GSM移动通信系统的A3A8加密算法源码
GSM移动通信系统的A3A8加密算法源码
'GSM移动通信系统的A3A8加密算法
Private table(4, 511) As Byte
Private Type SimOutputData
SRES(3) As Byte
Kc(7) As Byte
End Type
Private Sub BuildTable()
Dim x As Integer
For x = 0 To 511
table(0, x) = Choose(x + 1, 102, 177, 186, 162, 2, 156, 112, 75, 55, 25, 8, 12, 251, 193, 246, 188, 109, 213, 151, _
53, 42, 79, 191, 115, 233, 242, 164, 223, 209, 148, 108, 161, 252, 37, 244, 47, 64, 211, 6, 237, 185, 160, 139, 113, 76, _
138, 59, 70, 67, 26, 13, 157, 63, 179, 221, 30, 214, 36, 166, 69, 152, 124, 207, 116, 247, 194, 41, 84, 71, 1, 49, _
14, 95, 35, 169, 21, 96, 78, 215, 225, 182, 243, 28, 92, 201, 118, 4, 74, 248, 128, 17, 11, 146, 132, 245, 48, 149, _
90, 120, 39, 87, 230, 106, 232, 175, 19, 126, 190, 202, 141, 137, 176, 250, 27, 101, 40, 219, 227, 58, 20, 51, 178, 98, _
216, 140, 22, 32, 121, 61, 103, 203, 72, 29, 110, 85, 212, 180, 204, 150, 183, 15, 66, 172, 196, 56, 197, 158, 0, 100, _
45, 153, 7, 144, 222, 163, 167, 60, 135, 210, 231, 174, 165, 38, 249, 224, 34, 220, 229, 217, 208, 241, 68, 206, 189, 125, _
255, 239, 54, 168, 89, 123, 122, 73, 145, 117, 234, 143, 99, 129, 200, 192, 82, 104, 170, 136, 235, 93, 81, 205, 173, 236, _
94, 105, 52, 46, 228, 198, 5, 57, 254, 97, 155, 142, 133, 199, 171, 187, 50, 65, 181, 127, 107, 147, 226, 184, 218, 131, 33, _
77, 86, 31, 44, 88, 62, 238, 18, 24, 43, 154, 23, 80, 159, 134, 111, 9, 114, 3, 91, 16, 130, 83, 10, 195, 240, 253, _
119, 177, 102, 162, 186, 156, 2, 75, 112, 25, 55, 12, 8, 193, 251, 188, 246, 213, 109, 53, 151, 79, 42, 115, 191, 242, _
233, 223, 164, 148, 209, 161, 108, 37, 252, 47, 244, 211, 64, 237, 6, 160, 185, 113, 139, 138, 76, 70, 59, 26, 67, 157, _
13, 179, 63, 30, 221, 36, 214, 69, 166, 124, 152, 116, 207, 194, 247, 84, 41, 1, 71, 14, 49, 35, 95, 21, 169, 78, _
96, 225, 215, 243, 182, 92, 28, 118, 201, 74, 4, 128, 248, 11, 17, 132, 146, 48, 245, 90, 149, 39, 120, 230, 87, 232, _
106, 19, 175, 190, 126, 141, 202, 176, 137, 27, 250, 40, 101, 227, 219, 20, 58, 178, 51, 216, 98, 22, 140, 121, 32, 103, _
61, 72, 203, 110, 29, 212, 85, 204, 180, 183, 150, 66, 15, 196, 172, 197, 56, 0, 158, 45, 100, 7, 153, 222, 144, 167, _
163, 135, 60, 231, 210, 165, 174, 249, 38, 34, 224, 229, 220, 208, 217, 68, 241, 189, 206, 255, 125, 54, 239, 89, 168, 122, _
123, 145, 73, 234, 117, 99, 143, 200, 129, 82, 192, 170, 104, 235, 136, 81, 93, 173, 205, 94, 236, 52, 105, 228, 46, 5, _
198, 254, 57, 155, 97, 133, 142, 171, 199, 50, 187, 181, 65, 107, 127, 226, 147, 218, 184, 33, 131, 86, 77, 44, 31, 62, _
88, 18, 238, 43, 24, 23, 154, 159, 80, 111, 134, 114, 9, 91, 3, 130, 16, 10, 83, 240, 195, 119, 253)
Next
For x = 0 To 255
table(1, x) = Choose(x + 1, 19, 11, 80, 114, 43, 1, 69, 94, 39, 18, 127, 117, 97, 3, 85, 43, _
27, 124, 70, 83, 47, 71, 63, 10, 47, 89, 79, 4, 14, 59, 11, 5, _
35, 107, 103, 68, 21, 86, 36, 91, 85, 126, 32, 50, 109, 94, 120, 6, _
53, 79, 28, 45, 99, 95, 41, 34, 88, 68, 93, 55, 110, 125, 105, 20, _
90, 80, 76, 96, 23, 60, 89, 64, 121, 56, 14, 74, 101, 8, 19, 78, _
76, 66, 104, 46, 111, 50, 32, 3, 39, 0, 58, 25, 92, 22, 18, 51, _
