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-rw-r--r--lib/crypto/c_src/crypto.c194
-rw-r--r--lib/crypto/src/crypto.erl27
2 files changed, 87 insertions, 134 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 35de3dbf0c..c28ff8136c 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -242,8 +242,6 @@ static ERL_NIF_TERM bf_cbc_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar
static ERL_NIF_TERM bf_ecb_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM blowfish_ofb64_encrypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM ec_key_to_term_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM term_to_ec_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM ecdsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -372,12 +370,10 @@ static ErlNifFunc nif_funcs[] = {
{"bf_ecb_crypt", 3, bf_ecb_crypt},
{"blowfish_ofb64_encrypt", 3, blowfish_ofb64_encrypt},
- {"ec_key_to_term_nif", 1, ec_key_to_term_nif},
- {"term_to_ec_key_nif", 3, term_to_ec_key_nif},
{"ec_key_generate", 1, ec_key_generate},
- {"ecdsa_sign_nif", 3, ecdsa_sign_nif},
- {"ecdsa_verify_nif", 4, ecdsa_verify_nif},
- {"ecdh_compute_key_nif", 2, ecdh_compute_key_nif}
+ {"ecdsa_sign_nif", 4, ecdsa_sign_nif},
+ {"ecdsa_verify_nif", 5, ecdsa_verify_nif},
+ {"ecdh_compute_key_nif", 3, ecdh_compute_key_nif}
};
#if defined(HAVE_EC)
@@ -472,10 +468,7 @@ static struct nid_map ec_curves[] = {
#define EC_CURVES_CNT (sizeof(ec_curves)/sizeof(struct nid_map))
-struct nif_ec_key {
- EC_KEY *key;
-};
-#endif
+#endif /* HAVE_EC */
ERL_NIF_INIT(crypto,nif_funcs,load,NULL,upgrade,unload)
@@ -528,17 +521,13 @@ static ERL_NIF_TERM atom_none;
static ERL_NIF_TERM atom_notsup;
static ERL_NIF_TERM atom_digest;
-static ERL_NIF_TERM atom_ec;
-
#if defined(HAVE_EC)
+static ERL_NIF_TERM atom_ec;
static ERL_NIF_TERM atom_prime_field;
static ERL_NIF_TERM atom_characteristic_two_field;
static ERL_NIF_TERM atom_tpbasis;
static ERL_NIF_TERM atom_ppbasis;
static ERL_NIF_TERM atom_onbasis;
-
-static ErlNifResourceType* res_type_ec_key;
-static void ec_key_dtor(ErlNifEnv* env, void* obj);
#endif
/*
@@ -570,7 +559,6 @@ static void error_handler(void* null, const char* errstr)
static int init(ErlNifEnv* env, ERL_NIF_TERM load_info)
{
- int i;
ErlNifSysInfo sys_info;
get_crypto_callbacks_t* funcp;
struct crypto_callbacks* ccb;
@@ -591,13 +579,6 @@ static int init(ErlNifEnv* env, ERL_NIF_TERM load_info)
return 0;
}
-#if defined(HAVE_EC)
- res_type_ec_key = enif_open_resource_type(env,NULL,"crypto.EC_KEY",
- ec_key_dtor,
- ERL_NIF_RT_CREATE|ERL_NIF_RT_TAKEOVER,
- NULL);
-#endif
-
if (library_refc > 0) {
/* Repeated loading of this library (module upgrade).
* Atoms and callbacks are already set, we are done.
@@ -639,8 +620,11 @@ static int init(ErlNifEnv* env, ERL_NIF_TERM load_info)
atom_ppbasis = enif_make_atom(env,"ppbasis");
atom_onbasis = enif_make_atom(env,"onbasis");
- for (i = 0; i < EC_CURVES_CNT; i++)
+ {
+ int i;
+ for (i = 0; i < EC_CURVES_CNT; i++)
ec_curves[i].atom = enif_make_atom(env,ec_curves[i].name);
+ }
#endif
init_digest_types(env);
@@ -1440,7 +1424,7 @@ static ERL_NIF_TERM hmac_final(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv
HMAC_CTX_cleanup(&ctx);
if (argc == 2 && req_len < mac_len) {
- // Only truncate to req_len bytes if asked.
