clstwofish.cls

来自「vb md5 des等8种算法的加解密源码」· CLS 代码 · 共 1,201 行 · 第 1/3 页

  K = ROUND_SUBKEYS + 2 * ROUNDS - 1
  For R = 0 To ROUNDS - 1 Step 2
    If (m_RunningCompiled) Then
      t0 = Fe32(DWord(2), 0)
      t1 = Fe32(DWord(3), 3)
      t0 = t0 + t1
      DWord(1) = Rot1(DWord(1) Xor (t0 + t1 + sKey(K)))
      K = K - 1
      DWord(0) = Rot31(DWord(0)) Xor (t0 + sKey(K))
      K = K - 1
      t0 = Fe32(DWord(0), 0)
      t1 = Fe32(DWord(1), 3)
      t0 = t0 + t1
      DWord(3) = Rot1(DWord(3) Xor (t0 + t1 + sKey(K)))
      K = K - 1
      DWord(2) = Rot31(DWord(2)) Xor (t0 + sKey(K))
      K = K - 1
    Else
      t0 = Fe32(DWord(2), 0)
      t1 = Fe32(DWord(3), 3)
      t0 = UnsignedAdd(t0, t1)
      DWord(1) = Rot1(DWord(1) Xor (UnsignedAdd(UnsignedAdd(t0, t1), sKey(K))))
      K = K - 1
      DWord(0) = Rot31(DWord(0)) Xor (UnsignedAdd(t0, sKey(K)))
      K = K - 1
      t0 = Fe32(DWord(0), 0)
      t1 = Fe32(DWord(1), 3)
      t0 = UnsignedAdd(t0, t1)
      DWord(3) = Rot1(DWord(3) Xor (UnsignedAdd(UnsignedAdd(t0, t1), sKey(K))))
      K = K - 1
      DWord(2) = Rot31(DWord(2)) Xor (UnsignedAdd(t0, sKey(K)))
      K = K - 1
    End If
  Next
    
  DWord(0) = DWord(0) Xor sKey(INPUT_WHITEN)
  DWord(1) = DWord(1) Xor sKey(INPUT_WHITEN + 1)
  DWord(2) = DWord(2) Xor sKey(INPUT_WHITEN + 2)
  DWord(3) = DWord(3) Xor sKey(INPUT_WHITEN + 3)

End Sub
Private Static Function Rot1(Value As Long) As Long

  Dim Temp As Byte
  Dim x(0 To 3) As Byte
  
  Call CopyMem(x(0), Value, 4)
  
  Temp = x(0)
  x(0) = (x(0) \ 2) Or ((x(1) And 1) * 128)
  x(1) = (x(1) \ 2) Or ((x(2) And 1) * 128)
  x(2) = (x(2) \ 2) Or ((x(3) And 1) * 128)
  x(3) = (x(3) \ 2) Or ((Temp And 1) * 128)
  
  Call CopyMem(Rot1, x(0), 4)
  
End Function
Private Static Function Rot31(Value As Long) As Long

  Dim Temp As Byte
  Dim x(0 To 3) As Byte
  
  Call CopyMem(x(0), Value, 4)
  
  Temp = x(3)
  x(3) = ((x(3) And 127) * 2) Or -CBool(x(2) And 128)
  x(2) = ((x(2) And 127) * 2) Or -CBool(x(1) And 128)
  x(1) = ((x(1) And 127) * 2) Or -CBool(x(0) And 128)
  x(0) = ((x(0) And 127) * 2) Or -CBool(Temp And 128)
  
  Call CopyMem(Rot31, x(0), 4)
  
End Function

Private Sub Class_Initialize()
  
  Dim i As Long
  Dim j As Long
  Dim m1(0 To 1) As Long
  Dim mX(0 To 1) As Long
  Dim mY(0 To 1) As Long
  
  'We need to check if we are running in compiled
  '(EXE) mode or in the IDE, this will allow us to
  'use optimized code with unsigned integers in
  'compiled mode without any overflow errors when
  'running the code in the IDE
  On Local Error Resume Next
  m_RunningCompiled = ((2147483647 + 1) < 0)
  
