aesni-x86_64.pl: make ECB subroutine Windows ABI compliant.

[oweals/openssl.git] / crypto / ec / ec_asn1.c

diff --git a/crypto/ec/ec_asn1.c b/crypto/ec/ec_asn1.c
index e94f34e11b7ca36e0f449a2181745088921fbb2c..52d31c2f9642d0eeaf7d47edf8784396c2a4e29f 100644 (file)
--- a/crypto/ec/ec_asn1.c
+++ b/crypto/ec/ec_asn1.c
@@ -1183,29 +1183,46 @@ EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len)
                goto err;
                }
 
+       if (ret->pub_key)
+               EC_POINT_clear_free(ret->pub_key);
+       ret->pub_key = EC_POINT_new(ret->group);
+       if (ret->pub_key == NULL)
+               {
+               ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
+               goto err;
+               }
+
        if (priv_key->publicKey)
                {
                const unsigned char *pub_oct;
-               size_t pub_oct_len;
+               int pub_oct_len;
 
-               if (ret->pub_key)
-                       EC_POINT_clear_free(ret->pub_key);
-               ret->pub_key = EC_POINT_new(ret->group);
-               if (ret->pub_key == NULL)
+               pub_oct     = M_ASN1_STRING_data(priv_key->publicKey);
+               pub_oct_len = M_ASN1_STRING_length(priv_key->publicKey);
+               /* The first byte - point conversion form - must be present. */
+                if (pub_oct_len <= 0)
                        {
-                       ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
+                       ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL);
                        goto err;
                        }
-               pub_oct     = M_ASN1_STRING_data(priv_key->publicKey);
-               pub_oct_len = M_ASN1_STRING_length(priv_key->publicKey);
-               /* save the point conversion form */
+               /* Save the point conversion form. */
                ret->conv_form = (point_conversion_form_t)(pub_oct[0] & ~0x01);
                if (!EC_POINT_oct2point(ret->group, ret->pub_key,
-                       pub_oct, pub_oct_len, NULL))
+                                       pub_oct, (size_t)(pub_oct_len), NULL))
+                       {
+                       ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
+                       goto err;
+                       }
+               }
+       else
+               {
+               if (!EC_POINT_mul(ret->group, ret->pub_key, ret->priv_key, NULL, NULL, NULL))
                        {
                        ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
                        goto err;
                        }
+               /* Remember the original private-key-only encoding. */
+               ret->enc_flag |= EC_PKEY_NO_PUBKEY;
                }
 
        ok = 1;
@@ -1230,7 +1247,8 @@ int       i2d_ECPrivateKey(EC_KEY *a, unsigned char **out)
        size_t          buf_len=0, tmp_len;
        EC_PRIVATEKEY   *priv_key=NULL;
 
-       if (a == NULL || a->group == NULL || a->priv_key == NULL)
+       if (a == NULL || a->group == NULL || a->priv_key == NULL ||
+           (!(a->enc_flag & EC_PKEY_NO_PUBKEY) && a->pub_key == NULL))
                {
                ECerr(EC_F_I2D_ECPRIVATEKEY,
                       ERR_R_PASSED_NULL_PARAMETER);