Random.RandomInterface.pas

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{$mode objfpc}{$H+}
{$interfaces corba}
{$codepage UTF8}

Unit Random.RandomInterface;

interface

uses
  Classes,
  SysUtils;

type
   RandomInterface = interface
       ['{0750E585-C1D2-4C1F-A8A4-4EDC41847396}']
       function GetBytes(NBytes : SizeUInt) : TBytes;
       function GetString(NBytes : SizeUInt) : AnsiString;
  end;

  RandomTrait = class (TObject)
    public
    constructor Create;
    destructor Destroy; override;
    function MTRandomBytes(NBytes : SizeUInt) : TBytes; virtual;
  end;

implementation

constructor RandomTrait.Create;
begin
  inherited Create;
end;

destructor RandomTrait.Destroy;
begin
  inherited Destroy;
end;

function RandomTrait.MTRandomBytes(NBytes : SizeUInt) : TBytes;
var
  i : SizeUint;
begin
  System.Randomize;
  SetLength(Result, (NBytes*2));
  for i := 0 to (NBytes*2) do
    begin
      Result[i] := System.Random(MaxInt) mod 256;
    end;
  SetLength(Result, NBytes);
end;

end.