diff options
Diffstat (limited to 'lib/public_key/src')
| -rw-r--r-- | lib/public_key/src/Makefile | 6 | ||||
| -rw-r--r-- | lib/public_key/src/pubkey_pbe.erl | 213 | ||||
| -rw-r--r-- | lib/public_key/src/pubkey_pem.erl | 81 | ||||
| -rw-r--r-- | lib/public_key/src/public_key.app.src | 4 | ||||
| -rw-r--r-- | lib/public_key/src/public_key.appup.src | 74 | ||||
| -rw-r--r-- | lib/public_key/src/public_key.erl | 102 |
6 files changed, 315 insertions, 165 deletions
diff --git a/lib/public_key/src/Makefile b/lib/public_key/src/Makefile index 5a24b02d2a..062c495a65 100644 --- a/lib/public_key/src/Makefile +++ b/lib/public_key/src/Makefile @@ -42,10 +42,11 @@ MODULES = \ public_key \ pubkey_pem \ pubkey_ssh \ + pubkey_pbe \ pubkey_cert \ - pubkey_cert_records + pubkey_cert_records -HRL_FILES = $(INCLUDE)/public_key.hrl +HRL_FILES = $(INCLUDE)/public_key.hrl INTERNAL_HRL_FILES = @@ -109,4 +110,3 @@ release_spec: opt $(INSTALL_DATA) $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) $(RELSYSDIR)/ebin release_docs_spec: - diff --git a/lib/public_key/src/pubkey_pbe.erl b/lib/public_key/src/pubkey_pbe.erl new file mode 100644 index 0000000000..43f6c42f10 --- /dev/null +++ b/lib/public_key/src/pubkey_pbe.erl @@ -0,0 +1,213 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2011-2011. 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% +%% +%% Description: Implements Password Based Encryption PKCS-5, RFC-2898 + +-module(pubkey_pbe). + +-include("public_key.hrl"). + +-export([encode/4, decode/4, decrypt_parameters/1]). +-export([pbdkdf1/4, pbdkdf2/6]). + +-define(DEFAULT_SHA_MAC_KEYLEN, 20). +-define(ASN1_OCTET_STR_TAG, 4). +-define(IV_LEN, 8). + +%%==================================================================== +%% Internal application API +%%==================================================================== + +%%-------------------------------------------------------------------- +-spec encode(binary(), string(), string(), term()) -> binary(). +%% +%% Description: Performs password based encoding +%%-------------------------------------------------------------------- +encode(Data, Password, "DES-CBC" = Cipher, KeyDevParams) -> + {Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams), + crypto:des_cbc_encrypt(Key, IV, Data); + +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:des_ede3_cbc_encrypt(Key1, Key2, Key3, IV, Data); + +encode(Data, Password, "RC2-CBC" = Cipher, KeyDevParams) -> + {Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams), + crypto:rc2_cbc_encrypt(Key, IV, Data). +%%-------------------------------------------------------------------- +-spec decode(binary(), string(), string(), term()) -> binary(). +%% +%% Description: Performs password based decoding +%%-------------------------------------------------------------------- +decode(Data, Password,"DES-CBC"= Cipher, KeyDevParams) -> + {Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams), + crypto:des_cbc_decrypt(Key, IV, Data); + +decode(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:des_ede3_cbc_decrypt(Key1, Key2, Key3, IV, Data); + +decode(Data, Password,"RC2-CBC"= Cipher, KeyDevParams) -> + {Key, IV} = password_to_key_and_iv(Password, Cipher, KeyDevParams), + crypto:rc2_cbc_decrypt(Key, IV, Data). + +%%-------------------------------------------------------------------- +-spec