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-rw-r--r--lib/public_key/src/pubkey_crypto.erl59
-rw-r--r--lib/public_key/src/public_key.erl38
2 files changed, 73 insertions, 24 deletions
diff --git a/lib/public_key/src/pubkey_crypto.erl b/lib/public_key/src/pubkey_crypto.erl
index fe4e97fcc5..4ab655e977 100644
--- a/lib/public_key/src/pubkey_crypto.erl
+++ b/lib/public_key/src/pubkey_crypto.erl
@@ -1,19 +1,19 @@
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2008-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 2008-2010. All Rights Reserved.
+%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
-%%
+%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
-%%
+%%
%% %CopyrightEnd%
%%
@@ -26,7 +26,7 @@
-export([encrypt_public/3, decrypt_private/3,
encrypt_private/3, decrypt_public/3,
- sign/2, sign/3, verify/5]).
+ sign/2, sign/3, verify/5, gen_key/2]).
-define(UINT32(X), X:32/unsigned-big-integer).
@@ -44,10 +44,14 @@
%%
%% Description: Public key encrypts PlainText.
%%--------------------------------------------------------------------
-encrypt_public(PlainText, #'RSAPublicKey'{modulus=N,publicExponent=E},Padding) ->
- crypto:rsa_public_encrypt(PlainText, [crypto:mpint(E),crypto:mpint(N)],Padding);
-encrypt_public(PlainText, #'RSAPrivateKey'{modulus=N,publicExponent=E},Padding) ->
- crypto:rsa_public_encrypt(PlainText, [crypto:mpint(E),crypto:mpint(N)],Padding).
+encrypt_public(PlainText, #'RSAPublicKey'{modulus=N,publicExponent=E},
+ Padding) ->
+ crypto:rsa_public_encrypt(PlainText, [crypto:mpint(E),crypto:mpint(N)],
+ Padding);
+encrypt_public(PlainText, #'RSAPrivateKey'{modulus=N,publicExponent=E},
+ Padding) ->
+ crypto:rsa_public_encrypt(PlainText, [crypto:mpint(E),crypto:mpint(N)],
+ Padding).
encrypt_private(PlainText, #'RSAPrivateKey'{modulus = N,
publicExponent = E,
@@ -67,15 +71,20 @@ encrypt_private(PlainText, #'RSAPrivateKey'{modulus = N,
%% Description: Uses private key to decrypt public key encrypted data.
%%--------------------------------------------------------------------
decrypt_private(CipherText,
- #'RSAPrivateKey'{modulus = N,publicExponent = E,privateExponent = D},
+ #'RSAPrivateKey'{modulus = N,publicExponent = E,
+ privateExponent = D},
Padding) ->
crypto:rsa_private_decrypt(CipherText,
- [crypto:mpint(E), crypto:mpint(N),crypto:mpint(D)],
- Padding).
-decrypt_public(CipherText, #'RSAPublicKey'{modulus = N, publicExponent = E}, Padding) ->
- crypto:rsa_public_decrypt(CipherText,[crypto:mpint(E), crypto:mpint(N)], Padding);
-decrypt_public(CipherText, #'RSAPrivateKey'{modulus = N, publicExponent = E}, Padding) ->
- crypto:rsa_public_decrypt(CipherText,[crypto:mpint(E), crypto:mpint(N)], Padding).
+ [crypto:mpint(E), crypto:mpint(N),
+ crypto:mpint(D)], Padding).
+decrypt_public(CipherText, #'RSAPublicKey'{modulus = N, publicExponent = E},
+ Padding) ->
+ crypto:rsa_public_decrypt(CipherText,[crypto:mpint(E), crypto:mpint(N)],
+ Padding);
+decrypt_public(CipherText, #'RSAPrivateKey'{modulus = N, publicExponent = E},
+ Padding) ->
+ crypto:rsa_public_decrypt(CipherText,[crypto:mpint(E), crypto:mpint(N)],
+ Padding).
%%--------------------------------------------------------------------
%% Function: sign(PlainText, Key) ->
@@ -125,10 +134,24 @@ verify(sha, PlainText, Signature, Key, #'Dss-Parms'{p = P, q = Q, g = G}) ->
[crypto:mpint(P), crypto:mpint(Q),
crypto:mpint(G), crypto:mpint(Key)]).
+
+%%--------------------------------------------------------------------
+%% Function: gen_key(Type, Params) ->
+%% Type = diffie_hellman
+%% Params = [P,G] | [Y, P, G]
+%% Description: Generates keys.
+%% -----------------------------------------------------------------
+gen_key(diffie_hellman, [Y, P, G]) ->
+ crypto:dh_generate_key(crypto:mpint(Y), [crypto:mpint(P),
+ crypto:mpint(G)]);
+gen_key(diffie_hellman, [P, G]) ->
+ crypto:dh_generate_key([crypto:mpint(P), crypto:mpint(G)]).
