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authorAndreas Schultz <[email protected]>2012-08-14 16:53:00 +0200
committerIngela Anderton Andin <[email protected]>2013-05-08 10:39:16 +0200
commit709d0482af92ca52d26296f008b495a36161ca00 (patch)
tree9d5980b024fac542d22dd957dcc3fd0562ff1c5d /lib/public_key/test
parentc6c2e82f8b94010e78bfa5fedce7629e7fd32d58 (diff)
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PUBLIC_KEY: add support for Elliptic Curves to public_key app
Diffstat (limited to 'lib/public_key/test')
-rw-r--r--lib/public_key/test/erl_make_certs.erl67
1 files changed, 61 insertions, 6 deletions
diff --git a/lib/public_key/test/erl_make_certs.erl b/lib/public_key/test/erl_make_certs.erl
index 897cf2f350..14efbcc7e0 100644
--- a/lib/public_key/test/erl_make_certs.erl
+++ b/lib/public_key/test/erl_make_certs.erl
@@ -45,7 +45,7 @@
%% {dnQualifer, DnQ}
%% issuer = {Issuer, IssuerKey} true (i.e. a ca cert is created)
%% (obs IssuerKey migth be {Key, Password}
-%% key = KeyFile|KeyBin|rsa|dsa Subject PublicKey rsa or dsa generates key
+%% key = KeyFile|KeyBin|rsa|dsa|ec Subject PublicKey rsa, dsa or ec generates key
%%
%%
%% (OBS: The generated keys are for testing only)
@@ -91,6 +91,16 @@ gen_dsa(LSize,NSize) when is_integer(LSize), is_integer(NSize) ->
{Key, encode_key(Key)}.
%%--------------------------------------------------------------------
+%% @doc Creates a ec key (OBS: for testing only)
+%% the sizes are in bytes
+%% @spec (::integer()) -> {::atom(), ::binary(), ::opaque()}
+%% @end
+%%--------------------------------------------------------------------
+gen_ec(Curve) when is_atom(Curve) ->
+ Key = gen_ec2(Curve),
+ {Key, encode_key(Key)}.
+
+%%--------------------------------------------------------------------
%% @doc Verifies cert signatures
%% @spec (::binary(), ::tuple()) -> ::boolean()
%% @end
@@ -102,7 +112,10 @@ verify_signature(DerEncodedCert, DerKey, _KeyParams) ->
public_key:pkix_verify(DerEncodedCert,
#'RSAPublicKey'{modulus=Mod, publicExponent=Exp});
#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y} ->
- public_key:pkix_verify(DerEncodedCert, {Y, #'Dss-Parms'{p=P, q=Q, g=G}})
+ public_key:pkix_verify(DerEncodedCert, {Y, #'Dss-Parms'{p=P, q=Q, g=G}});
+ #'ECPrivateKey'{version = _Version, privateKey = _PrivKey,
+ parameters = _Params, publicKey = _PubKey} ->
+ public_key:pkix_verify(DerEncodedCert, Key)
end.
%%%%%%%%%%%%%%%%%%%%%%%%% Implementation %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -112,6 +125,7 @@ get_key(Opts) ->
undefined -> make_key(rsa, Opts);
rsa -> make_key(rsa, Opts);
dsa -> make_key(dsa, Opts);
+ ec -> make_key(ec, Opts);
Key ->
Password = proplists:get_value(password, Opts, no_passwd),
decode_key(Key, Password)
@@ -129,6 +143,8 @@ decode_key(#'RSAPrivateKey'{} = Key,_) ->
Key;
decode_key(#'DSAPrivateKey'{} = Key,_) ->
Key;
+decode_key(#'ECPrivateKey'{} = Key,_) ->
+ Key;
decode_key(PemEntry = {_,_,_}, Pw) ->
public_key:pem_entry_decode(PemEntry, Pw);
decode_key(PemBin, Pw) ->
@@ -140,7 +156,10 @@ encode_key(Key = #'RSAPrivateKey'{}) ->
{'RSAPrivateKey', Der, not_encrypted};
encode_key(Key = #'DSAPrivateKey'{}) ->
{ok, Der} = 'OTP-PUB-KEY':encode('DSAPrivateKey', Key),
- {'DSAPrivateKey', Der, not_encrypted}.
