diff options
Diffstat (limited to 'lib/public_key/src/public_key.erl')
-rw-r--r-- | lib/public_key/src/public_key.erl | 163 |
1 files changed, 75 insertions, 88 deletions
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl index 41ebaef76d..06bffeea76 100644 --- a/lib/public_key/src/public_key.erl +++ b/lib/public_key/src/public_key.erl @@ -34,7 +34,8 @@ decrypt_private/2, decrypt_private/3, encrypt_public/2, encrypt_public/3, decrypt_public/2, decrypt_public/3, - sign/3, verify/4, generate_key/1, generate_key/2, + sign/3, verify/4, + generate_key/1, compute_key/2, compute_key/3, pkix_sign/2, pkix_verify/2, pkix_sign_types/1, @@ -326,18 +327,14 @@ encrypt_private(PlainText, %%-------------------------------------------------------------------- -spec generate_key(#'ECPrivateKey'{} | {curve, Name ::atom()} | #'DHParameter'{}) -> {'ECKey', term()} | {binary(), binary()}. --spec generate_key(#'ECPoint'{}, #'OTPECParameters'{} | {namedCurve, oid()}) -> {'ECKey', term()}. - %% Description: Generates new key(s) %%-------------------------------------------------------------------- -generate_key(#'ECPrivateKey'{} = Key) -> - ec_private_key_to_eckey(Key); - generate_key({curve, Name}) -> %% TODO: Better crypto API ECDHKey = crypto:ec_key_new(Name), crypto:ec_key_generate(ECDHKey), - crypto:ec_key_to_term(ECDHKey); + Term = crypto:ec_key_to_term(ECDHKey), + ec_key(Term); generate_key(#'DHParameter'{prime = P, base = G}) -> crypto:dh_generate_key([crypto:mpint(P), crypto:mpint(G)]); @@ -350,27 +347,33 @@ generate_key({srp, Version, Generator, Prime}) when is_binary(Generator), is_bin crypto:srp_generate_key(Generator, Prime, Version); generate_key({srp, Version, Verifier, Generator, Prime}) when is_binary(Verifier), is_binary(Generator), is_binary(Prime) -> - crypto:srp_generate_key(Verifier, Generator, Prime, Version). + crypto:srp_generate_key(Verifier, Generator, Prime, Version); -generate_key(#'ECPoint'{} = Key, Params) -> +generate_key(Params) -> %% TODO: Better crypto API - ECKey = ec_public_key_to_eckey({Key,Params}), - ECClntKey = crypto:term_to_ec_key(ECKey), + Name = ec_curve_spec(Params), + ECClntKey = crypto:ec_key_new(Name), + %% ECDHKey = format_ecdh_key(Params), + %% ECClntKey = crypto:term_to_ec_key(ECDHKey), crypto:ec_key_generate(ECClntKey), - crypto:ec_key_to_term(ECClntKey). + Term = crypto:ec_key_to_term(ECClntKey), + ec_key(Term, Params). %%-------------------------------------------------------------------- --spec compute_key(#'ECPoint'{}, {'ECKey', binary()}) -> binary(). +-spec compute_key(#'ECPoint'{}, #'ECPrivateKey'{} | crypto:ecdh_key()) -> binary(). -spec compute_key(OthersKey ::binary(), MyKey::binary() | {binary(), binary()}, {dh, binary(), binary()} | - {srp, atom(), binary(), binary()} | - {srp, string(), string(), binary(), atom(), binary(), binary()}) + {srp,'3'|'6'| '6a' , binary(), binary()} | + {srp, string(), string(), binary(), '3'|'6'| '6a', binary(), binary()}) -> binary(). %% Description: Compute shared secret %%-------------------------------------------------------------------- -compute_key(#'ECPoint'{point = Point}, Term) -> +compute_key(PubKey, #'ECPrivateKey'{} = PrivateKey) -> + compute_key(PubKey, format_ecdh_key(PrivateKey)); + +compute_key(#'ECPoint'{point = Point}, ECDHKeys) -> %% TODO: Better crypto API - ECKey = crypto:term_to_ec_key(Term), + ECKey = crypto:term_to_ec_key(ECDHKeys), crypto:ecdh_compute_key(ECKey, Point). compute_key(OthersKey, MyKey, {dh, Prime, Base}) when is_binary(OthersKey), @@ -428,30 +431,16 @@ pkix_sign_types(?'ecdsa-with-SHA512') -> dsa_private_key()) -> Signature :: binary(). %% Description: Create digital signature. %%-------------------------------------------------------------------- -sign({digest,_}=Digest, DigestType, Key = #'RSAPrivateKey'{}) -> - crypto:sign(rsa, DigestType, Digest, format_rsa_private_key(Key)); - -sign(PlainText, DigestType, Key = #'RSAPrivateKey'{}) -> - crypto:sign(rsa, DigestType, PlainText, format_rsa_private_key(Key)); - -sign({digest,_}=Digest, sha, #'DSAPrivateKey'{p = P, q = Q, g = G, x = X}) -> - crypto:sign(dss, sha, Digest, [P, Q, G, X]); +sign(DigestOrPlainText, DigestType, Key = #'RSAPrivateKey'{}) -> + crypto:sign(rsa, DigestType, DigestOrPlainText, format_rsa_private_key(Key)); -sign(PlainText, sha, #'DSAPrivateKey'{p = P, q = Q, g = G, x = X}) -> - crypto:sign(dss, sha, PlainText, [P, Q, G, X]); +sign(DigestOrPlainText, sha, #'DSAPrivateKey'{p = P, q = Q, g = G, x = X}) -> + crypto:sign(dss, sha, DigestOrPlainText, [P, Q, G, X]); -sign(Digest, DigestType, Key = {?'id-ecPublicKey', _, _}) -> - sign(Digest, DigestType, ec_public_key_to_eckey(Key)); - -sign({digest,_} = Digest, DigestType, Key = #'ECPrivateKey'{}) -> - ECDHKey = ec_private_key_to_eckey(Key), - ECKey = crypto:term_to_ec_key(ECDHKey), - crypto:sign(ecdsa, DigestType, Digest, ECKey); - -sign(PlainText, DigestType, Key = #'ECPrivateKey'{}) -> - ECDHKey = ec_private_key_to_eckey(Key), +sign(DigestOrPlainText, DigestType, Key = #'ECPrivateKey'{}) -> + ECDHKey = format_ecdh_key(Key), ECKey = crypto:term_to_ec_key(ECDHKey), - crypto:sign(ecdsa, DigestType, PlainText, ECKey); + crypto:sign(ecdsa, DigestType, DigestOrPlainText, ECKey); %% Backwards compatible sign(Digest, none, #'DSAPrivateKey'{} = Key) -> @@ -463,36 +452,28 @@ sign(Digest, none, #'DSAPrivateKey'{} = Key) -> | dsa_public_key()) -> boolean(). %% Description: Verifies a digital signature. %%-------------------------------------------------------------------- -verify({digest,_} = Digest, DigestType, Signature, - #'RSAPublicKey'{modulus = Mod, publicExponent = Exp}) -> - crypto:verify(rsa, DigestType, Digest, Signature, [Exp, Mod]); - -verify(PlainText, DigestType, Signature, +verify(DigestOrPlainText, DigestType, Signature, #'RSAPublicKey'{modulus = Mod, publicExponent = Exp}) -> - crypto:verify(rsa, DigestType, PlainText, Signature, + crypto:verify(rsa, DigestType, DigestOrPlainText, Signature, [Exp, Mod]); -verify({digest,_} = Digest, sha = DigestType, Signature, {Key, #'Dss-Parms'{p = P, q = Q, g = G}}) - when is_integer(Key), is_binary(Signature) -> - crypto:verify(dss, DigestType, Digest, Signature, [P, Q, G, Key]); - verify(Digest, DigestType, Signature, Key = #'ECPrivateKey'{}) -> - ECDHKey = ec_private_key_to_eckey(Key), + ECDHKey = format_ecdh_key(Key), ECKey = crypto:term_to_ec_key(ECDHKey), crypto:verify(ecdsa, DigestType, Digest, Signature, ECKey); -verify(Digest, DigestType, Signature, Key = {#'ECPoint'{}, _}) -> - ECDHKey = ec_public_key_to_eckey(Key), +verify(DigestOrPlaintext, DigestType, Signature, Key = {#'ECPoint'{}, _}) -> + ECDHKey = format_ecdh_key(Key), ECKey = crypto:term_to_ec_key(ECDHKey), - crypto:verify(ecdsa, DigestType, Digest, Signature, ECKey); + crypto:verify(ecdsa, DigestType, DigestOrPlaintext, Signature, ECKey); %% Backwards compatibility verify(Digest, none, Signature, {_, #'Dss-Parms'{}} = Key ) -> verify({digest,Digest}, sha, Signature, Key); -verify(PlainText, sha = DigestType, Signature, {Key, #'Dss-Parms'{p = P, q = Q, g = G}}) - when