/
ucryptoapi.pas
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ucryptoapi.pas
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unit ucryptoapi;
{$ifdef fpc}{$mode delphi}{$endif fpc}
interface
uses
windows,Classes, SysUtils,JwaWinCrypt,jwawintype,jwabcrypt{,uadvapi32},utils{$ifndef fpc},math{$endif fpc};
//light version...
type tmasterkey=record
szGuid:tguid;
//dwMasterKeyLen:dword;
salt:array [0..15] of byte;
rounds:dword;
algHash:dword;
algCrypt:dword;
pbKey:array of byte;
end;
pmasterkey=^tmasterkey;
type tDPAPI_CREDHIST_HEADER =record
dwVersion:DWORD;
guid_:GUID;
dwNextLen:DWORD;
end;
type tDPAPI_CREDHIST_ENTRY=record
header:tDPAPI_CREDHIST_HEADER;
dwType:DWORD; // flags ?
algHash:ALG_ID;
rounds:DWORD;
sidLen:DWORD;
algCrypt:ALG_ID;
sha1Len:DWORD;
md4Len:DWORD;
salt:array[0..15] of byte;
pSid:PSID;
stringsid:string;
pSecret:array of byte; //PBYTE;
__dwSecretLen:DWORD;
end;
pDPAPI_CREDHIST_ENTRY=^tDPAPI_CREDHIST_ENTRY;
type tDPAPI_CREDHIST =record
current:tDPAPI_CREDHIST_HEADER;
entries:array of tDPAPI_CREDHIST_ENTRY;//array[0..0] of tDPAPI_CREDHIST_ENTRY;
__dwCount:DWORD;
end;
pDPAPI_CREDHIST=^tDPAPI_CREDHIST;
type tdpapi_blob=record
dwVersion:DWORD;
guidProvider:tguid;
dwMasterKeyVersion:DWORD;
guidMasterKey:tGUID;
dwFlags:DWORD;
dwDescriptionLen:DWORD;
szDescription:LPWSTR; //PWSTR
algCrypt:ALG_ID;
dwAlgCryptLen:DWORD;
dwSaltLen:DWORD;
pbSalt:array of byte; //PBYTE
dwHmacKeyLen:DWORD;
pbHmackKey:PBYTE;
algHash:ALG_ID;
dwAlgHashLen:DWORD;
dwHmac2KeyLen:DWORD;
pbHmack2Key:array of byte; //PBYTE
dwDataLen:DWORD;
pbData:array of byte; //PBYTE;
dwSignLen:DWORD;
pbSign:array of byte; //PBYTE
end;
pdpapi_blob=^tdpapi_blob;
type _BCRYPT_AUTHENTICATED_CIPHER_MODE_INFO =record
cbSize:ULONG;
dwInfoVersion:ULONG;
pbNonce:PBYTE; //PUCHAR;
cbNonce:ULONG;
pbAuthData:PBYTE; //PUCHAR;
cbAuthData:ULONG;
pbTag:PBYTE; //PUCHAR;
cbTag:ULONG;
pbMacContext:PBYTE; //PUCHAR;
cbMacContext:ULONG;
cbAAD:ULONG;
cbData:ULONGLONG;
dwFlags:ULONG;
end;
BCRYPT_AUTHENTICATED_CIPHER_MODE_INFO=_BCRYPT_AUTHENTICATED_CIPHER_MODE_INFO;
PBCRYPT_AUTHENTICATED_CIPHER_MODE_INFO=^BCRYPT_AUTHENTICATED_CIPHER_MODE_INFO;
function DecryptAES128(const Key: tbyte16;const IV:array of byte;const data: tbyte16;var output:tbyte16): boolean;
function EnCryptDecrypt(algid:dword;hashid:dword;CRYPT_MODE:dword;const key: tbytes;var buffer:tbytes;const decrypt:boolean=false):boolean;
//function bdecrypt(algo:lpcwstr;encryped:array of byte;output:pointer;const gKey,initializationVector:array of byte):ULONG;
function bdecrypt(algo:lpcwstr;encryped:array of byte;output:pointer;const gKey,initializationVector:array of byte;CHAINING_MODE:widestring=''):ULONG;
function bdecrypt_gcm(algo:lpcwstr;encryped:array of byte;output:pointer;const gKey,initializationVector:array of byte):ULONG;
function bencrypt(algo:lpcwstr;decrypted:array of byte;output:pointer;const gKey,initializationVector:array of byte):ULONG;
function CryptProtectData_(dataBytes:array of byte;var output:tbytes;flags:dword=0):boolean;overload;
function CryptProtectData_(dataBytes:array of byte;filename:string;flags:dword=0):boolean;overload;
function CryptUnProtectData_(filename:string;var dataBytes:tbytes;const AdditionalEntropy: string=''):boolean;overload;
function CryptUnProtectData_(buffer:tbytes;var output:tbytes;const AdditionalEntropy: string=''):boolean;overload;
function decodecredblob(cred:pointer):boolean;
function decodecred(cred:pointer):boolean;
