Button5: TButton; Button6: TButton; Label5: TLabel; Button7: TButton; Button8: TButton; RadioButton6: TRadioButton; RadioButton7: TRadioButton; RadioButton8: TRadioButton; RadioButton9: TRadioButton; RadioButton10: TRadioButton; Button9: TButton; Edit4: TEdit; Edit5: TEdit; ListBox3: TListBox; Button10: TButton; ListBox4: TListBox; Label12: TLabel; Label13: TLabel; Label14: TLabel; Label15: TLabel; Label36: TLabel; Label37: TLabel; Label38: TLabel; GroupBox1: TGroupBox; GroupBox2: TGroupBox; Label1: TLabel; Label2: TLabel; Label3: TLabel; procedure Button1Click (Sender: TObject); procedure Button2Click (Sender: TObject); procedure Button3Click (Sender: TObject); procedure Button4Click (Sender: TObject); procedure Button5Click (Sender: TObject); procedure Button6Click (Sender: TObject); procedure Button7Click (Sender: TObject); procedure Button8Click (Sender: TObject); procedure Button9Click (Sender: TObject); procedure Button10Click (Sender: TObject); procedure Button11Click (Sender: TObject); procedure Button12Click (Sender: TObject); procedure FormCreate (Sender: TObject); procedure Button13Click (Sender: TObject); procedure Button14Click (Sender: TObject); procedure Button15Click (Sender: TObject); procedure Button16Click (Sender: TObject); private {Private declarations} public {Public declarations} end;
var Form1: TForm1;
implementation
{$ R *. dfm} / / Zawifrovanie failov klju4om na 5 bait procedure TForm1.Button1Click (Sender: TObject); var klu4: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit10.text; while (Length (klu4) <8) do klu4: = klu4 + 0 "; Formirovanie_16_podklju4ei (klu4); razmer: = 0; t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_ECB ('20. Txt ',' DES_crypted \ Z_20_5_ECB.txt '); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_ECB ("50. Txt ',' DES_crypted \ Z_50_5_ECB.txt '); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_ECB ('100. Txt ',' DES_crypted \ Z_100_5_ECB.txt '); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_ECB ('500. Txt ',' DES_crypted \ Z_500_5_ECB.txt '); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_ECB ('1. Txt ',' DES_crypted \ Z_1_5_ECB.txt '); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr ((razmer / vremja) -1) + 'байт / сек'; end;
/ / Raswifrovanie failov klju4om na 5 bait procedure TForm1.Button2Click (Sender: TObject); var klu4: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit10.text; razmer: = 0; while (Length (klu4) <8) do klu4: = klu4 + 0 "; Formirovanie_16_podklju4ei (klu4);
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_20_5_ECB.txt', 'DES_uncrypted \ R_20_5_ECB.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_50_5_ECB.txt', 'DES_uncrypted \ R_50_5_ECB.txt'); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_100_5_ECB.txt', 'DES_uncrypted \ R_100_5_ECB.txt'); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_500_5_ECB.txt', 'DES_uncrypted \ R_500_5_ECB.txt'); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_1_5_ECB.txt', 'DES_uncrypted \ R_1_5_ECB.txt'); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / Zawifrovanie failov klju4om na 6 bait procedure TForm1.Button3Click (Sender: TObject); var klu4: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit11.text; while (Length (klu4) <8) do klu4: = klu4 + 0 "; Formirovanie_16_podklju4ei (klu4);
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_ECB ('20. Txt ',' DES_crypted \ Z_20_6_ECB.txt '); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_ECB ("50. Txt ',' DES_crypted \ Z_50_6_ECB.txt '); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_ECB ('100. Txt ',' DES_crypted \ Z_100_6_ECB.txt '); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_ECB ('500. Txt ',' DES_crypted \ Z_500_6_ECB.txt '); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_ECB ('1. Txt ',' DES_crypted \ Z_1_6_ECB.txt '); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - (t1)) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / Raswifrovanie failov klju4om na 6 bait procedure TForm1.Button4Click (Sender: TObject); var klu4: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit11.text; while (Length (klu4) <8) do klu4: = klu4 + 0 "; Formirovanie_16_podklju4ei (klu4);
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_20_6_ECB.txt', 'DES_uncrypted \ R_20_6_ECB.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_50_6_ECB.txt', 'DES_uncrypted \ R_50_6_ECB.txt'); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_100_6_ECB.txt', 'DES_uncrypted \ R_100_6_ECB.txt'); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_500_6_ECB.txt', 'DES_uncrypted \ R_500_6_ECB.txt'); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_1_6_ECB.txt', 'DES_uncrypted \ R_1_6_ECB.txt'); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек'; Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / Zawifrovanie failov klju4om na 7 bait procedure TForm1.Button5Click (Sender: TObject); var klu4: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit12.text; while (Length (klu4) <8) do klu4: = klu4 + 0 "; Formirovanie_16_podklju4ei (klu4);
