diff options
Diffstat (limited to 'lib/crypto/src/crypto.erl')
| -rw-r--r-- | lib/crypto/src/crypto.erl | 980 |
1 files changed, 741 insertions, 239 deletions
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl index 17351d10ea..c64586897e 100644 --- a/lib/crypto/src/crypto.erl +++ b/lib/crypto/src/crypto.erl @@ -66,12 +66,31 @@ ensure_engine_unloaded/2 ]). +-export_type([ %% A minimum exported: only what public_key needs. + dh_private/0, + dh_public/0, + dss_digest_type/0, + ec_named_curve/0, + ecdsa_digest_type/0, + pk_encrypt_decrypt_opts/0, + pk_sign_verify_opts/0, + rsa_digest_type/0, + sha1/0, + sha2/0 + ]). + -export_type([engine_ref/0, key_id/0, password/0 ]). - +%%% Opaque types must be exported :( +-export_type([ + stream_state/0, + hmac_state/0, + hash_state/0 + ]). + %% Private. For tests. -export([packed_openssl_version/4, engine_methods_convert_to_bitmask/2, get_test_engine/0]). @@ -83,16 +102,187 @@ %% Used by strong_rand_float/0 -define(HALF_DBL_EPSILON, 1.1102230246251565e-16). % math:pow(2, -53) -%%-type ecdsa_digest_type() :: 'md5' | 'sha' | 'sha256' | 'sha384' | 'sha512'. + +%%% ===== BEGIN NEW TYPING ==== + +%%% Basic +-type key_integer() :: integer() | binary(). % Always binary() when used as return value + +%%% Keys +-type rsa_public() :: [key_integer()] . % [E, N] +-type rsa_private() :: [key_integer()] . % [E, N, D] | [E, N, D, P1, P2, E1, E2, C] +-type rsa_params() :: {ModulusSizeInBits::integer(), PublicExponent::key_integer()} . + +-type dss_public() :: [key_integer()] . % [P, Q, G, Y] +-type dss_private() :: [key_integer()] . % [P, Q, G, X] + +-type ecdsa_public() :: key_integer() . +-type ecdsa_private() :: key_integer() . +-type ecdsa_params() :: ec_named_curve() | edwards_curve() | ec_explicit_curve() . + +-type srp_public() :: key_integer() . +-type srp_private() :: key_integer() . +-type srp_gen_params() :: {user,srp_user_gen_params()} | {host,srp_host_gen_params()}. +-type srp_comp_params() :: {user,srp_user_comp_params()} | {host,srp_host_comp_params()}. +-type srp_user_gen_params() :: list(binary() | atom() | list()) . +-type srp_host_gen_params() :: list(binary() | atom() | list()) . +-type srp_user_comp_params() :: list(binary() | atom()) . +-type srp_host_comp_params() :: list(binary() | atom()) . + +-type dh_public() :: key_integer() . +-type dh_private() :: key_integer() . +-type dh_params() :: [key_integer()] . % [P, G] | [P, G, PrivateKeyBitLength] + +-type ecdh_public() :: key_integer() . +-type ecdh_private() :: key_integer() . +-type ecdh_params() :: ec_named_curve() | edwards_curve() | ec_explicit_curve() . + + +%%% Curves + +-type ec_explicit_curve() :: {Field :: ec_field(), + Curve :: ec_curve(), + BasePoint :: binary(), + Order :: binary(), + CoFactor :: none | % FIXME: Really? + binary() + } . + +-type ec_curve() :: {A :: binary(), + B :: binary(), + Seed :: none | binary() + } . + +-type ec_field() :: ec_prime_field() | ec_characteristic_two_field() . + +-type ec_prime_field() :: {prime_field, Prime :: integer()} . +-type ec_characteristic_two_field() :: {characteristic_two_field, M :: integer(), Basis :: ec_basis()} . + +-type ec_basis() :: {tpbasis, K :: non_neg_integer()} + | {ppbasis, K1 :: non_neg_integer(), K2 :: non_neg_integer(), K3 :: non_neg_integer()} + | onbasis . + +-type ec_named_curve() :: brainpoolP160r1 + | brainpoolP160t1 + | brainpoolP192r1 + | brainpoolP192t1 + | brainpoolP224r1 + | brainpoolP224t1 + | brainpoolP256r1 + | brainpoolP256t1 + | brainpoolP320r1 + | brainpoolP320t1 + | brainpoolP384r1 + | brainpoolP384t1 + | brainpoolP512r1 + | brainpoolP512t1 + | c2pnb163v1 + | c2pnb163v2 + | c2pnb163v3 + | c2pnb176v1 + | c2pnb208w1 + | c2pnb272w1 + | c2pnb304w1 + | c2pnb368w1 + | c2tnb191v1 + | c2tnb191v2 + | c2tnb191v3 + | c2tnb239v1 + | c2tnb239v2 + | c2tnb239v3 + | c2tnb359v1 + | c2tnb431r1 + | ipsec3 + | ipsec4 + | prime192v1 + | prime192v2 + | prime192v3 + | prime239v1 + | prime239v2 + | prime239v3 + | prime256v1 + | secp112r1 + | secp112r2 + | secp128r1 + | secp128r2 + | secp160k1 + | secp160r1 + | secp160r2 + | secp192k1 + | secp192r1 + | secp224k1 + | secp224r1 + | secp256k1 + | secp256r1 + | secp384r1 + | secp521r1 + | sect113r1 + | sect113r2 + | sect131r1 + | sect131r2 + | sect163k1 + | sect163r1 + | sect163r2 + | sect193r1 + | sect193r2 + | sect233k1 + | sect233r1 + | sect239k1 + | sect283k1 + | sect283r1 + | sect409k1 + | sect409r1 + | sect571k1 + | sect571r1 + | wtls1 + | wtls10 + | wtls11 + | wtls12 + | wtls3 + | wtls4 + | wtls5 + | wtls6 + | wtls7 + | wtls8 + | wtls9 + . + +-type edwards_curve() :: x25519 + | x448 . + +%%% +-type block_cipher_with_iv() :: cbc_cipher() + | cfb_cipher() + | aes_cbc128 + | aes_cbc256 + | aes_ige256 + | blowfish_ofb64 + | des3_cbf % cfb misspelled + | des_ede3 + | rc2_cbc . + +-type cbc_cipher() :: des_cbc | des3_cbc | aes_cbc | blowfish_cbc . +-type aead_cipher() :: aes_gcm | chacha20_poly1305 . +-type cfb_cipher() :: aes_cfb128 | aes_cfb8 | blowfish_cfb64 | des3_cfb | des_cfb . + +-type block_cipher_without_iv() :: ecb_cipher() . +-type ecb_cipher() :: des_ecb | blowfish_ecb | aes_ecb . + +-type key() :: iodata(). +-type des3_key() :: [key()]. + +%%% +-type rsa_digest_type() :: sha1() | sha2() | md5 | ripemd160 . +-type dss_digest_type() :: sha1() | sha2() . +-type ecdsa_digest_type() :: sha1() | sha2() . + +-type sha1() :: sha . +-type sha2() :: sha224 | sha256 | sha384 | sha512 . +-type sha3() :: sha3_224 | sha3_256 | sha3_384 | sha3_512 . + +-type compatibility_only_hash() :: md5 | md4 . + -type crypto_integer() :: binary() | integer(). -%%-type ec_named_curve() :: atom(). -%%-type ec_point() :: crypto_integer(). -%%-type ec_basis() :: {tpbasis, K :: non_neg_integer()} | {ppbasis, K1 :: non_neg_integer(), K2 :: non_neg_integer(), K3 :: non_neg_integer()} | onbasis. -%%-type ec_field() :: {prime_field, Prime :: integer()} | {characteristic_two_field, M :: integer(), Basis :: ec_basis()}. -%%-type ec_prime() :: {A :: crypto_integer(), B :: crypto_integer(), Seed :: binary() | none}. -%%-type ec_curve_spec() :: {Field :: ec_field(), Prime :: ec_prime(), Point :: crypto_integer(), Order :: integer(), CoFactor :: none | integer()}. -%%-type ec_curve() :: ec_named_curve() | ec_curve_spec(). -%%-type ec_key() :: {Curve :: ec_curve(), PrivKey :: binary() | undefined, PubKey :: ec_point() | undefined}. -compile(no_native). -on_load(on_load/0). @@ -108,14 +298,36 @@ nif_stub_error(Line) -> %% Crypto app version history: %% (no version): Driver implementation %% 2.0 : NIF implementation, requires OTP R14 + +%% When generating documentation from crypto.erl, the macro ?CRYPTO_VSN is not defined. +%% That causes the doc generation to stop... +-ifndef(CRYPTO_VSN). +-define(CRYPTO_VSN, "??"). +-endif. version() -> ?CRYPTO_VSN. +-spec start() -> ok | {error, Reason::term()}. start() -> application:start(crypto). +-spec stop() -> ok | {error, Reason::term()}. stop() -> application:stop(crypto). +-spec supports() -> [Support] + when Support :: {hashs, Hashs} + | {ciphers, Ciphers} + | {public_keys, PKs} + | {macs, Macs} + | {curves, Curves}, + Hashs :: [sha1() | sha2() | sha3() | ripemd160 | compatibility_only_hash()], + Ciphers :: [stream_cipher() + | block_cipher_with_iv() | block_cipher_without_iv() + | aead_cipher() + ], + PKs :: [rsa | dss | ecdsa | dh | ecdh | ec_gf2m], + Macs :: [hmac | cmac | poly1305], + Curves :: [ec_named_curve() | edwards_curve()]. supports()-> {Hashs, PubKeys, Ciphers, Macs, Curves} = algorithms(), [{hashs, Hashs}, @@ -125,95 +337,163 @@ supports()-> {curves, Curves} ]. +-spec info_lib() -> [{Name,VerNum,VerStr}] when Name :: binary(), + VerNum :: integer(), + VerStr :: binary() . info_lib() -> ?nif_stub. -spec info_fips() -> not_supported | not_enabled | enabled. info_fips() -> ?nif_stub. --spec enable_fips_mode(boolean()) -> boolean(). - +-spec enable_fips_mode(Enable) -> Result when Enable :: boolean(), + Result :: boolean(). enable_fips_mode(_) -> ?nif_stub. --spec hash(_, iodata()) -> binary(). +%%%================================================================ +%%% +%%% Hashing +%%% +%%%================================================================ -hash(Hash, Data0) -> - Data = iolist_to_binary(Data0), - MaxBytes = max_bytes(), - hash(Hash, Data, erlang:byte_size(Data), MaxBytes). +-define(HASH_HASH_ALGORITHM, sha1() | sha2() | sha3() | ripemd160 | compatibility_only_hash() ). --spec hash_init('md5'|'md4'|'ripemd160'| - 'sha'|'sha224'|'sha256'|'sha384'|'sha512'| - 'sha3_224' | 'sha3_256' | 'sha3_384' | 'sha3_512') -> any(). +-spec hash(Type, Data) -> Digest when Type :: ?HASH_HASH_ALGORITHM, + Data :: iodata(), + Digest :: binary(). +hash(Type, Data) -> + Data1 = iolist_to_binary(Data), + MaxBytes = max_bytes(), + hash(Type, Data1, erlang:byte_size(Data1), MaxBytes). -hash_init(Hash) -> - notsup_to_error(hash_init_nif(Hash)). +-opaque hash_state() :: reference(). --spec hash_update(_, iodata()) -> any(). +-spec hash_init(Type) -> State when Type :: ?HASH_HASH_ALGORITHM, + State :: hash_state(). +hash_init(Type) -> + notsup_to_error(hash_init_nif(Type)). -hash_update(State, Data0) -> - Data = iolist_to_binary(Data0), +-spec hash_update(State, Data) -> NewState when State :: hash_state(), + NewState :: hash_state(), + Data :: iodata() . +hash_update(Context, Data) -> + Data1 = iolist_to_binary(Data), MaxBytes = max_bytes(), - hash_update(State, Data, erlang:byte_size(Data), MaxBytes). + hash_update(Context, Data1, erlang:byte_size(Data1), MaxBytes). --spec hash_final(_) -> binary(). +-spec hash_final(State) -> Digest when State :: hash_state(), + Digest :: binary(). +hash_final(Context) -> + notsup_to_error(hash_final_nif(Context)). -hash_final(State) -> - notsup_to_error(hash_final_nif(State)). +%%%================================================================ +%%% +%%% MACs (Message Authentication Codes) +%%% +%%%================================================================ +%%%---- HMAC --spec hmac(_, iodata(), iodata()) -> binary(). --spec hmac(_, iodata(), iodata(), integer()) -> binary(). --spec hmac_init(atom(), iodata()) -> binary(). --spec hmac_update(binary(), iodata()) -> binary(). --spec hmac_final(binary()) -> binary(). --spec hmac_final_n(binary(), integer()) -> binary(). +-define(HMAC_HASH_ALGORITHM, sha1() | sha2() | sha3() | compatibility_only_hash()). -hmac(Type, Key, Data0) -> - Data = iolist_to_binary(Data0), - hmac(Type, Key, Data, undefined, erlang:byte_size(Data), max_bytes()). -hmac(Type, Key, Data0, MacSize) -> - Data = iolist_to_binary(Data0), - hmac(Type, Key, Data, MacSize, erlang:byte_size(Data), max_bytes()). +%%%---- hmac/3,4 + +-spec hmac(Type, Key, Data) -> + Mac when Type :: ?HMAC_HASH_ALGORITHM, + Key :: iodata(), + Data :: iodata(), + Mac :: binary() . +hmac(Type, Key, Data) -> + Data1 = iolist_to_binary(Data), + hmac(Type, Key, Data1, undefined, erlang:byte_size(Data1), max_bytes()). + +-spec hmac(Type, Key, Data, MacLength) -> + Mac when Type :: ?HMAC_HASH_ALGORITHM, + Key :: iodata(), + Data :: iodata(), + MacLength :: integer(), + Mac :: binary() . +hmac(Type, Key, Data, MacLength) -> + Data1 = iolist_to_binary(Data), + hmac(Type, Key, Data1, MacLength, erlang:byte_size(Data1), max_bytes()). + +%%%---- hmac_init, hamc_update, hmac_final + +-opaque hmac_state() :: binary(). + +-spec hmac_init(Type, Key) -> + State when Type :: ?HMAC_HASH_ALGORITHM, + Key :: iodata(), + State :: hmac_state() . hmac_init(Type, Key) -> notsup_to_error(hmac_init_nif(Type, Key)). +%%%---- hmac_update + +-spec hmac_update(State, Data) -> NewState when Data :: iodata(), + State :: hmac_state(), + NewState :: hmac_state(). hmac_update(State, Data0) -> Data = iolist_to_binary(Data0), hmac_update(State, Data, erlang:byte_size(Data), max_bytes()). +%%%---- hmac_final + +-spec hmac_final(State) -> Mac when State :: hmac_state(), + Mac :: binary(). hmac_final(Context) -> notsup_to_error(hmac_final_nif(Context)). + +-spec hmac_final_n(State, HashLen) -> Mac when State :: hmac_state(), + HashLen :: integer(), + Mac :: binary(). hmac_final_n(Context, HashLen) -> notsup_to_error(hmac_final_nif(Context, HashLen)). --spec cmac(_, iodata(), iodata()) -> binary(). --spec cmac(_, iodata(), iodata(), integer()) -> binary(). +%%%---- CMAC +-define(CMAC_CIPHER_ALGORITHM, cbc_cipher() | cfb_cipher() | blowfish_cbc | des_ede3 | rc2_cbc ). + +-spec cmac(Type, Key, Data) -> + Mac when Type :: ?CMAC_CIPHER_ALGORITHM, + Key :: iodata(), + Data :: iodata(), + Mac :: binary(). cmac(Type, Key, Data) -> notsup_to_error(cmac_nif(Type, Key, Data)). -cmac(Type, Key, Data, MacSize) -> - erlang:binary_part(cmac(Type, Key, Data), 0, MacSize). --spec poly1305(iodata(), iodata()) -> binary(). +-spec cmac(Type, Key, Data, MacLength) -> + Mac when Type :: ?CMAC_CIPHER_ALGORITHM, + Key :: iodata(), + Data :: iodata(), + MacLength :: integer(), + Mac :: binary(). +cmac(Type, Key, Data, MacLength) -> + erlang:binary_part(cmac(Type, Key, Data), 0, MacLength). + +%%%---- POLY1305 + +-spec poly1305(iodata(), iodata()) -> Mac when Mac :: binary(). poly1305(Key, Data) -> poly1305_nif(Key, Data). -%% Ecrypt/decrypt %%% +%%%================================================================ +%%% +%%% Encrypt/decrypt +%%% +%%%================================================================ + +%%%---- Block ciphers --spec block_encrypt(des_cbc | des_cfb | - des3_cbc | des3_cbf | des3_cfb | des_ede3 | - blowfish_cbc | blowfish_cfb64 | blowfish_ofb64 | - aes_cbc128 | aes_cfb8 | aes_cfb128 | aes_cbc256 | aes_ige256 | - aes_cbc | - rc2_cbc, - Key::iodata(), Ivec::binary(), Data::iodata()) -> binary(); - (aes_gcm | chacha20_poly1305, Key::iodata(), Ivec::binary(), {AAD::binary(), Data::iodata()}) -> {binary(), binary()}; - (aes_gcm, Key::iodata(), Ivec::binary(), {AAD::binary(), Data::iodata(), TagLength::1..16}) -> {binary(), binary()}. +-spec block_encrypt(Type::block_cipher_with_iv(), Key::key()|des3_key(), Ivec::binary(), PlainText::iodata()) -> binary(); + (Type::aead_cipher(), Key::iodata(), Ivec::binary(), {AAD::binary(), PlainText::iodata()}) -> + {binary(), binary()}; + (aes_gcm, Key::iodata(), Ivec::binary(), {AAD::binary(), PlainText::iodata(), TagLength::1..16}) -> + {binary(), binary()}. -block_encrypt(Type, Key, Ivec, Data) when Type =:= des_cbc; +block_encrypt(Type, Key, Ivec, PlainText) when Type =:= des_cbc; Type =:= des_cfb; Type =:= blowfish_cbc; Type =:= blowfish_cfb64; @@ -224,34 +504,28 @@ block_encrypt(Type, Key, Ivec, Data) when Type =:= des_cbc; Type =:= aes_cbc256; Type =:= aes_cbc; Type =:= rc2_cbc -> - block_crypt_nif(Type, Key, Ivec, Data, true); -block_encrypt(Type, Key0, Ivec, Data) when Type =:= des3_cbc; + block_crypt_nif(Type, Key, Ivec, PlainText, true); +block_encrypt(Type, Key0, Ivec, PlainText) when Type =:= des3_cbc; Type =:= des_ede3 -> Key = check_des3_key(Key0), - block_crypt_nif(des_ede3_cbc, Key, Ivec, Data, true); -block_encrypt(des3_cbf, Key0, Ivec, Data) -> + block_crypt_nif(des_ede3_cbc, Key, Ivec, PlainText, true); +block_encrypt(des3_cbf, Key0, Ivec, PlainText) -> % cfb misspelled Key = check_des3_key(Key0), - block_crypt_nif(des_ede3_cbf, Key, Ivec, Data, true); -block_encrypt(des3_cfb, Key0, Ivec, Data) -> + block_crypt_nif(des_ede3_cbf, Key, Ivec, PlainText, true); +block_encrypt(des3_cfb, Key0, Ivec, PlainText) -> Key = check_des3_key(Key0), - block_crypt_nif(des_ede3_cfb, Key, Ivec, Data, true); -block_encrypt(aes_ige256, Key, Ivec, Data) -> - notsup_to_error(aes_ige_crypt_nif(Key, Ivec, Data, true)); -block_encrypt(aes_gcm, Key, Ivec, {AAD, Data}) -> - aes_gcm_encrypt(Key, Ivec, AAD, Data); -block_encrypt(aes_gcm, Key, Ivec, {AAD, Data, TagLength}) -> - aes_gcm_encrypt(Key, Ivec, AAD, Data, TagLength); -block_encrypt(chacha20_poly1305, Key, Ivec, {AAD, Data}) -> - chacha20_poly1305_encrypt(Key, Ivec, AAD, Data). - --spec block_decrypt(des_cbc | des_cfb | - des3_cbc | des3_cbf | des3_cfb | des_ede3 | - blowfish_cbc | blowfish_cfb64 | blowfish_ofb64 | - aes_cbc128 | aes_cfb8 | aes_cfb128 | aes_cbc256 | aes_ige256 | - aes_cbc | - rc2_cbc, - Key::iodata(), Ivec::binary(), Data::iodata()) -> binary(); - (aes_gcm | chacha20_poly1305, Key::iodata(), Ivec::binary(), + block_crypt_nif(des_ede3_cfb, Key, Ivec, PlainText, true); +block_encrypt(aes_ige256, Key, Ivec, PlainText) -> + notsup_to_error(aes_ige_crypt_nif(Key, Ivec, PlainText, true)); +block_encrypt(aes_gcm, Key, Ivec, {AAD, PlainText}) -> + aes_gcm_encrypt(Key, Ivec, AAD, PlainText); +block_encrypt(aes_gcm, Key, Ivec, {AAD, PlainText, TagLength}) -> + aes_gcm_encrypt(Key, Ivec, AAD, PlainText, TagLength); +block_encrypt(chacha20_poly1305, Key, Ivec, {AAD, PlainText}) -> + chacha20_poly1305_encrypt(Key, Ivec, AAD, PlainText). + +-spec block_decrypt(Type::block_cipher_with_iv(), Key::key()|des3_key(), Ivec::binary(), Data::iodata()) -> binary(); + (Type::aead_cipher(), Key::iodata(), Ivec::binary(), {AAD::binary(), Data::iodata(), Tag::binary()}) -> binary() | error. block_decrypt(Type, Key, Ivec, Data) when Type =:= des_cbc; Type =:= des_cfb; @@ -269,7 +543,7 @@ block_decrypt(Type, Key0, Ivec, Data) when Type =:= des3_cbc; Type =:= des_ede3 -> Key = check_des3_key(Key0), block_crypt_nif(des_ede3_cbc, Key, Ivec, Data, false); -block_decrypt(des3_cbf, Key0, Ivec, Data) -> +block_decrypt(des3_cbf, Key0, Ivec, Data) -> % cfb misspelled Key = check_des3_key(Key0), block_crypt_nif(des_ede3_cbf, Key, Ivec, Data, false); block_decrypt(des3_cfb, Key0, Ivec, Data) -> @@ -282,18 +556,23 @@ block_decrypt(aes_gcm, Key, Ivec, {AAD, Data, Tag}) -> block_decrypt(chacha20_poly1305, Key, Ivec, {AAD, Data, Tag}) -> chacha20_poly1305_decrypt(Key, Ivec, AAD, Data, Tag). --spec block_encrypt(des_ecb | blowfish_ecb | aes_ecb, Key::iodata(), Data::iodata()) -> binary(). -block_encrypt(Type, Key, Data) -> - block_crypt_nif(Type, Key, Data, true). --spec block_decrypt(des_ecb | blowfish_ecb | aes_ecb, Key::iodata(), Data::iodata()) -> binary(). +-spec block_encrypt(Type::block_cipher_without_iv(), Key::key(), PlainText::iodata()) -> binary(). + +block_encrypt(Type, Key, PlainText) -> + block_crypt_nif(Type, Key, PlainText, true). + + +-spec block_decrypt(Type::block_cipher_without_iv(), Key::key(), Data::iodata()) -> binary(). block_decrypt(Type, Key, Data) -> block_crypt_nif(Type, Key, Data, false). --spec next_iv(des_cbc | des3_cbc | aes_cbc | aes_ige, Data::iodata()) -> binary(). +-spec next_iv(Type:: cbc_cipher(), Data) -> NextIVec when % Type :: cbc_cipher(), %des_cbc | des3_cbc | aes_cbc | aes_ige, + Data :: iodata(), + NextIVec :: binary(). next_iv(Type, Data) when is_binary(Data) -> IVecSize = case Type of des_cbc -> 8; @@ -308,7 +587,9 @@ next_iv(Type, Data) when is_binary(Data) -> next_iv(Type, Data) when is_list(Data) -> next_iv(Type, list_to_binary(Data)). --spec next_iv(des_cfb, Data::iodata(), Ivec::binary()) -> binary(). +-spec next_iv(des_cfb, Data, IVec) -> NextIVec when Data :: iodata(), + IVec :: binary(), + NextIVec :: binary(). next_iv(des_cfb, Data, IVec) -> IVecAndData = list_to_binary([IVec, Data]), @@ -317,41 +598,57 @@ next_iv(des_cfb, Data, IVec) -> next_iv(Type, Data, _Ivec) -> next_iv(Type, Data). +%%%---- Stream ciphers + +-opaque stream_state() :: {stream_cipher(), reference()}. + +-type stream_cipher() :: rc4 | aes_ctr | chacha20 . + +-spec stream_init(Type, Key, IVec) -> State when Type :: aes_ctr | chacha20, + Key :: iodata(), + IVec :: binary(), + State :: stream_state() . stream_init(aes_ctr, Key, Ivec) -> {aes_ctr, aes_ctr_stream_init(Key, Ivec)}; stream_init(chacha20, Key, Ivec) -> {chacha20, chacha20_stream_init(Key,Ivec)}. +-spec stream_init(Type, Key) -> State when Type :: rc4, + Key :: iodata(), + State :: stream_state() . stream_init(rc4, Key) -> {rc4, notsup_to_error(rc4_set_key(Key))}. +-spec stream_encrypt(State, PlainText) -> {NewState, CipherText} + when State :: stream_state(), + PlainText :: iodata(), + NewState :: stream_state(), + CipherText :: iodata() . stream_encrypt(State, Data0) -> Data = iolist_to_binary(Data0), MaxByts = max_bytes(), stream_crypt(fun do_stream_encrypt/2, State, Data, erlang:byte_size(Data), MaxByts, []). +-spec stream_decrypt(State, CipherText) -> {NewState, PlainText} + when State :: stream_state(), + CipherText :: iodata(), + NewState :: stream_state(), + PlainText :: iodata() . stream_decrypt(State, Data0) -> Data = iolist_to_binary(Data0), MaxByts = max_bytes(), stream_crypt(fun do_stream_decrypt/2, State, Data, erlang:byte_size(Data), MaxByts, []). -%% -%% RAND - pseudo random numbers using RN_ and BN_ functions in crypto lib -%% + +%%%================================================================ +%%% +%%% RAND - pseudo random numbers using RN_ and BN_ functions in crypto lib +%%% +%%%================================================================ -type rand_cache_seed() :: nonempty_improper_list(non_neg_integer(), binary()). --spec strong_rand_bytes(non_neg_integer()) -> binary(). --spec rand_seed() -> rand:state(). --spec rand_seed_s() -> rand:state(). --spec rand_seed_alg(Alg :: atom()) -> - {rand:alg_handler(), - atom() | rand_cache_seed()}. --spec rand_seed_alg_s(Alg :: atom()) -> - {rand:alg_handler(), - atom() | rand_cache_seed()}. --spec rand_uniform(crypto_integer(), crypto_integer()) -> - crypto_integer(). +-spec strong_rand_bytes(N::non_neg_integer()) -> binary(). strong_rand_bytes(Bytes) -> case strong_rand_bytes_nif(Bytes) of false -> erlang:error(low_entropy); @@ -360,16 +657,24 @@ strong_rand_bytes(Bytes) -> strong_rand_bytes_nif(_Bytes) -> ?nif_stub. +-spec rand_seed() -> rand:state(). rand_seed() -> rand:seed(rand_seed_s()). +-spec rand_seed_s() -> rand:state(). rand_seed_s() -> rand_seed_alg_s(?MODULE). +-spec rand_seed_alg(Alg :: atom()) -> + {rand:alg_handler(), + atom() | rand_cache_seed()}. rand_seed_alg(Alg) -> rand:seed(rand_seed_alg_s(Alg)). -define(CRYPTO_CACHE_BITS, 56). +-spec rand_seed_alg_s(Alg :: atom()) -> + {rand:alg_handler(), + atom() | rand_cache_seed()}. rand_seed_alg_s(?MODULE) -> {#{ type => ?MODULE, bits => 64, @@ -427,7 +732,9 @@ strong_rand_float() -> WholeRange = strong_rand_range(1 bsl 53), ?HALF_DBL_EPSILON * bytes_to_integer(WholeRange). -rand_uniform(From,To) when is_binary(From), is_binary(To) -> +-spec rand_uniform(crypto_integer(), crypto_integer()) -> + crypto_integer(). +rand_uniform(From, To) when is_binary(From), is_binary(To) -> case rand_uniform_nif(From,To) of <<Len:32/integer, MSB, Rest/binary>> when MSB > 127 -> <<(Len + 1):32/integer, 0, MSB, Rest/binary>>; @@ -462,116 +769,228 @@ rand_seed(Seed) when is_binary(Seed) -> rand_seed_nif(_Seed) -> ?nif_stub. --spec mod_pow(binary()|integer(), binary()|integer(), binary()|integer()) -> binary() | error. -mod_pow(Base, Exponent, Prime) -> - case mod_exp_nif(ensure_int_as_bin(Base), ensure_int_as_bin(Exponent), ensure_int_as_bin(Prime), 0) of - <<0>> -> error; - R -> R - end. +%%%================================================================ +%%% +%%% Sign/verify +%%% +%%%================================================================ +-type pk_sign_verify_algs() :: rsa | dss | ecdsa . -verify(Algorithm, Type, Data, Signature, Key) -> - verify(Algorithm, Type, Data, Signature, Key, []). +-type pk_sign_verify_opts() :: [ rsa_sign_verify_opt() ] . + +-type rsa_sign_verify_opt() :: {rsa_padding, rsa_sign_verify_padding()} + | {rsa_pss_saltlen, integer()} . + +-type rsa_sign_verify_padding() :: rsa_pkcs1_padding | rsa_pkcs1_pss_padding + | rsa_x931_padding | rsa_no_padding + . -%% Backwards compatible -verify(Algorithm = dss, none, Digest, Signature, Key, Options) -> - verify(Algorithm, sha, {digest, Digest}, Signature, Key, Options); -verify(Algorithm, Type, Data, Signature, Key, Options) -> - case pkey_verify_nif(Algorithm, Type, Data, Signature, format_pkey(Algorithm, Key), Options) of - notsup -> erlang:error(notsup); - Boolean -> Boolean - end. +%%%---------------------------------------------------------------- +%%% Sign + +-spec sign(Algorithm, DigestType, Msg, Key) + -> Signature + when Algorithm :: pk_sign_verify_algs(), + DigestType :: rsa_digest_type() + | dss_digest_type() + | ecdsa_digest_type(), + Msg :: binary() | {digest,binary()}, + Key :: rsa_private() + | dss_private() + | [ecdsa_private()|ecdsa_params()] + | engine_key_ref(), + Signature :: binary() . sign(Algorithm, Type, Data, Key) -> sign(Algorithm, Type, Data, Key, []). -%% Backwards compatible -sign(Algorithm = dss, none, Digest, Key, Options) -> - sign(Algorithm, sha, {digest, Digest}, Key, Options); -sign(Algorithm, Type, Data, Key, Options) -> + +-spec sign(Algorithm, DigestType, Msg, Key, Options) + -> Signature + when Algorithm :: pk_sign_verify_algs(), + DigestType :: rsa_digest_type() + | dss_digest_type() + | ecdsa_digest_type() + | none, + Msg :: binary() | {digest,binary()}, + Key :: rsa_private() + | dss_private() + | [ecdsa_private() | ecdsa_params()] + | engine_key_ref(), + Options :: pk_sign_verify_opts(), + Signature :: binary() . + +sign(Algorithm0, Type0, Data, Key, Options) -> + {Algorithm, Type} = sign_verify_compatibility(Algorithm0, Type0, Data), case pkey_sign_nif(Algorithm, Type, Data, format_pkey(Algorithm, Key), Options) of error -> erlang:error(badkey, [Algorithm, Type, Data, Key, Options]); notsup -> erlang:error(notsup); Signature -> Signature end. +pkey_sign_nif(_Algorithm, _Type, _Digest, _Key, _Options) -> ?nif_stub. +%%%---------------------------------------------------------------- +%%% Verify + +-spec verify(Algorithm, DigestType, Msg, Signature, Key) + -> Result + when Algorithm :: pk_sign_verify_algs(), + DigestType :: rsa_digest_type() + | dss_digest_type() + | ecdsa_digest_type(), + Msg :: binary() | {digest,binary()}, + Signature :: binary(), + Key :: rsa_private() + | dss_private() + | [ecdsa_private() | ecdsa_params()] + | engine_key_ref(), + Result :: boolean(). --type key_id() :: string() | binary() . --type password() :: string() | binary() . - --type engine_key_ref() :: #{engine := engine_ref(), - key_id := key_id(), - password => password(), - term() => term() - }. - --type pk_algs() :: rsa | ecdsa | dss . --type pk_key() :: engine_key_ref() | [integer() | binary()] . --type pk_opt() :: list() | rsa_padding() . - --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(). +verify(Algorithm, Type, Data, Signature, Key) -> + verify(Algorithm, Type, Data, Signature, Key, []). -public_encrypt(Algorithm, In, Key, Options) when is_list(Options) -> - case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, false, true) of - error -> erlang:error(encrypt_failed, [Algorithm, In, Key, Options]); +-spec verify(Algorithm, DigestType, Msg, Signature, Key, Options) + -> Result + when Algorithm :: pk_sign_verify_algs(), + DigestType :: rsa_digest_type() + | dss_digest_type() + | ecdsa_digest_type(), + Msg :: binary() | {digest,binary()}, + Signature :: binary(), + Key :: rsa_public() + | dss_public() + | [ecdsa_public() | ecdsa_params()] + | engine_key_ref(), + Options :: pk_sign_verify_opts(), + Result :: boolean(). + +verify(Algorithm0, Type0, Data, Signature, Key, Options) -> + {Algorithm, Type} = sign_verify_compatibility(Algorithm0, Type0, Data), + case pkey_verify_nif(Algorithm, Type, Data, Signature, format_pkey(Algorithm, Key), Options) of notsup -> erlang:error(notsup); - Out -> Out - end; -%% Backwards compatible -public_encrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) -> - public_encrypt(Algorithm, In, Key, [{rsa_padding, Padding}]). + Boolean -> Boolean + end. -private_decrypt(Algorithm, In, Key, Options) when is_list(Options) -> - case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, true, false) of - error -> erlang:error(decrypt_failed, [Algorithm, In, Key, Options]); - notsup -> erlang:error(notsup); - Out -> Out - end; -%% Backwards compatible -private_decrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) -> - private_decrypt(Algorithm, In, Key, [{rsa_padding, Padding}]). +pkey_verify_nif(_Algorithm, _Type, _Data, _Signature, _Key, _Options) -> ?nif_stub. -private_encrypt(Algorithm, In, Key, Options) when is_list(Options) -> - case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, true, true) of - error -> erlang:error(encrypt_failed, [Algorithm, In, Key, Options]); - notsup -> erlang:error(notsup); - Out -> Out - end; -%% Backwards compatible -private_encrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) -> - private_encrypt(Algorithm, In, Key, [{rsa_padding, Padding}]). +%% Backwards compatible: +sign_verify_compatibility(dss, none, Digest) -> + {sha, {digest, Digest}}; +sign_verify_compatibility(Algorithm0, Type0, _Digest) -> + {Algorithm0, Type0}. -public_decrypt(Algorithm, In, Key, Options) when is_list(Options) -> - case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, false, false) of - error -> erlang:error(decrypt_failed, [Algorithm, In, Key, Options]); +%%%================================================================ +%%% +%%% Public/private encrypt/decrypt +%%% +%%% Only rsa works so far (although ecdsa | dss should do it) +%%%================================================================ +-type pk_encrypt_decrypt_algs() :: rsa . + +-type pk_encrypt_decrypt_opts() :: [rsa_opt()] | rsa_compat_opts(). + +-type rsa_compat_opts() :: [{rsa_pad, rsa_padding()}] + | rsa_padding() . + +-type rsa_padding() :: rsa_pkcs1_padding + | rsa_pkcs1_oaep_padding + | rsa_sslv23_padding + | rsa_x931_padding + | rsa_no_padding. + +-type rsa_opt() :: {rsa_padding, rsa_padding()} + | {signature_md, atom()} + | {rsa_mgf1_md, sha} + | {rsa_oaep_label, binary()} + | {rsa_oaep_md, sha} . + +%%%---- Encrypt with public key + +-spec public_encrypt(Algorithm, PlainText, PublicKey, Options) -> + CipherText when Algorithm :: pk_encrypt_decrypt_algs(), + PlainText :: binary(), + PublicKey :: rsa_public() | engine_key_ref(), + Options :: pk_encrypt_decrypt_opts(), + CipherText :: binary(). +public_encrypt(Algorithm, PlainText, PublicKey, Options) -> + pkey_crypt(Algorithm, PlainText, PublicKey, Options, false, true). + +%%%---- Decrypt with private key + +-spec private_decrypt(Algorithm, CipherText, PrivateKey, Options) -> + PlainText when Algorithm :: pk_encrypt_decrypt_algs(), + CipherText :: binary(), + PrivateKey :: rsa_private() | engine_key_ref(), + Options :: pk_encrypt_decrypt_opts(), + PlainText :: binary() . +private_decrypt(Algorithm, CipherText, PrivateKey, Options) -> + pkey_crypt(Algorithm, CipherText, PrivateKey, Options, true, false). + +%%%---- Encrypt with private key + +-spec private_encrypt(Algorithm, PlainText, PrivateKey, Options) -> + CipherText when Algorithm :: pk_encrypt_decrypt_algs(), + PlainText :: binary(), + PrivateKey :: rsa_private() | engine_key_ref(), + Options :: pk_encrypt_decrypt_opts(), + CipherText :: binary(). +private_encrypt(Algorithm, PlainText, PrivateKey, Options) -> + pkey_crypt(Algorithm, PlainText, PrivateKey, Options, true, true). + +%%%---- Decrypt