谁能提供C＃格式的SHA256算法的源码？
我只有VB格式的，改起来很郁闷。。。 --------------------编程问答-------------------- vb格式的如下，有没有强人翻译成C＃格式的？－－－－－－－－－－－－－－－－－－－－－－－－－－
Imports System
imports System.Net
imports System.Net.Sockets
Imports System.Text
imports System.Data
imports System.Web
Imports System.Web.UI
Public Class SHA256 : Inherits Page
Private m_lOnBits(30)
Private m_l2Power(30)
Private K(63)
Private Const BITS_TO_A_BYTE = 8
Private Const BYTES_TO_A_WORD = 4
Private Const BITS_TO_A_WORD = 32
sub new()
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) = CLng(1048576)
m_l2Power(21) = CLng(2097152)
m_l2Power(22) = CLng(4194304)
m_l2Power(23) = CLng(8388608)
m_l2Power(24) = CLng(16777216)
m_l2Power(25) = CLng(33554432)
m_l2Power(26) = CLng(67108864)
m_l2Power(27) = CLng(134217728)
m_l2Power(28) = CLng(268435456)
m_l2Power(29) = CLng(536870912)
m_l2Power(30) = CLng(1073741824)
K(0) = &H428A2F98
K(1) = &H71374491
K(2) = &HB5C0FBCF
K(3) = &HE9B5DBA5
K(4) = &H3956C25B
K(5) = &H59F111F1
K(6) = &H923F82A4
K(7) = &HAB1C5ED5
K(8) = &HD807AA98
K(9) = &H12835B01
K(10) = &H243185BE
K(11) = &H550C7DC3
K(12) = &H72BE5D74
K(13) = &H80DEB1FE
K(14) = &H9BDC06A7
K(15) = &HC19BF174
K(16) = &HE49B69C1
K(17) = &HEFBE4786
K(18) = &HFC19DC6
K(19) = &H240CA1CC
K(20) = &H2DE92C6F
K(21) = &H4A7484AA
K(22) = &H5CB0A9DC
K(23) = &H76F988DA
K(24) = &H983E5152
K(25) = &HA831C66D
K(26) = &HB00327C8
K(27) = &HBF597FC7
K(28) = &HC6E00BF3
K(29) = &HD5A79147
K(30) = &H6CA6351
K(31) = &H14292967
K(32) = &H27B70A85
K(33) = &H2E1B2138
K(34) = &H4D2C6DFC
K(35) = &H53380D13
K(36) = &H650A7354
K(37) = &H766A0ABB
K(38) = &H81C2C92E
K(39) = &H92722C85
K(40) = &HA2BFE8A1
K(41) = &HA81A664B
K(42) = &HC24B8B70
K(43) = &HC76C51A3
K(44) = &HD192E819
K(45) = &HD6990624
K(46) = &HF40E3585
K(47) = &H106AA070
K(48) = &H19A4C116
K(49) = &H1E376C08
K(50) = &H2748774C
K(51) = &H34B0BCB5
K(52) = &H391C0CB3
K(53) = &H4ED8AA4A
K(54) = &H5B9CCA4F
K(55) = &H682E6FF3
K(56) = &H748F82EE
K(57) = &H78A5636F
K(58) = &H84C87814
K(59) = &H8CC70208
K(60) = &H90BEFFFA
K(61) = &HA4506CEB
K(62) = &HBEF9A3F7
K(63) = &HC67178F2
end sub
Function Len(ByVal inString As String)
If inString Is Nothing Then
Len = 0
Else
Len = inString.Length()
End If
End Function
Function Mid(ByVal inString As String, ByVal posStart As Long, ByVal intLength As Long)
Mid = inString.Substring(posStart - 1, intLength)
End Function
Function InStr(ByVal inString As String, ByVal findString As String) As Long
If Not findString Is Nothing Then
If findString.Length() Then
InStr = inString.IndexOf(findString) + 1
End If
End If
End Function
Function Right(ByVal inString As String, ByVal numCharacters As Long) As String
If numCharacters > 0 Then
If numCharacters >= inString.Length() Then
Right = inString
Else
