diff options
Diffstat (limited to 'src/crypto/trust_token/voprf.c')
| -rw-r--r-- | src/crypto/trust_token/voprf.c | 48 |
1 files changed, 12 insertions, 36 deletions
diff --git a/src/crypto/trust_token/voprf.c b/src/crypto/trust_token/voprf.c index c2ab815b..504deee5 100644 --- a/src/crypto/trust_token/voprf.c +++ b/src/crypto/trust_token/voprf.c @@ -483,16 +483,10 @@ static int voprf_sign_tt(const VOPRF_METHOD *method, return 0; } - if (num_to_issue > ((size_t)-1) / sizeof(EC_JACOBIAN) || - num_to_issue > ((size_t)-1) / sizeof(EC_SCALAR)) { - OPENSSL_PUT_ERROR(TRUST_TOKEN, ERR_R_OVERFLOW); - return 0; - } - int ret = 0; - EC_JACOBIAN *BTs = OPENSSL_malloc(num_to_issue * sizeof(EC_JACOBIAN)); - EC_JACOBIAN *Zs = OPENSSL_malloc(num_to_issue * sizeof(EC_JACOBIAN)); - EC_SCALAR *es = OPENSSL_malloc(num_to_issue * sizeof(EC_SCALAR)); + EC_JACOBIAN *BTs = OPENSSL_calloc(num_to_issue, sizeof(EC_JACOBIAN)); + EC_JACOBIAN *Zs = OPENSSL_calloc(num_to_issue, sizeof(EC_JACOBIAN)); + EC_SCALAR *es = OPENSSL_calloc(num_to_issue, sizeof(EC_SCALAR)); CBB batch_cbb; CBB_zero(&batch_cbb); if (!BTs || @@ -582,17 +576,11 @@ static STACK_OF(TRUST_TOKEN) *voprf_unblind_tt( return NULL; } - if (count > ((size_t)-1) / sizeof(EC_JACOBIAN) || - count > ((size_t)-1) / sizeof(EC_SCALAR)) { - OPENSSL_PUT_ERROR(TRUST_TOKEN, ERR_R_OVERFLOW); - return NULL; - } - int ok = 0; STACK_OF(TRUST_TOKEN) *ret = sk_TRUST_TOKEN_new_null(); - EC_JACOBIAN *BTs = OPENSSL_malloc(count * sizeof(EC_JACOBIAN)); - EC_JACOBIAN *Zs = OPENSSL_malloc(count * sizeof(EC_JACOBIAN)); - EC_SCALAR *es = OPENSSL_malloc(count * sizeof(EC_SCALAR)); + EC_JACOBIAN *BTs = OPENSSL_calloc(count, sizeof(EC_JACOBIAN)); + EC_JACOBIAN *Zs = OPENSSL_calloc(count, sizeof(EC_JACOBIAN)); + EC_SCALAR *es = OPENSSL_calloc(count, sizeof(EC_SCALAR)); CBB batch_cbb; CBB_zero(&batch_cbb); if (ret == NULL || @@ -868,16 +856,10 @@ static int voprf_sign_impl(const VOPRF_METHOD *method, return 0; } - if (num_to_issue > ((size_t)-1) / sizeof(EC_JACOBIAN) || - num_to_issue > ((size_t)-1) / sizeof(EC_SCALAR)) { - OPENSSL_PUT_ERROR(TRUST_TOKEN, ERR_R_OVERFLOW); - return 0; - } - int ret = 0; - EC_JACOBIAN *BTs = OPENSSL_malloc(num_to_issue * sizeof(EC_JACOBIAN)); - EC_JACOBIAN *Zs = OPENSSL_malloc(num_to_issue * sizeof(EC_JACOBIAN)); - EC_SCALAR *dis = OPENSSL_malloc(num_to_issue * sizeof(EC_SCALAR)); + EC_JACOBIAN *BTs = OPENSSL_calloc(num_to_issue, sizeof(EC_JACOBIAN)); + EC_JACOBIAN *Zs = OPENSSL_calloc(num_to_issue, sizeof(EC_JACOBIAN)); + EC_SCALAR *dis = OPENSSL_calloc(num_to_issue, sizeof(EC_SCALAR)); if (!BTs || !Zs || !dis) { goto err; } @@ -984,17 +966,11 @@ static STACK_OF(TRUST_TOKEN) *voprf_unblind( return NULL; } - if (count > ((size_t)-1) / sizeof(EC_JACOBIAN) || - count > ((size_t)-1) / sizeof(EC_SCALAR)) { - OPENSSL_PUT_ERROR(TRUST_TOKEN, ERR_R_OVERFLOW); - return NULL; - } - int ok = 0; STACK_OF(TRUST_TOKEN) *ret = sk_TRUST_TOKEN_new_null(); - EC_JACOBIAN *BTs = OPENSSL_malloc(count * sizeof(EC_JACOBIAN)); - EC_JACOBIAN *Zs = OPENSSL_malloc(count * sizeof(EC_JACOBIAN)); - EC_SCALAR *dis = OPENSSL_malloc(count * sizeof(EC_SCALAR)); + EC_JACOBIAN *BTs = OPENSSL_calloc(count, sizeof(EC_JACOBIAN)); + EC_JACOBIAN *Zs = OPENSSL_calloc(count, sizeof(EC_JACOBIAN)); + EC_SCALAR *dis = OPENSSL_calloc(count, sizeof(EC_SCALAR)); if (ret == NULL || !BTs || !Zs || !dis) { goto err; } |