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_ECB ('20. Txt ',' DES_crypted \ Z_20_7_ECB.txt '); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_ECB ("50. Txt ',' DES_crypted \ Z_50_7_ECB.txt '); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_ECB ('100. Txt ',' DES_crypted \ Z_100_7_ECB.txt '); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_ECB ('500. Txt ',' DES_crypted \ Z_500_7_ECB.txt '); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_ECB ('1. Txt ',' DES_crypted \ Z_1_7_ECB.txt '); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / Raswifrovanie failov klju4om na 7 bait procedure TForm1.Button6Click (Sender: TObject); var klu4: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit12.text; while (Length (klu4) <8) do klu4: = klu4 + 0 "; Formirovanie_16_podklju4ei (klu4);
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_20_7_ECB.txt', 'DES_uncrypted \ R_20_7_ECB.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_50_7_ECB.txt', 'DES_uncrypted \ R_50_7_ECB.txt'); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_100_7_ECB.txt', 'DES_uncrypted \ R_100_7_ECB.txt'); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_500_7_ECB.txt', 'DES_uncrypted \ R_500_7_ECB.txt'); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_ECB ('DES_crypted \ Z_1_7_ECB.txt', 'DES_uncrypted \ R_1_7_ECB.txt'); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / CBC zawifrovanie failov klju4om na 5 bait procedure TForm1.Button7Click (Sender: TObject); var klu4: string; vektor: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit10.text; while (Length (klu4) <8) do klu4: = klu4 + '*'; Formirovanie_16_podklju4ei (klu4);
vektor: = Edit1.text; while (Length (vektor) <8) do vektor: = vektor + 0 ";
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_CBC ('20. Txt ',' DES_crypted \ Z_20_5_CB С. Txt ', vektor); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_CBC ("50. Txt ',' DES_crypted \ Z_50_5_CB С. Txt ', vektor); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_CBC ('100. Txt ',' DES_crypted \ Z_100_5_CB С. Txt ', vektor); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_CBC ('500. Txt ',' DES_crypted \ Z_500_5_CB С. Txt ', vektor); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_CBC ('1. Txt ',' DES_crypted \ Z_1_5_CB С. Txt ', vektor); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label34.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end; / / CBC raswifrovanie failov klju4om na 5 bait procedure TForm1.Button8Click (Sender: TObject); var klu4: string; vektor: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit10.text; while (Length (klu4) <8) do klu4: = klu4 + '*'; Formirovanie_16_podklju4ei (klu4);
vektor: = Edit1.text; while (Length (vektor) <8) do vektor: = vektor + 0 ";
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_20_5_CB С. Txt', 'DES_uncrypted \ R_20_5_CB С. Txt', vektor); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_50_5_CB С. Txt', 'DES_uncrypted \ R_50_5_CB С. Txt', vektor); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_100_5_CB С. Txt', 'DES_uncrypted \ R_100_5_CB С. Txt', vektor); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_500_5_CB С. Txt', 'DES_uncrypted \ R_500_5_CB С. Txt', vektor); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_1_5_CB С. Txt', 'DES_uncrypted \ R_1_5_CB С. Txt', vektor); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end; / / CBC zawifrovanie failov klju4om na 6 bait procedure TForm1.Button9Click (Sender: TObject); var klu4: string; vektor: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit11.text; while (Length (klu4) <8) do klu4: = klu4 + '*'; Formirovanie_16_podklju4ei (klu4);
vektor: = Edit1.text; while (Length (vektor) <8) do vektor: = vektor + 0 ";
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_CBC ('20. Txt ',' DES_crypted \ Z_20_6_CB С. Txt ', vektor); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_CBC ("50. Txt ',' DES_crypted \ Z_50_6_CB С. Txt ', vektor); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_CBC ('100. Txt ',' DES_crypted \ Z_100_6_CB С. Txt ', vektor); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_CBC ('500. Txt ',' DES_crypted \ Z_500_6_CB С. Txt ', vektor); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_CBC ('1. Txt ',' DES_crypted \ Z_1_6_CB С. Txt ', vektor); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / CBC raswifrovanie failov klju4om na 6 bait procedure TForm1.Button10Click (Sender: TObject); var klu4: string; vektor: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit11.text; while (Length (klu4) <8) do klu4: = klu4 + '*'; Formirovanie_16_podklju4ei (klu4);
vektor: = Edit1.text; while (Length (vektor) <8) do vektor: = vektor + 0 ";
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_20_6_CB С. Txt', 'DES_uncrypted \ R_20_6_CB С. Txt', vektor); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_50_6_CB С. Txt', 'DES_uncrypted \ R_50_6_CB С. Txt', vektor); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_100_6_CB С. Txt', 'DES_uncrypted \ R_100_6_CB С. Txt', vektor); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_500_6_CB С. Txt', 'DES_uncrypted \ R_500_6_CB С. Txt', vektor); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_1_6_CB С. Txt', 'DES_uncrypted \ R_1_6_CB С. Txt', vektor); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60); Label33.Caption: = IntToStr (vremja) + 'сек';