Right = inString.Substring(inString.Length() - numCharacters, numCharacters)
End If
End If
End Function
Function UBound(ByVal inArray As Array) As Long
UBound = inArray.GetUpperBound(0)
End Function
Function AscB(ByVal inString As String) As Byte
AscB = Microsoft.VisualBasic.Asc(inString.Chars(0))
End Function
Function AscW(ByVal inString As String) As Integer
AscW = Microsoft.VisualBasic.AscW(inString.Chars(0))
End Function
Function Asc(ByVal inString As String) As Byte
Asc = Microsoft.VisualBasic.Asc(inString.Chars(0))
End Function
Function Chr(ByVal inString As Integer) As String
Chr = Microsoft.VisualBasic.Chr(inString)
End Function
Function Val(ByVal inString As String) As Long
Val = Microsoft.VisualBasic.Val(inString)
End Function
--------------------编程问答-------------------- Function Replace(ByVal inString As String, ByVal strFrom As String, ByVal strTo As String) As String
Replace = Microsoft.VisualBasic.Replace(inString, strFrom, strTo)
End Function
Function Abs(ByVal inNumb As Decimal) As Decimal
If inNumb < 0 Then
Return -inNumb
Else
Return inNumb
End If
End Function
Function LCase(ByVal inString As String) As String
LCase = inString.ToLower()
End Function
Function Hex(ByVal inNumber As Long) As String
'Microsoft.VisualBasic.Hex should work too
Hex = inNumber.ToString("x")
End Function
Private 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
Throw (New Exception("error 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
Private 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
Throw (New Exception("error 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 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 &H3FFFFFFF) + (lY And &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 Ch(x, y, z)
Ch = ((x And y) Xor ((Not x) And z))
End Function
Private Function Maj(x, y, z)
Maj = ((x And y) Xor (x And z) Xor (y And z))
End Function
Private Function S(x, n)
S = (RShift(x, (n And m_lOnBits(4))) Or LShift(x, (32 - (n And m_lOnBits(4)))))
End Function
Private Function R(x, n)
R = RShift(x, CInt(n And m_lOnBits(4)))
End Function
Private Function Sigma0(x)
Sigma0 = (S(x, 2) Xor S(x, 13) Xor S(x, 22))
End Function
Private Function Sigma1(x)
Sigma1 = (S(x, 6) Xor S(x, 11) Xor S(x, 25))
End Function
Private Function Gamma0(x)
Gamma0 = (S(x, 7) Xor S(x, 18) Xor R(x, 3))
End Function
Private Function Gamma1(x)
Gamma1 = (S(x, 17) Xor S(x, 19) Xor R(x, 10))
End Function
Private Function ConvertToWordArray(sMessage)
Dim lMessageLength
Dim lNumberOfWords
Dim lWordArray()
Dim lBytePosition
Dim lByteCount
Dim lWordCount
Dim lByte
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 = (3 - (lByteCount Mod BYTES_TO_A_WORD)) * BITS_TO_A_BYTE
lByte = AscW(Mid(sMessage, lByteCount + 1, 1))
lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(lByte, lBytePosition)
lByteCount = lByteCount + 1
Loop
lWordCount = lByteCount \ BYTES_TO_A_WORD
lBytePosition = (3 - (lByteCount Mod BYTES_TO_A_WORD)) * BITS_TO_A_BYTE
lWordArray(lWordCount) = lWordArray(lWordCount) Or LShift(&H80, lBytePosition)
lWordArray(lNumberOfWords - 1) = LShift(lMessageLength, 3)
lWordArray(lNumberOfWords - 2) = RShift(lMessageLength, 29)
ConvertToWordArray = lWordArray
End Function
Public Function SHA256(sMessage)
Dim HASH(7)
Dim M
Dim W(63)
Dim a
Dim b
Dim c
Dim d
Dim e
Dim f
Dim g
Dim h
Dim i
Dim j
Dim T1
Dim T2
HASH(0) = &H6A09E667
HASH(1) = &HBB67AE85
HASH(2) = &H3C6EF372
HASH(3) = &HA54FF53A
HASH(4) = &H510E527F
HASH(5) = &H9B05688C
HASH(6) = &H1F83D9AB
HASH(7) = &H5BE0CD19
M = ConvertToWordArray(sMessage)
For i = 0 To UBound(M) Step 16
a = HASH(0)
b = HASH(1)
c = HASH(2)
d = HASH(3)
e = HASH(4)
f = HASH(5)
g = HASH(6)
h = HASH(7)
For j = 0 To 63
If j < 16 Then
W(j) = M(j + i)
Else
W(j) = AddUnsigned(AddUnsigned(AddUnsigned(Gamma1(W(j - 2)), W(j - 7)), Gamma0(W(j - 15))), W(j - 16))
End If
T1 = AddUnsigned(AddUnsigned(AddUnsigned(AddUnsigned(h, Sigma1(e)), Ch(e, f, g)), K(j)), W(j))
T2 = AddUnsigned(Sigma0(a), Maj(a, b, c))
h = g
g = f
f = e
e = AddUnsigned(d, T1)
d = c
c = b
b = a
a = AddUnsigned(T1, T2)
Next
HASH(0) = AddUnsigned(a, HASH(0))
HASH(1) = AddUnsigned(b, HASH(1))
HASH(2) = AddUnsigned(c, HASH(2))
HASH(3) = AddUnsigned(d, HASH(3))
HASH(4) = AddUnsigned(e, HASH(4))
HASH(5) = AddUnsigned(f, HASH(5))
HASH(6) = AddUnsigned(g, HASH(6))
HASH(7) = AddUnsigned(h, HASH(7))
Next
SHA256 = LCase(Right("00000000" & Hex(HASH(0)), 8) & Right("00000000" & Hex(HASH(1)), 8) & Right("00000000" & Hex(HASH(2)), 8) & Right("00000000" & Hex(HASH(3)), 8) & Right("00000000" & Hex(HASH(4)), 8) & Right("00000000" & Hex(HASH(5)), 8) & Right("00000000" & Hex(HASH(6)), 8) & Right("00000000" & Hex(HASH(7)), 8))
End Function
End Class --------------------编程问答-------------------- 楼主知不知道有个Reflector可以反编译的，不知道的话，到搜索引擎搜下，下载
把你的VB的代码，放到一个项目里，编译
然后用Reflector反编译为C#即可~ --------------------编程问答-------------------- viena(维也纳N02)兄说的软件,我有,如果LZ需要,我可以发给出你 --------------------编程问答-------------------- Reflector找不到可以下载的，CSDN这个扣了分也不给下载，郁闷。。。 --------------------编程问答-------------------- 楼上的，发给我吧，谢谢 --------------------编程问答-------------------- 下面的示例计算 data 的 SHA256 哈希值，并将它存储在 result 中。此示例假定存在一个预定义的常数 DATA_SIZE。
Visual Basic
Dim data(DATA_SIZE) As Byte
Dim result() As Byte
Dim shaM As New SHA256Managed()
result = shaM.ComputeHash(data)
C#
byte[] data = new byte[DATA_SIZE];
byte[] result;
SHA256 shaM = new SHA256Managed();
result = shaM.ComputeHash(data);
