lib-dcrypt: Ensure param is found in dcrypt_openssl_private_to_public_key

diff --git a/src/lib-dcrypt/dcrypt-openssl3.c b/src/lib-dcrypt/dcrypt-openssl3.c
index 86fdea9cb04e54f97f28f1e33b166790c8f38760..e0d2f897df55025cf3611559fc30aa0c0a6beb06 100644 (file)
--- a/src/lib-dcrypt/dcrypt-openssl3.c
+++ b/src/lib-dcrypt/dcrypt-openssl3.c
@@ -2585,10 +2585,12 @@ dcrypt_openssl_private_to_public_key(struct dcrypt_private_key *priv_key,
        i_assert(pk != NULL); /* we shouldn't get malloc() failures */
 
        OSSL_PARAM *params = NULL;
-       EVP_PKEY_todata(pkey, EVP_PKEY_PUBLIC_KEY, &params);
+       if (EVP_PKEY_todata(pkey, EVP_PKEY_PUBLIC_KEY, &params) == 0)
+               i_unreached();
        /* keep the key format compressed */
        OSSL_PARAM *param = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT);
-       OSSL_PARAM_set_utf8_string(param, "compressed");
+       if (param != NULL)
+               OSSL_PARAM_set_utf8_string(param, "compressed");
        EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_pkey(NULL, pkey, NULL);
        if (EVP_PKEY_fromdata_init(ctx) < 1 ||
            EVP_PKEY_fromdata(ctx, &pk, EVP_PKEY_PUBLIC_KEY, params) < 1) {