is_integer(Key), is_binary(PlainText), is_binary(Signature) -> - crypto:verify(dss, DigestType, PlainText, Signature, [P, Q, G, Key]). +verify(DigestOrPlainText, sha = DigestType, Signature, {Key, #'Dss-Parms'{p = P, q = Q, g = G}}) + when is_integer(Key), is_binary(Signature) -> + crypto:verify(dss, DigestType, DigestOrPlainText, Signature, [P, Q, G, Key]). %%-------------------------------------------------------------------- -spec pkix_sign(#'OTPTBSCertificate'{}, @@ -939,40 +920,46 @@ format_rsa_private_key(#'RSAPrivateKey'{modulus = N, publicExponent = E, is_integer(D) -> [E, N, D]. -%% -%% Description: convert a ECPrivate key into resource Key -%%-------------------------------------------------------------------- +format_ecdh_key(#'ECPrivateKey'{privateKey = PrivKey, + parameters = Param, + publicKey = _}) -> + ECCurve = ec_curve_spec(Param), + {ECCurve, list2int(PrivKey), undefined}; + +format_ecdh_key({#'ECPoint'{point = Point}, Param}) -> + ECCurve = ec_curve_spec(Param), + {ECCurve, undefined, Point}. + +ec_curve_spec( #'OTPECParameters'{fieldID = FieldId, curve = PCurve, base = Base, order = Order, cofactor = CoFactor }) -> + Field = {pubkey_cert_records:supportedCurvesTypes(FieldId#'OTPFieldID'.fieldType), + FieldId#'OTPFieldID'.parameters}, + Curve = {list2int(PCurve#'Curve'.a), list2int(PCurve#'Curve'.b), none}, + {Field, Curve, erlang:list_to_binary(Base), Order, CoFactor}; +ec_curve_spec({namedCurve, OID}) -> + pubkey_cert_records:namedCurves(OID). + +ec_key({Curve, PrivateKey, PubKey}) when is_atom(Curve) -> + #'ECPrivateKey'{version = 1, + privateKey = int2list(PrivateKey), + parameters = {namedCurve, pubkey_cert_records:namedCurves(Curve)}, + publicKey = {0, PubKey}}. + +ec_key({Curve, PrivateKey, PubKey}, _Params) when is_atom(Curve) -> + #'ECPrivateKey'{version = 1, + privateKey = int2list(PrivateKey), + parameters = {namedCurve, pubkey_cert_records:namedCurves(Curve)}, + publicKey = {0, PubKey}}; + +ec_key({_Curve, PrivateKey, PubKey}, Params) -> + #'ECPrivateKey'{version = 1, + privateKey = int2list(PrivateKey), + parameters = Params, + publicKey = {0, PubKey}}. + list2int(L) -> S = length(L) * 8, <<R:S/integer>> = erlang:iolist_to_binary(L), R. - -ec_private_key_to_eckey(#'ECPrivateKey'{privateKey = PrivKey, - parameters = Param, - publicKey = _PubKey}) -> - ECCurve = - case Param of - #'OTPECParameters'{ fieldID = FieldId, curve = PCurve, base = Base, order = Order, cofactor = CoFactor } -> - Field = {pubkey_cert_records:supportedCurvesTypes(FieldId#'OTPFieldID'.fieldType), - FieldId#'OTPFieldID'.parameters}, - Curve = {list2int(PCurve#'Curve'.a), list2int(PCurve#'Curve'.b), none}, - {Field, Curve, erlang:list_to_binary(Base), Order, CoFactor}; - {namedCurve, OID} -> - pubkey_cert_records:namedCurves(OID) - end, - {ECCurve, list2int(PrivKey), undefined}. - %%{'ECKey', crypto:term_to_ec_key(Key)}. - -ec_public_key_to_eckey({#'ECPoint'{point = ECPoint}, Param}) -> - ECCurve = - case Param of - #'OTPECParameters'{ fieldID = FieldId, curve = PCurve, base = Base, order = Order, cofactor = CoFactor } -> - Field = {pubkey_cert_records:supportedCurvesTypes(FieldId#'OTPFieldID'.fieldType), - FieldId#'OTPFieldID'.parameters}, - Curve = {list2int(PCurve#'Curve'.a), list2int(PCurve#'Curve'.b), none}, - {Field, Curve, erlang:list_to_binary(Base), Order, CoFactor}; - {namedCurve, OID} -> - pubkey_cert_records:namedCurves(OID) - end, - {ECCurve, undefined, ECPoint}. - %%{'ECKey', crypto:term_to_ec_key(Key)}. +int2list(I) -> + L = (length(integer_to_list(I, 16)) + 1) div 2, + binary_to_list(<<I:(L*8)>>). |