简直服了你们了...都不看MSDN的吗？ --------------------编程问答-------------------- 楼上的，你那个方法是.net自带的，我用过，问题是我现在的计算和.net原始的结果不一样，为了一致我只能用C＃参照vb的格式重写一个。。。 --------------------编程问答-------------------- 我在一个smartphone 程序上用需要sha256算法，所以就根据楼主的代码用C#改写了一遍。测试结果ASCII编码数据运算后与.net的SHA256Managed一致，中文由于.net使用unicode编码，所以不一样。
public class mySHA256
{
// Fields
private const int BITS_TO_A_BYTE = 8;
private const int BITS_TO_A_WORD = 32;
private const int BYTES_TO_A_WORD = 4;
private ulong[] K = new ulong[64];
private ulong[] m_l2Power = new ulong[31];
private ulong[] m_lOnBits = new ulong[31];
// Methods
public mySHA256()
{
m_lOnBits[0] = 1L;
m_lOnBits[1] = 3L;
m_lOnBits[2] = 7L;
m_lOnBits[3] = 15L;
m_lOnBits[4] = 0x1fL;
m_lOnBits[5] = 0x3fL;
m_lOnBits[6] = 0x7fL;
m_lOnBits[7] = 0xffL;
m_lOnBits[8] = 0x1ffL;
m_lOnBits[9] = 0x3ffL;
m_lOnBits[10] = 0x7ffL;
m_lOnBits[11] = 0xfffL;
m_lOnBits[12] = 0x1fffL;
m_lOnBits[13] = 0x3fffL;
m_lOnBits[14] = 0x7fffL;
m_lOnBits[15] = 0xffffL;
m_lOnBits[0x10] = 0x1ffffL;
m_lOnBits[0x11] = 0x3ffffL;
m_lOnBits[0x12] = 0x7ffffL;
m_lOnBits[0x13] = 0xfffffL;
m_lOnBits[20] = 0x1fffffL;
m_lOnBits[0x15] = 0x3fffffL;
m_lOnBits[0x16] = 0x7fffffL;
m_lOnBits[0x17] = 0xffffffL;
m_lOnBits[0x18] = 0x1ffffffL;
m_lOnBits[0x19] = 0x3ffffffL;
m_lOnBits[0x1a] = 0x7ffffffL;
m_lOnBits[0x1b] = 0xfffffffL;
m_lOnBits[0x1c] = 0x1fffffffL;
m_lOnBits[0x1d] = 0x3fffffffL;
m_lOnBits[30] = 0x7fffffffL;
m_l2Power[0] = 1L;
m_l2Power[1] = 2L;
m_l2Power[2] = 4L;
m_l2Power[3] = 8L;
m_l2Power[4] = 0x10L;
m_l2Power[5] = 0x20L;
m_l2Power[6] = 0x40L;
m_l2Power[7] = 0x80L;
m_l2Power[8] = 0x100L;
m_l2Power[9] = 0x200L;
m_l2Power[10] = 0x400L;
m_l2Power[11] = 0x800L;
m_l2Power[12] = 0x1000L;
m_l2Power[13] = 0x2000L;
m_l2Power[14] = 0x4000L;
m_l2Power[15] = 0x8000L;
m_l2Power[0x10] = 0x10000L;
m_l2Power[0x11] = 0x20000L;
m_l2Power[0x12] = 0x40000L;
m_l2Power[0x13] = 0x80000L;
m_l2Power[20] = 0x100000L;
m_l2Power[0x15] = 0x200000L;
m_l2Power[0x16] = 0x400000L;
m_l2Power[0x17] = 0x800000L;
m_l2Power[0x18] = 0x1000000L;
m_l2Power[0x19] = 0x2000000L;
m_l2Power[0x1a] = 0x4000000L;
m_l2Power[0x1b] = 0x8000000L;
m_l2Power[0x1c] = 0x10000000L;
m_l2Power[0x1d] = 0x20000000L;
m_l2Power[30] = 0x40000000L;
K[0] = 0x428A2F98;
K[1] = 0x71374491;
K[2] = 0xB5C0FBCF;
K[3] = 0xE9B5DBA5;
K[4] = 0x3956C25B;
K[5] = 0x59F111F1;
K[6] = 0x923F82A4;
K[7] = 0xAB1C5ED5;
K[8] = 0xD807AA98;
K[9] = 0x12835B01;
K[10] = 0x243185BE;
K[11] = 0x550C7DC3;
K[12] = 0x72BE5D74;
K[13] = 0x80DEB1FE;
K[14] = 0x9BDC06A7;
K[15] = 0xC19BF174;
K[16] = 0xE49B69C1;
K[17] = 0xEFBE4786;
K[18] = 0xFC19DC6;
K[19] = 0x240CA1CC;
K[20] = 0x2DE92C6F;
K[21] = 0x4A7484AA;
K[22] = 0x5CB0A9DC;
K[23] = 0x76F988DA;
K[24] = 0x983E5152;
K[25] = 0xA831C66D;
K[26] = 0xB00327C8;
K[27] = 0xBF597FC7;
K[28] = 0xC6E00BF3;
K[29] = 0xD5A79147;
K[30] = 0x6CA6351;
K[31] = 0x14292967;
K[32] = 0x27B70A85;
K[33] = 0x2E1B2138;
K[34] = 0x4D2C6DFC;
K[35] = 0x53380D13;