Label34.Caption: = FloatToStr (razmer / vremja) + 'байт / сек'; end; / / CBC zawifrovanie failov klju4om na 7 bait procedure TForm1.Button11Click (Sender: TObject); var klu4: string; vektor: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit12.text; while (Length (klu4) <8) do klu4: = klu4 + '*'; Formirovanie_16_podklju4ei (klu4);
vektor: = Edit1.text; while (Length (vektor) <8) do vektor: = vektor + 0 ";
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_CBC ('20. Txt ',' DES_crypted \ Z_20_7_CB С. Txt ', vektor); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_CBC ("50. Txt ',' DES_crypted \ Z_50_7_CB С. Txt ', vektor); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_CBC ('100. Txt ',' DES_crypted \ Z_100_7_CB С. Txt ', vektor); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_CBC ('500. Txt ',' DES_crypted \ Z_500_7_CB С. Txt ', vektor); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_CBC ('1. Txt ',' DES_crypted \ Z_1_7_CB С. Txt ', vektor); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'сек';
Label34.Caption: = FloatToStr (razmer/vremja-1) + 'байт / сек'; end;
/ / CBC raswifrovanie failov klju4om na 7 bait procedure TForm1.Button12Click (Sender: TObject); var klu4: string; vektor: string; t1, t2: TDateTime; vremja: integer; razmer: integer; begin klu4: = Edit12.text; while (Length (klu4) <8) do klu4: = klu4 + '*'; Formirovanie_16_podklju4ei (klu4);
vektor: = Edit1.text; while (Length (vektor) <8) do vektor: = vektor + 0 ";
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_20_7_CB С. Txt', 'DES_uncrypted \ R_20_7_CB С. Txt', vektor); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_50_7_CB С. Txt', 'DES_uncrypted \ R_50_7_CB С. Txt', vektor); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_100_7_CB С. Txt', 'DES_uncrypted \ R_100_7_CB С. Txt', vektor); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_500_7_CB С. Txt', 'DES_uncrypted \ R_500_7_CB С. Txt', vektor); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_CBC ('DES_crypted \ Z_1_7_CB С. Txt', 'DES_uncrypted \ R_1_7_CB С. Txt', vektor); razmer: = 1024 * 1024; end;
t2: = Time; vremja: = round ((t2 - t1) * 24 * 60 * 60); Label33.Caption: = IntToStr (vremja) + 'сек';
Label34.Caption: = FloatToStr (razmer / vremja) + 'байт / сек'; end;
/ / S4itivaem alfavit dlja RSA procedure TForm1.FormCreate (Sender: TObject); begin alf: = Form1.Label38.Caption; end;
/ / Generacija prostih 4isel s pomowiju reweta Eratosfena procedure TForm1.Button13Click (Sender: TObject); const n = 5000; var a: array [2 .. n] of boolean; i, j: integer; begin
for i: = 2 to n do a [i]: = false;
for i: = 2 to n do begin if (a [i] = false) then begin j: = 2; while i * j <= n do begin a [i * j]: = true; j: = j +1; end; end; end;
ListBox4.Clear;
for i: = 1 to n do begin if (a [i] = false) then ListBox4.Items.Add (IntToStr (i)); end;
end;
/ / Generacija vozmognih variantov klju4a Ka procedure TForm1.Button14Click (Sender: TObject); var i: integer; f: int64; / / 4islo vzaimno prostih 4isel s N N, P, Q: int64; x, y: int64; k: integer; begin P: = StrToInt (Edit5.Text); Q: = StrToInt (Edit4.Text); N: = Q * P;
/ / Vi4isljaem koli4estvo vzaimno prostih s N 4isel f: = (P-1) * (Q-1);
/ / Vivodim vse vozmognie Ka ListBox3.Clear; k: = 0; for i: = (f div 2) to f do begin if (NOD (i, f, x, y) = 1) then begin ListBox3.Items.Add (IntToStr (i)); inc (k); if k = 100 then break; end; end; end; / / Zawifrovanie failov klju4om Ka procedure TForm1.Button15Click (Sender: TObject); var Ka: int64; Kb: int64; Q, P: int64; i: integer; t1, t2: TDateTime; vremja: integer; razmer: integer; begin P: = StrToInt (Edit5.Text); / / S4itivaem P Q: = StrToInt (Edit4.Text); / / S4itivaem Q
if (ListBox3.ItemIndex <> -1) then begin Ka: = StrToInt (ListBox3.Items [ListBox3.ItemIndex ]);// Opredeljaem sly4ainim obrazom Ka Kb: = -1;
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Wifrovanie_RSA (Ka, P, Q, '20RSA. Txt ',' RSA_crypted \ Z_20_RSA.txt ', Kb); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Wifrovanie_RSA (Ka, P, Q, '50RSA. Txt ',' RSA_crypted \ Z_50_RSA.txt ', Kb); razmer: = 1024 * 50; end; if Form1.RadioButton8.Checked = true then begin Wifrovanie_RSA (Ka, P, Q, '100RSA. Txt ',' RSA_crypted \ Z_100_RSA.txt ', Kb); razmer: = 1024 * 100; end; if Form1.RadioButton7.Checked = true then begin Wifrovanie_RSA (Ka, P, Q, '500RSA. Txt ',' RSA_crypted \ Z_500_RSA.txt ', Kb); razmer: = 1024 * 500; end; if Form1.RadioButton6.Checked = true then begin Wifrovanie_RSA (Ka, P, Q, '1 RSA.txt ',' RSA_crypted \ Z_1_RSA.txt ', Kb); razmer: = 1024 * 1024; end;
t2: = Time; end;
Label13.Caption: = IntToStr (Ka);; / / Vivodin Ka Label12.Caption: = IntToStr (Kb); / / Vivodim Kb
vremja: = round ((t2 - (t1 +0.0000001)) * 24 * 60 * 60 * 1000); Label33.Caption: = (IntToStr (vremja-round (0.0000001))) + 'мілісек';
Label34.Caption: = FloatToStr ((razmer / vremja) -0.0000001) + 'байт / мілісек'; end;