+
+%%% TODO: Support rsa, dss key_gen
+
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
-
sized_binary(Binary) when is_binary(Binary) ->
Size = size(Binary),
<<?UINT32(Size), Binary/binary>>;
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl
index 52c695523f..9a90ffe888 100644
--- a/lib/public_key/src/public_key.erl
+++ b/lib/public_key/src/public_key.erl
@@ -23,11 +23,10 @@
-include("public_key.hrl").
--export([decode_private_key/1, decode_private_key/2,
+-export([decode_private_key/1, decode_private_key/2, decode_dhparams/1,
decrypt_private/2, decrypt_private/3, encrypt_public/2,
encrypt_public/3, decrypt_public/2, decrypt_public/3,
- encrypt_private/2, encrypt_private/3,
- sign/2, sign/3,
+ encrypt_private/2, encrypt_private/3, gen_key/1, sign/2, sign/3,
verify_signature/3, verify_signature/4, verify_signature/5,
pem_to_der/1, pem_to_der/2,
pkix_decode_cert/2, pkix_encode_cert/1, pkix_transform/2,
@@ -62,6 +61,21 @@ decode_private_key(KeyInfo = {dsa_private_key, _, _}, Password) ->
DerEncoded = pubkey_pem:decode_key(KeyInfo, Password),
'OTP-PUB-KEY':decode('DSAPrivateKey', DerEncoded).
+
+%%--------------------------------------------------------------------
+%% Function: decode_dhparams(DhParamInfo) ->
+%% {ok, DhParams} | {error, Reason}
+%%
+%% DhParamsInfo = {Type, der_bin(), ChipherInfo} - as returned from
+%% pem_to_der/[1,2] for DH parameters.
+%% Type = dh_params
+%% ChipherInfo = opaque() | no_encryption
+%%
+%% Description: Decodes an asn1 der encoded DH parameters.
+%%--------------------------------------------------------------------
+decode_dhparams({dh_params, DerEncoded, not_encrypted}) ->
+ 'OTP-PUB-KEY':decode('DHParameter', DerEncoded).
+
%%--------------------------------------------------------------------
%% Function: decrypt_private(CipherText, Key) ->
%% decrypt_private(CipherText, Key, Options) -> PlainTex
@@ -109,6 +123,18 @@ encrypt_private(PlainText, Key, Options) ->
pubkey_crypto:encrypt_private(PlainText, Key, Padding).
%%--------------------------------------------------------------------
+%% Function: gen_key(Params) -> Keys
+%%
+%% Params = #'DomainParameters'{} - Currently only supported option
+%% Keys = {PublicDHKey = integer(), PrivateDHKey = integer()}
+%%
+%% Description: Generates keys. Currently supports Diffie-Hellman keys.
+%%--------------------------------------------------------------------
+gen_key(#'DHParameter'{prime = P, base = G}) when is_integer(P),
+ is_integer(G) ->
+ pubkey_crypto:gen_key(diffie_hellman, [P, G]).
+
+%%--------------------------------------------------------------------
%% Function: pem_to_der(CertSource) ->
%% pem_to_der(CertSource, Password) -> {ok, [Entry]} |
%% {error, Reason}
@@ -116,7 +142,6 @@ encrypt_private(PlainText, Key, Options) ->
%% CertSource = File | CertData
%% CertData = binary()
%% File = path()
-%% Password = string()
%% Entry = {entry_type(), der_bin(), ChipherInfo}
%% ChipherInfo = opague() | no_encryption
%% der_bin() = binary()
@@ -127,7 +152,9 @@ encrypt_private(PlainText, Key, Options) ->
%% entries as asn1 der encoded entities. Currently supported entry
%% types are certificates, certificate requests, rsa private keys and
%% dsa private keys. In the case of a key entry ChipherInfo will be
-%% used by decode_private_key/2 if the key is protected by a password.
+%% private keys and Diffie Hellam parameters .In the case of a key
+%% entry ChipherInfo will be used by decode_private_key/2 if the key
+%% is protected by a password.
%%--------------------------------------------------------------------
pem_to_der(CertSource) ->
pem_to_der(CertSource, no_passwd).
@@ -136,7 +163,6 @@ pem_to_der(File, Password) when is_list(File) ->
pubkey_pem:read_file(File, Password);
pem_to_der(PemBin, Password) when is_binary(PemBin) ->
pubkey_pem:decode(PemBin, Password).
-
%%--------------------------------------------------------------------
%% Function: pkix_decode_cert(BerCert, Type) -> {ok, Cert} | {error, Reason}
%%
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 18:23:40 +0000