K[36] = 0x650A7354;
K[37] = 0x766A0ABB;
K[38] = 0x81C2C92E;
K[39] = 0x92722C85;
K[40] = 0xA2BFE8A1;
K[41] = 0xA81A664B;
K[42] = 0xC24B8B70;
K[43] = 0xC76C51A3;
K[44] = 0xD192E819;
K[45] = 0xD6990624;
K[46] = 0xF40E3585;
K[47] = 0x106AA070;
K[48] = 0x19A4C116;
K[49] = 0x1E376C08;
K[50] = 0x2748774C;
K[51] = 0x34B0BCB5;
K[52] = 0x391C0CB3;
K[53] = 0x4ED8AA4A;
K[54] = 0x5B9CCA4F;
K[55] = 0x682E6FF3;
K[56] = 0x748F82EE;
K[57] = 0x78A5636F;
K[58] = 0x84C87814;
K[59] = 0x8CC70208;
K[60] = 0x90BEFFFA;
K[61] = 0xA4506CEB;
K[62] = 0xBEF9A3F7;
K[63] = 0xC67178F2;
}
private ulong AddUnsigned(ulong lX, ulong lY)
{
ulong lX8 = lX & 0x80000000;
ulong lY8 = lY & 0x80000000;
ulong lX4 = lX & 0x40000000;
ulong lY4 = lY & 0x40000000;
ulong lResult = (lX & 0x3fffffff) + (lY & 0x3fffffff);
if ((lX4 & lY4)!=0)
{
lResult = lResult ^ 0x80000000 ^ lX8 ^ lY8;
}
else if (0!=(lX4 | lY4))
{
if (0!=(lResult & 0x40000000))
{
lResult = lResult ^ 0xC0000000 ^ lX8 ^ lY8;
}
else
{
lResult = lResult ^ 0x40000000 ^ lX8 ^ lY8;
}
}
else
{
lResult = lResult ^ lX8 ^ lY8;
}
return lResult;
}
--------------------编程问答--------------------
我在一个smartphone 程序上用需要sha256算法，所以就根据楼主的代码用C#改写了一遍。测试结果ASCII编码数据运算后与.net的SHA256Managed一致，中文由于.net使用unicode编码，所以不一样。
public class mySHA256
{
// Fields
private const int BITS_TO_A_BYTE = 8;
private const int BITS_TO_A_WORD = 32;
private const int BYTES_TO_A_WORD = 4;
private ulong[] K = new ulong[64];
private ulong[] m_l2Power = new ulong[31];
private ulong[] m_lOnBits = new ulong[31];
// Methods
public mySHA256()
{
m_lOnBits[0] = 1L;
m_lOnBits[1] = 3L;
m_lOnBits[2] = 7L;
m_lOnBits[3] = 15L;
m_lOnBits[4] = 0x1fL;
m_lOnBits[5] = 0x3fL;
m_lOnBits[6] = 0x7fL;
m_lOnBits[7] = 0xffL;
m_lOnBits[8] = 0x1ffL;
m_lOnBits[9] = 0x3ffL;
m_lOnBits[10] = 0x7ffL;
m_lOnBits[11] = 0xfffL;
m_lOnBits[12] = 0x1fffL;
m_lOnBits[13] = 0x3fffL;
m_lOnBits[14] = 0x7fffL;
m_lOnBits[15] = 0xffffL;
m_lOnBits[0x10] = 0x1ffffL;
m_lOnBits[0x11] = 0x3ffffL;
m_lOnBits[0x12] = 0x7ffffL;
m_lOnBits[0x13] = 0xfffffL;
m_lOnBits[20] = 0x1fffffL;
m_lOnBits[0x15] = 0x3fffffL;
m_lOnBits[0x16] = 0x7fffffL;
m_lOnBits[0x17] = 0xffffffL;
m_lOnBits[0x18] = 0x1ffffffL;
m_lOnBits[0x19] = 0x3ffffffL;
m_lOnBits[0x1a] = 0x7ffffffL;
m_lOnBits[0x1b] = 0xfffffffL;
m_lOnBits[0x1c] = 0x1fffffffL;
m_lOnBits[0x1d] = 0x3fffffffL;
m_lOnBits[30] = 0x7fffffffL;
m_l2Power[0] = 1L;
m_l2Power[1] = 2L;
m_l2Power[2] = 4L;
m_l2Power[3] = 8L;
m_l2Power[4] = 0x10L;
m_l2Power[5] = 0x20L;
m_l2Power[6] = 0x40L;
m_l2Power[7] = 0x80L;
m_l2Power[8] = 0x100L;
m_l2Power[9] = 0x200L;
m_l2Power[10] = 0x400L;
m_l2Power[11] = 0x800L;
m_l2Power[12] = 0x1000L;
m_l2Power[13] = 0x2000L;
m_l2Power[14] = 0x4000L;
m_l2Power[15] = 0x8000L;
m_l2Power[0x10] = 0x10000L;
m_l2Power[0x11] = 0x20000L;