/ / Raswifrovat faili klju4om Ka1 procedure TForm1.Button16Click (Sender: TObject); var Ka: int64; Kb: int64; Q, P: int64; i: integer; ish_f, vihod_f: TextFile; t1, t2: TDateTime; vremja: integer; razmer: integer; begin
P: = StrToInt (Edit5.Text); / / S4itivaem P Q: = StrToInt (Edit4.Text); / / S4itivaem Q
if (ListBox3.ItemIndex <> -1) then begin Ka: = StrToInt (ListBox3.Items [ListBox3.ItemIndex ]);// Opredeljaem sly4ainim obrazom Ka Kb: = StrToInt (Label12.Caption);
t1: = Time;
if Form1.RadioButton10.Checked = true then begin Raswifrovanie_RSA (Kb, P, Q, 'RSA_crypted \ Z_20_RSA.txt', 'RSA_uncrypted \ R_20_RSA.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton9.Checked = true then begin Raswifrovanie_RSA (Kb, P, Q, 'RSA_crypted \ Z_50_RSA.txt', 'RSA_uncrypted \ R_50_RSA.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton8.Checked = true then begin Raswifrovanie_RSA (Kb, P, Q, 'RSA_crypted \ Z_100_RSA.txt', 'RSA_uncrypted \ R_100_RSA.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton7.Checked = true then begin Raswifrovanie_RSA (Kb, P, Q, 'RSA_crypted \ Z_500_RSA.txt', 'RSA_uncrypted \ R_500_RSA.txt'); razmer: = 1024 * 20; end; if Form1.RadioButton6.Checked = true then begin Raswifrovanie_RSA (Kb, P, Q, 'RSA_crypted \ Z_1_RSA.txt', 'RSA_uncrypted \ R_1_RSA.txt'); razmer: = 1024 * 20; end; t2: = Time; end;
vremja: = round ((t2 - t1) * 24 * 60 * 60) +1; Label33.Caption: = IntToStr (vremja-1) + 'мілісек';
Label34.Caption: = FloatToStr ((razmer / vremja) -1) + 'байт / сек'; end;
end.
unit DES_ECB_CBC_unit;
interface
procedure Wifrovanie_ECB (nazv_ish_f: string; nazv_vih_f: string); procedure Raswifrovanie_ECB (nazv_ish_f: string; nazv_vih_f: string); procedure Wifrovanie_CBC (nazv_ish_f: string; nazv_vih_f: string; vektor: string); procedure Raswifrovanie_CBC (nazv_ish_f: string; nazv_vih_f: string; vektor: string);
implementation uses DES_unit;
procedure Wifrovanie_ECB (nazv_ish_f: string; nazv_vih_f: string); var i: integer; ish_text, vihod_text: string; bykva: byte; ish_f, vihod_f: file of byte; begin
assignfile (ish_f, nazv_ish_f); reset (ish_f);
assignfile (vihod_f, nazv_vih_f); rewrite (vihod_f); while not EOF (ish_f) do begin read (ish_f, bykva); ish_text: = ish_text + chr (bykva); if Length (ish_text) = 8 then begin vihod_text: = Kodirovat (ish_text); for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; ish_text: =''; end; end;
if (Length (ish_text) <> 0) then begin while length (ish_text) <8 do ish_text: = ish_text + 0 "; vihod_text: = Kodirovat (ish_text); for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; end;
end; procedure Raswifrovanie_ECB (nazv_ish_f: string; nazv_vih_f: string); var i: integer; ish_text, vihod_text: string; bykva: byte; ish_f, vihod_f: file of byte; begin
assignfile (ish_f, nazv_ish_f); reset (ish_f);
assignfile (vihod_f, nazv_vih_f); rewrite (vihod_f);
while not EOF (ish_f) do begin read (ish_f, bykva); ish_text: = ish_text + chr (bykva); if Length (ish_text) = 8 then begin vihod_text: = Raskodirovat (ish_text); for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; ish_text: =''; end; end; if (Length (ish_text) <> 0) then begin while length (ish_text) <8 do ish_text: = ish_text + 0 "; vihod_text: = Raskodirovat (ish_text); for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; end;
end;
procedure Wifrovanie_CBC (nazv_ish_f: string; nazv_vih_f: string; vektor: string); var i: integer; ish_text, vihod_text: string; bykva: byte; ish_f, vihod_f: file of byte; begin
assignfile (ish_f, nazv_ish_f); reset (ish_f);
assignfile (vihod_f, nazv_vih_f); rewrite (vihod_f);
while not EOF (ish_f) do begin read (ish_f, bykva); ish_text: = ish_text + chr (bykva); if Length (ish_text) = 8 then begin for i: = 1 to 8 do ish_text [i]: = chr (ord (ish_text [i]) xor ord (vektor [i])); vihod_text: = Kodirovat (ish_text); vektor: = vihod_text; for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; ish_text: =''; end; end;
if (Length (ish_text) <> 0) then begin while length (ish_text) <8 do ish_text: = ish_text + 0 "; for i: = 1 to 8 do ish_text [i]: = chr (ord (ish_text [i]) xor ord (vektor [i])); vihod_text: = Kodirovat (ish_text); for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; end;
end;
procedure Raswifrovanie_CBC (nazv_ish_f: string; nazv_vih_f: string; vektor: string); var i: integer; ish_text, vihod_text, tmp: string; bykva: byte; ish_f, vihod_f: file of byte; begin
assignfile (ish_f, nazv_ish_f); reset (ish_f);
assignfile (vihod_f, nazv_vih_f); rewrite (vihod_f);
while not EOF (ish_f) do begin read (ish_f, bykva); ish_text: = ish_text + chr (bykva); if Length (ish_text) = 8 then begin tmp: = ish_text; vihod_text: = Raskodirovat (ish_text); for i: = 1 to 8 do vihod_text [i]: = chr (ord (vihod_text [i]) xor ord (vektor [i])); vektor: = tmp; for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; ish_text: =''; end; end;
if (Length (ish_text) <> 0) then begin while length (ish_text) <8 do ish_text: = ish_text + 0 "; tmp: = ish_text; vihod_text: = Raskodirovat (ish_text); for i: = 1 to 8 do vihod_text [i]: = chr (ord (vihod_text [i]) xor ord (vektor [i])); vektor: = tmp; for i: = 1 to 8 do begin bykva: = byte (vihod_text [i]); write (vihod_f, bykva); end; end;
end;
end.