+ /* Only truncate to req_len bytes if asked. */
mac_len = req_len;
}
mac_bin = enif_make_new_binary(env, mac_len, &ret);
@@ -2939,7 +2923,7 @@ static EC_KEY* ec_key_new(ErlNifEnv* env, ERL_NIF_TERM curve_arg)
&& c_arity == 5
&& get_bn_from_bin(env, curve[3], &bn_order)
&& (curve[4] != atom_none && get_bn_from_bin(env, curve[4], &cofactor))) {
- //* {Field, Prime, Point, Order, CoFactor} = Curve */
+ /* {Field, Prime, Point, Order, CoFactor} = Curve */
int f_arity = -1;
const ERL_NIF_TERM* field;
@@ -3093,7 +3077,7 @@ static ERL_NIF_TERM bn2term(ErlNifEnv* env, const BIGNUM *bn)
dlen = BN_num_bytes(bn);
ptr = enif_make_new_binary(env, dlen, &ret);
BN_bn2bin(bn, ptr);
-
+ ERL_VALGRIND_MAKE_MEM_DEFINED(ptr, dlen);
return ret;
}
@@ -3116,39 +3100,10 @@ static ERL_NIF_TERM point2term(ErlNifEnv* env,
enif_release_binary(&bin);
return enif_make_badarg(env);
}
-
+ ERL_VALGRIND_MAKE_MEM_DEFINED(bin.data, bin.size);
return enif_make_binary(env, &bin);
}
-#endif
-
-static ERL_NIF_TERM ec_key_to_term_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{
-#if defined(HAVE_EC)
- struct nif_ec_key *obj;
- const EC_GROUP *group;
- const EC_POINT *public_key;
- const BIGNUM *priv_key = NULL;
- ERL_NIF_TERM pub_key = atom_undefined;
-
- if (!enif_get_resource(env, argv[0], res_type_ec_key, (void **)&obj))
- return enif_make_badarg(env);
-
- group = EC_KEY_get0_group(obj->key);
- public_key = EC_KEY_get0_public_key(obj->key);
- priv_key = EC_KEY_get0_private_key(obj->key);
-
- if (group) {
- if (public_key)
- pub_key = point2term(env, group, public_key, EC_KEY_get_conv_form(obj->key));
- }
-
- return enif_make_tuple2(env, pub_key, bn2term(env, priv_key));
-#else
- return atom_notsup;
-#endif
-}
-#if defined(HAVE_EC)
static int term2point(ErlNifEnv* env, ERL_NIF_TERM term,
EC_GROUP *group, EC_POINT **pptr)
{
@@ -3176,24 +3131,22 @@ static int term2point(ErlNifEnv* env, ERL_NIF_TERM term,
return ret;
}
-#endif
-static ERL_NIF_TERM term_to_ec_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+static int get_ec_key(ErlNifEnv* env,
+ ERL_NIF_TERM curve, ERL_NIF_TERM priv, ERL_NIF_TERM pub,
+ EC_KEY** res)
{
-#if defined(HAVE_EC)
- ERL_NIF_TERM ret;
EC_KEY *key = NULL;
BIGNUM *priv_key = NULL;
EC_POINT *pub_key = NULL;
- struct nif_ec_key *obj;
EC_GROUP *group = NULL;
- if (!(argv[1] == atom_undefined || get_bn_from_bin(env, argv[1], &priv_key))
- || !(argv[2] == atom_undefined || enif_is_binary(env, argv[2]))) {
+ if (!(priv == atom_undefined || get_bn_from_bin(env, priv, &priv_key))
+ || !(pub == atom_undefined || enif_is_binary(env, pub))) {
goto out_err;
}
- key = ec_key_new(env, argv[0]);
+ key = ec_key_new(env, curve);
if (!key) {
goto out_err;
@@ -3202,12 +3155,12 @@ static ERL_NIF_TERM term_to_ec_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_T
if (!group)
group = EC_GROUP_dup(EC_KEY_get0_group(key));
- if (term2point(env, argv[2], group, &pub_key)) {
+ if (term2point(env, pub, group, &pub_key)) {
if (!EC_KEY_set_public_key(key, pub_key)) {
goto out_err;
}
}
- if (argv[1] != atom_undefined
+ if (priv != atom_undefined
&& !BN_is_zero(priv_key)) {
if (!EC_KEY_set_private_key(key, priv_key))
goto out_err;
@@ -3226,19 +3179,11 @@ static ERL_NIF_TERM term_to_ec_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_T
}
}
- obj = enif_alloc_resource(res_type_ec_key, sizeof(struct nif_ec_key));