//function decodeblob(filename:string;var blob:tdpapi_blob):boolean;overload;
function decodeblob(filename:string;blob:pdpapi_blob;debug:byte=1):boolean;overload;
function decodeblob(buffer:tbytes; blob:pdpapi_blob;debug:byte=1):boolean;overload;
function decodemk(filename:string; mk:pmasterkey):boolean;
function decodecredhist(filename:string; credhist:pDPAPI_CREDHIST):boolean;
function crypto_hash_len( hashId:ALG_ID):dword;
function crypto_cipher_blocklen( hashId:ALG_ID):DWORD;
function crypto_cipher_keylen( hashId:ALG_ID):dword;
function crypto_hash_(algid:alg_id;data:LPCVOID;dataLen:DWORD; var output:tbytes;hashWanted:DWORD):boolean;
function crypto_hash(algid:alg_id;data:LPCVOID;dataLen:DWORD; hash:lpvoid;hashWanted:DWORD):boolean;
function crypto_hash_hmac(calgid:DWORD; key:lpbyte;keyLen:DWORD; message:lpbyte; messageLen:DWORD; hash:LPVOID;hashWanted:DWORD ):boolean;
//function lsadump_sec_aes256(var hardSecretBlob:tbytes; hardSecretBlobSize:dword;lsaKeysStream:pointer;sysKey:tbyte16):boolean;
function lsadump_sec_aes256(var hardSecretBlob:tbytes; hardSecretBlobSize:dword;lsaKeysStream:pointer;sysKey:pointer):boolean;
//function CryptSetHashParam_(hHash: HCRYPTHASH; dwParam: DWORD; const pbData: LPBYTE; dwFlags: DWORD): BOOL; stdcall;external 'Advapi32.dll' name 'CryptSetHashParam';
type
PCREDENTIAL_ATTRIBUTEW = ^_CREDENTIAL_ATTRIBUTEW;
_CREDENTIAL_ATTRIBUTEW = record
Keyword: LPWSTR;
Flags: DWORD;
ValueSize: DWORD;
Value: LPBYTE;
end;
PCREDENTIALW = ^_CREDENTIALW;
_CREDENTIALW = record
Flags: DWORD;
Type_: DWORD;
TargetName: LPWSTR;
Comment: LPWSTR;
LastWritten: FILETIME;
CredentialBlobSize: DWORD;
dummy : dword;
CredentialBlob: LPBYTE;
Persist: DWORD;
AttributeCount: DWORD;
Attributes: PCREDENTIAL_ATTRIBUTEW;
TargetAlias: LPWSTR;
UserName: LPWSTR;
end;
PCredentialArray = array of PCREDENTIALW;
type CRED_BLOB =record
credFlags:DWORD;
credSize:DWORD;
credUnk0:DWORD;
Type_:DWORD;
Flags:DWORD;
LastWritten:windows.FILETIME;
unkFlagsOrSize:DWORD;
Persist:DWORD;
AttributeCount:DWORD;
unk0:DWORD;
unk1:DWORD;
data:array[0..0] of byte;
{
dwTargetName:DWORD;
TargetName:array of byte; //LPWSTR;
dwTargetAlias:DWORD;
TargetAlias:array of byte; //LPWSTR;
dwComment:DWORD;
Comment:array of byte; //LPWSTR;
dwUnkData:DWORD;
UnkData:array of byte; //LPWSTR;
dwUserName:DWORD;
UserName:array of byte; //LPWSTR;
CredentialBlobSize:DWORD;
CredentialBlob:array of byte; //LPBYTE;
Attributes:pointer ; //PKULL_M_CRED_ATTRIBUTE
}
end;
PCRED_BLOB=^CRED_BLOB;
//https://docs.microsoft.com/en-us/windows/win32/seccrypto/alg-id
const
//cipher
CALG_RC2 = $00006602;
CALG_RC4= $00006801;
CALG_RC5= $0000660d;
CALG_DES= $00006601;
CALG_DESX= $00006604;
CALG_3DES= $00006603;
CALG_3DES_112 = $00006609;
CALG_AES= $00006611;
CALG_AES_128= $0000660e;
CALG_AES_192= $0000660f;
CALG_AES_256= $00006610;
//hash
CALG_SHA1 = ALG_CLASS_HASH or ALG_TYPE_ANY or ALG_SID_SHA1;
//CALG_HMAC= $00008009;
//CALG_MAC= $00008005;
const
SHA_DIGEST_LENGTH=20;
LM_NTLM_HASH_LENGTH=16;
const
PROV_RSA_AES = 24;
type _PUBLICKEYSTRUC = record
bType:BYTE;
bVersion:BYTE;
reserved:WORD;
aiKeyAlg:ALG_ID;
end;
BLOBHEADER=_PUBLICKEYSTRUC;
PBLOBHEADER=^_PUBLICKEYSTRUC;
PUBLICKEYSTRUC=_PUBLICKEYSTRUC;
type _NT6_SYSTEM_KEY =record
KeyId:tGUID;
KeyType:DWORD;
KeySize:DWORD;
Key:array [0..0] of byte;
end;
PNT6_SYSTEM_KEY=^_NT6_SYSTEM_KEY;
type _NT6_SYSTEM_KEYS =record
unkType0:DWORD;
CurrentKeyID:GUID;
unkType1:DWORD;
nbKeys:DWORD;
Keys:array [0..0] of _NT6_SYSTEM_KEY;
end;