unit DES_unit;
interface
type odnom_1_64 = array [1 .. 64] of byte; type odnom_1_56 = array [1 .. 56] of byte; type odnom_1_48 = array [1 .. 48] of byte; type odnom_1_32 = array [1 .. 32] of byte; type dvym_1_17_1_32 = array [1 .. 17,1 .. 32] of byte; type dvym_1_17_1_28 = array [1 .. 17,1 .. 28] of byte; type dvym_1_16_1_48 = array [1 .. 16,1 .. 48] of byte; / / 16 підключений
procedure Perestanovka_IP (var Klju4_64_posle_IP: odnom_1_64); procedure Perestanovka_E (n: integer; Tekst_32_do_E: dvym_1_17_1_32; var Tekst_48_posle_E: odnom_1_48); procedure Perestanovka_P (var Tekst_32_posle_P: odnom_1_32); procedure S_Blok (e: odnom_1_48; var p: odnom_1_32); procedure Perestanovka_IP_1 (var Tekst_64_posle_IP1: odnom_1_64);
procedure TextVBinarn (Tekst_bykv: string; var Tekst_64_binar: odnom_1_64); procedure BinarnVText (Tekst_64_binar: odnom_1_64; var Tekst_bykv: string); function Kodirovat (Ish_tekst_bykv: string): string; function Raskodirovat (Wifr_tekst_bykv: string): string;
implementation
uses podkluchi_unit;
var matrica_IP: array [1 .. 64] of byte = (58, 50, 42, 34, 26, 18, 10, 02, 60, 52, 44, 36, 28, 20, 12, 04, 62, 54, 46, 38, 30, 22, 14, 06, 64, 56, 48, 40, 32, 24, 16, 08, 57, 49, 41, 33, 25, 17, 09, 01, 59, 51, 43, 35, 27, 19, 11, 03, 61, 53, 45, 37, 29, 21, 13, 05, 63, 55, 47, 39, 31, 23, 15, 07); matrica_E: array [1 .. 48] of byte = (32, 01, 02, 03, 04, 05, 04, 05, 06, 07, 08, 09, 08, 09, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 01); matrica_P: array [1 .. 32] of byte = (16, 07, 20, 21, 29, 12, 28, 17, 01, 15, 23, 26, 05, 18, 31, 10, 02, 08, 24, 14, 32, 27, 03, 09, 19, 13, 30, 06, 22, 11, 04, 25); matrica_IP_1: array [1 .. 64] of byte = (40, 08, 48, 16, 56, 24, 64, 32, 39, 07, 47, 15, 55, 23, 63, 31, 38, 06, 46, 14, 54, 22, 62, 30, 37, 05, 45, 13, 53, 21, 61, 29, 36, 04, 44, 12, 52, 20, 60, 28, 35, 03, 43, 11, 51, 19, 59, 27, 34, 02, 42, 10, 50, 18, 58, 26, 33, 01, 41, 09, 49, 17, 57, 25); procedure Perestanovka_IP (var Klju4_64_posle_IP: odnom_1_64); var Vrem_klju4_64: odnom_1_64; i: integer; begin / / Kopirivanie binarnogo predstavlenia for i: = 1 to 64 do Vrem_klju4_64 [i]: = Klju4_64_posle_IP [i];
/ / IP perestanovka for i: = 1 to 64 do Klju4_64_posle_IP [i]: = Vrem_klju4_64 [matrica_IP [i]];
end;
procedure Perestanovka_E (n: integer; Tekst_32_do_E: dvym_1_17_1_32; var Tekst_48_posle_E: odnom_1_48); var i: integer; begin
for i: = 1 to 48 do Tekst_48_posle_E [i]: = Tekst_32_do_E [n, matrica_E [i]]; end; procedure Perestanovka_P (var Tekst_32_posle_P: odnom_1_32); var i: integer; Vrem_tekst_32: odnom_1_32; begin
/ / Kopiy binarnogo predstavlenia for i: = 1 to 32 do Vrem_tekst_32 [i]: = Tekst_32_posle_P [i];
/ / P perestanovka bit for i: = 1 to 32 do Tekst_32_posle_P [i]: = Vrem_tekst_32 [matrica_P [i]];
end;
procedure S_Blok (e: odnom_1_48; var p: odnom_1_32); var q, i, j: integer; / / s4et4iki k: integer; / / 4islo na perese4enii neobhodimoi stro4ki i stolbika h: integer; symma_2_krainih, symma_4_vnytrennih: integer; s_blok: array [0 .. 3,0 .. 15] of byte; B_dvym_8_6: array [1 .. 8,1 .. 6] of byte; f: textfile; begin
/ / Razbitie na 8 4astei po 6 bit q: = 0; for i: = 1 to 8 do for j: = 1 to 6 do begin q: = q +1; B_dvym_8_6 [i, j]: = e [q]; end;
/ / S4itivaem S blok AssignFile (f, 'S.txt'); Reset (f);
