VBS MD5 encryption Algorithm code _vbs

Source: Internet
Author: User
Tags md5 md5 encryption
Copy Code code as follows:

Private Const Bits_to_a_byte = 8
Private Const Bytes_to_a_word = 4
Private Const Bits_to_a_word = 32
Private M_lonbits (30)
Private M_l2power (30)
M_lonbits (0) = CLng (1)
M_lonbits (1) = CLng (3)
M_lonbits (2) = CLng (7)
M_lonbits (3) = CLng (15)
M_lonbits (4) = CLng (31)
M_lonbits (5) = CLng (63)
M_lonbits (6) = CLng (127)
M_lonbits (7) = CLng (255)
M_lonbits (8) = CLng (511)
M_lonbits (9) = CLng (1023)
M_lonbits (+) = CLng (2047)
M_lonbits (one) = CLng (4095)
M_lonbits (a) = CLng (8191)
M_lonbits (+) = CLng (16383)
M_lonbits (+) = CLng (32767)
M_lonbits (+) = CLng (65535)
M_lonbits (+) = CLng (131071)
M_lonbits (+) = CLng (262143)
M_lonbits (km) = CLng (524287)
M_lonbits (a) = CLng (1048575)
M_lonbits (+) = CLng (2097151)
M_lonbits = CLng (4194303)
M_lonbits (+) = CLng (8388607)
M_lonbits (+) = CLng (16777215)
M_lonbits (+) = CLng (33554431)
M_lonbits (+) = CLng (67108863)
M_lonbits (num) = CLng (134217727)
M_lonbits (+) = CLng (268435455)
M_lonbits = CLng (536870911)
M_lonbits (+) = CLng (1073741823)
M_lonbits (+) = CLng (2147483647)
M_l2power (0) = CLng (1)
M_l2power (1) = CLng (2)
M_l2power (2) = CLng (4)
M_l2power (3) = CLng (8)
M_l2power (4) = CLng (16)
M_l2power (5) = CLng (32)
M_l2power (6) = CLng (64)
M_l2power (7) = CLng (128)
M_l2power (8) = CLng (256)
M_l2power (9) = CLng (512)
M_l2power (+) = CLng (1024)
M_l2power (one) = CLng (2048)
M_l2power (a) = CLng (4096)
M_l2power (+) = CLng (8192)
M_l2power (+) = CLng (16384)
M_l2power (+) = CLng (32768)
M_l2power (+) = CLng (65536)
M_l2power (+) = CLng (131072)
M_l2power (km) = CLng (262144)
M_l2power (a) = CLng (524288)
M_l2power (+) = CLng (1048576)
M_l2power = CLng (2097152)
M_l2power (+) = CLng (4194304)
M_l2power (+) = CLng (8388608)
M_l2power (+) = CLng (16777216)
M_l2power (+) = CLng (33554432)
M_l2power (num) = CLng (67108864)
M_l2power (+) = CLng (134217728)
M_l2power = CLng (268435456)
M_l2power (+) = CLng (536870912)
M_l2power (+) = CLng (1073741824)


A=inputbox ("Please enter password:")
WScript.Echo MD5 (a)


Private Function LShift (LValue, Ishiftbits)
If ishiftbits = 0 Then
LShift = LValue
Exit Function
ElseIf ishiftbits = Then
If LValue and 1 Then
LShift = &h80000000
Else
LShift = 0
End If
Exit Function
ElseIf ishiftbits < 0 Or ishiftbits > Then
Err.Raise 6
End If

If (LValue and M_l2power (31-ishiftbits)) Then
LShift = ((LValue and M_lonbits ()-(ishiftbits + 1)) * M_l2power (ishiftbits)) Or &h80000000
Else
LShift = ((LValue and M_lonbits (31-ishiftbits)) * M_l2power (ishiftbits))
End If
End Function

Private Function rshift (LValue, Ishiftbits)
If ishiftbits = 0 Then
Rshift = LValue
Exit Function
ElseIf ishiftbits = Then
If LValue and &h80000000 Then
Rshift = 1
Else
Rshift = 0
End If
Exit Function
ElseIf ishiftbits < 0 Or ishiftbits > Then
Err.Raise 6
End If

Rshift = (lValue and &h7ffffffe) \ M_l2power (ishiftbits)

If (LValue and &h80000000) Then
Rshift = (rshift Or (&h40000000 \ m_l2power (iShiftBits-1))
End If
End Function

Private Function rotateleft (LValue, Ishiftbits)
Rotateleft = LShift (LValue, ishiftbits) Or Rshift (LValue, (32-ishiftbits))
End Function

Private Function addunsigned (LX, LY)
Dim lX4
Dim lY4
Dim lX8
Dim lY8
Dim Lresult

