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-rw-r--r--lib/public_key/src/pubkey_pbe.erl76
-rw-r--r--lib/public_key/src/pubkey_pem.erl12
-rw-r--r--lib/public_key/src/public_key.erl25
3 files changed, 94 insertions, 19 deletions
diff --git a/lib/public_key/src/pubkey_pbe.erl b/lib/public_key/src/pubkey_pbe.erl
index 460624163b..521a32189d 100644
--- a/lib/public_key/src/pubkey_pbe.erl
+++ b/lib/public_key/src/pubkey_pbe.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2011-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2014. 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
@@ -22,7 +22,7 @@
-include("public_key.hrl").
--export([encode/4, decode/4, decrypt_parameters/1]).
+-export([encode/4, decode/4, decrypt_parameters/1, encrypt_parameters/1]).
-export([pbdkdf1/4, pbdkdf2/7]).
-define(DEFAULT_SHA_MAC_KEYLEN, 20).
@@ -40,16 +40,16 @@
%%--------------------------------------------------------------------
encode(Data, Password, "DES-CBC" = Cipher, KeyDevParams) ->
{Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams),
- crypto:block_encrypt(des_cbc, Key, IV, Data);
+ crypto:block_encrypt(des_cbc, Key, IV, pbe_pad(Data, KeyDevParams));
encode(Data, Password, "DES-EDE3-CBC" = Cipher, KeyDevParams) ->
{Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams),
<<Key1:8/binary, Key2:8/binary, Key3:8/binary>> = Key,
- crypto:block_encrypt(des3_cbc, [Key1, Key2, Key3], IV, Data);
+ crypto:block_encrypt(des3_cbc, [Key1, Key2, Key3], IV, pbe_pad(Data));
encode(Data, Password, "RC2-CBC" = Cipher, KeyDevParams) ->
{Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams),
- crypto:block_encrypt(rc2_cbc, Key, IV, Data).
+ crypto:block_encrypt(rc2_cbc, Key, IV, pbe_pad(Data, KeyDevParams)).
%%--------------------------------------------------------------------
-spec decode(binary(), string(), string(), term()) -> binary().
%%
@@ -108,6 +108,15 @@ decrypt_parameters(#'EncryptedPrivateKeyInfo_encryptionAlgorithm'{
algorithm = Oid, parameters = Param}) ->
decrypt_parameters(Oid, Param).
+
+%%--------------------------------------------------------------------
+-spec encrypt_parameters({Cipher::string(), Params::term()}) ->
+ #'EncryptedPrivateKeyInfo_encryptionAlgorithm'{}.
+%%
+%% Description: Performs ANS1-decoding of encryption parameters.
+%%--------------------------------------------------------------------
+encrypt_parameters({Cipher, Params}) ->
+ encrypt_parameters(Cipher, Params).
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
@@ -117,14 +126,18 @@ password_to_key_and_iv(Password, _, #'PBES2-params'{} = Params) ->
<<Key:KeyLen/binary, _/binary>> =
pbdkdf2(Password, Salt, ItrCount, KeyLen, PseudoRandomFunction, PseudoHash, PseudoOtputLen),
{Key, IV};
+password_to_key_and_iv(Password, _Cipher, {#'PBEParameter'{salt = Salt,
+ iterationCount = Count}, Hash}) ->
+ <<Key:8/binary, IV:8/binary, _/binary>>
+ = pbdkdf1(Password, erlang:iolist_to_binary(Salt), Count, Hash),
+ {Key, IV};
password_to_key_and_iv(Password, Cipher, Salt) ->
- KeyLen = derived_key_length(Cipher, undefined),
+ KeyLen = derived_key_length(Cipher, undefined),
<<Key:KeyLen/binary, _/binary>> =
pem_encrypt(<<>>, Password, Salt, ceiling(KeyLen div 16), <<>>, md5),
%% Old PEM encryption does not use standard encryption method
- %% pbdkdf1 and uses then salt as IV
+ %% pbdkdf1 and uses then salt as IV
{Key, Salt}.