PNT6_SYSTEM_KEYS=^_NT6_SYSTEM_KEYS;
type _NT6_CLEAR_SECRET =record
SecretSize:DWORD;
unk0:DWORD;
unk1:DWORD;
unk2:DWORD;
Secret:array[0..0] of byte;
end;
NT6_CLEAR_SECRET=_NT6_CLEAR_SECRET;
PNT6_CLEAR_SECRET=^NT6_CLEAR_SECRET;
//#define LAZY_NT6_IV_SIZE 32
//#define ANYSIZE_ARRAY 1
type _NT6_HARD_SECRET =record
version:DWORD;
KeyId:GUID;
algorithm:DWORD;
flag:DWORD;
lazyiv:array [0..32-1] of byte;
Secret:array [0..0] of byte; //can be encrypted or clear
end;
NT6_HARD_SECRET=_NT6_HARD_SECRET;
PNT6_HARD_SECRET=^NT6_HARD_SECRET;
//late binding rather than early binding as in jwawincrypt
//late binding rather than early binding as in jwaBCcrypt
var
CryptProtectData:function(pDataIn: PDATA_BLOB; szDataDescr: LPCWSTR;
pOptionalEntropy: PDATA_BLOB; pvReserved: PVOID;
pPromptStruct: PCRYPTPROTECT_PROMPTSTRUCT; dwFlags: DWORD; pDataOut: PDATA_BLOB): BOOL; stdcall;
CryptUnprotectData:function(pDataIn: PDATA_BLOB; ppszDataDescr: LPLPWSTR;
pOptionalEntropy: PDATA_BLOB; pvReserved: PVOID;
pPromptStruct: PCRYPTPROTECT_PROMPTSTRUCT; dwFlags: DWORD; pDataOut: PDATA_BLOB): BOOL; stdcall;
BCryptOpenAlgorithmProvider:function(out phAlgorithm: BCRYPT_ALG_HANDLE;
pszAlgId, pszImplementation: LPCWSTR; dwFlags: ULONG): TNTStatus; stdcall;
BCryptSetProperty:function(hObject: BCRYPT_HANDLE; pszProperty: LPCWSTR;
pbInput: PUCHAR; cbInput: ULONG; dwFlags: ULONG): TNTStatus; stdcall;
BCryptGenerateSymmetricKey:function(hAlgorithm: BCRYPT_ALG_HANDLE;
out phKey: BCRYPT_KEY_HANDLE; pbKeyObject: PUCHAR; cbKeyObject: ULONG;
pbSecret: PUCHAR; cbSecret, dwFlags: ULONG): TNTStatus; stdcall;
BCryptEncrypt:function(hKey: BCRYPT_KEY_HANDLE; pbInput: PUCHAR;
cbInput: ULONG; pPaddingInfo: Pointer; pbIV: PUCHAR; cbIV: ULONG;
pbOutput: PUCHAR; cbOutput: ULONG; out pcbResult: ULONG;
dwFlags: ULONG): TNTStatus; stdcall;
BCryptDecrypt:function(hKey: BCRYPT_KEY_HANDLE; pbInput: PUCHAR;
cbInput: ULONG; pPaddingInfo: Pointer; pbIV: PUCHAR; cbIV: ULONG;
pbOutput: PUCHAR; cbOutput: ULONG; out pcbResult: ULONG;
dwFlags: ULONG): TNTStatus; stdcall;
implementation
uses uadvapi32; //to avoid circular reference
type _GENERICKEY_BLOB =record
Header:BLOBHEADER;
dwKeyLen:DWORD;
end;
GENERICKEY_BLOB=_GENERICKEY_BLOB;
PGENERICKEY_BLOB=^GENERICKEY_BLOB;
type
//{$align 8}
_MY_BLOB = record
cbData: DWORD;
pbData: LPBYTE;
end;
type _RSAPUBKEY =record
magic:DWORD; // Has to be RSA1
bitlen:DWORD; // # of bits in modulus
pubexp:DWORD; // public exponent
end; // Modulus data follows
RSAPUBKEY=_RSAPUBKEY;
PRSAPUBKEY=^_RSAPUBKEY;
const
BCRYPT_CHAIN_MODE_CBC_:widestring = 'ChainingModeCBC';
BCRYPT_CHAIN_MODE_ECB_:widestring = 'ChainingModeECB';
BCRYPT_CHAIN_MODE_CFB_:widestring = 'ChainingModeCFB';
BCRYPT_CHAINING_MODE_ :widestring = 'ChainingMode';
BCRYPT_CHAIN_MODE_GCM_:widestring = 'ChainingModeGCM';
procedure RtlCopyMemory(Destination: PVOID; Source: PVOID; Length: SIZE_T); stdcall;
begin
Move(Source^, Destination^, Length);
end;
//https://stackoverflow.com/questions/13145112/secure-way-to-store-password-in-windows
function CryptProtectData_(dataBytes:array of byte;var output:tbytes;flags:dword=0):boolean;overload;
var
plainBlob,encryptedBlob:DATA_BLOB;
begin
fillchar(plainBlob,sizeof(DATA_BLOB),0);
fillchar(encryptedBlob,sizeof(DATA_BLOB),0);
plainBlob.pbData :=@dataBytes[0]; //dataBytes;
plainBlob.cbData := sizeof(dataBytes);
result:=CryptProtectData(@plainBlob, nil, nil, nil, nil, flags, @encryptedBlob);
if result=true then
begin
setlength(output,encryptedBlob.cbData);