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! for q: = 1 to 8 do begin symma_2_krainih: = B_dvym_8_6 [q, 6] + B_dvym_8_6 [q, 1] * 2; symma_4_vnytrennih: = B_dvym_8_6 [q, 2] +2 * B_dvym_8_6 [q, 3] +4 * B_dvym_8_6 [q, 4] +8 * B_dvym_8_6 [q, 5]; for i: = 0 to 3 do for j: = 0 to 15 do read (f, s_blok [i, j]); k: = s_blok [symma_2_krainih, symma_4_vnytrennih]; h: = 4 * q; for j: = 1 to 4 do begin p [h]: = k mod 2; k: = k div 2; h: = h-1; end end;
closefile (f);
end;
procedure Perestanovka_IP_1 (var Tekst_64_posle_IP1: odnom_1_64); var Vrem_tekst_64: odnom_1_64; i: integer; begin / / Kopiy binarnogo predstavlenia for i: = 1 to 64 do Vrem_tekst_64 [i]: = Tekst_64_posle_IP1 [i];
/ / IP perestanovka bit for i: = 1 to 64 do Tekst_64_posle_IP1 [i]: = Vrem_tekst_64 [matrica_IP_1 [i]];
end;
/ / Perevodit text v binarnoe predstavlenie procedure TextVBinarn (Tekst_bykv: string; var Tekst_64_binar: odnom_1_64); var j, h, a, i: integer; alfav_ASCII: array [1 .. 8] of integer; begin / / Perevod simvolov v ASCII-kodi for i: = 1 to 8 do alfav_ASCII [i]: = ord (Tekst_bykv [i ]);// vozvrawaet № simvola v ASC
/ / Perevod chisel v binarniy kod for j: = 1 to 8 do begin h: = 8 * j; a: = alfav_AscII [j]; for i: = 1 to 8 do begin Tekst_64_binar [h]: = a mod 2; a: = a div 2; / / sdvig vpravo na 1 h: = h-1; end end;
end;
//++++++++++++++++++++++++++++++++++++++++++++++++ +++++++ / / Perevodit binarnoe predstavlenie v tekst procedure BinarnVText (Tekst_64_binar: odnom_1_64; var Tekst_bykv: string); var Vrem_tekst: string; a, i, j: integer; begin
Vrem_tekst :=''; for i: = 1 to 8 do begin a: = 0; for j: = (i-1) * 8 +1 to i * 8 do a: = a * 2 + Tekst_64_binar [j]; Vrem_tekst: = concat (Vrem_tekst, char (a ));// prilirljaet ksa end; Tekst_bykv: = Vrem_tekst; end; function Kodirovat (Ish_tekst_bykv: string): string; var Ish_tekst_64_binar: odnom_1_64; i, j: integer; levaja, pravaja: dvym_1_17_1_32; Tekst_48_posle_raswirenija: odnom_1_48; B_tekst_32: odnom_1_32; begin
TextVBinarn (Ish_tekst_bykv, Ish_tekst_64_binar);
Perestanovka_IP (Ish_tekst_64_binar);
/ / Delim na levyju i na pravyju 4asti j: = 0; for i: = 1 to 64 do if i <33 then levaja [1, i]: = Ish_tekst_64_binar [i] else begin j: = j +1; pravaja [1, j]: = Ish_tekst_64_binar [i]; end;
/ / 16 rayndov wifrovanija for i: = 2 to 17 do begin for j: = 1 to 32 do levaja [i, j]: = pravaja [i-1, j]; Perestanovka_E (i-1, pravaja, Tekst_48_posle_raswirenija); for j: = 1 to 48 do Tekst_48_posle_raswirenija [j]: = Tekst_48_posle_raswirenija [j] xor podklu4i [i-1, j]; s_blok (Tekst_48_posle_raswirenija, B_tekst_32); Perestanovka_P (B_tekst_32); for j: = 1 to 32 do pravaja [i, j]: = levaja [i-1, j] xor B_tekst_32 [j]; end;
//!!! / / Menjaem mestami for i: = 1 to 32 do begin j: = pravaja [17] [i]; pravaja [17] [i]: = levaja [17] [i]; levaja [17] [i]: = j; end;
/ / Skladivanie levoi i pravoi j: = 0; for i: = 1 to 64 do if i <33 then Ish_tekst_64_binar [i]: = levaja [17, i] else begin j: = j +1; Ish_tekst_64_binar [i]: = pravaja [17, j]; end;
Perestanovka_IP_1 (Ish_tekst_64_binar);
BinarnVText (Ish_tekst_64_binar, Ish_tekst_bykv);
kodirovat: = Ish_tekst_bykv; end; function Raskodirovat (Wifr_tekst_bykv: string): string; var Wifr_tekst_64_binar: odnom_1_64; i, j: integer; levaja, pravaja: dvym_1_17_1_32; Tekst_48_posle_raswirenija: odnom_1_48; B_tekst_32: odnom_1_32; begin
TextVBinarn (Wifr_tekst_bykv, Wifr_tekst_64_binar);
Perestanovka_IP (Wifr_tekst_64_binar);
/ / Delim na levyju i na pravyju 4asti j: = 0; for i: = 1 to 64 do if i <33 then levaja [17, i]: = Wifr_tekst_64_binar [i] else begin j: = j +1; pravaja [17, j]: = Wifr_tekst_64_binar [i]; end;
