->flags & RSA_FLAG_CACHE_PRIVATE) { @@ -474,10 +475,19 @@ static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa) if (!BN_mul(&r1,r0,rsa->q,ctx)) goto err; if (!BN_add(r0,&r1,&m1)) goto err; + if (rsa->e && rsa->n) + { + if (!meth->bn_mod_exp(&vrfy,r0,rsa->e,rsa->n,ctx,NULL)) goto err; + if (BN_cmp(I, &vrfy) != 0) + { + if (!meth->bn_mod_exp(r0,I,rsa->d,rsa->n,ctx,NULL)) goto err; + } + } ret=1; err: BN_clear_free(&m1); BN_clear_free(&r1); + BN_clear_free(&vrfy); BN_CTX_free(ctx); return(ret); } |