diff options
| author | Dr. Stephen Henson <steve@openssl.org> | 2001-04-21 12:06:01 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2001-04-21 12:06:01 +0000 |
| commit | c962479bdf4379bcd21733e55bb8d3e6cabca055 (patch) | |
| tree | 6e01ea534b74649f4f52382d442c0024f90f7b33 /crypto/dsa/dsa_ossl.c | |
| parent | b31ccc362cf1bd27b1f292f67c799cb5296ca73e (diff) | |
Fix ASN1 bug when decoding OTHER type.
Various S/MIME DSA related fixes.
Diffstat (limited to 'crypto/dsa/dsa_ossl.c')
| -rw-r--r-- | crypto/dsa/dsa_ossl.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/crypto/dsa/dsa_ossl.c b/crypto/dsa/dsa_ossl.c index 7346817337..f91a3a9959 100644 --- a/crypto/dsa/dsa_ossl.c +++ b/crypto/dsa/dsa_ossl.c @@ -106,6 +106,11 @@ static DSA_SIG *dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa) int i,reason=ERR_R_BN_LIB; DSA_SIG *ret=NULL; + if (!dsa->p || !dsa->q || !dsa->g) + { + reason=DSA_R_MISSING_PARAMETERS; + goto err; + } BN_init(&m); BN_init(&xr); s=BN_new(); @@ -168,6 +173,11 @@ static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp) BIGNUM k,*kinv=NULL,*r=NULL; int ret=0; + if (!dsa->p || !dsa->q || !dsa->g) + { + DSAerr(DSA_F_DSA_SIGN_SETUP,DSA_R_MISSING_PARAMETERS); + return 0; + } if (ctx_in == NULL) { if ((ctx=BN_CTX_new()) == NULL) goto err; @@ -225,6 +235,11 @@ static int dsa_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig, BIGNUM u1,u2,t1; BN_MONT_CTX *mont=NULL; int ret = -1; + if (!dsa->p || !dsa->q || !dsa->g) + { + DSAerr(DSA_F_DSA_DO_VERIFY,DSA_R_MISSING_PARAMETERS); + return -1; + } if ((ctx=BN_CTX_new()) == NULL) goto err; BN_init(&u1); |