m_l2Power[0x12] = 0x40000L;
m_l2Power[0x13] = 0x80000L;
m_l2Power[20] = 0x100000L;
m_l2Power[0x15] = 0x200000L;
m_l2Power[0x16] = 0x400000L;
m_l2Power[0x17] = 0x800000L;
m_l2Power[0x18] = 0x1000000L;
m_l2Power[0x19] = 0x2000000L;
m_l2Power[0x1a] = 0x4000000L;
m_l2Power[0x1b] = 0x8000000L;
m_l2Power[0x1c] = 0x10000000L;
m_l2Power[0x1d] = 0x20000000L;
m_l2Power[30] = 0x40000000L;
K[0] = 0x428A2F98;
K[1] = 0x71374491;
K[2] = 0xB5C0FBCF;
K[3] = 0xE9B5DBA5;
K[4] = 0x3956C25B;
K[5] = 0x59F111F1;
K[6] = 0x923F82A4;
K[7] = 0xAB1C5ED5;
K[8] = 0xD807AA98;
K[9] = 0x12835B01;
K[10] = 0x243185BE;
K[11] = 0x550C7DC3;
K[12] = 0x72BE5D74;
K[13] = 0x80DEB1FE;
K[14] = 0x9BDC06A7;
K[15] = 0xC19BF174;
K[16] = 0xE49B69C1;
K[17] = 0xEFBE4786;
K[18] = 0xFC19DC6;
K[19] = 0x240CA1CC;
K[20] = 0x2DE92C6F;
K[21] = 0x4A7484AA;
K[22] = 0x5CB0A9DC;
K[23] = 0x76F988DA;
K[24] = 0x983E5152;
K[25] = 0xA831C66D;
K[26] = 0xB00327C8;
K[27] = 0xBF597FC7;
K[28] = 0xC6E00BF3;
K[29] = 0xD5A79147;
K[30] = 0x6CA6351;
K[31] = 0x14292967;
K[32] = 0x27B70A85;
K[33] = 0x2E1B2138;
K[34] = 0x4D2C6DFC;
K[35] = 0x53380D13;
K[36] = 0x650A7354;
K[37] = 0x766A0ABB;
K[38] = 0x81C2C92E;
K[39] = 0x92722C85;
K[40] = 0xA2BFE8A1;
K[41] = 0xA81A664B;
K[42] = 0xC24B8B70;
K[43] = 0xC76C51A3;
K[44] = 0xD192E819;
K[45] = 0xD6990624;
K[46] = 0xF40E3585;
K[47] = 0x106AA070;
K[48] = 0x19A4C116;
K[49] = 0x1E376C08;
K[50] = 0x2748774C;
K[51] = 0x34B0BCB5;
K[52] = 0x391C0CB3;
K[53] = 0x4ED8AA4A;
K[54] = 0x5B9CCA4F;
K[55] = 0x682E6FF3;
K[56] = 0x748F82EE;
K[57] = 0x78A5636F;
K[58] = 0x84C87814;
K[59] = 0x8CC70208;
K[60] = 0x90BEFFFA;
K[61] = 0xA4506CEB;
K[62] = 0xBEF9A3F7;
K[63] = 0xC67178F2;
}
private ulong AddUnsigned(ulong lX, ulong lY)
{
ulong lX8 = lX & 0x80000000;
ulong lY8 = lY & 0x80000000;
ulong lX4 = lX & 0x40000000;
ulong lY4 = lY & 0x40000000;
ulong lResult = (lX & 0x3fffffff) + (lY & 0x3fffffff);
if ((lX4 & lY4)!=0)
{
lResult = lResult ^ 0x80000000 ^ lX8 ^ lY8;
}
else if (0!=(lX4 | lY4))
{
if (0!=(lResult & 0x40000000))
{
lResult = lResult ^ 0xC0000000 ^ lX8 ^ lY8;
}
else
{
lResult = lResult ^ 0x40000000 ^ lX8 ^ lY8;
}
}
else
{
lResult = lResult ^ lX8 ^ lY8;
}
return lResult;
}
--------------------编程问答-------------------- private ulong AddUnsigned(ulong lX, ulong lY)
{
ulong lX8 = lX & 0x80000000;
ulong lY8 = lY & 0x80000000;
ulong lX4 = lX & 0x40000000;
ulong lY4 = lY & 0x40000000;
ulong lResult = (lX & 0x3fffffff) + (lY & 0x3fffffff);
if ((lX4 & lY4)!=0)
{
lResult = lResult ^ 0x80000000 ^ lX8 ^ lY8;
}
else if (0!=(lX4 | lY4))
{
if (0!=(lResult & 0x40000000))
{
lResult = lResult ^ 0xC0000000 ^ lX8 ^ lY8;
}
else
{
lResult = lResult ^ 0x40000000 ^ lX8 ^ lY8;
}
}
else
{
lResult = lResult ^ lX8 ^ lY8;
}
return lResult;
}
public int AscW(string inString)
{
return inString[0];