CopyMemory (@output[0],encryptedBlob.pbData,encryptedBlob.cbData);
end;
end;
function CryptProtectData_(dataBytes:array of byte;filename:string;flags:dword=0):boolean;overload;
var
plainBlob,encryptedBlob:_MY_BLOB;
outfile:thandle{$ifdef fpc}=0{$endif fpc};
byteswritten:dword{$ifdef fpc}=0{$endif fpc};
//
text:string;
begin
result:=false;
fillchar(plainBlob,sizeof(plainBlob),0);
fillchar(encryptedBlob,sizeof(encryptedBlob),0);
outFile := CreateFile(pchar(filename), GENERIC_WRITE, 0, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if outfile<=0 then exit;
plainBlob.pbData := @dataBytes[0];
plainBlob.cbData := length(dataBytes);
log('length in:'+inttostr(length(dataBytes)));
//test
{
text:='password';
plainBlob.cbData := SizeOf(Char)*Length(Text);
plainBlob.pbData := Pointer(LocalAlloc(LPTR, plainBlob.cbData));
Move(Pointer(Text)^, plainBlob.pbData^, plainBlob.cbData);
}
result:=CryptProtectData(@plainBlob, nil, nil, nil, nil, flags, @encryptedBlob);
log('cbData:'+inttostr(encryptedBlob.cbData) );
if result=true then
begin
result:=WriteFile(outFile, encryptedBlob.pbData^, encryptedBlob.cbData, byteswritten, nil);
log('byteswritten:'+inttostr(byteswritten));
end;
closehandle(outfile);
end;
function decodecred(cred:pointer):boolean;
const
strSalt:string='abe2869f-9b47-4cd9-a358-c22904dba7f7';
//82BD0E67-9FEA-4748-8672-D5EFE5B779B0 - domain entropy
var
bytes:array of byte;//array[0..1023] of byte;
//
OptionalEntropy, datain,dataout:_MY_BLOB; //data_blob does not work? -> error 1783...
tmpSalt:array [0..36] of word; //37 -> 74 -> 148
i:integer;
begin
log('**** decodecred ****');
result:=true;
//
//writeln(sizeof(tmpsalt));
fillchar(tmpSalt ,sizeof(tmpsalt),0);
for i:=0 to 35 do
begin
tmpSalt[i] := ord(strSalt[i+1]) * 4;
//write('\x'+inttohex(tmpSalt[i],2));
end;
//writeln;
fillchar(OptionalEntropy,sizeof(OptionalEntropy),0);
OptionalEntropy.pbData := @tmpSalt[0];
OptionalEntropy.cbData := 74;
//
log('Flags:'+inttostr(PCREDENTIALW(cred)^.Flags) ,1);
log('Type_:'+inttostr(PCREDENTIALW(cred)^.Type_ ),1);
if PCREDENTIALW(cred)^.TargetName<>nil then log('TargetName:'+widestring(PCREDENTIALW(cred)^.TargetName ),1);
if PCREDENTIALW(cred)^.Comment<>nil then log('Comment:'+widestring(PCREDENTIALW(cred)^.Comment ),1);
if PCREDENTIALW(cred)^.TargetAlias<>nil then log('TargetAlias:'+widestring(PCREDENTIALW(cred)^.TargetAlias ),1);
if PCREDENTIALW(cred)^.UserName<>nil then log('UserName:'+widestring(PCREDENTIALW(cred)^.UserName ),1);
log('CredentialBlobSize:'+inttostr(PCREDENTIALW(cred)^.CredentialBlobSize));
if PCREDENTIALW(cred)^.CredentialBlobSize >0 then
begin
setlength(bytes,PCREDENTIALW(cred)^.CredentialBlobSize);
//we could use entropy/salt + CryptUnprotectData
CopyMemory (@bytes[0],PCREDENTIALW(cred)^.CredentialBlob,PCREDENTIALW(cred)^.CredentialBlobSize);
if (PCREDENTIALW(cred)^.TargetName<>nil) and (pos('Microsoft_WinInet',strpas(PCREDENTIALW(cred)^.TargetName))>0) then
begin
fillchar(DataIn,sizeof(DataIn),0);
fillchar(DataOut,sizeof(DataOut),0);
DataIn.pbData := @bytes[0]; //PCREDENTIALW(cred)^.CredentialBlob;
DataIn.cbData := PCREDENTIALW(cred)^.CredentialBlobSize;
if CryptUnprotectData(@DataIn, nil, @OptionalEntropy, nil,nil,0,@DataOut)=true
then log('CredentialBlob:'+BytetoAnsiString (DataOut.pbData ,dataout.cbData ),1)
else log('CryptUnprotectData failed:'+inttostr(getlasterror),1);
//writeln(dataout.cbData );
end //if pos('Microsoft_WinInet',strpas(PCREDENTIALW(cred)^.TargetName))>0 then