pbdkdf1(string(), iodata(), integer(), atom()) -> binary(). +%% +%% Description: Implements password based decryption key derive function 1. +%% Exported mainly for testing purposes. +%%-------------------------------------------------------------------- +pbdkdf1(_, _, 0, Acc) -> + Acc; +pbdkdf1(Password, Salt, Count, Hash) -> + Result = crypto:Hash([Password, Salt]), + do_pbdkdf1(Result, Count-1, Result, Hash). + +%%-------------------------------------------------------------------- +-spec pbdkdf2(string(), iodata(), integer(), integer(), fun(), integer()) + -> binary(). +%% +%% Description: Implements password based decryption key derive function 2. +%% Exported mainly for testing purposes. +%%-------------------------------------------------------------------- +pbdkdf2(Password, Salt, Count, DerivedKeyLen, Prf, PrfOutputLen)-> + NumBlocks = ceiling(DerivedKeyLen / PrfOutputLen), + NumLastBlockOctets = DerivedKeyLen - (NumBlocks - 1) * PrfOutputLen , + blocks(NumBlocks, NumLastBlockOctets, 1, Password, Salt, + Count, Prf, PrfOutputLen, <<>>). +%%-------------------------------------------------------------------- +-spec decrypt_parameters(#'EncryptedPrivateKeyInfo_encryptionAlgorithm'{}) -> + {Cipher::string(), #'PBES2-params'{}}. +%% +%% Description: Performs ANS1-decoding of encryption parameters. +%%-------------------------------------------------------------------- +decrypt_parameters(#'EncryptedPrivateKeyInfo_encryptionAlgorithm'{ + algorithm = Oid, parameters = Param}) -> + decrypt_parameters(Oid, Param). + +%%-------------------------------------------------------------------- +%%% Internal functions +%%-------------------------------------------------------------------- +password_to_key_and_iv(Password, _, #'PBES2-params'{} = Params) -> + {Salt, ItrCount, KeyLen, PseudoRandomFunction, PseudoOtputLen, IV} = + key_derivation_params(Params), + <<Key:KeyLen/binary, _/binary>> = + pbdkdf2(Password, Salt, ItrCount, KeyLen, PseudoRandomFunction, PseudoOtputLen), + {Key, IV}; +password_to_key_and_iv(Password, Cipher, Salt) -> + 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 + {Key, Salt}. + +pem_encrypt(_, _, _, 0, Acc, _) -> + Acc; +pem_encrypt(Prev, Password, Salt, Count, Acc, Hash) -> + Result = crypto:Hash([Prev, Password, Salt]), + pem_encrypt(Result, Password, Salt, Count-1 , <<Acc/binary, Result/binary>>, Hash). + +do_pbdkdf1(_, 0, Acc, _) -> + Acc; +do_pbdkdf1(Prev, Count, Acc, Hash) -> + Result = crypto:Hash(Prev), + do_pbdkdf1(Result, Count-1 , <<Result/binary, Acc/binary>>, Hash). + +iv(#'PBES2-params_encryptionScheme'{algorithm = Algo, + parameters = ASNIV}) when (Algo == ?'desCBC') or + (Algo == ?'des-EDE3-CBC') -> + %% This is an so called open ASN1-type that in this + %% case will be an octet-string of length 8 + <<?ASN1_OCTET_STR_TAG, ?IV_LEN, IV:?IV_LEN/binary>> = ASNIV, + IV; +iv(#'PBES2-params_encryptionScheme'{algorithm = ?'rc2CBC', + parameters = ASN1IV}) -> + {ok, #'RC2-CBC-Parameter'{iv = IV}} = 'PKCS-FRAME':decode('RC2-CBC-Parameter', ASN1IV), + iolist_to_binary(IV). + +blocks(1, N, Index, Password, Salt, Count, Prf, PrfLen, Acc) -> + <<XorSum:N/binary, _/binary>> = xor_sum(Password, Salt, Count, Index, Prf, PrfLen), + <<Acc/binary, XorSum/binary>>; +blocks(NumBlocks, N, Index, Password, Salt, Count, Prf, PrfLen, Acc) -> + XorSum = xor_sum(Password, Salt, Count, Index, Prf, PrfLen), + blocks(NumBlocks -1, N, Index +1, Password, Salt, Count, Prf, + PrfLen, <<Acc/binary, XorSum/binary>>). + +xor_sum(Password, Salt, Count, Index, Prf, PrfLen) -> + Result = Prf(Password, [Salt,<<Index:32/unsigned-big-integer>>], PrfLen), + do_xor_sum(Prf, PrfLen, Result, Password, Count-1, Result). + +do_xor_sum(_, _, _, _, 0, Acc) -> + Acc; +do_xor_sum(Prf, PrfLen, Prev, Password, Count, Acc)-> + Result = Prf(Password, Prev, PrfLen), + do_xor_sum(Prf, PrfLen, Result, Password, Count-1, crypto:exor(Acc, Result)). + +decrypt_parameters(?'id-PBES2', DekParams) -> + {ok, Params} = 'PKCS-FRAME':decode('PBES2-params', DekParams), + {cipher(Params#'PBES2-params'.encryptionScheme), Params}. + +key_derivation_params(#'PBES2-params'{keyDerivationFunc = KeyDerivationFunc, + encryptionScheme = EncScheme}) -> + #'PBES2-params_keyDerivationFunc'{algorithm = ?'id-PBKDF2', + parameters = + #'PBKDF2-params'{salt = {specified, OctetSalt}, + iterationCount = Count, + keyLength = Length, + prf = Prf}} = KeyDerivationFunc, + #'PBES2-params_encryptionScheme'{algorithm = Algo} = EncScheme, + {PseudoRandomFunction, PseudoOtputLen} = pseudo_random_function(Prf), + KeyLen = derived_key_length(Algo, Length), + {OctetSalt, Count, KeyLen, + PseudoRandomFunction, PseudoOtputLen, iv(EncScheme)}. + +%% This function currently matches a tuple that ougth to be the value +%% ?'id-hmacWithSHA1, but we need some kind of ASN1-fix for this. +pseudo_random_function(#'PBKDF2-params_prf'{algorithm = + {_,_, _,'id-hmacWithSHA1'}}) -> + {fun crypto:sha_mac/3, pseudo_output_length(?'id-hmacWithSHA1')}; +pseudo_random_function(#'PBKDF2-params_prf'{algorithm = ?'id-hmacWithSHA1'}) -> + {fun crypto:sha_mac/3, pseudo_output_length(?'id-hmacWithSHA1')}. + +pseudo_output_length(?'id-hmacWithSHA1') -> + ?DEFAULT_SHA_MAC_KEYLEN. + +derived_key_length(_, Len) when is_integer(Len) -> + Len; +derived_key_length(Cipher,_) when (Cipher == ?'desCBC') or + (Cipher == "DES-CBC") -> + 8; +derived_key_length(Cipher,_) when (Cipher == ?'rc2CBC') or + (Cipher == "RC2-CBC") -> + 16; +derived_key_length(Cipher,_) when (Cipher == ?'des-EDE3-CBC') or + (Cipher == "DES-EDE3-CBC") -> + 24. + +cipher(#'PBES2-params_encryptionScheme'{algorithm = ?'desCBC'}) -> + "DES-CBC"; +cipher(#'PBES2-params_encryptionScheme'{algorithm = ?'des-EDE3-CBC'}) -> + "DES-EDE3-CBC"; +cipher(#'PBES2-params_encryptionScheme'{algorithm = ?'rc2CBC'}) -> + "RC2-CBC". + +ceiling(Float) -> + erlang:round(Float + 0.5). diff --git a/lib/public_key/src/pubkey_pem.erl b/lib/public_key/src/pubkey_pem.erl index c26815bc04..910473d629 100644 --- a/lib/public_key/src/pubkey_pem.erl +++ b/lib/public_key/src/pubkey_pem.erl @@ -43,8 +43,6 @@ -include("public_key.hrl"). -export([encode/1, decode/1, decipher/2, cipher/3]). -%% Backwards compatibility --export([decode_key/2]). -define(ENCODED_LINE_LENGTH, 64). @@ -69,23 +67,23 @@ encode(PemEntries) -> encode_pem_entries(PemEntries). %%-------------------------------------------------------------------- --spec decipher({pki_asn1_type(), DerEncrypted::binary(),{Cipher :: string(), - Salt :: binary()}}, +-spec decipher({pki_asn1_type(), DerEncrypted::binary(), + {Cipher :: string(), Salt :: iodata() | #'PBES2-params'{}}}, string()) -> Der::binary(). %% %% Description: Deciphers a decrypted pem entry. %%-------------------------------------------------------------------- -decipher({_, DecryptDer, {Cipher,Salt}}, Password) -> - decode_key(DecryptDer, Password, Cipher, Salt). +decipher({_, DecryptDer, {Cipher, KeyDevParams}}, Password) -> + pubkey_pbe:decode(DecryptDer, Password, Cipher, KeyDevParams). %%-------------------------------------------------------------------- --spec cipher(Der::binary(),{Cipher :: string(), Salt :: binary()} , +-spec cipher(Der::binary(), {Cipher :: string(), Salt :: iodata() | #'PBES2-params'{}} , string()) -> binary(). %% %% Description: Ciphers a PEM entry %%-------------------------------------------------------------------- -cipher(Der, {Cipher,Salt}, Password)-> - encode_key(Der, Password, Cipher, Salt). +cipher(Der, {Cipher, KeyDevParams}, Password)-> + pubkey_pbe:encode(Der, Password, Cipher, KeyDevParams). %%-------------------------------------------------------------------- %%% Internal functions @@ -127,8 +125,20 @@ decode_pem_entry(Start, Lines) -> Type = asn1_type(Start), Cs = erlang:iolist_to_binary(Lines), Decoded = base64:mime_decode(Cs), - {Type, Decoded, not_encrypted}. - + case Type of + 'EncryptedPrivateKeyInfo'-> + decode_encrypted_private_keyinfo(Decoded); + _ -> + {Type, Decoded, not_encrypted} + end. + +decode_encrypted_private_keyinfo(Der) -> + #'EncryptedPrivateKeyInfo'{encryptionAlgorithm = AlgorithmInfo, + encryptedData = Data} = + public_key:der_decode('EncryptedPrivateKeyInfo', Der), + DecryptParams = pubkey_pbe:decrypt_parameters(AlgorithmInfo), + {'PrivateKeyInfo', iolist_to_binary(Data), DecryptParams}. + split_bin(Bin) -> split_bin(0, Bin). @@ -160,37 +170,6 @@ join_entry([<<"-----END ", _/binary>>| Lines], Entry) -> join_entry([Line | Lines], Entry) -> join_entry(Lines, [Line | Entry]). -decode_key(Data, Password, "DES-CBC", Salt) -> - Key = password_to_key(Password, Salt, 8), - IV = Salt, - crypto:des_cbc_decrypt(Key, IV, Data); -decode_key(Data, Password, "DES-EDE3-CBC", Salt) -> - Key = password_to_key(Password, Salt, 24), - IV = Salt, - <<Key1:8/binary, Key2:8/binary, Key3:8/binary>> = Key, - crypto:des_ede3_cbc_decrypt(Key1, Key2, Key3, IV, Data). - -encode_key(Data, Password, "DES-CBC", Salt) -> - Key = password_to_key(Password, Salt, 8), - IV = Salt, - crypto:des_cbc_encrypt(Key, IV, Data); -encode_key(Data, Password, "DES-EDE3-CBC", Salt) -> - Key = password_to_key(Password, Salt, 24), - IV = Salt, - <<Key1:8/binary, Key2:8/binary, Key3:8/binary>> = Key, - crypto:des_ede3_cbc_encrypt(Key1, Key2, Key3, IV, Data). - -password_to_key(Data, Salt, KeyLen) -> - <<Key:KeyLen/binary, _/binary>> = - password_to_key(<<>>, Data, Salt, KeyLen, <<>>), - Key. - -password_to_key(_, _, _, Len, Acc) when Len =< 0 -> - Acc; -password_to_key(Prev, Data, Salt, Len, Acc) -> - M = crypto:md5([Prev, Data, Salt]), - password_to_key(M, Data, Salt, Len - size(M), <<Acc/binary, M/binary>>). - unhex(S) -> unhex(S, []). @@ -228,6 +207,10 @@ pem_end(<<"-----BEGIN DSA PRIVATE KEY-----">>) -> <<"-----END DSA PRIVATE