//!!!!!!!! / / Menjaem mestami for i: = 1 to 32 do begin j: = pravaja [17] [i]; pravaja [17] [i]: = levaja [17] [i]; levaja [17] [i]: = j; end; / / 16 raundov wifrovanija for i: = 17 downto 2 do begin for j: = 1 to 32 do pravaja [i-1, j]: = levaja [i, j]; Perestanovka_E (i, levaja, Tekst_48_posle_raswirenija); for j: = 1 to 48 do Tekst_48_posle_raswirenija [j]: = Tekst_48_posle_raswirenija [j] xor podklu4i [i-1, j]; s_blok (Tekst_48_posle_raswirenija, B_tekst_32); Perestanovka_P (B_tekst_32); for j: = 1 to 32 do levaja [i-1, j]: = pravaja [i, j] xor B_tekst_32 [j]; end;
/ / Skladivanie levoi i pravoi j: = 0; for i: = 1 to 64 do if i <33 then Wifr_tekst_64_binar [i]: = levaja [1, i] else begin j: = j +1; Wifr_tekst_64_binar [i]: = pravaja [1, j]; end;
Perestanovka_IP_1 (Wifr_tekst_64_binar);
BinarnVText (Wifr_tekst_64_binar, Wifr_tekst_bykv); Raskodirovat: = Wifr_tekst_bykv; end;
end. unit Podkluchi_unit;
interface uses DES_unit;
var podklu4i: dvym_1_16_1_48; matrica_PC1: array [1 .. 56] of byte = (57, 49, 41, 33, 25, 17, 09, 01, 58, 50, 42, 34, 26, 18, 10, 02, 59, 51, 43, 35, 27, 19, 11, 03, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 15, 07, 62, 54, 46, 38, 30, 22, 14, 06, 61, 53, 45, 37, 29, 21, 13, 05, 28, 20, 12, 04); matrica_PC2: array [1 .. 48] of byte = (14, 17, 11, 24, 01, 05, 03, 28, 15, 06, 21, 10, 23, 19, 12, 04, 26, 08, 16, 07, 27, 20, 13, 02, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32); matrica_sdvigov: array [1 .. 16] of byte = (1,1,2,2, 2,2,2,2, 1,2,2,2, 2,2,2,1);
procedure Formirovanie_16_podklju4ei (Klju4_64: string);
implementation //++++++++++++++++++++++++++++++++++++++++++++++++ +++++++ procedure Perestanovka_PC1 (Klju4_64_do_PC1: odnom_1_64; var Klju4_64_posle_PC1: odnom_1_56); var i: integer; begin for i: = 1 to 56 do Klju4_64_posle_PC1 [i]: = Klju4_64_do_PC1 [matrica_PC1 [i]]; end;
//++++++++++++++++++++++++++++++++++++++++++++++++ +++++++ procedure Perestanovka_PC2 (Klju4_56_do_PC2: odnom_1_56; k: integer); var i: integer; begin for i: = 1 to 48 do podklu4i [k] [i]: = Klju4_56_do_PC2 [matrica_PC2 [i]]; end;
//++++++++++++++++++++++++++++++++++++++++++++++++ +++++++ procedure Formirovanie_16_podklju4ei (Klju4_64: string); var i, j, k: integer; c_vrem, d_vrem: dvym_1_17_1_28; c: dvym_1_17_1_28; d: dvym_1_17_1_28; c_d: odnom_1_56; Klju4ik_64: odnom_1_64; Klju4ik_56: odnom_1_56; begin
TextVBinarn (Klju4_64, Klju4ik_64); / / ключ з 64 в 64
Perestanovka_PC1 (Klju4ik_64, Klju4ik_56); / / бітовий ключ 64, бітовий ключ 56
/ / Razbivaem na cid j: = 0; for i: = 1 to 56 do if i <29 then c [1, i]: = Klju4ik_56 [i] else begin j: = j +1; d [1, j]: = Klju4ik_56 [i]; end;
/ / Kopiryem з id vo vremennie c_vrem i d_vrem for j: = 1 to 28 do begin c_vrem [1, j]: = c [1, j]; d_vrem [1, j]: = d [1, j]; end;
//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!! / / Delaem sdvigi LSi for i: = 2 to 17 do begin k: = 0; for j: = 1 to 28 do if j + matrica_sdvigov [i-1]> 28 then begin k: = k +1; c [i, j]: = c_vrem [i-1, k]; d [i, j]: = d_vrem [i-1, k]; c_vrem [i, j]: = c [i, j]; d_vrem [i, j]: = d [i, j]; end else begin c [i, j]: = c_vrem [i-1, j + matrica_sdvigov [i-1]]; d [i, j]: = d_vrem [i-1, j + matrica_sdvigov [i-1]]; c_vrem [i, j]: = c [i, j]; d_vrem [i, j]: = d [i, j]; end; end;
/ / Sobiraem з id vmeste for i: = 2 to 17 do begin k: = 0; for j: = 1 to 28 do begin k: = k +1; c_d [k]: = c [i, j]; end; for j: = 1 to 28 do begin k: = k +1; c_d [k]: = d [i, j]; end; Perestanovka_PC2 (c_d, i-1); end;
end;
end. unit RSA_unit;