+ {'DSAPrivateKey', Der, not_encrypted};
+encode_key(Key = #'ECPrivateKey'{}) ->
+ {ok, Der} = 'OTP-PUB-KEY':encode('ECPrivateKey', Key),
+ {'ECPrivateKey', Der, not_encrypted}.
make_tbs(SubjectKey, Opts) ->
Version = list_to_atom("v"++integer_to_list(proplists:get_value(version, Opts, 3))),
@@ -282,7 +301,14 @@ publickey(#'RSAPrivateKey'{modulus=N, publicExponent=E}) ->
publickey(#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y}) ->
Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-dsa',
parameters={params, #'Dss-Parms'{p=P, q=Q, g=G}}},
- #'OTPSubjectPublicKeyInfo'{algorithm = Algo, subjectPublicKey = Y}.
+ #'OTPSubjectPublicKeyInfo'{algorithm = Algo, subjectPublicKey = Y};
+publickey(#'ECPrivateKey'{version = _Version,
+ privateKey = _PrivKey,
+ parameters = Params,
+ publicKey = {0, PubKey}}) ->
+ Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-ecPublicKey', parameters=Params},
+ #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
+ subjectPublicKey = #'ECPoint'{point = PubKey}}.
validity(Opts) ->
DefFrom0 = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())-1),
@@ -303,13 +329,24 @@ sign_algorithm(#'RSAPrivateKey'{}, Opts) ->
end,
{Type, 'NULL'};
sign_algorithm(#'DSAPrivateKey'{p=P, q=Q, g=G}, _Opts) ->
- {?'id-dsa-with-sha1', {params,#'Dss-Parms'{p=P, q=Q, g=G}}}.
+ {?'id-dsa-with-sha1', {params,#'Dss-Parms'{p=P, q=Q, g=G}}};
+sign_algorithm(#'ECPrivateKey'{}, Opts) ->
+ Type = case proplists:get_value(digest, Opts, sha1) of
+ sha1 -> ?'ecdsa-with-SHA1';
+ sha512 -> ?'ecdsa-with-SHA512';
+ sha384 -> ?'ecdsa-with-SHA384';
+ sha256 -> ?'ecdsa-with-SHA256'
+ end,
+ {Type, 'NULL'}.
make_key(rsa, _Opts) ->
%% (OBS: for testing only)
gen_rsa2(64);
make_key(dsa, _Opts) ->
- gen_dsa2(128, 20). %% Bytes i.e. {1024, 160}
+ gen_dsa2(128, 20); %% Bytes i.e. {1024, 160}
+make_key(ec, _Opts) ->
+ %% (OBS: for testing only)
+ gen_ec2(secp256k1).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% RSA key generation (OBS: for testing only)
@@ -368,6 +405,24 @@ gen_dsa2(LSize, NSize) ->
#'DSAPrivateKey'{version=0, p=P, q=Q, g=G, y=Y, x=X}
end.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% EC key generation (OBS: for testing only)
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+int2list(I) ->
+ L = (length(integer_to_list(I, 16)) + 1) div 2,
+ binary_to_list(<<I:(L*8)>>).
+
+gen_ec2(CurveId) ->
+ Key = crypto:ec_key_new(CurveId),
+ crypto:ec_key_generate(Key),
+ {_Curve, PrivKey, PubKey} = crypto:ec_key_to_term(Key),
+
+ #'ECPrivateKey'{version = 1,
+ privateKey = int2list(PrivKey),
+ parameters = {namedCurve, pubkey_cert_records:namedCurves(CurveId)},
+ publicKey = {0, PubKey}}.
+
%% See fips_186-3.pdf
dsa_search(T, P0, Q, Iter) when Iter > 0 ->
P = 2*T*Q*P0 + 1,