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Fix for missing DSA parameters.

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This commit is contained in:
Dr. Stephen Henson
2001-05-24 22:33:16 +00:00
parent 2474b596ad
commit 4b04466f14
5 changed files with 18 additions and 1 deletions
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1
crypto/dsa/dsa.h
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@@ -236,6 +236,7 @@ DH *DSA_dup_DH(DSA *r);
/* Reason codes. */
#define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 100
#define DSA_R_MISSING_PARAMETERS 101
#ifdef __cplusplus
}

1
crypto/dsa/dsa_err.c
View File

@@ -85,6 +85,7 @@ static ERR_STRING_DATA DSA_str_functs[]=
static ERR_STRING_DATA DSA_str_reasons[]=
{
{DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE ,"data too large for key size"},
{DSA_R_MISSING_PARAMETERS ,"missing parameters"},
{0,NULL}
};

10
crypto/dsa/dsa_ossl.c
View File

@@ -105,6 +105,11 @@ 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();
@@ -167,6 +172,11 @@ 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;