diff options
Diffstat (limited to 'lib/public_key/src/public_key.erl')
| -rw-r--r-- | lib/public_key/src/public_key.erl | 80 |
1 files changed, 78 insertions, 2 deletions
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl index e753cf3867..e432a1f14f 100644 --- a/lib/public_key/src/public_key.erl +++ b/lib/public_key/src/public_key.erl @@ -92,7 +92,9 @@ pem_entry_decode({'SubjectPublicKeyInfo', Der, _}) -> der_decode(KeyType, Key0); 'DSAPublicKey' -> {params, DssParams} = der_decode('DSAParams', Params), - {der_decode(KeyType, Key0), DssParams} + {der_decode(KeyType, Key0), DssParams}; + 'ECPrivateKey' -> + der_decode(KeyType, Key0) end; pem_entry_decode({Asn1Type, Der, not_encrypted}) when is_atom(Asn1Type), is_binary(Der) -> @@ -334,6 +336,40 @@ format_rsa_private_key(#'RSAPrivateKey'{modulus = N, publicExponent = E, privateExponent = D}) -> [crypto:mpint(K) || K <- [E, N, D]]. +%% +%% Description: convert a ECPrivate key into resource Key +%%-------------------------------------------------------------------- +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, + Key = {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, + Key = {ECCurve, undefined, ECPoint}, + {'ECKey', crypto:term_to_ec_key(Key)}. + %%-------------------------------------------------------------------- -spec sign(binary() | {digest, binary()}, rsa_digest_type() | dss_digest_type(), rsa_private_key() | @@ -356,6 +392,18 @@ sign(PlainText, sha, #'DSAPrivateKey'{p = P, q = Q, g = G, x = X}) -> [crypto:mpint(P), crypto:mpint(Q), crypto:mpint(G), crypto:mpint(X)]); +sign(Digest, DigestType, Key = {?'id-ecPublicKey', _, _}) -> + sign(Digest, DigestType, ec_public_key_to_eckey(Key)); + +sign(Digest, DigestType, Key = #'ECPrivateKey'{}) -> + sign(Digest, DigestType, ec_private_key_to_eckey(Key)); + +sign({digest,_}=Digest, DigestType, {'ECKey', Key}) -> + crypto:ecdsa_sign(DigestType, Digest, Key); + +sign(PlainText, DigestType, {'ECKey', Key}) -> + crypto:ecdsa_sign(DigestType, sized_binary(PlainText), Key); + %% Backwards compatible sign(Digest, none, #'DSAPrivateKey'{} = Key) -> sign({digest,Digest}, sha, Key). @@ -384,6 +432,24 @@ verify({digest,_}=Digest, sha, Signature, {Key, #'Dss-Parms'{p = P, q = Q, g = crypto:dss_verify(Digest, sized_binary(Signature), [crypto:mpint(P), crypto:mpint(Q), crypto:mpint(G), crypto:mpint(Key)]); + +verify({digest,_}=Digest, DigestType, Signature, {'ECKey', Key}) -> + crypto:ecdsa_verify(DigestType, Digest, + sized_binary(Signature), + Key); + +verify(PlainText, DigestType, Signature, Key = #'ECPrivateKey'{}) -> + verify(PlainText, DigestType, Signature, ec_private_key_to_eckey(Key)); + +verify(PlainText, DigestType, Signature, Key = {#'ECPoint'{}, _}) -> + verify(PlainText, DigestType, Signature, ec_public_key_to_eckey(Key)); + +verify(PlainText, DigestType, Signature, {'ECKey', Key}) -> + crypto:ecdsa_verify(DigestType, + sized_binary(PlainText), + sized_binary(Signature), + Key); + %% Backwards compatibility verify(Digest, none, Signature, {_, #'Dss-Parms'{}} = Key ) -> verify({digest,Digest}, sha, Signature, Key); @@ -428,7 +494,17 @@ pkix_verify(DerCert, {Key, #'Dss-Parms'{}} = DSAKey) pkix_verify(DerCert, #'RSAPublicKey'{} = RSAKey) when is_binary(DerCert) -> {DigestType, PlainText, Signature} = pubkey_cert:verify_data(DerCert), - verify(PlainText, DigestType, Signature, RSAKey). + verify(PlainText, DigestType, Signature, RSAKey); + +pkix_verify(DerCert, #'ECPrivateKey'{} = ECKey) + when is_binary(DerCert) -> + {DigestType, PlainText, Signature} = pubkey_cert:verify_data(DerCert), + verify(PlainText, DigestType, Signature, ECKey); + +pkix_verify(DerCert, Key = {'ECKey', _}) + when is_binary(DerCert) -> + {DigestType, PlainText, Signature} = pubkey_cert:verify_data(DerCert), + verify(PlainText, DigestType, Signature, Key). %%-------------------------------------------------------------------- -spec pkix_is_issuer(Cert :: der_encoded()| #'OTPCertificate'{} | #'CertificateList'{}, |