diff options
Diffstat (limited to 'crypto/bn/bn_blind.c')
| -rw-r--r-- | crypto/bn/bn_blind.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/crypto/bn/bn_blind.c b/crypto/bn/bn_blind.c index a7b34f0bf0..35be32b99a 100644 --- a/crypto/bn/bn_blind.c +++ b/crypto/bn/bn_blind.c @@ -67,8 +67,14 @@ BIGNUM *mod; { BN_BLINDING *ret=NULL; + bn_check_top(Ai); + bn_check_top(mod); + if ((ret=(BN_BLINDING *)Malloc(sizeof(BN_BLINDING))) == NULL) + { BNerr(BN_F_BN_BLINDING_NEW,ERR_R_MALLOC_FAILURE); + return(NULL); + } memset(ret,0,sizeof(BN_BLINDING)); if ((ret->A=BN_new()) == NULL) goto err; if ((ret->Ai=BN_new()) == NULL) goto err; @@ -78,7 +84,7 @@ BIGNUM *mod; return(ret); err: if (ret != NULL) BN_BLINDING_free(ret); - return(ret); + return(NULL); } void BN_BLINDING_free(r) @@ -114,6 +120,8 @@ BIGNUM *n; BN_BLINDING *b; BN_CTX *ctx; { + bn_check_top(n); + if ((b->A == NULL) || (b->Ai == NULL)) { BNerr(BN_F_BN_BLINDING_CONVERT,BN_R_NOT_INITALISED); @@ -128,6 +136,8 @@ BN_BLINDING *b; BN_CTX *ctx; { int ret; + + bn_check_top(n); if ((b->A == NULL) || (b->Ai == NULL)) { BNerr(BN_F_BN_BLINDING_INVERT,BN_R_NOT_INITALISED); |