else log('CredentialBlob:'+copy(BytetoAnsiString (bytes),1,PCREDENTIALW(cred)^.CredentialBlobSize),1);
end;
end;
function removezero(buffer:array of byte):string;
var
i:dword;
begin
result:='';
if length(buffer)=0 then exit;
for i:=0 to length(buffer)-1 do if buffer[i]<>0 then result:=result+chr(buffer[i]);
end;
function decodecredblob(cred:pointer):boolean;
var
bytes:array[0..1023] of byte;
localft:windows.FILETIME ;
st:windows.SYSTEMTIME ;
dw,offset:dword;
tmp:array of byte;
begin
result:=true;
log('CredFlags:'+inttostr(PCRED_BLOB(cred)^.credFlags) ,1);
log('CredSize:'+inttostr(PCRED_BLOB(cred)^.credSize ),1);
log('Type:'+inttostr(PCRED_BLOB(cred)^.type_ ),1);
log('Flags:'+inttostr(PCRED_BLOB(cred)^.Flags ),1);
//
FileTimeToLocalFileTime (PCRED_BLOB(cred)^.LastWritten,localft) ;
FileTimeToSystemTime(localft, st );
log('LastWritten:'+DateTimeToStr (SystemTimeToDateTime (st)),1);
//
offset:=0;
dw:=PCRED_BLOB(cred)^.data[0];
//log('dwtargetname:'+inttostr(dw));
setlength(tmp ,dw);
zeromemory(@tmp[0],dw);
copymemory(@tmp[0],@PCRED_BLOB(cred)^.data[offset+4],dw);
log('TargetName:'+pwidechar(@tmp[0] ),1);
zeromemory(@tmp[0],dw);
//
inc(offset,dw+sizeof(dword));
dw:=PCRED_BLOB(cred)^.data[offset];
//log('dwunkdata:'+inttostr(dw));
setlength(tmp ,dw);
copymemory(@tmp[0],@PCRED_BLOB(cred)^.data[offset+4],dw);
log('Unkdata:'+pwidechar(@tmp[0] ),1);
zeromemory(@tmp[0],dw);
//
inc(offset,dw+sizeof(dword));
dw:=PCRED_BLOB(cred)^.data[offset];
//log('dwcomment:'+inttostr(dw));
setlength(tmp ,dw);
copymemory(@tmp[0],@PCRED_BLOB(cred)^.data[offset+4],dw);
log('Comment:'+pwidechar(@tmp[0] ),1);
zeromemory(@tmp[0],dw);
//
inc(offset,dw+sizeof(dword));
dw:=PCRED_BLOB(cred)^.data[offset];
//log('dwtargetalias:'+inttostr(dw));
setlength(tmp ,dw);
copymemory(@tmp[0],@PCRED_BLOB(cred)^.data[offset+4],dw);
log('Targetalias:'+pwidechar(@tmp[0] ),1);
zeromemory(@tmp[0],dw);
//
inc(offset,dw+sizeof(dword));
dw:=PCRED_BLOB(cred)^.data[offset];
//log('dwusername:'+inttostr(dw));
setlength(tmp ,dw);
copymemory(@tmp[0],@PCRED_BLOB(cred)^.data[offset+4],dw);
log('Username:'+pwidechar(@tmp[0] ),1);
zeromemory(@tmp[0],dw);
//
inc(offset,dw+sizeof(dword));
dw:=PCRED_BLOB(cred)^.data[offset];
//log('CredentialBlobSize:'+inttostr(dw));
setlength(tmp ,dw);
copymemory(@tmp[0],@PCRED_BLOB(cred)^.data[offset+4],dw);
//log('CredentialBlob:'+ pwidechar(@tmp[0] ),1);
//log('CredentialBlob:'+BytetoAnsiString ( tmp ),1);
log('CredentialBlob:'+removezero ( tmp ),1);
zeromemory(@tmp[0],dw);
//
end;
function decodecredhist(filename:string; credhist:pDPAPI_CREDHIST):boolean;
var
buffer:array[0..4095] of byte;
outfile:thandle{$ifdef fpc}=0{$endif fpc};
bytesread:cardinal;
offset,size:word;
dw,sidlen,nextlen:dword;
guid_:tguid;
debug:byte;
bytes:tbytes;
stringsid:pchar;
fsize:int64;
label debut;
begin
log('**** decodecredhist ****');
//if credhist=nil then debug:=1 else debug:=0;
debug:=1;
//if credhist<>nil then ZeroMemory(credhist,4096);
//
outFile := CreateFile(pchar(filename), GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL , 0);
Int64Rec(fsize).Lo := GetFileSize(outFile, @Int64Rec(fsize).Hi);
if outfile=thandle(-1) then log('CreateFile:'+inttostr(getlasterror));
if outfile=thandle(-1) then exit;
bytesread:=0;
result:=readfile(outfile ,buffer,4096,bytesread,nil);
closehandle(outfile);
//
offset:=0;
size:=0;
//
debut:
//if nextlen>0 we should increase array of cred entries by 1 or we just loop thru the file...