with public key + +-spec public_decrypt(Algorithm, CipherText, PublicKey, Options) -> + PlainText when Algorithm :: pk_encrypt_decrypt_algs(), + CipherText :: binary(), + PublicKey :: rsa_public() | engine_key_ref(), + Options :: pk_encrypt_decrypt_opts(), + PlainText :: binary() . +public_decrypt(Algorithm, CipherText, PublicKey, Options) -> + pkey_crypt(Algorithm, CipherText, PublicKey, Options, false, false). + +%%%---- Call the nif, but fix a compatibility issue first + +%% Backwards compatible (rsa_pad -> rsa_padding is handled by the pkey_crypt_nif): +pkey_crypt(rsa, Text, Key, Padding, PubPriv, EncDec) when is_atom(Padding) -> + pkey_crypt(rsa, Text, Key, [{rsa_padding, Padding}], PubPriv, EncDec); + +pkey_crypt(Alg, Text, Key, Options, PubPriv, EncDec) -> + case pkey_crypt_nif(Alg, Text, format_pkey(Alg,Key), Options, PubPriv, EncDec) of + error when EncDec==true -> erlang:error(encrypt_failed, [Alg, Text, Key, Options]); + error when EncDec==false -> erlang:error(decrypt_failed, [Alg, Text, Key, Options]); notsup -> erlang:error(notsup); Out -> Out - end; -%% Backwards compatible -public_decrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) -> - public_decrypt(Algorithm, In, Key, [{rsa_padding, Padding}]). - - -%% -%% XOR - xor to iolists and return a binary -%% NB doesn't check that they are the same size, just concatenates -%% them and sends them to the driver -%% --spec exor(iodata(), iodata()) -> binary(). + end. -exor(Bin1, Bin2) -> - Data1 = iolist_to_binary(Bin1), - Data2 = iolist_to_binary(Bin2), - MaxBytes = max_bytes(), - exor(Data1, Data2, erlang:byte_size(Data1), MaxBytes, []). +pkey_crypt_nif(_Algorithm, _In, _Key, _Options, _IsPrivate, _IsEncrypt) -> ?nif_stub. +%%%================================================================ +%%% +%%% +%%% +%%%================================================================ + +-spec generate_key(Type, Params) + -> {PublicKey, PrivKeyOut} + when Type :: dh | ecdh | rsa | srp, + PublicKey :: dh_public() | ecdh_public() | rsa_public() | srp_public(), + PrivKeyOut :: dh_private() | ecdh_private() | rsa_private() | {srp_public(),srp_private()}, + Params :: dh_params() | ecdh_params() | rsa_params() | srp_gen_params() + . generate_key(Type, Params) -> generate_key(Type, Params, undefined). +-spec generate_key(Type, Params, PrivKeyIn) + -> {PublicKey, PrivKeyOut} + when Type :: dh | ecdh | rsa | srp, + PublicKey :: dh_public() | ecdh_public() | rsa_public() | srp_public(), + PrivKeyIn :: undefined | dh_private() | ecdh_private() | rsa_private() | {srp_public(),srp_private()}, + PrivKeyOut :: dh_private() | ecdh_private() | rsa_private() | {srp_public(),srp_private()}, + Params :: dh_params() | ecdh_params() | rsa_params() | srp_comp_params() + . + generate_key(dh, DHParameters0, PrivateKey) -> {DHParameters, Len} = case DHParameters0 of @@ -618,6 +1037,14 @@ generate_key(ecdh, Curve, PrivKey) -> evp_generate_key_nif(_Curve) -> ?nif_stub. +-spec compute_key(Type, OthersPublicKey, MyPrivateKey, Params) + -> SharedSecret + when Type :: dh | ecdh | srp, + SharedSecret :: binary(), + OthersPublicKey :: dh_public() | ecdh_public() | srp_public(), + MyPrivateKey :: dh_private() | ecdh_private() | {srp_public(),srp_private()}, + Params :: dh_params() | ecdh_params() | srp_comp_params() + . compute_key(dh, OthersPublicKey, MyPrivateKey, DHParameters) -> case dh_compute_key_nif(ensure_int_as_bin(OthersPublicKey), @@ -670,9 +1097,59 @@ compute_key(ecdh, Others, My, Curve) -> evp_compute_key_nif(_Curve, _OthersBin, _MyBin) -> ?nif_stub. -%%====================================================================== -%% Engine functions -%%====================================================================== + +%%%================================================================ +%%% +%%% XOR - xor to iolists and return a binary +%%% NB doesn't check that they are the same size, just concatenates +%%% them and sends them to the driver +%%% +%%%================================================================ + +-spec exor(iodata(), iodata()) -> binary(). + +exor(Bin1, Bin2) -> + Data1 = iolist_to_binary(Bin1), + Data2 = iolist_to_binary(Bin2), + MaxBytes = max_bytes(), + exor(Data1, Data2, erlang:byte_size(Data1), MaxBytes, []). + + +%%%================================================================ +%%% +%%% Exponentiation modulo +%%% +%%%================================================================ + +-spec mod_pow(N, P, M) -> Result when N :: binary() | integer(), + P :: binary() | integer(), + M :: binary() | integer(), + Result :: binary() | error . +mod_pow(Base, Exponent, Prime) -> + case mod_exp_nif(ensure_int_as_bin(Base), ensure_int_as_bin(Exponent), ensure_int_as_bin(Prime), 0) of + <<0>> -> error; + R -> R + end. + +%%%====================================================================== +%%% +%%% Engine functions +%%% +%%%====================================================================== + +%%%---- Refering to keys stored in an engine: +-type key_id() :: string() | binary() . +-type password() :: string() | binary() . + +-type engine_key_ref() :: #{engine := engine_ref(), + key_id := key_id(), + password => password(), + term() => term() + }. + +%%%---- Commands: +-type engine_cmnd() :: {unicode:chardata(), unicode:chardata()}. + %%---------------------------------------------------------------------- %% Function: engine_get_all_methods/0 %%---------------------------------------------------------------------- @@ -684,18 +1161,18 @@ evp_compute_key_nif(_Curve, _OthersBin, _MyBin) -> ?nif_stub. -type engine_ref() :: term(). --spec engine_get_all_methods() -> - [engine_method_type()]. +-spec engine_get_all_methods() -> Result when Result :: [engine_method_type()]. engine_get_all_methods() -> notsup_to_error(engine_get_all_methods_nif()). %%---------------------------------------------------------------------- %% Function: engine_load/3 %%---------------------------------------------------------------------- --spec engine_load(EngineId::unicode:chardata(), - PreCmds::[{unicode:chardata(), unicode:chardata()}], - PostCmds::[{unicode:chardata(), unicode:chardata()}]) -> - {ok, Engine::engine_ref()} | {error, Reason::term()}. +-spec