- if (!obj)
- goto out_err;
-
- obj->key = key;
- ret = enif_make_resource(env, obj);
- enif_release_resource(obj);
-
goto out;
out_err:
if (key) EC_KEY_free(key);
- ret = enif_make_badarg(env);
+ key = NULL;
out:
/* some OpenSSL structures are mem-dup'ed into the key,
@@ -3246,11 +3191,12 @@ out:
if (priv_key) BN_clear_free(priv_key);
if (pub_key) EC_POINT_free(pub_key);
if (group) EC_GROUP_free(group);
- return ret;
-#else
- return atom_notsup;
-#endif
+ if (!key)
+ return 0;
+ *res = key;
+ return 1;
}
+#endif /* HAVE_EC */
static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
@@ -3258,14 +3204,21 @@ static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM
EC_KEY *key = ec_key_new(env, argv[0]);
if (key && EC_KEY_generate_key(key)) {
- ERL_NIF_TERM term;
- struct nif_ec_key *obj = enif_alloc_resource(res_type_ec_key, sizeof(struct nif_ec_key));
- if (!obj)
- return atom_error;
- obj->key = key;
- term = enif_make_resource(env, obj);
- enif_release_resource(obj);
- return term;
+ const EC_GROUP *group;
+ const EC_POINT *public_key;
+ ERL_NIF_TERM priv_key;
+ ERL_NIF_TERM pub_key = atom_undefined;
+
+ group = EC_KEY_get0_group(key);
+ public_key = EC_KEY_get0_public_key(key);
+
+ if (group && public_key) {
+ pub_key = point2term(env, group, public_key,
+ EC_KEY_get_conv_form(key));
+ }
+ priv_key = bn2term(env, EC_KEY_get0_private_key(key));
+ EC_KEY_free(key);
+ return enif_make_tuple2(env, pub_key, priv_key);
}
else
return enif_make_badarg(env);
@@ -3274,21 +3227,13 @@ static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM
#endif
}
-#if defined(HAVE_EC)
-static void ec_key_dtor(ErlNifEnv* env, void* obj)
-{
- struct nif_ec_key *key = (struct nif_ec_key*) obj;
- EC_KEY_free(key->key);
-}
-#endif
-
static ERL_NIF_TERM ecdsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Type, Data|{digest,Digest}, Key) */
+{/* (Type, Data|{digest,Digest}, Curve, Key) */
#if defined(HAVE_EC)
ErlNifBinary data_bin, ret_bin;
unsigned char hmacbuf[SHA_DIGEST_LENGTH];
unsigned int dsa_s_len;
- struct nif_ec_key *obj;
+ EC_KEY* key = NULL;
int i;
const ERL_NIF_TERM* tpl_terms;
int tpl_arity;
@@ -3303,30 +3248,32 @@ static ERL_NIF_TERM ecdsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
return atom_notsup;
}
- if (!enif_get_resource(env, argv[2], res_type_ec_key, (void **)&obj))
- return enif_make_badarg(env);
+ if (!get_ec_key(env, argv[2], argv[3], atom_undefined, &key))
+ goto badarg;
if (enif_get_tuple(env, argv[1], &tpl_arity, &tpl_terms)) {
if (tpl_arity != 2 || tpl_terms[0] != atom_digest
|| !enif_inspect_binary(env, tpl_terms[1], &data_bin)
|| data_bin.size != digp->len) {
- return enif_make_badarg(env);
+ goto badarg;
}
digest = data_bin.data;
}
else {
if (!enif_inspect_binary(env,argv[1],&data_bin)) {
- return enif_make_badarg(env);
+ goto badarg;
}
digest = hmacbuf;
digp->funcp(data_bin.data, data_bin.size, digest);
}
- enif_alloc_binary(ECDSA_size(obj->key), &ret_bin);
+ enif_alloc_binary(ECDSA_size(key), &ret_bin);
i = ECDSA_sign(digp->NID_type, digest, digp->len,
- ret_bin.data, &dsa_s_len, obj->key);
+ ret_bin.data, &dsa_s_len, key);
+
+ EC_KEY_free(key);
if (i) {
if (dsa_s_len != ret_bin.size) {
enif_realloc_binary(&ret_bin, dsa_s_len);
@@ -3337,18 +3284,23 @@ static ERL_NIF_TERM ecdsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