if credhist <>nil then
begin
setlength(credhist.entries,length(credhist.entries)+1);
log('******** entry #'+inttostr(length(credhist.entries)-1)+' ********',1);
end;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwVersion:'+inttohex(dw,4),debug);
inc(offset,4);
//
CopyMemory( @guid_,@buffer[offset],sizeof(guid_));
log('guid:'+GUIDToString(guid_),debug);
inc(offset,sizeof(guid_));
//
CopyMemory( @nextlen,@buffer[offset],sizeof(nextlen));
log('dwNextLen:'+inttohex(nextlen,4),debug);
inc(offset,4);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwType:'+inttohex(dw,4),debug);
inc(offset,4);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('algHash:'+inttohex(dw,4),debug);
inc(offset,4);
if credhist <>nil then credhist.entries [high(credhist.entries)].algHash :=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('rounds:'+inttohex(dw,4),debug);
inc(offset,4);
if credhist <>nil then credhist.entries [high(credhist.entries)].rounds :=dw;
//
CopyMemory( @sidlen,@buffer[offset],sizeof(sidlen));
log('sidLen:'+inttohex(sidlen,4),debug);
inc(offset,4);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('algCrypt:'+inttohex(dw,4),debug);
inc(offset,4);
if credhist <>nil then credhist.entries [high(credhist.entries)].algCrypt :=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('sha1Len:'+inttohex(dw,4),debug);
inc(offset,4);
if credhist <>nil then credhist.entries [high(credhist.entries)].sha1Len :=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('md4Len:'+inttohex(dw,4),debug);
inc(offset,4);
if credhist <>nil then credhist.entries [high(credhist.entries)].md4Len :=dw;
//
setlength(bytes,16);
CopyMemory( @bytes[0],@buffer[offset],16);
log('salt:'+ByteToHexaString (bytes),debug);
if credhist <>nil then CopyMemory( @credhist.entries [high(credhist.entries)].salt[0],@buffer[offset],16);
inc(offset,16);
//
setlength(bytes,sidlen);
CopyMemory( @bytes[0],@buffer[offset],sidlen);
log('sid:'+ByteToHexaString (bytes),debug);
if ConvertSidToStringSidA(@bytes[0] ,stringsid) then
begin
log('---:'+strpas(stringsid),1);
credhist.entries [high(credhist.entries)].stringsid :=strpas(stringsid);
localfree(cardinal(stringsid));
end; // else log('ConvertSidToStringSidA failed',0);
if credhist <>nil then
begin
credhist.entries [high(credhist.entries)].psid:=allocmem(sidlen);
CopyMemory( credhist.entries [high(credhist.entries)].psid,@bytes[0],sidlen);
end;
inc(offset,sidlen);
//
setlength(bytes,$30); //hardcoded - we need to read the last 4 bytes and compute size from here
CopyMemory( @bytes[0],@buffer[offset],$30);
log('psecret:'+ByteToHexaString (bytes),debug);
if credhist <>nil then
begin
setlength(credhist.entries [high(credhist.entries)].pSecret,$30);
CopyMemory( @credhist.entries [high(credhist.entries)].pSecret[0],@buffer[offset],$30);
credhist.entries [high(credhist.entries)].__dwSecretLen :=$30;
end;
inc(offset,$30);
//
if size=0 then size:=offset;
//writeln(size);
//writeln(fsize);
//writeln(offset);
if offset+size>fsize then exit else goto debut; //more entries to come
end;
function decodemk(filename:string; mk:pmasterkey):boolean;
var
buffer:array[0..4095] of byte;
outfile:thandle{$ifdef fpc}=0{$endif fpc};
bytesread:cardinal;
MasterKeyLen,offset:word;
dw:dword;
pw:pwidechar;
bytes:tbytes;
debug:byte;
begin
log('**** decodemk ****');
if mk=nil then debug:=1 else debug:=0;
if mk<>nil then ZeroMemory(mk,sizeof(tmasterkey));
//
outFile := CreateFile(pchar(filename), GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL , 0);
if outfile=thandle(-1) then log('CreateFile:'+inttostr(getlasterror));
if outfile=thandle(-1) then exit;
bytesread:=0;
result:=readfile(outfile ,buffer,4096,bytesread,nil);
closehandle(outfile);
//
offset:=0;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwVersion:'+inttohex(dw,4),debug);
inc(offset,4);
//
inc(offset,8); //dummy
//
pw:=AllocMem ($48);
CopyMemory(pw,@buffer[offset],$48);
log('szGuid:'+string(widestring(pw)),debug);
inc(offset,$48);
if mk<>nil then mk.szGuid :=StringToGUID ('{'+string(widestring(pw))+'}') ;
//
inc(offset,8); //dummy
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwFlags:'+inttohex(dw,4),debug);
