Choose your future

Cisco Type 7 - очень примитивная штука. Первые две цифры пароля - десятичное смещение в таблице. Далее выбирай из таблицы, применяй XOR и будет тебе ASCII. Вот тебе вариант на Visual Basic (он немного более хитропопый, чем у Cisco - позволяет читать таблицу и в обратную сторону)

' Decrypt the string
'
Function Decrypt(strSource As String, intMethod As Integer) As String
Dim strInputString As String, lLen As Long

On Error GoTo TheDecErrorHandler

' Check input
strInputString = Trim(strSource)
lLen = Len(strInputString)
' The string shall be at least four characters long and must have even number of characters
If lLen < 4 Or lLen Mod 2 <> 0 Then
    Decrypt = ""
    Exit Function
End If

' Only 0 (left -> right and 1 (right <- left) are allowed
If intMethod <> 0 Then intMethod = 1

' Hash Table
Dim strHexHash() As String, lLastHashNum As Long
strHexHash = Split("0x64,0x73,0x66,0x64,0x3b,0x6b,0x66,0x6f,0x41,0x2c,0x2e,0x69,0x79,0x65,0x77,0x72,0x6b,0x6c,0x64,0x4a,0x4b,0x44,0x48,0x53,0x55,0x42,0x73,0x67,0x76,0x63,0x61,0x36,0x39,0x38,0x33,0x34,0x6e,0x63,0x78,0x76,0x39,0x38,0x37,0x33,0x32,0x35,0x34,0x6b,0x3b,0x66,0x67,0x38,0x37", ",")

lLastHashNum = UBound(strHexHash)

' Index - must be Numeric and Dec
Dim strIndex As String, lIdx As Long

strIndex = Mid(strInputString, 1, 2)
If Not IsNumeric(strIndex) Then
    Decrypt = ""
    Exit Function
End If

lIdx = CLng(strIndex)

' Index must fit the array
If lIdx < 0 Or lIdx > lLastHashNum Then
    Decrypt = ""
    Exit Function
End If

' Decrypt
Dim strOutputString As String, l As Long, strSourceChar As String, intChar As Integer, intHash As Integer, intXORChar As Integer, strDestChar As String

For l = 3 To lLen Step 2
    
    ' Source char
    strSourceChar = Mid(strInputString, l, 2)
    
    ' Dec character
    intChar = CInt("&H" & strSourceChar)
    
    ' Hash from the array
    intHash = CInt(Replace(strHexHash(lIdx), "0x", "&H"))
    
    ' XOR
    intXORChar = intChar Xor intHash
    
    ' Dest character
    strDestChar = Chr(intXORChar)
    
    strOutputString = strOutputString & strDestChar
    
    ' Move around the hash table
    If intMethod = 0 Then
        lIdx = lIdx + 1
        If lIdx > lLastHashNum Then lIdx = 0
    Else
        lIdx = lIdx - 1
        If lIdx < 0 Then lIdx = lLastHashNum
    End If
    
Next l

Decrypt = strOutputString
Exit Function

TheDecErrorHandler:
Decrypt = ""
End Function