diff options
Diffstat (limited to 'lib/crypto')
| -rw-r--r-- | lib/crypto/c_src/crypto.c | 120 | ||||
| -rw-r--r-- | lib/crypto/src/crypto.erl | 19 |
2 files changed, 128 insertions, 11 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index 0f07a862d2..4d8854ad8b 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -499,6 +499,10 @@ static int term2point(ErlNifEnv* env, ERL_NIF_TERM term, #endif static ERL_NIF_TERM bin_from_bn(ErlNifEnv* env, const BIGNUM *bn); +#ifdef HAS_ENGINE_SUPPORT +static int zero_terminate(ErlNifBinary bin, char **buf); +#endif + static int library_refc = 0; /* number of users of this dynamic library */ static ErlNifFunc nif_funcs[] = { @@ -663,7 +667,12 @@ static ERL_NIF_TERM atom_engine_method_store; static ERL_NIF_TERM atom_engine_method_pkey_meths; static ERL_NIF_TERM atom_engine_method_pkey_asn1_meths; static ERL_NIF_TERM atom_engine_method_ec; + +static ERL_NIF_TERM atom_engine; +static ERL_NIF_TERM atom_key_id; +static ERL_NIF_TERM atom_password; #endif + static ErlNifResourceType* hmac_context_rtype; struct hmac_context { @@ -1063,6 +1072,10 @@ static int initialize(ErlNifEnv* env, ERL_NIF_TERM load_info) atom_engine_method_pkey_meths = enif_make_atom(env,"engine_method_pkey_meths"); atom_engine_method_pkey_asn1_meths = enif_make_atom(env,"engine_method_pkey_asn1_meths"); atom_engine_method_ec = enif_make_atom(env,"engine_method_ec"); + + atom_engine = enif_make_atom(env,"engine"); + atom_key_id = enif_make_atom(env,"key_id"); + atom_password = enif_make_atom(env,"password"); #endif init_digest_types(env); @@ -3920,9 +3933,69 @@ static int get_pkey_sign_options(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF } +#ifdef HAS_ENGINE_SUPPORT +static int get_engine_and_key_id(ErlNifEnv *env, ERL_NIF_TERM key, char ** id, ENGINE **e) +{ + ERL_NIF_TERM engine_res, key_id_term; + struct engine_ctx *ctx; + ErlNifBinary key_id_bin; + + if (!enif_get_map_value(env, key, atom_engine, &engine_res) || + !enif_get_resource(env, engine_res, engine_ctx_rtype, (void**)&ctx) || + !enif_get_map_value(env, key, atom_key_id, &key_id_term) || + !enif_inspect_binary(env, key_id_term, &key_id_bin)) { + return 0; + } + else { + *e = ctx->engine; + return zero_terminate(key_id_bin, id); + } +} + + +static char *get_key_password(ErlNifEnv *env, ERL_NIF_TERM key) { + ERL_NIF_TERM tmp_term; + ErlNifBinary pwd_bin; + char *pwd; + if (enif_get_map_value(env, key, atom_password, &tmp_term) && + enif_inspect_binary(env, tmp_term, &pwd_bin) && + zero_terminate(pwd_bin, &pwd) + ) return pwd; + + return NULL; +} + +static int zero_terminate(ErlNifBinary bin, char **buf) { + *buf = enif_alloc(bin.size+1); + if (!*buf) + return 0; + memcpy(*buf, bin.data, bin.size); + *(*buf+bin.size) = 0; + return 1; +} +#endif + static int get_pkey_private_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key, EVP_PKEY **pkey) { - if (algorithm == atom_rsa) { + if (enif_is_map(env, key)) { +#ifdef HAS_ENGINE_SUPPORT + /* Use key stored in engine */ + ENGINE *e; + char *id; + char *password; + + if (!get_engine_and_key_id(env, key, &id, &e)) + return PKEY_BADARG; + password = get_key_password(env, key); + *pkey = ENGINE_load_private_key(e, id, NULL, password); + if (!pkey) + return PKEY_BADARG; + enif_free(id); +#else + return PKEY_BADARG; +#endif + } + else if (algorithm == atom_rsa) { RSA *rsa = RSA_new(); if (!get_rsa_private_key(env, key, rsa)) { @@ -3983,7 +4056,24 @@ static int get_pkey_private_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_ static int get_pkey_public_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key, EVP_PKEY **pkey) { - if (algorithm == atom_rsa) { + if (enif_is_map(env, key)) { +#ifdef HAS_ENGINE_SUPPORT + /* Use key stored in engine */ + ENGINE *e; + char *id; + char *password; + + if (!get_engine_and_key_id(env, key, &id, &e)) + return PKEY_BADARG; + password = get_key_password(env, key); + *pkey = ENGINE_load_public_key(e, id, NULL, password); + if (!pkey) + return PKEY_BADARG; + enif_free(id); +#else + return PKEY_BADARG; +#endif + } else if (algorithm == atom_rsa) { RSA *rsa = RSA_new(); if (!get_rsa_public_key(env, key, rsa)) { @@ -4041,7 +4131,7 @@ static int get_pkey_public_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_T } static ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) -{/* (Algorithm, Type, Data|{digest,Digest}, Key, Options) */ +{/* (Algorithm, Type, Data|{digest,Digest}, Key|#{}, Options) */ int i; const EVP_MD *md = NULL; unsigned char md_value[EVP_MAX_MD_SIZE]; @@ -4061,6 +4151,13 @@ enif_get_atom(env,argv[0],buf,1024,ERL_NIF_LATIN1); printf("algo=%s ",buf); enif_get_atom(env,argv[1],buf,1024,ERL_NIF_LATIN1); printf("hash=%s ",buf); printf("\r\n"); */ + +#ifndef HAS_ENGINE_SUPPORT + if (enif_is_map(env, argv[3])) { + return atom_notsup; + } +#endif + i = get_pkey_sign_digest(env, argv[0], argv[1], argv[2], md_value, &md, &tbs, &tbslen); if (i != PKEY_OK) { if (i == PKEY_NOTSUP) @@ -4082,10 +4179,9 @@ printf("\r\n"); } #ifdef HAS_EVP_PKEY_CTX -/* printf("EVP interface\r\n"); - */ ctx = EVP_PKEY_CTX_new(pkey, NULL); if (!ctx) goto badarg; + if (EVP_PKEY_sign_init(ctx) <= 0) goto badarg; if (md != NULL && EVP_PKEY_CTX_set_signature_md(ctx, md) <= 0) goto badarg; @@ -4187,6 +4283,12 @@ static ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM unsigned char *tbs; /* data to be signed */ size_t tbslen; +#ifndef HAS_ENGINE_SUPPORT + if (enif_is_map(env, argv[4])) { + return atom_notsup; + } +#endif + if (!enif_inspect_binary(env, argv[3], &sig_bin)) { return enif_make_badarg(env); } @@ -4397,7 +4499,13 @@ static ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM int algo_init = 0; /* char algo[1024]; */ - + +#ifndef HAS_ENGINE_SUPPORT + if (enif_is_map(env, argv[2])) { + return atom_notsup; + } +#endif + if (!enif_inspect_binary(env, argv[1], &in_bin)) { return enif_make_badarg(env); } diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl index 9eba4561e1..90efbc9e9c 100644 --- a/lib/crypto/src/crypto.erl +++ b/lib/crypto/src/crypto.erl @@ -430,12 +430,13 @@ sign(Algorithm, Type, Data, Key, Options) -> -type pk_algs() :: rsa | ecdsa | dss . --type pk_opt() :: list() | rsa_padding() . +-type pk_key() :: map() | [integer() | binary()] . +-type pk_opt() :: list() | rsa_padding() . --spec public_encrypt(pk_algs(), binary(), [binary()], pk_opt()) -> binary(). --spec public_decrypt(pk_algs(), binary(), [integer() | binary()], pk_opt()) -> binary(). --spec private_encrypt(pk_algs(), binary(), [integer() | binary()], pk_opt()) -> binary(). --spec private_decrypt(pk_algs(), binary(), [integer() | binary()], pk_opt()) -> binary(). +-spec public_encrypt(pk_algs(), binary(), pk_key(), pk_opt()) -> binary(). +-spec public_decrypt(pk_algs(), binary(), pk_key(), pk_opt()) -> binary(). +-spec private_encrypt(pk_algs(), binary(), pk_key(), pk_opt()) -> binary(). +-spec private_decrypt(pk_algs(), binary(), pk_key(), pk_opt()) -> binary(). public_encrypt(Algorithm, In, Key, Options) when is_list(Options) -> case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, false, true) of @@ -1107,6 +1108,11 @@ ensure_int_as_bin(Int) when is_integer(Int) -> ensure_int_as_bin(Bin) -> Bin. +format_pkey(_Alg, #{engine:=_, key_id:=T}=M) when is_binary(T) -> format_pwd(M); +format_pkey(_Alg, #{engine:=_, key_id:=T}=M) when is_list(T) -> format_pwd(M#{key_id:=list_to_binary(T)}); +format_pkey(_Alg, #{engine:=_ }=M) -> error({bad_key_id, M}); +format_pkey(_Alg, #{}=M) -> error({bad_engine_map, M}); +%%% format_pkey(rsa, Key) -> map_ensure_int_as_bin(Key); format_pkey(ecdsa, [Key, Curve]) -> @@ -1116,6 +1122,9 @@ format_pkey(dss, Key) -> format_pkey(_, Key) -> Key. +format_pwd(#{password := Pwd}=M) when is_list(Pwd) -> M#{password := list_to_binary(Pwd)}; +format_pwd(M) -> M. + %%-------------------------------------------------------------------- %% -type rsa_padding() :: 'rsa_pkcs1_padding' | 'rsa_pkcs1_oaep_padding' | 'rsa_no_padding'. |