-- DES: test program

-- DESTest.mesa

-- Andrew Birrell   1-Mar-82 15:29:38
-- Michael D. Schroeder, November 4, 1981  10:29 AM--

DIRECTORY
Ascii		USING[ CR, SP ],
DESFace,
TTY,
String;

DESTest: PROGRAM IMPORTS DESFace, TTY, String =

BEGIN

OPEN DESFace, String;

h: TTY.Handle = TTY.Create["DESTest.log$"];

modeChar: CHARACTER; 
i: CARDINAL;

-- Test data that exercises every S-Box Entry
-- Source: Federal Register, XXX
-- Values in Hex
  -- (Key)                (Data)                (Cipher)
  -- 7CA110454A1A6E57   01A1D6D039776742   690F5B0D9A26939B
  -- 0131D9619DC1376E   5CD54CA83DEF57DA   7A389D10354BD271
  -- 07A1133E4A0B2686   0248D43806F67172   868EBB51CAB4599A
  -- 3849674C2602319E   51454B582DDF440A   7178876E01F19B2A
  -- 04B915BA43FEB5B6   42FD443059577FA2   AF37FB421F8C4095
  -- 0113B970FD34F2CE   059B5E0851CF143A   86A560F10EC6D85B
  -- 0170F175468FB5E6   0756D8E0774761D2   0CD3DA020021DC09
  -- 43297FAD38E373FE   762514B829BF486A   EA676B2CB7DB2B7A
  -- 07A7137045DA2A16   3BDD119049372802   DFD64A815CAF1A0F
  -- 04689104C2FD3B2F   26955F6835AF609A   5C513C9C4886C088
  -- 37D06BB516CB7546   164D5E404F275232   0A2AEEAE3FF4AB77
  -- 1F08260D1AC2465E   6B056E18759F5CCA   EF1BF03E5DFA575A
  -- 584023641ABA6176   004BD6EF09176062   88BF0DB6D70DEE56
  -- 025816164629B007   480D39006EE762F2   A1F9915541020B56
  -- 49793EBC79B3258F   437540C8698F3CFA   6FBF1CAFCFFD0556
  -- 4FB05E1515AB73A7   072D43A077075292   2F22E49BAB7CA1AC
  -- 49E95D6D4CA229BF   02FE55778117F12A   5A6B612CC26CCE4A
  -- 018310DC409B26D6   1D9D5C5018F728C2   5F4C038ED12B2E41
  -- 1C587F1C13924FEF   305532286D6F295A   63FAC0D034D9F793
  -- 0101010101010101   AAAAAAAAAAAAAAAA   3AE716954DC04E25
  -- 0101010101010101   0000000000000000   8CA64DE9C1B123A7

keySequence: ARRAY [0..20] OF Block _
    [Block[76241B, 10105B, 45032B, 67127B],
    Block[461B, 154541B, 116701B, 33556B],
    Block[3641B, 11476B, 45013B, 23206B],
    Block[34111B, 63514B, 23002B, 30636B],
    Block[2271B, 12672B, 41776B, 132666B],
    Block[423B, 134560B, 176464B, 171316B],
    Block[560B, 170565B, 43217B, 132746B],
    Block[41451B, 77655B, 34343B, 71776B],
    Block[3647B, 11560B, 42732B, 25026B],
    Block[2150B, 110404B, 141375B, 35457B],
    Block[33720B, 65665B, 13313B, 72506B],
    Block[17410B, 23015B, 15302B, 43136B],
    Block[54100B, 21544B, 15272B, 60566B],
    Block[1130B, 13026B, 43051B, 130007B],
    Block[44571B, 37274B, 74663B, 22617B],
    Block[47660B, 57025B, 12653B, 71647B],
    Block[44751B, 56555B, 46242B, 24677B],
    Block[603B, 10334B, 40233B, 23326B],
    Block[16130B, 77434B, 11622B, 47757B],
    Block[401B, 401B, 401B, 401B],
    Block[401B, 401B, 401B, 401B]];

