各コンピューターに固有のキーを作成するアプリケーションを作成しています。この情報は、OS のシリアル番号とプロセッサ ID から取得されます。
文字列を「短く」する方法はありますか? 多分それをHEXまたは何か他のものに変換することによって...
その理由は次のとおりです。詳細を取得するコードの VB6 セクション (http://www.planet-source-code.com/vb...48926&lngWId=1) を使用していましたが、出力は 13 桁しかありません。私のはもっと長いですが、同じ情報を取得します...
ところで、上に投稿したリンクは複数の賞を受賞しましたが、.NET に変換する際に大きな問題が発生しています。誰かがそれを変換したことがありますか、または変換した人を知っていますか? それとも実際に機能するツールですか？
ありがとう
編集
ここに完全なリンクがあります: http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=48926&lngWId=1
「ハッシュアルゴリズム」または「ハッシュ関数」が必要なようです。それらは一般的な概念です：http：//en.wikipedia.org/wiki/Hash_function
一般的に言えば、文字列を取得してハッシュ番号を返す独自の関数を作成するだけですが、.NET Frameworkを使用する適切なコードがいくつかあります：http ：//support.microsoft.com/kb/301053
Here is a working example which retrieves the Processor ID, for the first Processor found, and the OS Serial Number; it concatenates these to strings together and then performs various encodings on them.
This is a simple VB.Net Console project. Be sure to reference the System.Management assembly in your project. Just copy and paste this code example into the main module, set a breakpoint at the end of Sub Main(), and look at the various results.
Module Module1
Sub Main()
Dim uniqueID As String = GetUniqueID()
' convert it to a base64 string
Dim encoding As New Text.ASCIIEncoding()
Dim result1 = Convert.ToBase64String(encoding.GetBytes(uniqueID))
' compress it
Dim result2 As String = CompressString(uniqueID)
Dim result3 As String = DecompressString(result2)
' encrypt it
Dim result4 As String = AES_Encrypt(uniqueID, "password")
Dim result5 As String = AES_Decrypt(result4, "password")
' hash it
Dim result6 As String = HashString(uniqueID)
End Sub
Private Function GetUniqueID() As String
Dim result As String = GetOSSerialNumber()
Dim processorIDs() As String = GetProcessorIDs()
If ((processorIDs IsNot Nothing) AndAlso (processorIDs.Count > 0)) Then
result &= processorIDs(0)
End If
Return result
End Function
Private Function GetProcessorIDs() As String()
Dim result As New List(Of String)
Dim searcher = New System.Management.ManagementObjectSearcher("Select ProcessorId from Win32_Processor")
For Each managementObj In searcher.Get()
result.Add(CStr(managementObj.Properties("ProcessorId").Value))
Next
Return result.ToArray()
End Function
Private Function GetOSSerialNumber() As String
Dim result As String = ""
Dim searcher = New System.Management.ManagementObjectSearcher("Select SerialNumber from Win32_OperatingSystem")
For Each managementObj In searcher.Get()
result = CStr(managementObj.Properties("SerialNumber").Value)
Next
Return result
End Function
Public Function CompressString(ByVal source As String) As String
Dim result As String = ""
Dim encoding As New Text.ASCIIEncoding()
Dim bytes() As Byte = encoding.GetBytes(source)
Using ms As New IO.MemoryStream
Using gzsw As New System.IO.Compression.GZipStream(ms, IO.Compression.CompressionMode.Compress)
gzsw.Write(bytes, 0, bytes.Length)
gzsw.Close()
result = Convert.ToBase64String(ms.ToArray)
End Using
End Using
Return result
End Function
Public Function DecompressString(ByVal source As String) As String
Dim result As String = ""
Dim bytes() As Byte = Convert.FromBase64String(source)
Using ms As New IO.MemoryStream(bytes)
Using gzsw As New System.IO.Compression.GZipStream(ms, IO.Compression.CompressionMode.Decompress)
Dim data(CInt(ms.Length)) As Byte
gzsw.Read(data, 0, CInt(ms.Length))
Dim encoding As New Text.ASCIIEncoding()
result = encoding.GetString(data)
End Using
End Using
Return result
End Function
Public Function AES_Encrypt(ByVal input As String, ByVal pass As String) As String
Dim AES As New System.Security.Cryptography.RijndaelManaged
Dim Hash_AES As New System.Security.Cryptography.MD5CryptoServiceProvider
Dim encrypted As String = ""
Try
Dim hash(31) As Byte
Dim temp As Byte() = Hash_AES.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(pass))
Array.Copy(temp, 0, hash, 0, 16)
Array.Copy(temp, 0, hash, 15, 16)
AES.Key = hash
AES.Mode = Security.Cryptography.CipherMode.ECB
Dim DESEncrypter As System.Security.Cryptography.ICryptoTransform = AES.CreateEncryptor
Dim Buffer As Byte() = System.Text.ASCIIEncoding.ASCII.GetBytes(input)
encrypted = Convert.ToBase64String(DESEncrypter.TransformFinalBlock(Buffer, 0, Buffer.Length))
Catch ex As Exception
End Try
Return encrypted
End Function
Public Function AES_Decrypt(ByVal input As String, ByVal pass As String) As String
Dim AES As New System.Security.Cryptography.RijndaelManaged
Dim Hash_AES As New System.Security.Cryptography.MD5CryptoServiceProvider
Dim decrypted As String = ""
Try
Dim hash(31) As Byte
Dim temp As Byte() = Hash_AES.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(pass))
Array.Copy(temp, 0, hash, 0, 16)
Array.Copy(temp, 0, hash, 15, 16)
AES.Key = hash
AES.Mode = Security.Cryptography.CipherMode.ECB
Dim DESDecrypter As System.Security.Cryptography.ICryptoTransform = AES.CreateDecryptor
Dim Buffer As Byte() = Convert.FromBase64String(input)
decrypted = System.Text.ASCIIEncoding.ASCII.GetString(DESDecrypter.TransformFinalBlock(Buffer, 0, Buffer.Length))
Catch ex As Exception
End Try
Return decrypted
End Function
Private Function HashString(ByVal source As String) As String
Dim encoding As New Text.ASCIIEncoding()
Dim bytes() As Byte = encoding.GetBytes(source)
Dim workingHash() As Byte = New System.Security.Cryptography.MD5CryptoServiceProvider().ComputeHash(bytes)
Dim result As String = ""
For Each b In workingHash
result = result & b.ToString("X2")
Next
Return result
End Function
End Module