inc(offset,4);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwMasterKeyLen:'+inttohex(dw,4),debug);
//mk.dwMasterKeyLen:=dw;
inc(offset,4);
MasterKeyLen:=dw-32;
//
inc(offset,4); //dummy
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwBackupKeyLen:'+inttohex(dw,4),debug);
inc(offset,4);
//
inc(offset,4); //dummy
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwCredHistLen:'+inttohex(dw,4),debug);
inc(offset,4);
//
inc(offset,4); //dummy
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwDomainKeyLen:'+inttohex(dw,4),debug);
inc(offset,4);
//
inc(offset,4); //dummy
//
log('MasterKey',debug);
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwVersion:'+inttohex(dw,4),debug);
inc(offset,4);
//
SetLength(bytes,16);;
CopyMemory (@bytes[0],@buffer[offset],16);
log('Salt:'+ByteToHexaString(bytes),debug);
if mk<>nil then CopyMemory (@mk.Salt[0],@buffer[offset],16);
inc(offset,16);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('rounds:'+inttohex(dw,4),debug);
inc(offset,4);
if mk<>nil then mk.rounds:=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('algHash:'+inttohex(dw,4),debug);
inc(offset,4);
if mk<>nil then mk.algHash:=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('algCrypt:'+inttohex(dw,4),debug);
inc(offset,4);
if mk<>nil then mk.algCrypt:=dw;
//
SetLength(bytes,MasterKeyLen);;
CopyMemory (@bytes[0],@buffer[offset],MasterKeyLen);
log('pbKey:'+ByteToHexaString(bytes),debug);
if mk<>nil then
begin
setlength(mk.pbKey,MasterKeyLen);
CopyMemory (@mk.pbKey[0],@buffer[offset],MasterKeyLen);
end;
inc(offset,MasterKeyLen);
//
end;
function decodeblob(buffer:tbytes;blob:pdpapi_blob;debug:byte=1):boolean;overload;
const
marker:array[0..15] of byte=($D0,$8C,$9D,$DF,$01,$15,$D1,$11,$8C,$7A,$00,$C0,$4F,$C2,$97,$EB);
var
i,offset:word;
dw:dword;
pw:pwidechar;
guid_:tguid;
bytes:tbytes;
//debug:byte;
begin
log('**** decodeblob ****');
offset:=0;
//if blob=nil then debug:=1 else debug:=0;
if blob<>nil then ZeroMemory(blob,sizeof(tdpapi_blob));
for i:=0 to 511 do //look for first 512 bytes...
begin
if CompareMem (@buffer[i],@marker[0],16) then begin offset:=i;break;end;
end;
//if offset=0 then exit;
if offset=0 then begin log('dpapi guid not found? assuming offset=0');offset:=4;end;
//
CopyMemory( @dw,@buffer[offset-4],sizeof(dw));
log('dwVersion:'+inttohex(dw,4),debug);
//
CopyMemory( @guid_,@buffer[offset],sizeof(guid_));
log('GuidProvider:'+GUIDToString(guid_),debug);
inc(offset,16);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwMasterKeyVersion:'+inttohex(dw,4),debug);
inc(offset,4);
//
CopyMemory( @guid_,@buffer[offset],sizeof(guid_));
log('GuidMasterKey:'+GUIDToString(guid_),debug);
if blob<>nil then blob.guidMasterKey:=guid_;
inc(offset,16);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwFlags:'+inttohex(dw,4),debug);
inc(offset,4);
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwDescriptionLen:'+inttostr(dw),debug);
inc(offset,4);
if dw>0 then
begin
pw:=AllocMem (dw);
copymemory(pw,@buffer[offset],dw);
//writeln('szDescription:'+( StringReplace ( string(widestring(pw)),'#13#10','',[]) ));
log('szDescription:'+( string(widestring(pw)) ),debug);
inc(offset,dw);
end;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('algCrypt:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if blob<>nil then blob.algCrypt:=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwAlgCryptLen:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if blob<>nil then blob.dwAlgCryptLen :=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwSaltLen:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if blob<>nil then blob.dwSaltLen:=dw;
if dw>0 then
begin
SetLength(bytes,dw);;
CopyMemory (@bytes[0],@buffer[offset],dw);
if blob<>nil then
begin
setlength(blob.pbSalt ,dw);
CopyMemory (@blob.pbSalt[0],@buffer[offset],dw);
end;
log('pbSalt:'+ByteToHexaString(bytes),debug);
inc(offset,dw);
end;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwHmacKeyLen:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if dw>0 then
begin
SetLength(bytes,dw);;
CopyMemory (@bytes[0],@buffer[offset],dw);
log('pbHmackKey:'+ByteToHexaString(bytes),debug);
inc(offset,dw);
