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POConvert vb.net byte to php
 

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  1. POConvert vb.net byte to php
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    <p>I have the following code in VB.net</p> <pre><code>Dim bytIV() As Byte = {121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62} </code></pre> <p>I'm trying to convert it to php.</p> <pre><code>$iv = array(121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62); </code></pre> <p>That doesn't work.</p> <p>The complete php code below:</p> <pre><code> &lt;?php $key = "lvvxmzmfrqeephxwmifwvyyllivhzbdi"; $input = "this is a secret keythis is a secret keythis is a secret keythis is a secret key"; $td = mcrypt_module_open('rijndael-128', '', 'ofb', ''); //$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND); $iv = array(121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62); mcrypt_generic_init($td, $key, $iv); $encrypted_data = mcrypt_generic($td, $input); mcrypt_generic_deinit($td); mcrypt_module_close($td); echo "IV: $iv &lt;br&gt;&lt;br&gt;"; echo base64_encode($encrypted_data); ?&gt; </code></pre> <p>VB.net code:</p> <pre><code>Public Function DecryptString128Bit(ByVal vstrStringToBeDecrypted As String, _ ByVal vstrDecryptionKey As String) As String Dim bytDataToBeDecrypted() As Byte Dim bytTemp() As Byte Dim bytIV() As Byte = {121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62} Dim objRijndaelManaged As New RijndaelManaged() Dim objMemoryStream As MemoryStream Dim objCryptoStream As CryptoStream Dim bytDecryptionKey() As Byte Dim intLength As Integer Dim intRemaining As Integer Dim intCtr As Integer Dim strReturnString As String = String.Empty Dim achrCharacterArray() As Char Dim intIndex As Integer ' ***************************************************************** ' ****** Convert base64 encrypted value to byte array ****** ' ***************************************************************** bytDataToBeDecrypted = Convert.FromBase64String(vstrStringToBeDecrypted) ' ******************************************************************** ' ****** Encryption Key must be 256 bits long (32 bytes) ****** ' ****** If it is longer than 32 bytes it will be truncated. ****** ' ****** If it is shorter than 32 bytes it will be padded ****** ' ****** with upper-case Xs. ****** ' ******************************************************************** intLength = Len(vstrDecryptionKey) If intLength &gt;= 32 Then vstrDecryptionKey = Strings.Left(vstrDecryptionKey, 32) Else intLength = Len(vstrDecryptionKey) intRemaining = 32 - intLength vstrDecryptionKey = vstrDecryptionKey &amp; Strings.StrDup(intRemaining, "X") End If bytDecryptionKey = Encoding.ASCII.GetBytes(vstrDecryptionKey.ToCharArray) ReDim bytTemp(bytDataToBeDecrypted.Length) objMemoryStream = New MemoryStream(bytDataToBeDecrypted) ' *********************************************************************** ' ****** Create the decryptor and write value to it after it is ****** ' ****** converted into a byte array ****** ' *********************************************************************** Try objCryptoStream = New CryptoStream(objMemoryStream, _ objRijndaelManaged.CreateDecryptor(bytDecryptionKey, bytIV), _ CryptoStreamMode.Read) objCryptoStream.Read(bytTemp, 0, bytTemp.Length) objCryptoStream.FlushFinalBlock() objMemoryStream.Close() objCryptoStream.Close() Catch End Try ' ***************************************** ' ****** Return decypted value ****** ' ***************************************** Return StripNullCharacters(Encoding.ASCII.GetString(bytTemp)) End Function Public Function StripNullCharacters(ByVal vstrStringWithNulls As String) As String Dim intPosition As Integer Dim strStringWithOutNulls As String intPosition = 1 strStringWithOutNulls = vstrStringWithNulls Do While intPosition &gt; 0 intPosition = InStr(intPosition, vstrStringWithNulls, vbNullChar) If intPosition &gt; 0 Then strStringWithOutNulls = Left$(strStringWithOutNulls, intPosition - 1) &amp; _ Right$(strStringWithOutNulls, Len(strStringWithOutNulls) - intPosition) End If If intPosition &gt; strStringWithOutNulls.Length Then Exit Do End If Loop Return strStringWithOutNulls End Function </code></pre>
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