enif_release_binary(&ret_bin);
return atom_error;
}
+
+badarg:
+ if (key)
+ EC_KEY_free(key);
+ return enif_make_badarg(env);
#else
return atom_notsup;
#endif
}
static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Type, Data|{digest,Digest}, Signature, Key) */
+{/* (Type, Data|{digest,Digest}, Signature, Curve, Key) */
#if defined(HAVE_EC)
ErlNifBinary data_bin, sign_bin;
unsigned char hmacbuf[SHA512_LEN];
int i;
- struct nif_ec_key *obj;
+ EC_KEY* key = NULL;
const ERL_NIF_TERM type = argv[0];
const ERL_NIF_TERM* tpl_terms;
int tpl_arity;
@@ -3364,15 +3316,15 @@ static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER
}
if (!enif_inspect_binary(env, argv[2], &sign_bin)
- || !enif_get_resource(env, argv[3], res_type_ec_key, (void **)&obj))
- return enif_make_badarg(env);
+ || !get_ec_key(env, argv[3], atom_undefined, argv[4], &key))
+ goto badarg;
if (enif_get_tuple(env, argv[1], &tpl_arity, &tpl_terms)) {
if (tpl_arity != 2 || tpl_terms[0] != atom_digest
|| !enif_inspect_binary(env, tpl_terms[1], &data_bin)
|| data_bin.size != digp->len) {
- return enif_make_badarg(env);
+ goto badarg;
}
digest = data_bin.data;
}
@@ -3381,13 +3333,20 @@ static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER
digp->funcp(data_bin.data, data_bin.size, digest);
}
else {
- return enif_make_badarg(env);
+ goto badarg;
}
i = ECDSA_verify(digp->NID_type, digest, digp->len,
- sign_bin.data, sign_bin.size, obj->key);
+ sign_bin.data, sign_bin.size, key);
+
+ EC_KEY_free(key);
return (i==1 ? atom_true : atom_false);
+
+badarg:
+ if (key)
+ EC_KEY_free(key);
+ return enif_make_badarg(env);
#else
return atom_notsup;
#endif
@@ -3398,24 +3357,24 @@ static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER
(_OthersPublicKey, _MyEC_Point)
*/
static ERL_NIF_TERM ecdh_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+/* (OtherPublicKey, Curve, My) */
{
#if defined(HAVE_EC)
ERL_NIF_TERM ret;
unsigned char *p;
- struct nif_ec_key *other_key;
+ EC_KEY* key = NULL;
int field_size = 0;
int i;
-
EC_GROUP *group;
const BIGNUM *priv_key;
EC_POINT *my_ecpoint;
EC_KEY *other_ecdh = NULL;
- if (!enif_get_resource(env, argv[1], res_type_ec_key, (void **)&other_key))
+ if (!get_ec_key(env, argv[1], argv[2], atom_undefined, &key))
return enif_make_badarg(env);
- group = EC_GROUP_dup(EC_KEY_get0_group(other_key->key));
- priv_key = EC_KEY_get0_private_key(other_key->key);
+ group = EC_GROUP_dup(EC_KEY_get0_group(key));
+ priv_key = EC_KEY_get0_private_key(key);
if (!term2point(env, argv[0], group, &my_ecpoint)) {
goto out_err;
@@ -3439,6 +3398,7 @@ out:
if (group) EC_GROUP_free(group);
if (my_ecpoint) EC_POINT_free(my_ecpoint);
if (other_ecdh) EC_KEY_free(other_ecdh);
+ if (key) EC_KEY_free(key);
return ret;
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index a093b45410..8e8370f3b0 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -455,7 +455,7 @@ verify(rsa, Type, DataOrDigest, Signature, Key) ->
Bool -> Bool
end;
verify(ecdsa, Type, DataOrDigest, Signature, [Key, Curve]) ->
- case ecdsa_verify_nif(Type, DataOrDigest, Signature, term_to_ec_key(Curve, undefined, Key)) of
+ case ecdsa_verify_nif(Type, DataOrDigest, Signature, nif_curve_params(Curve), ensure_int_as_bin(Key)) of
notsup -> erlang:error(notsup);
Bool -> Bool
end.