engine_load(EngineId, PreCmds, PostCmds) -> + Result when EngineId::unicode:chardata(), + PreCmds::[engine_cmnd()], + PostCmds::[engine_cmnd()], + Result :: {ok, Engine::engine_ref()} | {error, Reason::term()}. engine_load(EngineId, PreCmds, PostCmds) when is_list(PreCmds), is_list(PostCmds) -> engine_load(EngineId, PreCmds, PostCmds, engine_get_all_methods()). @@ -703,11 +1180,12 @@ engine_load(EngineId, PreCmds, PostCmds) when is_list(PreCmds), %%---------------------------------------------------------------------- %% Function: engine_load/4 %%---------------------------------------------------------------------- --spec engine_load(EngineId::unicode:chardata(), - PreCmds::[{unicode:chardata(), unicode:chardata()}], - PostCmds::[{unicode:chardata(), unicode:chardata()}], - EngineMethods::[engine_method_type()]) -> - {ok, Engine::term()} | {error, Reason::term()}. +-spec engine_load(EngineId, PreCmds, PostCmds, EngineMethods) -> + Result when EngineId::unicode:chardata(), + PreCmds::[engine_cmnd()], + PostCmds::[engine_cmnd()], + EngineMethods::[engine_method_type()], + Result :: {ok, Engine::engine_ref()} | {error, Reason::term()}. engine_load(EngineId, PreCmds, PostCmds, EngineMethods) when is_list(PreCmds), is_list(PostCmds) -> try @@ -752,13 +1230,14 @@ engine_load_2(Engine, PostCmds, EngineMethods) -> %%---------------------------------------------------------------------- %% Function: engine_unload/1 %%---------------------------------------------------------------------- --spec engine_unload(Engine::term()) -> - ok | {error, Reason::term()}. +-spec engine_unload(Engine) -> Result when Engine :: engine_ref(), + Result :: ok | {error, Reason::term()}. engine_unload(Engine) -> engine_unload(Engine, engine_get_all_methods()). --spec engine_unload(Engine::term(), EngineMethods::[engine_method_type()]) -> - ok | {error, Reason::term()}. +-spec engine_unload(Engine, EngineMethods) -> Result when Engine :: engine_ref(), + EngineMethods :: [engine_method_type()], + Result :: ok | {error, Reason::term()}. engine_unload(Engine, EngineMethods) -> try [ok = engine_nif_wrapper(engine_unregister_nif(Engine, engine_method_atom_to_int(Method))) || @@ -775,6 +1254,8 @@ engine_unload(Engine, EngineMethods) -> %%---------------------------------------------------------------------- %% Function: engine_by_id/1 %%---------------------------------------------------------------------- +-spec engine_by_id(EngineId) -> Result when EngineId :: unicode:chardata(), + Result :: {ok, Engine::engine_ref()} | {error, Reason::term()} . engine_by_id(EngineId) -> try notsup_to_error(engine_by_id_nif(ensure_bin_chardata(EngineId))) @@ -786,32 +1267,39 @@ engine_by_id(EngineId) -> %%---------------------------------------------------------------------- %% Function: engine_add/1 %%---------------------------------------------------------------------- +-spec engine_add(Engine) -> Result when Engine :: engine_ref(), + Result :: ok | {error, Reason::term()} . engine_add(Engine) -> notsup_to_error(engine_add_nif(Engine)). %%---------------------------------------------------------------------- %% Function: engine_remove/1 %%---------------------------------------------------------------------- +-spec engine_remove(Engine) -> Result when Engine :: engine_ref(), + Result :: ok | {error, Reason::term()} . engine_remove(Engine) -> notsup_to_error(engine_remove_nif(Engine)). %%---------------------------------------------------------------------- %% Function: engine_get_id/1 %%---------------------------------------------------------------------- +-spec engine_get_id(Engine) -> EngineId when Engine :: engine_ref(), + EngineId :: unicode:chardata(). engine_get_id(Engine) -> notsup_to_error(engine_get_id_nif(Engine)). %%---------------------------------------------------------------------- %% Function: engine_get_name/1 %%---------------------------------------------------------------------- +-spec engine_get_name(Engine) -> EngineName when Engine :: engine_ref(), + EngineName :: unicode:chardata(). engine_get_name(Engine) -> notsup_to_error(engine_get_name_nif(Engine)). %%---------------------------------------------------------------------- %% Function: engine_list/0 %%---------------------------------------------------------------------- --spec engine_list() -> - [EngineId::binary()]. +-spec engine_list() -> Result when Result :: [EngineId::unicode:chardata()]. engine_list() -> case notsup_to_error(engine_get_first_nif()) of {ok, <<>>} -> @@ -841,21 +1329,23 @@ engine_list(Engine0, IdList) -> %%---------------------------------------------------------------------- %% Function: engine_ctrl_cmd_string/3 %%---------------------------------------------------------------------- --spec engine_ctrl_cmd_string(Engine::term(), - CmdName::unicode:chardata(), - CmdArg::unicode:chardata()) -> - ok | {error, Reason::term()}. +-spec engine_ctrl_cmd_string(Engine, CmdName, CmdArg) -> + Result when Engine::term(), + CmdName::unicode:chardata(), + CmdArg::unicode:chardata(), + Result :: ok | {error, Reason::term()}. engine_ctrl_cmd_string(Engine, CmdName, CmdArg) -> engine_ctrl_cmd_string(Engine, CmdName, CmdArg, false). %%---------------------------------------------------------------------- %% Function: engine_ctrl_cmd_string/4 %%---------------------------------------------------------------------- --spec engine_ctrl_cmd_string(Engine::term(), - CmdName::unicode:chardata(), - CmdArg::unicode:chardata(), - Optional::boolean()) -> - ok | {error, Reason::term()}. +-spec engine_ctrl_cmd_string(Engine, CmdName, CmdArg, Optional) -> + Result when Engine::term(), + CmdName::unicode:chardata(), + CmdArg::unicode:chardata(), + Optional::boolean(), + Result :: ok | {error, Reason::term()}. engine_ctrl_cmd_string(Engine, CmdName, CmdArg, Optional) -> case engine_ctrl_cmd_strings_nif(Engine, ensure_bin_cmds([{CmdName, CmdArg}]), @@ -872,6 +1362,10 @@ engine_ctrl_cmd_string(Engine, CmdName, CmdArg, Optional) -> %% Function: ensure_engine_loaded/2 %% Special version of load that only uses dynamic engine