Convert VB.NET Encryption Method to PHP

Question

Was hoping someone would be able to help me out.

I desperately need this VB.NET code converted to PHP.

This is the Instructions I received:

To test your encryption, encrypt the following word with these keys and check if you get the same result:

Text to encrypt: MyPassword
Salt key: *&^%$#@!
PBE Key: FWV70700
PBE IV: WEBSV

NOTE:
Encrypted text: A+V3JATKUt/T91HiF23eOA==
Following is a short VB.Net code snippet that will do the encryption, as we need it. The VB program has a form (From1) with two text boxes (TextBox1 and TextBox2) and one button (Button1):

VB.NET Function:

Imports System
Imports System.IO
Imports System.Xml
Imports System.Text
Imports System.Security.Cryptography
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    TextBox2.Text = EncryptText(TextBox1.Text)
End Sub
Public Shared Function EncryptText(ByVal strText As String) As String
    Dim pdbPassword As PasswordDeriveBytes
    Dim pdbIV As PasswordDeriveBytes
    Dim DES As New DESCryptoServiceProvider
    Dim salt() As Byte = {Asc("*"), Asc("&"), Asc("^"), Asc("%"), Asc("$"), Asc("#"), Asc("@"), Asc("!")}
    Dim ms As New System.IO.MemoryStream
    Dim cs As CryptoStream
    Dim plainText As String = strText
    Dim plainBytes() As Byte
    plainBytes = System.Text.Encoding.UTF8.GetBytes(plainText)
    pdbPassword = New PasswordDeriveBytes("FWV70700", salt)
    pdbPassword.HashName = "SHA1"
    pdbPassword.IterationCount = 1000
    DES.Key = pdbPassword.GetBytes(8)

    pdbIV = New PasswordDeriveBytes("WEBSV", salt)
    pdbIV.HashName = "SHA1"
    pdbIV.IterationCount = 1000
    DES.IV = pdbIV.GetBytes(8)
    cs = New CryptoStream(ms, DES.CreateEncryptor, CryptoStreamMode.Write)
    cs.Write(plainBytes, 0, plainBytes.Length)
    cs.FlushFinalBlock()
    Return Convert.ToBase64String(ms.ToArray)
End Function

Could someone PLEASE convert this to PHP for me?

Stack Overflow is not here to do your work.

Oswald
– Oswald

2011-12-02 11:37:57 +00:00
Commented Dec 2, 2011 at 11:37 — Oswald
– Oswald, Commented Dec 2, 2011 at 11:37
If you don't want to do this yourself try rent-a-coder?

Matt Wilko
– Matt Wilko

2011-12-02 15:06:19 +00:00
Commented Dec 2, 2011 at 15:06 — Matt Wilko
– Matt Wilko, Commented Dec 2, 2011 at 15:06

Community · Accepted Answer · 2017-05-23 11:48:47Z

1

You need to find the according functions that do the same in PHP and then code it in PHP. It's best to do this step by step so you can compare if it's already working or not. As you have the vb.net code you can do this.

Sometimes functions vary a bit between .net and PHP, so there might be specific issues you need to take care about, so better do everything step by step and double checked.

See as well this related question: Same string, different SHA1 hash values obtained from VB.net and PHP.

edited May 23, 2017 at 11:48

CommunityBot

11 silver badge

answered Dec 2, 2011 at 12:22

hakre

200k55 gold badges454 silver badges865 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Convert VB.NET Encryption Method to PHP

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related