57, 65, 119, 116, 22, 109, 7, 86, 59, 93, 62, 110, 78, 99, 77, 67, _
12, 113, 87, 98, 102, 5, 88, 33, 38, 56, 23, 8, 75, 45, 13, 75, _
95, 63, 28, 49, 123, 120, 20, 112, 44, 30, 15, 98, 106, 2, 103, 29, _
82, 107, 42, 124, 24, 30, 41, 16, 108, 100, 117, 40, 73, 40, 7, 114, _
82, 115, 36, 112, 12, 102, 100, 84, 92, 48, 72, 97, 9, 54, 55, 74, _
113, 123, 17, 26, 53, 58, 4, 9, 69, 122, 21, 118, 42, 60, 27, 73, _
118, 125, 34, 15, 65, 115, 84, 64, 62, 81, 70, 1, 24, 111, 121, 83, _
104, 81, 49, 127, 48, 105, 31, 10, 6, 91, 87, 37, 16, 54, 116, 126, _
31, 38, 13, 0, 72, 106, 77, 61, 26, 67, 46, 29, 96, 37, 61, 52, _
101, 17, 44, 108, 71, 52, 66, 57, 33, 51, 25, 90, 2, 119, 122, 35)
Next
For x = 0 To 127
table(2, x) = Choose(x + 1, 52, 50, 44, 6, 21, 49, 41, 59, 39, 51, 25, 32, 51, 47, 52, 43, _
37, 4, 40, 34, 61, 12, 28, 4, 58, 23, 8, 15, 12, 22, 9, 18, _
55, 10, 33, 35, 50, 1, 43, 3, 57, 13, 62, 14, 7, 42, 44, 59, _
62, 57, 27, 6, 8, 31, 26, 54, 41, 22, 45, 20, 39, 3, 16, 56, _
48, 2, 21, 28, 36, 42, 60, 33, 34, 18, 0, 11, 24, 10, 17, 61, _
29, 14, 45, 26, 55, 46, 11, 17, 54, 46, 9, 24, 30, 60, 32, 0, _
20, 38, 2, 30, 58, 35, 1, 16, 56, 40, 23, 48, 13, 19, 19, 27, _
31, 53, 47, 38, 63, 15, 49, 5, 37, 53, 25, 36, 63, 29, 5, 7)
Next
For x = 0 To 63
table(3, x) = Choose(x + 1, 1, 5, 29, 6, 25, 1, 18, 23, 17, 19, 0, 9, 24, 25, 6, 31, _
28, 20, 24, 30, 4, 27, 3, 13, 15, 16, 14, 18, 4, 3, 8, 9, _
20, 0, 12, 26, 21, 8, 28, 2, 29, 2, 15, 7, 11, 22, 14, 10, _
17, 21, 12, 30, 26, 27, 16, 31, 11, 7, 13, 23, 10, 5, 22, 19)
Next
For x = 0 To 31
table(4, x) = Choose(x + 1, 15, 12, 10, 4, 1, 14, 11, 7, 5, 0, 14, 7, 1, 2, 13, 8, _
10, 3, 4, 9, 6, 0, 3, 2, 5, 6, 8, 9, 11, 13, 15, 12)
Next
End Sub
Private Function CallA3A8(ByVal RandNumber As String, ByVal ki As String) As SimOutputData
Dim rand(15) As Byte, key(15) As Byte
Dim x(31) As Byte, bit(127) As Byte
Dim i As Integer, j As Integer, k As Integer, l As Integer
Dim m As Integer, n As Integer, y As Integer, z As Integer
Dim next_bit As Integer
Dim temp As String
For i = 0 To 15
rand(i) = Val("&H" & Mid(RandNumber, 2 * i + 1, 2))
key(i) = Val("&H" & Mid(ki, 2 * i + 1, 2))
Next i
For i = 16 To 31
x(i) = rand(i - 16)
Next
For i = 1 To 8
For j = 0 To 15
x(j) = key(j)
Next j
For j = 0 To 4
For k = 0 To 2 ^ j - 1
For l = 0 To 2 ^ (4 - j) - 1
m = l + k * (2 ^ (5 - j))
n = m + (2 ^ (4 - j))
y = (x(m) + 2 * x(n)) Mod 2 ^ (9 - j)
z = (2 * x(m) + x(n)) Mod 2 ^ (9 - j)
x(m) = table(j, y)
x(n) = table(j, z)
Next l
Next k
Next j
For j = 0 To 31
For k = 0 To 3
bit(4 * j + k) = (x(j) / (2 ^ (3 - k))) And 1
Next k
Next j
If i < 8 Then
For j = 0 To 15
x(j + 16) = 0
For k = 0 To 7
next_bit = ((8 * j + k) * 17) Mod 128
x(j + 16) = x(j + 16) Or bit(next_bit) * 2 ^ (7 - k)
Next k
Next j
End If
Next
For i = 0 To 3
CallA3A8.SRES(i) = (x(2 * i) * 16) Or x(2 * i + 1)
Next
For i = 0 To 5
CallA3A8.Kc(i) = ((x(2 * i + 18) * 64) And 255) Or (x(2 * i + 19) * 4) Or (x(2 * i + 20) / 4)
Next
CallA3A8.Kc(6) = ((x(2 * 6 + 18) * 64) And 255) Or (x(2 * 6 + 19) * 4)
CallA3A8.Kc(7) = 0
End Function
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