}
private ulong Ch(ulong x, ulong y, ulong z)
{
return (x & y) ^ (~x & z);
}
private ulong[] ConvertToWordArray(string sMessage)
{
const long MODULUS_BITS = 512 ;
const long CONGRUENT_BITS = 448;
ulong lWordCount;
ulong lMessageLength = this.Len(sMessage);
ulong lNumberOfWords = (((lMessageLength + ((MODULUS_BITS - CONGRUENT_BITS) / BITS_TO_A_BYTE)) / (MODULUS_BITS / BITS_TO_A_BYTE)) + 1) * (MODULUS_BITS / BITS_TO_A_WORD);
ulong[] lWordArray = new ulong[lNumberOfWords];
ulong lBytePosition = 0;
ulong lByteCount = 0;
while (lByteCount < lMessageLength)
{
lWordCount = lByteCount / BYTES_TO_A_WORD;
lBytePosition = (3 - (lByteCount % BYTES_TO_A_WORD)) * BITS_TO_A_BYTE;
ulong lByte = (ulong)this.AscW(this.Mid(sMessage, (long)lByteCount + 1, 1L));
lWordArray[lWordCount] = lWordArray[lWordCount] | this.LShift(lByte, lBytePosition);
lByteCount += 1;
}
lWordCount = lByteCount / BYTES_TO_A_WORD;
lBytePosition = (3 - (lByteCount % BYTES_TO_A_WORD)) * BITS_TO_A_BYTE;
lWordArray[lWordCount] = lWordArray[lWordCount] | this.LShift(0x80, lBytePosition);
lWordArray[lNumberOfWords - 1] = this.LShift((ulong)lMessageLength, 3);
lWordArray[lNumberOfWords - 2] = this.RShift((ulong)lMessageLength, 29);
return lWordArray;
}
private ulong Gamma0(ulong x)
{
return (this.S(x, 7) ^ this.S(x, 18) ^ this.R(x, 3)) ;
}
private ulong Gamma1(ulong x)
{
return (S(x, 17) ^ S(x, 19) ^ R(x, 10));
}
public string Hex(ulong inNumber)
{
return inNumber.ToString("x");
}
public long InStr(string inString, string findString)
{
long InStr=0;
if ((findString != null) && (findString.Length > 0))
{
InStr = inString.IndexOf(findString) + 1;
}
return InStr;
}
public string LCase(string inString)
{
return inString.ToLower();
}
public ulong Len(string inString)
{
if (inString == null)
{
return 0;
}
return (ulong)inString.Length;
}
--------------------编程问答-------------------- private ulong LShift(ulong lValue, ulong iShiftBits)
{
if (iShiftBits == 0)
{
return lValue;
}
if (iShiftBits == 31)
{
if ((lValue & 1L) !=0)
{
return 0x80000000;
}
return 0;
}
if(iShiftBits < 0 || iShiftBits > 31)
{
throw new Exception("error 6");
}
if ((lValue & this.m_l2Power[31 - iShiftBits])!=0)
{
return ((lValue & this.m_lOnBits[31 - (iShiftBits + 1)]) * this.m_l2Power[iShiftBits]) | 0x80000000;
}
return (lValue & this.m_lOnBits[31 - iShiftBits]) * this.m_l2Power[iShiftBits];
}
private ulong Maj(ulong x, ulong y, ulong z)
{
return (x & y) ^ (x & z) ^ (y & z);
}
public string Mid(string inString, long posStart, long intLength)
{
return inString.Substring((int)(posStart - 1L), (int)intLength);
}
private ulong R(ulong x, ulong n)
{
return this.RShift(x, n & this.m_lOnBits[4]);
}
public string Replace(string inString, string strFrom, string strTo)
{
return inString.Replace(strFrom, strTo);