to load %%---------------------------------------------------------------------- +-spec ensure_engine_loaded(EngineId, LibPath) -> + Result when EngineId :: unicode:chardata(), + LibPath :: unicode:chardata(), + Result :: {ok, Engine::engine_ref()} | {error, Reason::term()}. ensure_engine_loaded(EngineId, LibPath) -> ensure_engine_loaded(EngineId, LibPath, engine_get_all_methods()). @@ -879,6 +1373,11 @@ ensure_engine_loaded(EngineId, LibPath) -> %% Function: ensure_engine_loaded/3 %% Special version of load that only uses dynamic engine to load %%---------------------------------------------------------------------- +-spec ensure_engine_loaded(EngineId, LibPath, EngineMethods) -> + Result when EngineId :: unicode:chardata(), + LibPath :: unicode:chardata(), + EngineMethods :: [engine_method_type()], + Result :: {ok, Engine::engine_ref()} | {error, Reason::term()}. ensure_engine_loaded(EngineId, LibPath, EngineMethods) -> try List = crypto:engine_list(), @@ -930,12 +1429,18 @@ ensure_engine_loaded_2(Engine, Methods) -> %%---------------------------------------------------------------------- %% Function: ensure_engine_unloaded/1 %%---------------------------------------------------------------------- +-spec ensure_engine_unloaded(Engine) -> Result when Engine :: engine_ref(), + Result :: ok | {error, Reason::term()}. ensure_engine_unloaded(Engine) -> ensure_engine_unloaded(Engine, engine_get_all_methods()). %%---------------------------------------------------------------------- %% Function: ensure_engine_unloaded/2 %%---------------------------------------------------------------------- +-spec ensure_engine_unloaded(Engine, EngineMethods) -> + Result when Engine :: engine_ref(), + EngineMethods :: [engine_method_type()], + Result :: ok | {error, Reason::term()}. ensure_engine_unloaded(Engine, EngineMethods) -> case engine_remove(Engine) of ok -> @@ -1010,9 +1515,13 @@ path2bin(Path) when is_list(Path) -> Bin end. -%%-------------------------------------------------------------------- +%%%================================================================ +%%%================================================================ +%%% %%% Internal functions -%%-------------------------------------------------------------------- +%%% +%%%================================================================ + max_bytes() -> ?MAX_BYTES_TO_NIF. @@ -1151,14 +1660,6 @@ do_stream_decrypt({chacha20, State0}, Data) -> %% %% AES - in counter mode (CTR) with state maintained for multi-call streaming %% --type ctr_state() :: { iodata(), binary(), binary(), integer() } | binary(). - --spec aes_ctr_stream_init(iodata(), binary()) -> ctr_state(). --spec aes_ctr_stream_encrypt(ctr_state(), binary()) -> - { ctr_state(), binary() }. --spec aes_ctr_stream_decrypt(ctr_state(), binary()) -> - { ctr_state(), binary() }. - aes_ctr_stream_init(_Key, _IVec) -> ?nif_stub. aes_ctr_stream_encrypt(_State, _Data) -> ?nif_stub. aes_ctr_stream_decrypt(_State, _Cipher) -> ?nif_stub. @@ -1172,11 +1673,6 @@ rc4_encrypt_with_state(_State, _Data) -> ?nif_stub. %% %% CHACHA20 - stream cipher %% --type chacha20_state() :: term(). --spec chacha20_stream_init(iodata(), binary()) -> chacha20_state(). --spec chacha20_stream_encrypt(chacha20_state(), binary()) -> {chacha20_state(), binary()}. --spec chacha20_stream_decrypt(chacha20_state(), binary()) -> {chacha20_state(), binary()}. - chacha20_stream_init(_Key, _IVec) -> ?nif_stub. chacha20_stream_encrypt(_State, _Data) -> ?nif_stub. chacha20_stream_decrypt(_State, _Data) -> ?nif_stub. @@ -1247,11 +1743,6 @@ srp_user_secret_nif(_A, _U, _B, _Multiplier, _Generator, _Exponent, _Prime) -> ? srp_value_B_nif(_Multiplier, _Verifier, _Generator, _Exponent, _Prime) -> ?nif_stub. -%% Digital signatures -------------------------------------------------------------------- - -pkey_sign_nif(_Algorithm, _Type, _Digest, _Key, _Options) -> ?nif_stub. -pkey_verify_nif(_Algorithm, _Type, _Data, _Signature, _Key, _Options) -> ?nif_stub. - %% Public Keys -------------------------------------------------------------------- %% RSA Rivest-Shamir-Adleman functions %% @@ -1273,13 +1764,20 @@ ec_key_generate(_Curve, _Key) -> ?nif_stub. ecdh_compute_key_nif(_Others, _Curve, _My) -> ?nif_stub. +-spec ec_curves() -> [EllipticCurve] when EllipticCurve :: ec_named_curve() | edwards_curve() . + ec_curves() -> crypto_ec_curves:curves(). +-spec ec_curve(CurveName) -> ExplicitCurve when CurveName :: ec_named_curve(), + ExplicitCurve :: ec_explicit_curve() . ec_curve(X) -> crypto_ec_curves:curve(X). +-spec privkey_to_pubkey(Type, EnginePrivateKeyRef) -> PublicKey when Type :: rsa | dss, + EnginePrivateKeyRef :: engine_key_ref(), + PublicKey :: rsa_public() | dss_public() . privkey_to_pubkey(Alg, EngineMap) when Alg == rsa; Alg == dss; Alg == ecdsa -> try privkey_to_pubkey_nif(Alg, format_pkey(Alg,EngineMap)) of @@ -1305,10 +1803,16 @@ term_to_nif_prime({prime_field, Prime}) -> {prime_field, ensure_int_as_bin(Prime)}; term_to_nif_prime(PrimeField) -> PrimeField. + term_to_nif_curve({A, B, Seed}) -> {ensure_int_as_bin(A), ensure_int_as_bin(B), Seed}. + nif_curve_params({PrimeField, Curve, BasePoint, Order, CoFactor}) -> - {term_to_nif_prime(PrimeField), term_to_nif_curve(Curve), ensure_int_as_bin(BasePoint), ensure_int_as_bin(Order), ensure_int_as_bin(CoFactor)}; + {term_to_nif_prime(PrimeField), + term_to_nif_curve(Curve), + ensure_int_as_bin(BasePoint), + ensure_int_as_bin(Order), + ensure_int_as_bin(CoFactor)}; nif_curve_params(Curve) when is_atom(Curve) -> %% named curve case Curve of @@ -1348,6 +1852,7 @@ int_to_bin_neg(-1, Ds=[MSB|_]) when MSB >= 16#80 -> int_to_bin_neg(X,Ds) -> int_to_bin_neg(X bsr 8, [(X band 255)|Ds]). +-spec bytes_to_integer(binary()) -> integer() . bytes_to_integer(Bin) -> bin_to_int(Bin). @@ -1395,9 +1900,6 @@ format_pwd(M) -> M. %%-------------------------------------------------------------------- %% --type rsa_padding() :: 'rsa_pkcs1_padding' | 'rsa_pkcs1_oaep_padding' | 'rsa_no_padding'. - -pkey_crypt_nif(_Algorithm, _In, _Key, _Options, _IsPrivate, _IsEncrypt) -> ?nif_stub. %% large integer in a binary with 32bit length %% MP representaion (SSH2) |