How to decode TripleDESCryptoService string in php?

Question

The following code decrypts a string in VB:

Public Function Desencriptar(ByVal Input As String) As String Dim IV() As Byte = ASCIIEncoding.ASCII.GetBytes("abcdefgh") Dim EncryptionKey() As Byte = Convert.FromBase64String("hereGoesTheKey") Dim buffer() As Byte = Convert.FromBase64String(Input) Dim des As TripleDESCryptoServiceProvider = New TripleDESCryptoServiceProvider des.Key = EncryptionKey des.IV = IV Return Encoding.UTF8.GetString(des.CreateDecryptor().TransformFinalBlock(buffer, 0, buffer.Length())) End Function 

I would like to know how to duplicate this process in php script for mobile app service. Thanks.

Answer 1

 this code might help. <?php $key = "123456"; function pkcs7_pad($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); return $text . str_repeat(chr($pad), $pad); } $input = pkcs7_pad("test", 16);//16byte // $key = md5(utf8_encode($key), true); $td = mcrypt_module_open('tripledes', '', 'ecb', '');//ecb mode $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND); mcrypt_generic_init($td, $key, $iv); $encrypted_data = mcrypt_generic($td, $input); mcrypt_generic_deinit($td); mcrypt_module_close($td); echo base64_encode($encrypted_data); ?> 

and view this link for more details 3DES