  'Initialize P(0,..) array
  P(0, 0) = &HA9
  P(0, 1) = &H67
  P(0, 2) = &HB3
  P(0, 3) = &HE8
  P(0, 4) = &H4
  P(0, 5) = &HFD
  P(0, 6) = &HA3
  P(0, 7) = &H76
  P(0, 8) = &H9A
  P(0, 9) = &H92
  P(0, 10) = &H80
  P(0, 11) = &H78
  P(0, 12) = &HE4
  P(0, 13) = &HDD
  P(0, 14) = &HD1
  P(0, 15) = &H38
  P(0, 16) = &HD
  P(0, 17) = &HC6
  P(0, 18) = &H35
  P(0, 19) = &H98
  P(0, 20) = &H18
  P(0, 21) = &HF7
  P(0, 22) = &HEC
  P(0, 23) = &H6C
  P(0, 24) = &H43
  P(0, 25) = &H75
  P(0, 26) = &H37
  P(0, 27) = &H26
  P(0, 28) = &HFA
  P(0, 29) = &H13
  P(0, 30) = &H94
  P(0, 31) = &H48
  P(0, 32) = &HF2
  P(0, 33) = &HD0
  P(0, 34) = &H8B
  P(0, 35) = &H30
  P(0, 36) = &H84
  P(0, 37) = &H54
  P(0, 38) = &HDF
  P(0, 39) = &H23
  P(0, 40) = &H19
  P(0, 41) = &H5B
  P(0, 42) = &H3D
  P(0, 43) = &H59
  P(0, 44) = &HF3
  P(0, 45) = &HAE
  P(0, 46) = &HA2
  P(0, 47) = &H82
  P(0, 48) = &H63
  P(0, 49) = &H1
  P(0, 50) = &H83
  P(0, 51) = &H2E
  P(0, 52) = &HD9
  P(0, 53) = &H51
  P(0, 54) = &H9B
  P(0, 55) = &H7C
  P(0, 56) = &HA6
  P(0, 57) = &HEB
  P(0, 58) = &HA5
  P(0, 59) = &HBE
  P(0, 60) = &H16
  P(0, 61) = &HC
  P(0, 62) = &HE3
  P(0, 63) = &H61
  P(0, 64) = &HC0
  P(0, 65) = &H8C
  P(0, 66) = &H3A
  P(0, 67) = &HF5
  P(0, 68) = &H73
  P(0, 69) = &H2C
  P(0, 70) = &H25
  P(0, 71) = &HB
  P(0, 72) = &HBB
  P(0, 73) = &H4E
  P(0, 74) = &H89
  P(0, 75) = &H6B
  P(0, 76) = &H53
  P(0, 77) = &H6A
  P(0, 78) = &HB4
  P(0, 79) = &HF1
  P(0, 80) = &HE1
  P(0, 81) = &HE6
  P(0, 82) = &HBD
  P(0, 83) = &H45
  P(0, 84) = &HE2
  P(0, 85) = &HF4
  P(0, 86) = &HB6
  P(0, 87) = &H66
  P(0, 88) = &HCC
  P(0, 89) = &H95
  P(0, 90) = &H3
  P(0, 91) = &H56
  P(0, 92) = &HD4
  P(0, 93) = &H1C
  P(0, 94) = &H1E
  P(0, 95) = &HD7
  P(0, 96) = &HFB
  P(0, 97) = &HC3
  P(0, 98) = &H8E
  P(0, 99) = &HB5
  P(0, 100) = &HE9
  P(0, 101) = &HCF
  P(0, 102) = &HBF
  P(0, 103) = &HBA
  P(0, 104) = &HEA
  P(0, 105) = &H77
  P(0, 106) = &H39
  P(0, 107) = &HAF
  P(0, 108) = &H33
  P(0, 109) = &HC9
  P(0, 110) = &H62
  P(0, 111) = &H71
  P(0, 112) = &H81
  P(0, 113) = &H79
  P(0, 114) = &H9
  P(0, 115) = &HAD
  P(0, 116) = &H24
  P(0, 117) = &HCD
  P(0, 118) = &HF9
  P(0, 119) = &HD8
  P(0, 120) = &HE5
  P(0, 121) = &HC5
  P(0, 122) = &HB9
  P(0, 123) = &H4D
  P(0, 124) = &H44
  P(0, 125) = &H8
  P(0, 126) = &H86
  P(0, 127) = &HE7
  P(0, 128) = &HA1
  P(0, 129) = &H1D
  P(0, 130) = &HAA
  P(0, 131) = &HED
  P(0, 132) = &H6
  P(0, 133) = &H70
  P(0, 134) = &HB2
  P(0, 135) = &HD2
  P(0, 136) = &H41
  P(0, 137) = &H7B
  P(0, 138) = &HA0
  P(0, 139) = &H11
  P(0, 140) = &H31
  P(0, 141) = &HC2
  P(0, 142) = &H27
  P(0, 143) = &H90
  P(0, 144) = &H20
  P(0, 145) = &HF6
  P(0, 146) = &H60
  P(0, 147) = &HFF
  P(0, 148) = &H96
  P(0, 149) = &H5C
  P(0, 150) = &HB1
  P(0, 151) = &HAB
  P(0, 152) = &H9E
  P(0, 153) = &H9C
  P(0, 154) = &H52
  P(0, 155) = &H1B
  P(0, 156) = &H5F
  P(0, 157) = &H93
  P(0, 158) = &HA
  P(0, 159) = &HEF
  P(0, 160) = &H91
  P(0, 161) = &H85
  P(0, 162) = &H49
  P(0, 163) = &HEE
  P(0, 164) = &H2D
  P(0, 165) = &H4F
  P(0, 166) = &H8F
  P(0, 167) = &H3B
  P(0, 168) = &H47
  P(0, 169) = &H87
  P(0, 170) = &H6D
  P(0, 171) = &H46
  P(0, 172) = &HD6
  P(0, 173) = &H3E
  P(0, 174) = &H69
  P(0, 175) = &H64
  P(0, 176) = &H2A
  P(0, 177) = &HCE
  P(0, 178) = &HCB
  P(0, 179) = &H2F
  P(0, 180) = &HFC
  P(0, 181) = &H97
  P(0, 182) = &H5
  P(0, 183) = &H7A
  P(0, 184) = &HAC
  P(0, 185) = &H7F
  P(0, 186) = &HD5
  P(0, 187) = &H1A
  P(0, 188) = &H4B
  P(0, 189) = &HE
  P(0, 190) = &HA7
  P(0, 191) = &H5A
  P(0, 192) = &H28
  P(0, 193) = &H14
  P(0, 194) = &H3F
  P(0, 195) = &H29
  P(0, 196) = &H88
  P(0, 197) = &H3C
  P(0, 198) = &H4C
  P(0, 199) = &H2
  P(0, 200) = &HB8
  P(0, 201) = &HDA
  P(0, 202) = &HB0
  P(0, 203) = &H17
  P(0, 204) = &H55
  P(0, 205) = &H1F
  P(0, 206) = &H8A
  P(0, 207) = &H7D
  P(0, 208) = &H57
  P(0, 209) = &HC7
  P(0, 210) = &H8D
  P(0, 211) = &H74
  P(0, 212) = &HB7
  P(0, 213) = &HC4
  P(0, 214) = &H9F
  P(0, 215) = &H72
  P(0, 216) = &H7E
  P(0, 217) = &H15
  P(0, 218) = &H22
  P(0, 219) = &H12
  P(0, 220) = &H58
  P(0, 221) = &H7
  P(0, 222) = &H99
  P(0, 223) = &H34
  P(0, 224) = &H6E
  P(0, 225) = &H50
  P(0, 226) = &HDE
  P(0, 227) = &H68
  P(0, 228) = &H65
  P(0, 229) = &HBC
  P(0, 230) = &HDB
  P(0, 231) = &HF8
  P(0, 232) = &HC8
  P(0, 233) = &HA8
  P(0, 234) = &H2B
  P(0, 235) = &H40
  P(0, 236) = &HDC
  P(0, 237) = &HFE
  P(0, 238) = &H32
  P(0, 239) = &HA4
  P(0, 240) = &HCA
  P(0, 241) = &H10
  P(0, 242) = &H21
  P(0, 243) = &HF0
  P(0, 244) = &HD3
  P(0, 245) = &H5D
  P(0, 246) = &HF
  P(0, 247) = &H0
  P(0, 248) = &H6F
  P(0, 249) = &H9D
  P(0, 250) = &H36
  P(0, 251) = &H42
  P(0, 252) = &H4A
  P(0, 253) = &H5E
  P(0, 254) = &HC1
  P(0, 255) = &HE0
  
