【正文】 解密過程就可以運行改進的代碼進行解密，對偽代碼”：6J：FH；J=KG：；”解密我們得到其MD5值為51E5A9C677E8FB56，然后利用MD5在線解密數(shù)據(jù)庫就可以得到其原始輸入的字符串為19850405，這樣在使用改進后的加密算法后，不僅可以實現(xiàn)加密保護作用，也可以實現(xiàn)解密作用，這樣就起到很好的應(yīng)用。H2AD7D2BB md5_II b, c, d, a, x(k + 9), S44, amp。HA3014314 md5_II b, c, d, a, x(k + 13), S44, amp。HFFEFF47D md5_II b, c, d, a, x(k + 1), S44, amp。HAB9423A7 md5_II b, c, d, a, x(k + 5), S44, amp。H1FA27CF8 md5_HH b, c, d, a, x(k + 2), S34, amp。HD4EF3085 md5_HH b, c, d, a, x(k + 6), S34, amp。HF6BB4B60 md5_HH b, c, d, a, x(k + 10), S34, amp。H6D9D6122 md5_HH b, c, d, a, x(k + 14), S34, amp。H676F02D9 md5_GG b, c, d, a, x(k + 12), S24, amp。HF4D50D87 md5_GG b, c, d, a, x(k + 8), S24, amp。HD8A1E681 md5_GG b, c, d, a, x(k + 4), S24, amp。H265E5A51 md5_GG b, c, d, a, x(k + 0), S24, amp。HA679438E md5_FF b, c, d, a, x(k + 15), S14, amp。HFFFF5BB1 md5_FF b, c, d, a, x(k + 11), S14, amp。HA8304613 md5_FF b, c, d, a, x(k + 7), S14, amp。H242070DB md5_FF b, c, d, a, x(k + 3), S14, amp。H98BADCFE d = amp。 Right(0 amp。H40000000 Then lResult = lResult Xor amp。H40000000 lResult = (lX And amp。H40000000 \ m_l2Power(iShiftBits 1))) End IfEnd Function Private Function RotateLeft(lValue, iShiftBits) ’定義循環(huán)左移函數(shù) RotateLeft = LShift(lValue, iShiftBits) Or RShift(lValue, (32 iShiftBits)) End Function Private Function AddUnsigned(lX, lY) ’定義模加法運算 Dim lX4 Dim lY4 Dim lX8 Dim lY8 Dim lResult lX8 = lX And amp。H80000000 Else LShift = ((lValue And m_lOnBits(31 iShiftBits)) * m_l2Power(iShiftBits)) End IfEnd Function Private Function RShift(lValue, iShiftBits) ’定義右移函數(shù) If iShiftBits = 0 Then RShift = lValue Exit Function ElseIf iShiftBits = 31 Then If lValue And amp。；其中是整數(shù)，且稱為除以的商，為除以的余數(shù)．對于正整數(shù)和整數(shù)，定義如下運算：H80000000 Then RShift = 1 Else RShift = 0 End If Exit Function ElseIf iShiftBits 0 Or iShiftBits 31 Then 6 End IfRShift = (lValue And amp。H80000000 lY8 = lY And amp。H3FFFFFFF) + (lY And amp。HC0000000 Xor lX8 Xor lY8 Else lResult = lResult Xor amp。 Hex(lByte), 2) Next End Function Public Function MD5(sMessage) 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(10) = CLng(2047) m_lOnBits(11) = CLng(4095) m_lOnBits(12) = CLng(8191) m_lOnBits(13) = CLng(16383) m_lOnBits(14) = CLng(32767) m_lOnBits(15) = CLng(65535) m_lOnBits(16) = CLng(131071) m_lOnBits(17) = CLng(262143) m_lOnBits(18) = CLng(524287) m_lOnBits(19) = CLng(1048575) m_lOnBits(20) = CLng(2097151) m_lOnBits(21) = CLng(4194303) m_lOnBits(22) = CLng(8388607) m_lOnBits(23) = CLng(16777215) m_lOnBits(24) = CLng(33554431) m_lOnBits(25) = CLng(67108863) m_lOnBits(26) = CLng(134217727) m_lOnBits(27) = CLng(268435455) m_lOnBits(28) = CLng(536870911) m_lOnBits(29) = CLng(1073741823) m_lOnBits(30) = 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(10) = CLng(1024) m_l2Power(11) = CLng(2048) m_l2Power(12) = CLng(4096) m_l2Power(13) = CLng(8192) m_l2Power(14) = CLng(16384) m_l2Power(15) = CLng(32768) m_l2Power(16) = CLng(65536) m_l2Power(17) = CLng(131072) m_l2Power(18) = CLng(262144) m_l2Power(19) = CLng(524288) m_l2Power(20) = C