-
pem_encrypt(_, _, _, 0, Acc, _) ->
Acc;
pem_encrypt(Prev, Password, Salt, Count, Acc, Hash) ->
@@ -169,7 +182,52 @@ do_xor_sum(Prf, PrfHash, PrfLen, Prev, Password, Count, Acc)->
decrypt_parameters(?'id-PBES2', DekParams) ->
{ok, Params} = 'PKCS-FRAME':decode('PBES2-params', DekParams),
- {cipher(Params#'PBES2-params'.encryptionScheme), Params}.
+ {cipher(Params#'PBES2-params'.encryptionScheme), Params};
+decrypt_parameters(?'pbeWithSHA1AndRC2-CBC', DekParams) ->
+ {ok, Params} = 'PKCS-FRAME':decode('PBEParameter', DekParams),
+ {"RC2-CBC", {Params, sha}};
+decrypt_parameters(?'pbeWithSHA1AndDES-CBC', DekParams) ->
+ {ok, Params} = 'PKCS-FRAME':decode('PBEParameter', DekParams),
+ {"DES-CBC", {Params, sha}};
+decrypt_parameters(?'pbeWithMD5AndRC2-CBC', DekParams) ->
+ {ok, Params} = 'PKCS-FRAME':decode('PBEParameter', DekParams),
+ {"RC2-CBC", {Params, md5}};
+decrypt_parameters(?'pbeWithMD5AndDES-CBC', DekParams) ->
+ {ok, Params} = 'PKCS-FRAME':decode('PBEParameter', DekParams),
+ {"DES-CBC", {Params, md5}}.
+
+encrypt_parameters(_Cipher, #'PBES2-params'{} = Params) ->
+ {ok, Der} ='PKCS-FRAME':encode('PBES2-params', Params),
+ #'EncryptedPrivateKeyInfo_encryptionAlgorithm'{
+ algorithm = ?'id-PBES2',
+ parameters = Der};
+
+encrypt_parameters(Cipher, {#'PBEParameter'{} = Params, Hash}) ->
+ {ok, Der} ='PKCS-FRAME':encode('PBEParameter', Params),
+ #'EncryptedPrivateKeyInfo_encryptionAlgorithm'{
+ algorithm = pbe1_oid(Cipher, Hash),
+ parameters = Der}.
+
+pbe1_oid("RC2-CBC", sha) ->
+ ?'pbeWithSHA1AndRC2-CBC';
+pbe1_oid("DES-CBC", sha) ->
+ ?'pbeWithSHA1AndDES-CBC';
+pbe1_oid("RC2-CBC", md5) ->
+ ?'pbeWithMD5AndRC2-CBC';
+pbe1_oid("DES-CBC", md5) ->
+ ?'pbeWithMD5AndDES-CBC'.
+
+pbe_pad(Data, {#'PBEParameter'{}, _}) ->
+ pbe_pad(Data);
+pbe_pad(Data, #'PBES2-params'{}) ->
+ pbe_pad(Data);
+pbe_pad(Data, _) ->
+ Data.
+
+pbe_pad(Data) ->
+ N = 8 - (erlang:byte_size(Data) rem 8),
+ Pad = list_to_binary(lists:duplicate(N, N)),
+ <<Data/binary, Pad/binary>>.
key_derivation_params(#'PBES2-params'{keyDerivationFunc = KeyDerivationFunc,
encryptionScheme = EncScheme}) ->
diff --git a/lib/public_key/src/pubkey_pem.erl b/lib/public_key/src/pubkey_pem.erl
index bee57a223d..8d2e97ad77 100644
--- a/lib/public_key/src/pubkey_pem.erl
+++ b/lib/public_key/src/pubkey_pem.erl
@@ -94,6 +94,10 @@ encode_pem_entries(Entries) ->
encode_pem_entry({Type, Der, not_encrypted}) ->
StartStr = pem_start(Type),
[StartStr, "\n", b64encode_and_split(Der), "\n", pem_end(StartStr) ,"\n\n"];
+encode_pem_entry({'PrivateKeyInfo', Der, EncParams}) ->
+ EncDer = encode_encrypted_private_keyinfo(Der, EncParams),
+ StartStr = pem_start('EncryptedPrivateKeyInfo'),
+ [StartStr, "\n", b64encode_and_split(EncDer), "\n", pem_end(StartStr) ,"\n\n"];
encode_pem_entry({Type, Der, {Cipher, Salt}}) ->
StartStr = pem_start(Type),
[StartStr,"\n", pem_decrypt(),"\n", pem_decrypt_info(Cipher, Salt),"\n",
@@ -139,6 +143,12 @@ decode_encrypted_private_keyinfo(Der) ->
DecryptParams = pubkey_pbe:decrypt_parameters(AlgorithmInfo),
{'PrivateKeyInfo', iolist_to_binary(Data), DecryptParams}.