interface
function NOD (a {3}: int64; b {fi}: int64; var x: int64; var y: int64): int64; function Nomer_v_alfavite (a: char): byte; function Vozvedenie_po_modylju (osnovanie: int64; stepen: int64; modyl: int64): int64; procedure Wifrovanie_RSA (Ka: int64; P: int64; Q: int64; nazv_ish_f: string; nazv_vih_f: string; var Kb: int64); procedure RasWifrovanie_RSA (Kb: int64; P: int64; Q: int64; nazv_ish_f: string; nazv_vih_f: string);
var alf: string;
implementation
function Vozvedenie_v_stepen (osnovanie: int64; stepen: int64): int64; var rez: longint; i: longint; begin rez: = 1;
for i: = 1 to stepen do rez: = rez * osnovanie;
Vozvedenie_v_stepen: = rez; end;
function Vozvedenie_po_modylju (osnovanie: int64; stepen: int64; modyl: int64): int64; var rez: int64; i: longint; t: int64; / / osnovanie vo vremennoi stepeni begin rez: = 1; t: = osnovanie;
while (stepen <> 0) do begin if (stepen mod 2 = 1) then rez: = (rez * t) mod modyl; t: = (t * t) mod modyl; stepen: = stepen div 2; end;
Vozvedenie_po_modylju: = rez; end;
/ / Vozvrawaet nomer bykvi v alfavite function Nomer_v_alfavite (a: char): byte; var i: byte; begin i: = 0;
while ((i <= Length (alf)) and (alf [i +1] <> a)) do i: = i +1;
Nomer_v_alfavite: = i; end;
/ / Naibolwii obwii delitel function NOD (a {3}: int64; b {fi}: int64; var x: int64; var y: int64): int64; var x1, y1: longint; x2, y2: longint; q: longint; r: longint; begin if (b = 0) then begin NOD: = a; x: = 1; y: = 0; end else begin x2: = 1; x1: = 0; y2: = 0; y1: = 1; while (b> 0) do begin q: = a div b; r: = aq * b; x: = x2-q * x1; y: = y2-q * y1; a: = b; b: = r; x2: = x1; x1: = x; y2: = y1; y1: = y; end; NOD: = a; x: = x2; y: = y2; end;
end;
/ / RSA wifrovanie failov procedure Wifrovanie_RSA (Ka: int64; P: int64; Q: int64; nazv_ish_f: string; nazv_vih_f: string; var Kb: int64); var N: int64; M, C: int64; f: int64; / / 4islo vzaimnoprostih 4isel s N i: integer;
ish_text, vihod_text: string; bykva: char; ish_f, vihod_f: TextFile;
begin
N: = Q * P; / / Nahodim N f: = (P-1) * (Q-1); / / Nahodin 4islo vzaimnoprostih 4isel s N NOD (Ka, f, Kb, M); / / Nahodim Kb
while (Kb <0) do Kb: = Kb + f; / / Esli Kb otricatelno to yveli4ivaem ego
assignfile (ish_f, nazv_ish_f); reset (ish_f);
assignfile (vihod_f, nazv_vih_f); rewrite (vihod_f);
while not EOF (ish_f) do begin read (ish_f, bykva); C: = Nomer_v_alfavite (bykva); C: = Vozvedenie_po_modylju (C, Ka, N); writeln (vihod_f, C); end; closefile (ish_f); closefile (vihod_f); end;
/ / RSA raswifrovanie failov procedure RasWifrovanie_RSA (Kb: int64; P: int64; Q: int64; nazv_ish_f: string; nazv_vih_f: string); var N: int64; M, C: int64; f: int64; / / 4islo vzaimnoprostih 4isel s N i: integer; ish_text, vihod_text: string; bykva: char; ish_f, vihod_f: TextFile; begin
N: = Q * P; / / Nahodim N f: = (P-1) * (Q-1); / / Nahodin 4islo vzaimnoprostih 4isel s N
assignfile (ish_f, nazv_ish_f); reset (ish_f);
assignfile (vihod_f, nazv_vih_f); rewrite (vihod_f);
while not EOF (ish_f) do begin readln (ish_f, C); C: = Vozvedenie_po_modylju (C, Kb, N); bykva: = alf [C +1]; write (vihod_f, bykva); end; closefile (ish_f); closefile (vihod_f); end;
end.
Зашифрований і разшіфрованний текст записується в директорію з вихідним файлом. Скріншоти роботи програми
Висновки
В результаті виконання даної роботи були отримані практичні навички використання сучасних як симетричних (DES), так і асиметричних (RSA) алгоритмів шифрування.
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