end;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('algHash:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if blob<>nil then blob.algHash:=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwAlgHashLensh:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if blob<>nil then blob.dwAlgHashLen:=dw;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwHmac2KeyLen:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if dw>0 then
begin
SetLength(bytes,dw);;
CopyMemory (@bytes[0],@buffer[offset],dw);
log('pbHmack2Key:'+ByteToHexaString(bytes),debug);
inc(offset,dw);
end;
// i,offset:word;
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwDataLen:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if blob<>nil then blob.dwDataLen :=dw;
if dw>0 then
begin
SetLength(bytes,dw);;
CopyMemory (@bytes[0],@buffer[offset],dw);
if blob<>nil then
begin
setlength(blob.pbData ,dw);
CopyMemory (@blob.pbData[0],@buffer[offset],dw);
end;
log('pbData:'+ByteToHexaString(bytes),debug);
inc(offset,dw);
end;
//
CopyMemory( @dw,@buffer[offset],sizeof(dw));
log('dwSignLen:'+inttohex(dw,sizeof(dw)),debug);
inc(offset,4);
if dw>0 then
begin
SetLength(bytes,dw);;
CopyMemory (@bytes[0],@buffer[offset],dw);
log('pbSign:'+ByteToHexaString(bytes),debug);
inc(offset,dw);
end;
//
result:=true;
end;
//function decodeblob(filename:string;var blob:tdpapi_blob):boolean;overload;
function decodeblob(filename:string;blob:pdpapi_blob;debug:byte=1):boolean;overload;
const
marker:array[0..15] of byte=($D0,$8C,$9D,$DF,$01,$15,$D1,$11,$8C,$7A,$00,$C0,$4F,$C2,$97,$EB);
var
//buffer:array[0..4095] of byte;
buffer:tbytes;
outfile:thandle{$ifdef fpc}=0{$endif fpc};
bytesread:cardinal;
i,offset:word;
guid:tguid;
dw:dword;
pw:pwidechar;
bytes:tbytes;
begin
//
log('**** decodeblob ****');
log('filename:'+filename);
outFile := CreateFile(pchar(filename), GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL , 0);
//if outfile=thandle(-1) then outFile := CreateFile(pchar(filename), GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_HIDDEN , 0);
//if outfile=thandle(-1) then outFile := CreateFile(pchar(filename), GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
//if outfile=thandle(-1) then outFile := CreateFile(pchar(filename), GENERIC_READ, FILE_SHARE_READ , nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL , 0);
//if outfile=thandle(-1) then outFile := CreateFile(pchar(filename), GENERIC_READ, FILE_SHARE_READ or FILE_SHARE_WRITE , nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL , 0);
//if outfile=thandle(-1) then outFile := CreateFile(pchar(filename), GENERIC_READ, FILE_SHARE_READ or FILE_SHARE_WRITE or FILE_SHARE_DELETE , nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL , 0);
if outfile=thandle(-1) then
begin
log('CreateFile:'+inttostr(getlasterror));
exit;
end;
bytesread:=0;
setlength(buffer,4096);
result:=readfile(outfile ,buffer[0],length(buffer),bytesread,nil);
closehandle(outfile);
log('bytesread:'+inttostr(bytesread));
log('result:'+booltostr(result));
if (result=false) or (bytesread=0) then exit;
//
result:=decodeblob (buffer,blob,debug);
end;
function crypto_hash(algid:alg_id;data:LPCVOID;dataLen:DWORD; hash:lpvoid;hashWanted:DWORD):boolean;
var
status:BOOL {$ifdef fpc}=FALSE{$endif fpc};
hProv:HCRYPTPROV;
hHash:HCRYPTHASH;
hashLen:DWORD;
buffer:PBYTE;
//PKERB_CHECKSUM pCheckSum;
Context:PVOID;
begin
log('**** crypto_hash ****');
//writeln(inttohex(CALG_SHA1,4));writeln(inttohex(CALG_MD4,4));writeln(inttohex(CALG_MD5,4));
log('datalen:'+inttostr(datalen));
result:=false;
if CryptAcquireContext(hProv, nil, nil, PROV_RSA_AES, CRYPT_VERIFYCONTEXT) then
begin
log('CryptAcquireContext OK');
if CryptCreateHash(hProv, algid, 0, 0, hHash) then
begin
log('CryptCreateHash OK');
if CryptHashData(hHash, data, dataLen, 0) then
begin
log('CryptHashData OK');
if CryptGetHashParam(hHash, HP_HASHVAL, nil, hashLen, 0) then
begin
log('CryptGetHashParam OK:'+inttostr(hashLen));
buffer:=Pointer(LocalAlloc(LPTR, hashLen));
if buffer<>nil then
begin
log('LocalAlloc OK');
result := CryptGetHashParam(hHash, HP_HASHVAL, buffer, hashLen, 0);
log('CryptGetHashParam:'+BoolToStr(result,true));
//RtlCopyMemory(pointer(hash), buffer, min(hashLen, hashWanted));
log('hashLen:'+inttostr(hashLen));