+
+encode_encrypted_private_keyinfo(EncData, EncryptParmams) ->
+ AlgorithmInfo = pubkey_pbe:encrypt_parameters(EncryptParmams),
+ public_key:der_encode('EncryptedPrivateKeyInfo',
+ #'EncryptedPrivateKeyInfo'{encryptionAlgorithm = AlgorithmInfo,
+ encryptedData = EncData}).
split_bin(Bin) ->
split_bin(0, Bin).
@@ -197,6 +207,8 @@ pem_start('DSAPrivateKey') ->
<<"-----BEGIN DSA PRIVATE KEY-----">>;
pem_start('DHParameter') ->
<<"-----BEGIN DH PARAMETERS-----">>;
+pem_start('EncryptedPrivateKeyInfo') ->
+ <<"-----BEGIN ENCRYPTED PRIVATE KEY-----">>;
pem_start('CertificationRequest') ->
<<"-----BEGIN CERTIFICATE REQUEST-----">>;
pem_start('ContentInfo') ->
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl
index a732455aa7..bbe54ad4e1 100644
--- a/lib/public_key/src/public_key.erl
+++ b/lib/public_key/src/public_key.erl
@@ -133,20 +133,19 @@ pem_entry_decode({Asn1Type, CryptDer, {Cipher, #'PBES2-params'{}}} = PemEntry,
is_binary(CryptDer) andalso
is_list(Cipher) ->
do_pem_entry_decode(PemEntry, Password);
-pem_entry_decode({Asn1Type, CryptDer, {Cipher, Salt}} = PemEntry,
+pem_entry_decode({Asn1Type, CryptDer, {Cipher, {#'PBEParameter'{},_}}} = PemEntry,
Password) when is_atom(Asn1Type) andalso
is_binary(CryptDer) andalso
- is_list(Cipher) andalso
- is_binary(Salt) andalso
- erlang:byte_size(Salt) == 8 ->
+ is_list(Cipher) ->
do_pem_entry_decode(PemEntry, Password);
-pem_entry_decode({Asn1Type, CryptDer, {"AES-128-CBC"=Cipher, IV}} = PemEntry,
+pem_entry_decode({Asn1Type, CryptDer, {Cipher, Salt}} = PemEntry,
Password) when is_atom(Asn1Type) andalso
is_binary(CryptDer) andalso
is_list(Cipher) andalso
- is_binary(IV) andalso
- erlang:byte_size(IV) == 16 ->
- do_pem_entry_decode(PemEntry, Password).
+ is_binary(Salt) andalso
+ ((erlang:byte_size(Salt) == 8) or (erlang:byte_size(Salt) == 16)) ->
+ do_pem_entry_decode(PemEntry, Password).
+
%%--------------------------------------------------------------------
-spec pem_entry_encode(pki_asn1_type(), term()) -> pem_entry().
@@ -174,13 +173,19 @@ pem_entry_encode(Asn1Type, Entity, {{Cipher, #'PBES2-params'{}} = CipherInfo,
is_list(Password) andalso
is_list(Cipher) ->
do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password);
-
+pem_entry_encode(Asn1Type, Entity, {{Cipher,
+ {#'PBEParameter'{}, _}} = CipherInfo,
+ Password}) when is_atom(Asn1Type) andalso
+ is_list(Password) andalso
+ is_list(Cipher) ->
+ do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password);
pem_entry_encode(Asn1Type, Entity, {{Cipher, Salt} = CipherInfo,
Password}) when is_atom(Asn1Type) andalso
is_list(Password) andalso
is_list(Cipher) andalso
is_binary(Salt) andalso
- erlang:byte_size(Salt) == 8 ->
+ ((erlang:byte_size(Salt) == 8) or
+ (erlang:byte_size(Salt) == 16)) ->
do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password).
%%--------------------------------------------------------------------
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 13:12:34 +0000