}
public string Right(string inString, long numCharacters)
{
if (numCharacters > 0L)
{
if (numCharacters >= inString.Length)
{
return inString;
}
return inString.Substring(inString.Length - ((int)numCharacters), (int)numCharacters);
}
return "";
}
private ulong RShift(ulong lValue, ulong iShiftBits)
{
if (iShiftBits==0)
{
return lValue;
}
if (iShiftBits == 31)
{
if ((lValue & 0x80000000)!=0)
{
return 1;
}
return 0;
}
if (iShiftBits < 0 || iShiftBits > 31 )
{
throw new Exception("error 6");
}
ulong lRShift = (lValue & 0x7ffffffe) / this.m_l2Power[iShiftBits];
if ((lValue & 0x80000000) != 0)
{
lRShift = lRShift | (0x40000000 / this.m_l2Power[iShiftBits - 1]);
}
return lRShift;
}
private ulong S(ulong x, ulong n)
{
return this.RShift(x, n & this.m_lOnBits[4]) | this.LShift(x, 32 - n & this.m_lOnBits[4]);
}
public string toSHA256(string sMessage)
{
ulong[] HASH = new ulong[8];
ulong[] W = new ulong[64];
HASH[0] = 0x6a09e667;
HASH[1] = 0xBB67AE85;
HASH[2] = 0x3c6ef372;
HASH[3] = 0xA54FF53A;
HASH[4] = 0x510e527f;
HASH[5] = 0x9B05688C;
HASH[6] = 0x1f83d9ab;
HASH[7] = 0x5be0cd19;
ulong T1, T2;
ulong[] M = this.ConvertToWordArray(sMessage);
for (int i = 0; i <= this.UBound(M);i+=16 )
{
ulong a = HASH[0];
ulong b = HASH[1];
ulong c = HASH[2];
ulong d = HASH[3];
ulong e = HASH[4];
ulong f = HASH[5];
ulong g = HASH[6];
ulong h = HASH[7];
for(int j=0;j<=63;j++)
{
if(j<16)
{
W[j] = M[j + i];
}
else
W[j] = AddUnsigned(AddUnsigned(AddUnsigned(Gamma1(W[j - 2]), W[j - 7]), Gamma0(W[j - 15])), W[j - 16]);
T1 = AddUnsigned(AddUnsigned(AddUnsigned(AddUnsigned(h, Sigma1(e)), Ch(e, f, g)), K[j]), W[j]);
T2 = AddUnsigned(Sigma0(a), Maj(a, b, c));
h = g;
g = f;
f = e;
e = AddUnsigned(d, T1);
d = c;
c = b;
b = a;
a = AddUnsigned(T1, T2);
}
HASH[0] = AddUnsigned(a, HASH[0]);
HASH[1] = AddUnsigned(b, HASH[1]);
HASH[2] = AddUnsigned(c, HASH[2]);
HASH[3] = AddUnsigned(d, HASH[3]);
HASH[4] = AddUnsigned(e, HASH[4]);
HASH[5] = AddUnsigned(f, HASH[5]);
HASH[6] = AddUnsigned(g, HASH[6]);
HASH[7] = AddUnsigned(h, HASH[7]);
}
return this.LCase(this.Right("00000000" + this.Hex(HASH[0]), 8L) + this.Right("00000000" + this.Hex(HASH[1]), 8L) + this.Right("00000000" + this.Hex(HASH[2]), 8L) + this.Right("00000000" + this.Hex(HASH[3]), 8L) + this.Right("00000000" + this.Hex(HASH[4]), 8L) + this.Right("00000000" + this.Hex(HASH[5]), 8L) + this.Right("00000000" + this.Hex(HASH[6]), 8L) + this.Right("00000000" + this.Hex(HASH[7]), 8L));
}
private ulong Sigma0(ulong x)
{
return this.S(x, 2) ^ this.S(x, 13) ^ this.S(x, 0x16);
}
private ulong Sigma1(ulong x)
{
return this.S(x, 6) ^ this.S(x, 11) ^ this.S(x, 0x19);
}
public long UBound(Array inArray)
{
return (long)inArray.GetUpperBound(0);
}
}//end of class mySHA256
补充：.NET技术 , C#
