MD5_II a, b, c, d, x(k + 0), S41, &HF4292244
MD5_II d, a, b, c, x(k + 7), S42, &H432AFF97
MD5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
MD5_II b, c, d, a, x(k + 5), S44, &HFC93A039
MD5_II a, b, c, d, x(k + 12), S41, &H655B59C3
MD5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
MD5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
MD5_II b, c, d, a, x(k + 1), S44, &H85845DD1
MD5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
MD5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
MD5_II c, d, a, b, x(k + 6), S43, &HA3014314
MD5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
MD5_II a, b, c, d, x(k + 4), S41, &HF7537E82
MD5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
MD5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
MD5_II b, c, d, a, x(k + 9), S44, &HEB86D391
a = AddUnsigned(a, AA)
b = AddUnsigned(b, BB)
c = AddUnsigned(c, CC)
d = AddUnsigned(d, DD)
Next
coreMD5 = Array(a,b,c,d)
End Function
'
' screwball MD5 functions
'
Sub MD5_FF(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(MD5_F(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Sub MD5_GG(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(MD5_G(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Sub MD5_HH(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(MD5_H(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Sub MD5_II(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(MD5_I(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Function MD5_F(x, y, z)
MD5_F = (x And y) Or ((Not x) And z)
End Function
Function MD5_G(x, y, z)
MD5_G = (x And z) Or (y And (Not z))
End Function
Function MD5_H(x, y, z)
MD5_H = (x Xor y Xor z)
End Function
Function MD5_I(x, y, z)
MD5_I = (y Xor (x Or (Not z)))
End Function
'
' utility functions
'
Function LShift(lValue, iShiftBits)
If iShiftBits = 0 Then
LShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And 1 Then
LShift = &H80000000
Else
LShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
If (lValue And m_l2Power(31 - iShiftBits)) Then
LShift = ((lValue And m_lOnBits(31 - (iShiftBits + 1))) * m_l2Power(iShiftBits)) Or &H80000000
Else
LShift = ((lValue And m_lOnBits(31 - iShiftBits)) * m_l2Power(iShiftBits))
End If
End Function
Function RShift(lValue, iShiftBits)
If iShiftBits = 0 Then
RShift = lValue
Exit Function
ElseIf iShiftBits = 31 Then
If lValue And &H80000000 Then
RShift = 1
Else
RShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
RShift = (lValue And &H7FFFFFFE) m_l2Power(iShiftBits)