LX8 = LX and &h80000000
LY8 = LY and &h80000000
LX4 = LX and &h40000000
LY4 = LY and &h40000000

LRESULT = (LX and &AMP;H3FFFFFFF) + (LY and &AMP;H3FFFFFFF)

If lX4 and LY4 Then
LRESULT = Lresult xor &h80000000 xor LX8 xor lY8
ElseIf lX4 Or lY4 Then
If Lresult and &h40000000 Then
LRESULT = Lresult xor &hc0000000 xor LX8 xor lY8
Else
LRESULT = Lresult xor &h40000000 xor LX8 xor lY8
End If
Else
LRESULT = Lresult XOR lX8 xor lY8
End If

addunsigned = Lresult
End Function

Private Function F (x, Y, z)
F = (x and y) Or (not x) and Z)
End Function

Private Function G (x, Y, z)
G = (x and z) Or (y and not z)
End Function

Private Function H (x, Y, z)
H = (x xor y xor Z)
End Function

Private Function I (x, Y, z)
I = (y Xor (x Or not z))
End Function

Private Sub FF (A, B, C, D, X, S, AC)
A = addunsigned (A, addunsigned (addunsigned (F (b, C, D), x), AC)
A = Rotateleft (A, s)
A = Addunsigned (A, B)
End Sub

Private Sub GG (A, B, C, D, X, S, AC)
A = addunsigned (A, addunsigned (addunsigned (G (b, C, D), x), AC)
A = Rotateleft (A, s)
A = Addunsigned (A, B)
End Sub

Private Sub HH (A, B, C, D, X, S, AC)
A = addunsigned (A, addunsigned (addunsigned (H (b, C, D), x), AC)
A = Rotateleft (A, s)
A = Addunsigned (A, B)
End Sub

Private Sub II (A, B, C, D, X, S, AC)
A = addunsigned (A, addunsigned (addunsigned (I (b, C, D), x), AC)
A = Rotateleft (A, s)
A = Addunsigned (A, B)
End Sub

Private Function Converttowordarray (smessage)
Dim Lmessagelength
Dim Lnumberofwords
Dim Lwordarray ()
Dim lbyteposition
Dim Lbytecount
Dim Lwordcount

Const modulus_bits = 512
Const congruent_bits = 448

Lmessagelength = Len (smessage)

Lnumberofwords = ((Lmessagelength + ((modulus_bits-congruent_bits) \ Bits_to_a_byte)) \ (modulus_bits \ BITS_TO_A_BYTE) ) + 1) * (modulus_bits \ Bits_to_a_word)
ReDim Lwordarray (lNumberOfWords-1)

lbyteposition = 0
Lbytecount = 0
Do Until lbytecount >= lmessagelength
Lwordcount = lbytecount \ Bytes_to_a_word
Lbyteposition = (Lbytecount Mod bytes_to_a_word) * Bits_to_a_byte
Lwordarray (Lwordcount) = Lwordarray (Lwordcount) Or LShift (ASC (Mid smessage, Lbytecount + 1, 1), lbyteposition)
Lbytecount = Lbytecount + 1
Loop

Lwordcount = lbytecount \ Bytes_to_a_word
Lbyteposition = (Lbytecount Mod bytes_to_a_word) * Bits_to_a_byte

Lwordarray (Lwordcount) = Lwordarray (Lwordcount) Or lshift (&h80, lbyteposition)

Lwordarray (lNumberOfWords-2) = LShift (Lmessagelength, 3)
Lwordarray (lNumberOfWords-1) = Rshift (lmessagelength, 29)

Converttowordarray = Lwordarray
End Function

Private Function Wordtohex (lValue)
Dim Lbyte
Dim Lcount

For lcount = 0 to 3
Lbyte = Rshift (LValue, Lcount * bits_to_a_byte) and m_lonbits (bits_to_a_byte-1)
Wordtohex = Wordtohex & Right ("0" & Hex (Lbyte), 2)
Next
End Function

Public Function MD5 (smessage)
Dim x
Dim K
Dim AA
Dim BB
Dim CC
Dim DD
Dim A
Dim b
Dim C
Dim D

Const S11 = 7
Const S12 = 12
Const S13 = 17
Const S14 = 22
Const S21 = 5
Const S22 = 9
Const S23 = 14
Const S24 = 20
Const S31 = 4
Const S32 = 11
Const S33 = 16
Const S34 = 23
Const S41 = 6
Const S42 = 10
Const S43 = 15
Const S44 = 21

x = Converttowordarray (smessage)

