diff options
Diffstat (limited to 'freebsd/crypto/openssl/crypto/ec/ecp_nistz256.c')
| -rw-r--r-- | freebsd/crypto/openssl/crypto/ec/ecp_nistz256.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/freebsd/crypto/openssl/crypto/ec/ecp_nistz256.c b/freebsd/crypto/openssl/crypto/ec/ecp_nistz256.c index 27c0e870..9be2f5d9 100644 --- a/freebsd/crypto/openssl/crypto/ec/ecp_nistz256.c +++ b/freebsd/crypto/openssl/crypto/ec/ecp_nistz256.c @@ -1120,23 +1120,32 @@ static int ecp_nistz256_set_from_affine(EC_POINT *out, const EC_GROUP *group, const P256_POINT_AFFINE *in, BN_CTX *ctx) { - BIGNUM x, y; - BN_ULONG d_x[P256_LIMBS], d_y[P256_LIMBS]; + BIGNUM x, y, z; int ret = 0; - memcpy(d_x, in->X, sizeof(d_x)); - x.d = d_x; + /* + * |const| qualifier omission is compensated by BN_FLG_STATIC_DATA + * flag, which effectively means "read-only data". + */ + x.d = (BN_ULONG *)in->X; x.dmax = x.top = P256_LIMBS; x.neg = 0; x.flags = BN_FLG_STATIC_DATA; - memcpy(d_y, in->Y, sizeof(d_y)); - y.d = d_y; + y.d = (BN_ULONG *)in->Y; y.dmax = y.top = P256_LIMBS; y.neg = 0; y.flags = BN_FLG_STATIC_DATA; - ret = EC_POINT_set_affine_coordinates_GFp(group, out, &x, &y, ctx); + z.d = (BN_ULONG *)ONE; + z.dmax = z.top = P256_LIMBS; + z.neg = 0; + z.flags = BN_FLG_STATIC_DATA; + + if ((ret = (BN_copy(&out->X, &x) != NULL)) + && (ret = (BN_copy(&out->Y, &y) != NULL)) + && (ret = (BN_copy(&out->Z, &z) != NULL))) + out->Z_is_one = 1; return ret; } |