dataSequence: ARRAY [0..20] OF Block _
    [Block[641B, 153320B, 34567B, 63502B],
    Block[56325B, 46250B, 36757B, 53732B],
    Block[1110B, 152070B, 3366B, 70562B],
    Block[50505B, 45530B, 26737B, 42012B],
    Block[41375B, 42060B, 54527B, 77642B],
    Block[2633B, 57010B, 50717B, 12072B],
    Block[3526B, 154340B, 73507B, 60722B],
    Block[73045B, 12270B, 24677B, 44152B],
    Block[35735B, 10620B, 44467B, 24002B],
    Block[23225B, 57550B, 32657B, 60232B],
    Block[13115B, 57100B, 47447B, 51062B],
    Block[65405B, 67030B, 72637B, 56312B],
    Block[113B, 153357B, 4427B, 60142B],
    Block[44015B, 34400B, 67347B, 61362B],
    Block[41565B, 40310B, 64617B, 36372B],
    Block[3455B, 41640B, 73407B, 51222B],
    Block[1376B, 52567B, 100427B, 170452B],
    Block[16635B, 56120B, 14367B, 24302B],
    Block[30125B, 31050B, 66557B, 24532B],
    Block[125252B, 125252B, 125252B, 125252B],
    Block[0B, 0B, 0B, 0B]];

cipherSequence: ARRAY [0..20] OF Block _
    [Block[64417B, 55415B, 115046B, 111633B],
    Block[75070B, 116420B, 32513B, 151161B],
    Block[103216B, 135521B, 145264B, 54632B],
    Block[70570B, 103556B, 761B, 115452B],
    Block[127467B, 175502B, 17614B, 40225B],
    Block[103245B, 60361B, 7306B, 154133B],
    Block[6323B, 155002B, 41B, 156011B],
    Block[165147B, 65454B, 133733B, 25572B],
    Block[157726B, 45201B, 56257B, 15017B],
    Block[56121B, 36234B, 44206B, 140210B],
    Block[5052B, 167256B, 37764B, 125567B],
    Block[167433B, 170076B, 56772B, 53532B],
    Block[104277B, 6666B, 153415B, 167126B],
    Block[120771B, 110525B, 40402B, 5526B],
    Block[67677B, 16257B, 147775B, 2526B],
    Block[27442B, 162233B, 125574B, 120654B],
    Block[55153B, 60454B, 141154B, 147112B],
    Block[57514B, 1616B, 150453B, 27101B],
    Block[61772B, 140320B, 32331B, 173623B],
    Block[35347B, 13225B, 46700B, 47045B],
    Block[106246B, 46751B, 140661B, 21647B]];

