diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/crypto/c_src/crypto.c | 71 |
1 files changed, 41 insertions, 30 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index 7367a3824c..df607732bf 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -4234,9 +4234,9 @@ static ERL_NIF_TERM evp_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_ { #ifdef HAVE_ED_CURVE_DH int type; - EVP_PKEY_CTX *ctx; + EVP_PKEY_CTX *ctx = NULL; ErlNifBinary peer_bin, my_bin, key_bin; - EVP_PKEY *peer_key, *my_key; + EVP_PKEY *peer_key = NULL, *my_key = NULL; size_t max_size; if (argv[0] == atom_x25519) type = EVP_PKEY_X25519; @@ -4244,41 +4244,43 @@ static ERL_NIF_TERM evp_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_ else return enif_make_badarg(env); if (!enif_inspect_binary(env, argv[1], &peer_bin) || - !enif_inspect_binary(env, argv[2], &my_bin)) { - return enif_make_badarg(env); - } + !enif_inspect_binary(env, argv[2], &my_bin)) + goto return_badarg; if (!(my_key = EVP_PKEY_new_raw_private_key(type, NULL, my_bin.data, my_bin.size)) || - !(ctx = EVP_PKEY_CTX_new(my_key, NULL))) { - return enif_make_badarg(env); - } + !(ctx = EVP_PKEY_CTX_new(my_key, NULL))) + goto return_badarg; - if (!EVP_PKEY_derive_init(ctx)) { - return enif_make_badarg(env); - } + if (!EVP_PKEY_derive_init(ctx)) + goto return_badarg; if (!(peer_key = EVP_PKEY_new_raw_public_key(type, NULL, peer_bin.data, peer_bin.size)) || - !EVP_PKEY_derive_set_peer(ctx, peer_key)) { - return enif_make_badarg(env); - } + !EVP_PKEY_derive_set_peer(ctx, peer_key)) + goto return_badarg; - if (!EVP_PKEY_derive(ctx, NULL, &max_size)) { - return enif_make_badarg(env); - } + if (!EVP_PKEY_derive(ctx, NULL, &max_size)) + goto return_badarg; if (!enif_alloc_binary(max_size, &key_bin) || - !EVP_PKEY_derive(ctx, key_bin.data, &key_bin.size)) { - return enif_make_badarg(env); - } + !EVP_PKEY_derive(ctx, key_bin.data, &key_bin.size)) + goto return_badarg; if (key_bin.size < max_size) { size_t actual_size = key_bin.size; - if (!enif_realloc_binary(&key_bin, actual_size)) { - return enif_make_badarg(env); - } + if (!enif_realloc_binary(&key_bin, actual_size)) + goto return_badarg; } + EVP_PKEY_free(my_key); + EVP_PKEY_free(peer_key); + EVP_PKEY_CTX_free(ctx); return enif_make_binary(env, &key_bin); + +return_badarg: + if (my_key) EVP_PKEY_free(my_key); + if (peer_key) EVP_PKEY_free(peer_key); + if (ctx) EVP_PKEY_CTX_free(ctx); + return enif_make_badarg(env); #else return atom_notsup; #endif @@ -4289,7 +4291,7 @@ static ERL_NIF_TERM evp_generate_key_nif(ErlNifEnv* env, int argc, const ERL_NIF { #ifdef HAVE_ED_CURVE_DH int type; - EVP_PKEY_CTX *ctx; + EVP_PKEY_CTX *ctx = NULL; EVP_PKEY *pkey = NULL; ERL_NIF_TERM ret_pub, ret_prv; size_t key_len; @@ -4300,22 +4302,30 @@ static ERL_NIF_TERM evp_generate_key_nif(ErlNifEnv* env, int argc, const ERL_NIF if (!(ctx = EVP_PKEY_CTX_new_id(type, NULL))) return enif_make_badarg(env); - if (!EVP_PKEY_keygen_init(ctx)) return atom_error; - if (!EVP_PKEY_keygen(ctx, &pkey)) return atom_error; + if (!EVP_PKEY_keygen_init(ctx)) goto return_error; + if (!EVP_PKEY_keygen(ctx, &pkey)) goto return_error; - if (!EVP_PKEY_get_raw_public_key(pkey, NULL, &key_len)) return atom_error; + if (!EVP_PKEY_get_raw_public_key(pkey, NULL, &key_len)) goto return_error; if (!EVP_PKEY_get_raw_public_key(pkey, enif_make_new_binary(env, key_len, &ret_pub), &key_len)) - return atom_error; + goto return_error; - if (!EVP_PKEY_get_raw_private_key(pkey, NULL, &key_len)) return atom_error; + if (!EVP_PKEY_get_raw_private_key(pkey, NULL, &key_len)) goto return_error; if (!EVP_PKEY_get_raw_private_key(pkey, enif_make_new_binary(env, key_len, &ret_prv), &key_len)) - return atom_error; + goto return_error; + EVP_PKEY_free(pkey); + EVP_PKEY_CTX_free(ctx); return enif_make_tuple2(env, ret_pub, ret_prv); + +return_error: + if (pkey) EVP_PKEY_free(pkey); + if (ctx) EVP_PKEY_CTX_free(ctx); + return atom_error; + #else return atom_notsup; #endif @@ -4811,6 +4821,7 @@ printf("\r\n"); EVP_MD_CTX_free(mdctx); goto badarg; } + EVP_MD_CTX_free(mdctx); #else goto badarg; #endif |