KEY-----">>; pem_end(<<"-----BEGIN DH PARAMETERS-----">>) -> <<"-----END DH PARAMETERS-----">>; +pem_end(<<"-----BEGIN PRIVATE KEY-----">>) -> + <<"-----END PRIVATE KEY-----">>; +pem_end(<<"-----BEGIN ENCRYPTED PRIVATE KEY-----">>) -> + <<"-----END ENCRYPTED PRIVATE KEY-----">>; pem_end(_) -> undefined. @@ -242,18 +225,14 @@ asn1_type(<<"-----BEGIN PUBLIC KEY-----">>) -> asn1_type(<<"-----BEGIN DSA PRIVATE KEY-----">>) -> 'DSAPrivateKey'; asn1_type(<<"-----BEGIN DH PARAMETERS-----">>) -> - 'DHParameter'. + 'DHParameter'; +asn1_type(<<"-----BEGIN PRIVATE KEY-----">>) -> + 'PrivateKeyInfo'; +asn1_type(<<"-----BEGIN ENCRYPTED PRIVATE KEY-----">>) -> + 'EncryptedPrivateKeyInfo'. pem_decrypt() -> <<"Proc-Type: 4,ENCRYPTED">>. pem_decrypt_info(Cipher, Salt) -> io_lib:format("DEK-Info: ~s,~s", [Cipher, lists:flatten(hexify(Salt))]). - -%%-------------------------------------------------------------------- -%%% Deprecated -%%-------------------------------------------------------------------- -decode_key({_Type, Bin, not_encrypted}, _) -> - Bin; -decode_key({_Type, Bin, {Chipher,Salt}}, Password) -> - decode_key(Bin, Password, Chipher, Salt). diff --git a/lib/public_key/src/public_key.app.src b/lib/public_key/src/public_key.app.src index 1963bd05d4..4cc81ea573 100644 --- a/lib/public_key/src/public_key.app.src +++ b/lib/public_key/src/public_key.app.src @@ -3,10 +3,12 @@ {vsn, "%VSN%"}, {modules, [ public_key, pubkey_pem, + pubkey_pbe, pubkey_ssh, pubkey_cert, pubkey_cert_records, - 'OTP-PUB-KEY' + 'OTP-PUB-KEY', + 'PKCS-FRAME' ]}, {applications, [crypto, kernel, stdlib]}, {registered, []}, diff --git a/lib/public_key/src/public_key.appup.src b/lib/public_key/src/public_key.appup.src index 4986801dad..2945fb1213 100644 --- a/lib/public_key/src/public_key.appup.src +++ b/lib/public_key/src/public_key.appup.src @@ -1,70 +1,16 @@ %% -*- erlang -*- {"%VSN%", [ - {"0.11", - [ - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_pem, soft, soft_purge, soft_purge, []}, - {add_module, pubkey_ssh, soft, soft_purge, soft_purge}, - {update, pubkey_cert, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert_records, soft, soft_purge, soft_purge, []} - ] - }, - - {"0.10", - [ - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_pem, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert_records, soft, soft_purge, soft_purge, []} - ] - }, - {"0.9", - [ - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert, soft, soft_purge, soft_purge, []} - ] - }, - {"0.8", - [ - {update, 'OTP-PUB-KEY', soft, soft_purge, soft_purge, []}, - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_pem, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert_records, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert, soft, soft_purge, soft_purge, []} - ] - } + {"0.13", [{restart_application, public_key}]}, + {"0.11", [{restart_application, public_key}]}, + {"0.10", [{restart_application, public_key}]}, + {"0.9", [{restart_application, public_key}]}, + {"0.8", [{restart_application, public_key}]} ], [ - {"0.11", - [ - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_pem, soft, soft_purge, soft_purge, []}, - {delete_module, pubkey_ssh, soft, soft_purge, soft_purge}, - {update, pubkey_cert, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert_records, soft, soft_purge, soft_purge, []} - ] - }, - - {"0.10", - [ - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_pem, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert_records, soft, soft_purge, soft_purge, []} - ] - }, - {"0.9", - [ - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert, soft, soft_purge, soft_purge, []} - ] - }, - {"0.8", - [ - {update, 'OTP-PUB-KEY', soft, soft_purge, soft_purge, []}, - {update, public_key, soft, soft_purge, soft_purge, []}, - {update, pubkey_pem, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert_records, soft, soft_purge, soft_purge, []}, - {update, pubkey_cert, soft, soft_purge, soft_purge, []} - ] - } + {"0.13", [{restart_application, public_key}]}, + {"0.11", [{restart_application, public_key}]}, + {"0.10", [{restart_application, public_key}]}, + {"0.9", [{restart_application, public_key}]}, + {"0.8", [{restart_application, public_key}]} ]}. diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl index 33fcce2c44..753322b46d 100644 --- a/lib/public_key/src/public_key.erl +++ b/lib/public_key/src/public_key.erl @@ -45,13 +45,6 @@ ssh_decode/2, ssh_encode/2 ]). -%% Deprecated --export([decode_private_key/1, decode_private_key/2, pem_to_der/1]). - --deprecated({pem_to_der, 1, next_major_release}). --deprecated({decode_private_key, 1, next_major_release}). --deprecated({decode_private_key, 2, next_major_release}). - -type rsa_padding() :: 'rsa_pkcs1_padding' | 'rsa_pkcs1_oaep_padding' | 'rsa_no_padding'. -type public_crypt_options() :: [{rsa_pad, rsa_padding()}]. @@ -104,22 +97,23 @@ pem_entry_decode({Asn1Type, Der, not_encrypted}) when is_atom(Asn1Type), pem_entry_decode({Asn1Type, Der, not_encrypted}, _) when is_atom(Asn1Type), is_binary(Der) -> der_decode(Asn1Type, Der); +pem_entry_decode({Asn1Type, CryptDer, {Cipher, #'PBES2-params'{}}} = PemEntry, + Password) when is_atom(Asn1Type) andalso + is_binary(CryptDer) andalso + is_list(Cipher) -> + do_pem_entry_decode(PemEntry, Password); pem_entry_decode({Asn1Type, CryptDer, {Cipher, Salt}} = PemEntry, - Password) when is_atom(Asn1Type), - is_binary(CryptDer), - is_list(Cipher), - is_binary(Salt), - erlang:byte_size(Salt) == 8 - -> - Der = pubkey_pem:decipher(PemEntry, Password), - der_decode(Asn1Type, Der). + Password) when is_atom(Asn1Type) andalso + is_binary(CryptDer) andalso + is_list(Cipher) andalso + is_binary(Salt) andalso + erlang:byte_size(Salt) == 8 -> + do_pem_entry_decode(PemEntry, Password). %%-------------------------------------------------------------------- -spec pem_entry_encode(pki_asn1_type(), term()) -> pem_entry(). --spec pem_entry_encode(pki_asn1_type(), term(), - {{Cipher :: string(), Salt :: binary()}, string()}) -> - pem_entry(). -% +-spec pem_entry_encode(pki_asn1_type(), term(), term()) -> pem_entry(). +%% %% Description: Creates a pem entry that can be feed to pem_encode/1. %%-------------------------------------------------------------------- pem_entry_encode('SubjectPublicKeyInfo', Entity=#'RSAPublicKey'{}) -> @@ -137,21 +131,36 @@ pem_entry_encode('SubjectPublicKeyInfo', pem_entry_encode(Asn1Type, Entity) when is_atom(Asn1Type) -> Der = der_encode(Asn1Type, Entity), {Asn1Type, Der, not_encrypted}. -pem_entry_encode(Asn1Type, Entity, - {{Cipher, Salt}= CipherInfo, Password}) when