A = &h67452301
b = &hefcdab89
c = &h98badcfe
D = &h10325476

For k = 0 to UBound (x) Step 16
AA = A
BB = b
CC = C
DD = d

FF A, B, C, D, X (k + 0), S11, &hd76aa478
FF D, A, B, C, x (k + 1), S12, &he8c7b756
FF C, D, a, B, X (k + 2), S13, &h242070db
FF B, C, D, A, X (K + 3), S14, &hc1bdceee
FF A, B, C, D, X (K + 4), S11, &AMP;HF57C0FAF
FF D, A, B, C, X (K + 5), S12, &h4787c62a
FF C, D, a, B, X (k + 6), S13, &ha8304613
FF B, C, D, A, X (k + 7), S14, &hfd469501
FF A, B, C, D, X (K + 8), S11, &h698098d8
FF D, A, B, C, X (K + 9), S12, &AMP;H8B44F7AF
FF C, D, a, B, X (k +), S13, &AMP;HFFFF5BB1
FF B, C, D, A, X (k + one), S14, &h895cd7be
FF A, B, C, D, X (K +), S11, &h6b901122
FF D, A, B, C, X (K +), S12, &hfd987193
FF C, D, a, B, X (k +), S13, &ha679438e
FF B, C, D, A, X (k +), S14, &h49b40821

GG A, B, C, D, X (k + 1), S21, &hf61e2562
GG D, A, B, C, X (K + 6), S22, &hc040b340
GG C, D, a, B, X (k + one), S23, &h265e5a51
GG B, C, D, A, X (k + 0), S24, &AMP;HE9B6C7AA
GG A, B, C, D, X (K + 5), S21, &hd62f105d
GG D, A, B, C, X (K +), S22, &h2441453
GG C, D, a, B, X (k +), S23, &hd8a1e681
GG B, C, D, A, X (K + 4), S24, &he7d3fbc8
GG A, B, C, D, X (K + 9), S21, &h21e1cde6
GG D, A, B, C, X (K +), S22, &hc33707d6
GG C, D, a, B, X (k + 3), S23, &hf4d50d87
GG B, C, D, A, X (K + 8), S24, &h455a14ed
GG A, B, C, D, X (K +), S21, &ha9e3e905
GG D, A, B, C, X (K + 2), S22, &hfcefa3f8
GG C, D, a, B, X (k + 7), S23, &h676f02d9
GG B, C, D, A, X (k +), S24, &h8d2a4c8a

HH A, B, C, D, X (K + 5), S31, &hfffa3942
HH D, A, B, C, X (K + 8), S32, &h8771f681
HH C, D, a, B, X (k + one), S33, &h6d9d6122
HH B, C, D, A, X (k +), S34, &hfde5380c
HH A, B, C, D, X (k + 1), S31, &ha4beea44
HH D, A, B, C, X (K + 4), S32, &h4bdecfa9
HH C, D, a, B, X (k + 7), S33, &hf6bb4b60
HH B, C, D, A, X (k +), S34, &hbebfbc70
HH A, B, C, D, X (K +), S31, &AMP;H289B7EC6
HH D, A, B, C, x (k + 0), S32, &AMP;HEAA127FA
HH C, D, a, B, X (k + 3), S33, &hd4ef3085
HH B, C, D, A, X (k + 6), S34, &h4881d05
HH A, B, C, D, X (K + 9), S31, &hd9d4d039
HH D, A, B, C, X (K +), S32, &he6db99e5
HH C, D, a, B, X (k +), S33, &h1fa27cf8
HH B, C, D, A, X (K + 2), S34, &hc4ac5665

II A, B, C, D, X (k + 0), S41, &hf4292244
II D, A, B, C, X (k + 7), S42, &h432aff97
II C, D, a, B, X (k +), S43, &hab9423a7
II B, C, D, A, X (K + 5), S44, &hfc93a039
II A, B, C, D, X (K +), S41, &AMP;H655B59C3
II D, A, B, C, X (K + 3), S42, &h8f0ccc92
II C, D, a, B, X (k +), S43, &hffeff47d
II B, C, D, A, X (k + 1), S44, &AMP;H85845DD1
II A, B, C, D, X (K + 8), S41, &h6fa87e4f
II D, A, B, C, X (K +), S42, &AMP;HFE2CE6E0
II C, D, a, B, X (k + 6), S43, &ha3014314
II B, C, D, A, X (k +), S44, &AMP;H4E0811A1
II A, B, C, D, X (K + 4), S41, &hf7537e82
II D, A, B, C, X (K + one), S42, &hbd3af235
II C, D, a, B, X (k + 2), S43, &AMP;H2AD7D2BB
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

MD5 = LCase (Wordtohex (a) & Wordtohex (b) & Wordtohex (c) & Wordtohex (d))
End Function

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.