USECA_EMM.pas ( File view )

  • By sathex 2016-03-20
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			unit USECA_EMM;

interface

uses Windows,SysUtils;

type
    TSECA_EMM=Class(TObject)
  Private
    function GetHexFromArray(P: PBYTEARRAY;Start: DWORD; Len: DWORD; Separator: string): string;
    procedure CreateINS();
    function GetIsForSerialNumber: Boolean;
    function GetIsForEveryCard: Boolean;
  Protected
    mvarBinaryFromTSData:Array [0..4095] of byte;
    mvarCurrentINS: Array [0..255] of BYTE;
    mvarCurrentSerial: array [0..5] of BYTE;
    mvarLastTSLen: DWORD;
  Public
    procedure SetTSData(Data: PBYTEARRAY; Len: DWORD);
    Property IsForSerialNumber: Boolean read GetIsForSerialNumber;
    Property IsForEveryCard: Boolean read GetIsForEveryCard;
    Function GetStringProviderID(): string;
    Function GetStringPPUA(): string;
    Function GetStringProviderIDRaw(): string;
    Function GetStringPPUARaw(): string;
    Function GetStringSerial(): string;
    Function GetStringSerialRaw(): string;
    Function GetStringSerialDecimal(): string;
    Function GetStringINS(ProviderIndex: BYTE): string;
    function GetStringTSData(): string;
    Function GetPPUA(): DWORD;
    function GetProviderIndexModifier: BYTE;
    Function GetSerial(): PBYTEARRAY;
    Function GetINS(ProviderIndex: BYTE): PBYTEARRAY;
    Function GetProviderID: DWORD;
    Function GetKeyUsed(): BYTE;
    Function GetINSLength(): BYTE;
end;

implementation

{
 TSECA_EMM 
}

procedure TSECA_EMM.CreateINS;
var
    i: integer;
    j: integer;
    s: integer;
begin
    mvarCurrentINS[0]:=$C1;
    mvarCurrentINS[1]:=$40;
    mvarCurrentINS[2]:=0;
    if (mvarBinaryFromTSData[0]=$82) or (mvarBinaryFromTSData[0]=$86) Then begin
        s:=13;
        mvarCurrentINS[3]:=mvarBinaryFromTSData[12];
    end else if mvarBinaryFromTSData[0]=$84 Then begin //PPUA
        s:=10;
        mvarCurrentINS[3]:=mvarBinaryFromTSData[9];
    end else if mvarBinaryFromTSData[0]=$83 Then begin //EMM-G
        s:=7;
        mvarCurrentINS[3]:=mvarBinaryFromTSData[6];
    end else begin
        mvarCurrentINS[0]:=0; //Invalidate INS.
        Exit;
    end;
    mvarCurrentINS[4]:=mvarBinaryFromTSData[2]-S+3;
    j:=5;
    for i := s to s+mvarCurrentINS[4] do begin
        mvarCurrentINS[j]:=mvarBinaryFromTSData[i];
        inc(j);
    end;
end;

function TSECA_EMM.GetHexFromArray(P: PBYTEARRAY;Start: DWORD; Len: DWORD;
  Separator: string): string;
var
    i: DWORD;
    s: string;
begin
    for i := Start to Start+Len-1 do begin
        s:=s+format('%.2x',[P[i]]);
        if i<Start+Len-1 Then begin
            s:=s+Separator;
        end;
    end;
    Result:=S;
end;

function TSECA_EMM.GetINS(ProviderIndex: BYTE): PBYTEARRAY;
begin
    if ProviderIndex>15 Then begin
        Result:=nil;
        exit;
    end;
    CreateINS;
    mvarCurrentINS[2]:=ProviderIndex or GetProviderIndexModifier();
    Result:=@mvarCurrentINS[0];
end;

function TSECA_EMM.GetINSLength: BYTE;
begin
    CreateINS;
    Result:=mvarCurrentINS[4];
end;

function TSECA_EMM.GetIsForEveryCard: Boolean;
begin
    if (mvarBinaryFromTSData[0]=$83) Then begin
        Result:=true;
    end else begin
        Result:=false;
    end;
end;

function TSECA_EMM.GetIsForSerialNumber: Boolean;
begin
    if (mvarBinaryFromTSData[0]=$82) or (mvarBinaryFromTSData[0]=$86) Then begin
        Result:=true;
    end else begin
        Result:=false;
    end;
end;

function TSECA_EMM.GetKeyUsed: BYTE;
begin
    CreateINS;
    Result:=mvarCurrentINS[3] and $0F;
end;

function TSECA_EMM.GetPPUA: DWORD;
begin
    if mvarBinaryFromTSData[0]=$84 Then begin
        Result:=mvarBinaryFromTSData[5] shl 24 or
           mvarBinaryFromTSData[6] shl 16 or
           mvarBinaryFromTSData[7] shl 8;
    end else begin
        Result:=0;
    end;
end;

function TSECA_EMM.GetProviderID: DWORD;
begin
    if (mvarBinaryFromTSData[0]=$82) or (mvarBinaryFromTSData[0]=$86) Then begin
        Result:=mvarBinaryFromTSData[9] shl 8 or
           mvarBinaryFromTSData[10];
    end else if mvarBinaryFromTSData[0]=$83 Then begin
        Result:=mvarBinaryFromTSData[3] shl 8 or
           mvarBinaryFromTSData[4];
    end else begin
        Result:=mvarBinaryFromTSData[3] shl 8 or
           mvarBinaryFromTSData[4];
    end;
end;

function TSECA_EMM.GetProviderIndexModifier: BYTE;
begin
    if mvarBinaryFromTSData[0]=$84 Then begin //PPUA
        Result:=mvarBinaryFromTSData[8];
    end else if mvarBinaryFromTSData[0]=$82 Then begin //SN
        Result:=mvarBinaryFromTSData[9];
    end else begin
        Result:=0;
    end;
end;

function TSECA_EMM.GetSerial: PBYTEARRAY;
begin
    if (mvarBinaryFromTSData[0]=$82) or (mvarBinaryFromTSData[0]=$86) Then begin
        move(pchar(@mvarBinaryFromTSData[3])^,pchar(@mvarCurrentSerial[0])^,6);
        Result:=@mvarCurrentSerial[0];
    end else begin
        Result:=nil;
    end;
end;

function TSECA_EMM.GetStringINS(ProviderIndex: BYTE): string;
begin
    if ProviderIndex>15 Then begin
        Result:='Provider Index must be between 0 - 15 (used '+inttostr(ProviderIndex)+')';
        exit;
    end;
    CreateINS;
    mvarCurrentINS[2]:=ProviderIndex or GetProviderIndexModifier();
    Result:=G
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