  'Initialize P(1,..) array
  P(1, 0) = &H75
  P(1, 1) = &HF3
  P(1, 2) = &HC6
  P(1, 3) = &HF4
  P(1, 4) = &HDB
  P(1, 5) = &H7B
  P(1, 6) = &HFB
  P(1, 7) = &HC8
  P(1, 8) = &H4A
  P(1, 9) = &HD3
  P(1, 10) = &HE6
  P(1, 11) = &H6B
  P(1, 12) = &H45
  P(1, 13) = &H7D
  P(1, 14) = &HE8
  P(1, 15) = &H4B
  P(1, 16) = &HD6
  P(1, 17) = &H32
  P(1, 18) = &HD8
  P(1, 19) = &HFD
  P(1, 20) = &H37
  P(1, 21) = &H71
  P(1, 22) = &HF1
  P(1, 23) = &HE1
  P(1, 24) = &H30
  P(1, 25) = &HF
  P(1, 26) = &HF8
  P(1, 27) = &H1B
  P(1, 28) = &H87
  P(1, 29) = &HFA
  P(1, 30) = &H6
  P(1, 31) = &H3F
  P(1, 32) = &H5E
  P(1, 33) = &HBA
  P(1, 34) = &HAE
  P(1, 35) = &H5B
  P(1, 36) = &H8A
  P(1, 37) = &H0
  P(1, 38) = &HBC
  P(1, 39) = &H9D
  P(1, 40) = &H6D
  P(1, 41) = &HC1
  P(1, 42) = &HB1
  P(1, 43) = &HE
  P(1, 44) = &H80
  P(1, 45) = &H5D
  P(1, 46) = &HD2
  P(1, 47) = &HD5
  P(1, 48) = &HA0
  P(1, 49) = &H84
  P(1, 50) = &H7