is_atom(Asn1Type), - is_list(Cipher), - is_binary(Salt), - erlang:byte_size(Salt) == 8, - is_list(Password)-> - Der = der_encode(Asn1Type, Entity), - DecryptDer = pubkey_pem:cipher(Der, CipherInfo, Password), - {Asn1Type, DecryptDer, CipherInfo}. - +pem_entry_encode(Asn1Type, Entity, {{Cipher, #'PBES2-params'{}} = 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 -> + do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password). + %%-------------------------------------------------------------------- -spec der_decode(asn1_type(), Der::binary()) -> term(). %% %% Description: Decodes a public key asn1 der encoded entity. %%-------------------------------------------------------------------- +der_decode(Asn1Type, Der) when (Asn1Type == 'PrivateKeyInfo') or + (Asn1Type == 'EncryptedPrivateKeyInfo') + andalso is_binary(Der) -> + try + {ok, Decoded} = 'PKCS-FRAME':decode(Asn1Type, Der), + Decoded + catch + error:{badmatch, {error, _}} = Error -> + erlang:error(Error) + end; + der_decode(Asn1Type, Der) when is_atom(Asn1Type), is_binary(Der) -> try {ok, Decoded} = 'OTP-PUB-KEY':decode(Asn1Type, Der), @@ -166,6 +175,16 @@ der_decode(Asn1Type, Der) when is_atom(Asn1Type), is_binary(Der) -> %% %% Description: Encodes a public key entity with asn1 DER encoding. %%-------------------------------------------------------------------- +der_encode(Asn1Type, Entity) when (Asn1Type == 'PrivateKeyInfo') or + (Asn1Type == 'EncryptedPrivateKeyInfo') -> + try + {ok, Encoded} = 'PKCS-FRAME':encode(Asn1Type, Entity), + iolist_to_binary(Encoded) + catch + error:{badmatch, {error, _}} = Error -> + erlang:error(Error) + end; + der_encode(Asn1Type, Entity) when is_atom(Asn1Type) -> try {ok, Encoded} = 'OTP-PUB-KEY':encode(Asn1Type, Entity), @@ -535,6 +554,14 @@ ssh_encode(Entries, Type) when is_list(Entries), %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- +do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password) -> + Der = der_encode(Asn1Type, Entity), + DecryptDer = pubkey_pem:cipher(Der, CipherInfo, Password), + {Asn1Type, DecryptDer, CipherInfo}. + +do_pem_entry_decode({Asn1Type,_, _} = PemEntry, Password) -> + Der = pubkey_pem:decipher(PemEntry, Password), + der_decode(Asn1Type, Der). encrypt_public(PlainText, N, E, Options)-> Padding = proplists:get_value(rsa_pad, Options, rsa_pkcs1_padding), @@ -632,20 +659,3 @@ validate(DerCert, #path_validation_state{working_issuer_name = Issuer, sized_binary(Binary) -> Size = size(Binary), <<?UINT32(Size), Binary/binary>>. - -%%-------------------------------------------------------------------- -%%% Deprecated functions -%%-------------------------------------------------------------------- -pem_to_der(CertSource) -> - {ok, Bin} = file:read_file(CertSource), - {ok, pubkey_pem:decode(Bin)}. - -decode_private_key(KeyInfo) -> - decode_private_key(KeyInfo, no_passwd). - -decode_private_key(KeyInfo = {'RSAPrivateKey', _, _}, Password) -> - DerEncoded = pubkey_pem:decode_key(KeyInfo, Password), - 'OTP-PUB-KEY':decode('RSAPrivateKey', DerEncoded); -decode_private_key(KeyInfo = {'DSAPrivateKey', _, _}, Password) -> - DerEncoded = pubkey_pem:decode_key(KeyInfo, Password), - 'OTP-PUB-KEY':decode('DSAPrivateKey', DerEncoded). |