@@ -474,7 +474,7 @@ sign(dss, Type, DataOrDigest, Key) ->
Sign -> Sign
end;
sign(ecdsa, Type, DataOrDigest, [Key, Curve]) ->
- case ecdsa_sign_nif(Type, DataOrDigest, term_to_ec_key(Curve, Key, undefined)) of
+ case ecdsa_sign_nif(Type, DataOrDigest, nif_curve_params(Curve), ensure_int_as_bin(Key)) of
error -> erlang:error(badkey, [Type,DataOrDigest,Key]);
Sign -> Sign
end.
@@ -557,7 +557,7 @@ generate_key(srp, {user, [Generator, Prime, Version]}, PrivateArg)
user_srp_gen_key(Private, Generator, Prime);
generate_key(ecdh, Curve, undefined) ->
- ec_key_to_term_nif(ec_key_generate(Curve)).
+ ec_key_generate(Curve).
compute_key(dh, OthersPublicKey, MyPrivateKey, DHParameters) ->
@@ -599,7 +599,8 @@ compute_key(srp, UserPublic, {HostPublic, HostPrivate},
compute_key(ecdh, Others, My, Curve) ->
ecdh_compute_key_nif(ensure_int_as_bin(Others),
- term_to_ec_key(Curve,My,undefined)).
+ nif_curve_params(Curve),
+ ensure_int_as_bin(My)).
random_bytes(N) ->
@@ -1399,11 +1400,11 @@ srp_value_B_nif(_Multiplier, _Verifier, _Generator, _Exponent, _Prime) -> ?nif_s
%% Digital signatures --------------------------------------------------------------------
rsa_sign_nif(_Type,_Data,_Key) -> ?nif_stub.
dss_sign_nif(_Type,_Data,_Key) -> ?nif_stub.
-ecdsa_sign_nif(_Type, _DataOrDigest, _Key) -> ?nif_stub.
+ecdsa_sign_nif(_Type, _DataOrDigest, _Curve, _Key) -> ?nif_stub.
dss_verify_nif(_Type, _Data, _Signature, _Key) -> ?nif_stub.
rsa_verify_nif(_Type, _Data, _Signature, _Key) -> ?nif_stub.
-ecdsa_verify_nif(_Type, _DataOrDigest, _Signature, _Key) -> ?nif_stub.
+ecdsa_verify_nif(_Type, _DataOrDigest, _Signature, _Curve, _Key) -> ?nif_stub.
%% Public Keys --------------------------------------------------------------------
%% DH Diffie-Hellman functions
@@ -1456,12 +1457,11 @@ dh_compute_key_nif(_OthersPublicKey, _MyPrivateKey, _DHParameters) -> ?nif_stub.
ec_key_generate(_Key) -> ?nif_stub.
-ecdh_compute_key_nif(_Others, _My) -> ?nif_stub.
+ecdh_compute_key_nif(_Others, _Curve, _My) -> ?nif_stub.
%%
%% EC
%%
-ec_key_to_term_nif(_Key) -> ?nif_stub.
term_to_nif_prime({prime_field, Prime}) ->
{prime_field, int_to_bin(Prime)};
@@ -1469,19 +1469,12 @@ term_to_nif_prime(PrimeField) ->
PrimeField.
term_to_nif_curve({A, B, Seed}) ->
{ensure_int_as_bin(A), ensure_int_as_bin(B), Seed}.
-term_to_nif_curve_parameters({PrimeField, Curve, BasePoint, Order, CoFactor}) ->
+nif_curve_params({PrimeField, Curve, BasePoint, Order, CoFactor}) ->
{term_to_nif_prime(PrimeField), term_to_nif_curve(Curve), ensure_int_as_bin(BasePoint), int_to_bin(Order), int_to_bin(CoFactor)};
-term_to_nif_curve_parameters(Curve) when is_atom(Curve) ->
+nif_curve_params(Curve) when is_atom(Curve) ->
%% named curve
Curve.
-term_to_ec_key(Curve, PrivKey, PubKey) ->
- term_to_ec_key_nif(term_to_nif_curve_parameters(Curve),
- ensure_int_as_bin(PrivKey),
- ensure_int_as_bin(PubKey)).
-
-term_to_ec_key_nif(_Curve, _PrivKey, _PubKey) -> ?nif_stub.
-
%% MISC --------------------------------------------------------------------
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 00:21:58 +0000