diff options
| -rw-r--r-- | gost_ec_keyx.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gost_ec_keyx.c b/gost_ec_keyx.c index deca4f5..4a0eb82 100644 --- a/gost_ec_keyx.c +++ b/gost_ec_keyx.c @@ -615,6 +615,19 @@ static int pkey_gost2018_decrypt(EVP_PKEY_CTX *pctx, unsigned char *key, o q * Q_eph is not equal to zero point. */ + if (data->shared_ukm == NULL && pst->ukm != NULL) { + if (EVP_PKEY_CTX_ctrl(pctx, -1, -1, EVP_PKEY_CTRL_SET_IV, + ASN1_STRING_length(pst->ukm), (void *)ASN1_STRING_get0_data(pst->ukm)) < 0) { + GOSTerr(GOST_F_PKEY_GOST2018_DECRYPT, GOST_R_UKM_NOT_SET); + goto err; + } + } + + if (data->shared_ukm == NULL) { + GOSTerr(GOST_F_PKEY_GOST2018_DECRYPT, GOST_R_UKM_NOT_SET); + goto err; + } + if (gost_keg(data->shared_ukm, pkey_nid, EC_KEY_get0_public_key(EVP_PKEY_get0(eph_key)), EVP_PKEY_get0(priv), expkeys) <= 0) { |