diff options
Diffstat (limited to 'lib/crypto/c_src/eddsa.c')
| -rw-r--r-- | lib/crypto/c_src/eddsa.c | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/lib/crypto/c_src/eddsa.c b/lib/crypto/c_src/eddsa.c index 0fdada9677..0c89f9f6db 100644 --- a/lib/crypto/c_src/eddsa.c +++ b/lib/crypto/c_src/eddsa.c @@ -24,28 +24,40 @@ int get_eddsa_key(ErlNifEnv* env, int public, ERL_NIF_TERM key, EVP_PKEY **pkey) { /* key=[K] */ + EVP_PKEY *result; ERL_NIF_TERM head, tail, tail2, algo; ErlNifBinary bin; int type; - if (!enif_get_list_cell(env, key, &head, &tail) - || !enif_inspect_binary(env, head, &bin) - || !enif_get_list_cell(env, tail, &algo, &tail2) - || !enif_is_empty_list(env, tail2)) { - return 0; + if (!enif_get_list_cell(env, key, &head, &tail)) + goto err; + if (!enif_inspect_binary(env, head, &bin)) + goto err; + if (!enif_get_list_cell(env, tail, &algo, &tail2)) + goto err; + if (!enif_is_empty_list(env, tail2)) + goto err; + + if (algo == atom_ed25519) { + type = EVP_PKEY_ED25519; + } else if (algo == atom_ed448) { + type = EVP_PKEY_ED448; + } else { + goto err; } - if (algo == atom_ed25519) type = EVP_PKEY_ED25519; - else if (algo == atom_ed448) type = EVP_PKEY_ED448; - else - return 0; if (public) - *pkey = EVP_PKEY_new_raw_public_key(type, NULL, bin.data, bin.size); + result = EVP_PKEY_new_raw_public_key(type, NULL, bin.data, bin.size); else - *pkey = EVP_PKEY_new_raw_private_key(type, NULL, bin.data, bin.size); + result = EVP_PKEY_new_raw_private_key(type, NULL, bin.data, bin.size); + + if (result == NULL) + goto err; - if (!pkey) - return 0; + *pkey = result; return 1; + + err: + return 0; } #endif |