DO
      ENABLE BEGIN -- catch phrases--
         InvalidNumber =>
            BEGIN TTY.PutChar[h,Ascii.CR]; TTY.PutLine[h,"Invalid number -- start over."];
                  CONTINUE;
            END;
         TTY.Rubout =>
            BEGIN TTY.PutLine[h,"XXX"]; CONTINUE; END;
         END; -- catch phrases--
   TTY.PutString[h,
   "(C)bc, (E)cb, (F)ixed parameters, Q(uit), or R(andom key)? "L];
   DO
      modeChar _ TTY.GetChar[h];
      SELECT modeChar FROM
         'c, 'e, 'f, 'q, 'r => {TTY.PutChar[h,modeChar]; EXIT};
         ENDCASE;
      TTY.PutChar[h,'?];
      ENDLOOP;
   TTY.PutChar[h,Ascii.CR];
   SELECT modeChar FROM
     'q => EXIT;
     'r => BEGIN
           key: Key _ GetRandomKey[];
           keyWP: POINTER TO ARRAY [0 .. 3] OF UNSPECIFIED
               = LOOPHOLE[@key];
	   TTY.PutString[h,"Octal key is: "];
           FOR i IN [0 .. 3]
	   DO TTY.PutOctal[h,keyWP[i]]; TTY.PutChar[h,Ascii.SP]; ENDLOOP;
           TTY.PutChar[h,Ascii.CR];
           END;
     'f => BEGIN --fixed parameters tests--
           error: BOOLEAN _ FALSE;
           block: Block;
           FOR i IN [0 .. 20] DO
             EncryptBlock[LOOPHOLE[keySequence[i], Key],
	                  @dataSequence[i], @block];
             IF block # cipherSequence[i] THEN BEGIN
                TTY.PutString[h,"Encryption #"L];
                TTY.PutDecimal[h,LOOPHOLE[i, INTEGER]];
                TTY.PutLine[h," wrong."L];
                error _ TRUE
                END;
             DecryptBlock[LOOPHOLE[keySequence[i], Key],
	                  @cipherSequence[i], @block];
             IF block # dataSequence[i] THEN BEGIN
                TTY.PutString[h,"Decryption #"L];
                TTY.PutDecimal[h,LOOPHOLE[i, INTEGER]];
                TTY.PutLine[h," wrong."L];
                error _ TRUE
                END;
           ENDLOOP;
           IF NOT error THEN TTY.PutLine[h,"No errors in fixed parameters test."L];
           END --fixed parameters tests--;
      ENDCASE =>
            BEGIN --encryption and decryption tests--
            key: Key;
            keyWP: POINTER TO ARRAY [0 .. 3] OF UNSPECIFIED
               = LOOPHOLE[@key];
            blocks: ARRAY [0 .. 7] OF UNSPECIFIED;
            blocksLP: Blocks = LOOPHOLE[LONG[@blocks]];
            seed: IV;
            source: STRING _ [128];
         IF modeChar='c THEN BEGIN
            TTY.PutLine[h,"Type four octal numbers as chaining seed: "L];
            FOR i IN [0..3] DO seed[i] _ TTY.GetOctal[h]; TTY.PutChar[h,Ascii.SP]; ENDLOOP;
            TTY.PutChar[h,Ascii.CR];
            END;
         source.length _ 0;
         TTY.PutString[h,"Password?  "];
         TTY.GetLine[h,source];
         key _ MakeKey[LONG[source]];
         TTY.PutString[h,"Octal key is: "];
         FOR i IN [0 .. 3] DO TTY.PutOctal[h,keyWP[i]]; TTY.PutChar[h,Ascii.SP]; ENDLOOP;
         TTY.PutChar[h,Ascii.CR];
         IF modeChar='e
            THEN BEGIN
               TTY.PutLine[h,"Type four octal numbers as block to be encrypted: "];
               FOR i IN [0..3] DO blocks[i] _ TTY.GetOctal[h]; TTY.PutChar[h,Ascii.SP]; ENDLOOP;
               END
            ELSE BEGIN
               TTY.PutLine[h,"Type eight octal numbers as block to be encrypted: "];
               FOR i IN [0..7] DO blocks[i] _ TTY.GetOctal[h]; TTY.PutChar[h,Ascii.SP]; ENDLOOP;
               END;
         TTY.PutChar[h,Ascii.CR];
         IF modeChar='e
            THEN ECBEncrypt[key, 1, blocksLP, blocksLP]
            ELSE CBCEncrypt[key, 2, blocksLP, blocksLP, seed];
         TTY.PutString[h,"Encrypted value is: "];
         FOR i IN [0 .. IF modeChar='e THEN 3 ELSE 7] DO
            TTY.PutOctal[h,blocks[i]]; TTY.PutChar[h,Ascii.SP];
            ENDLOOP;
         TTY.PutChar[h,Ascii.CR];
         IF modeChar='c
            THEN CBCDecrypt[key, 2, blocksLP, blocksLP, seed]
            ELSE ECBDecrypt[key, 1, blocksLP, blocksLP];
         TTY.PutString[h,"Decrypted value is: "];
         FOR i IN [0 .. IF modeChar='e THEN 3 ELSE 7] DO
            TTY.PutOctal[h,blocks[i]]; TTY.PutChar[h,Ascii.SP];
            ENDLOOP;
         TTY.PutChar[h,Ascii.CR];
         END; --encryption and decryption tests--
ENDLOOP;

TTY.Destroy[h];

END.