B4J Question Need Help Convert C# code To B4j

behnam_tr · Feb 23, 2024

Hi everyone
I have a C# code but I am not familiar with this language
I want to convert this code to b4j code
Friends who know, please help

C#:

    private void GenerateToken()
    {
        Random random = new Random();
        string text = random.NextDouble().ToString();
        int[] array = new int[8] { 1382640238, 1684104556, 1701069673, 1885889906, 1299145829, 1298492783, 1920553844, 1919246701 };
        uint[] array2 = new uint[4] { 825438784u, 1935959604u, 892749397u, 1663718965u };
        List<byte> list = new List<byte>();
        List<byte> list2 = new List<byte>();
        for (int i = 0; i < array.Length; i++)
        {
            list.AddRange(BitConverter.GetBytes(array[i]).Reverse());
        }
        for (int j = 0; j < array2.Length; j++)
        {
            list2.AddRange(BitConverter.GetBytes(array2[j]).Reverse());
        }
        byte[] inArray = Encrypter(text, list.ToArray(), list2.ToArray());
        string value = Convert.ToBase64String(inArray);
        
        //["s"] = text;
        //["c"] = value;
    }

    private byte[] Encrypter(string randomst, byte[] array1, byte[] array2)
    {
        if (randomst == null || randomst.Length <= 0)
        {
            throw new ArgumentNullException("plainText");
        }
        if (array1 == null || array1.Length == 0)
        {
            throw new ArgumentNullException("Key");
        }
        if (array2 == null || array2.Length == 0)
        {
            throw new ArgumentNullException("IV");
        }
        using Aes aes = Aes.Create();
        aes.Key = array1;
        aes.IV = array2;
        ICryptoTransform transform = aes.CreateEncryptor(aes.Key, aes.IV);
        using MemoryStream memoryStream = new MemoryStream();
        using CryptoStream stream = new CryptoStream(memoryStream, transform, CryptoStreamMode.Write);
        using (StreamWriter streamWriter = new StreamWriter(stream))
        {
            streamWriter.Write(randomst);
        }
        return memoryStream.ToArray();
    }

JohnJ · Feb 23, 2024

behnam_tr said:

Hi everyone
I have a C# code but I am not familiar with this language
I want to convert this code to b4j code
Friends who know, please help

C#:

    private void GenerateToken()
    {
        Random random = new Random();
        string text = random.NextDouble().ToString();
        int[] array = new int[8] { 1382640238, 1684104556, 1701069673, 1885889906, 1299145829, 1298492783, 1920553844, 1919246701 };
        uint[] array2 = new uint[4] { 825438784u, 1935959604u, 892749397u, 1663718965u };
        List<byte> list = new List<byte>();
        List<byte> list2 = new List<byte>();
        for (int i = 0; i < array.Length; i++)
        {
            list.AddRange(BitConverter.GetBytes(array[i]).Reverse());
        }
        for (int j = 0; j < array2.Length; j++)
        {
            list2.AddRange(BitConverter.GetBytes(array2[j]).Reverse());
        }
        byte[] inArray = Encrypter(text, list.ToArray(), list2.ToArray());
        string value = Convert.ToBase64String(inArray);
       
        //["s"] = text;
        //["c"] = value;
    }

    private byte[] Encrypter(string randomst, byte[] array1, byte[] array2)
    {
        if (randomst == null || randomst.Length <= 0)
        {
            throw new ArgumentNullException("plainText");
        }
        if (array1 == null || array1.Length == 0)
        {
            throw new ArgumentNullException("Key");
        }
        if (array2 == null || array2.Length == 0)
        {
            throw new ArgumentNullException("IV");
        }
        using Aes aes = Aes.Create();
        aes.Key = array1;
        aes.IV = array2;
        ICryptoTransform transform = aes.CreateEncryptor(aes.Key, aes.IV);
        using MemoryStream memoryStream = new MemoryStream();
        using CryptoStream stream = new CryptoStream(memoryStream, transform, CryptoStreamMode.Write);
        using (StreamWriter streamWriter = new StreamWriter(stream))
        {
            streamWriter.Write(randomst);
        }
        return memoryStream.ToArray();
    }

Try running it through one of the AIs

behnam_tr · Feb 23, 2024

JohnJ said:
Try running it through one of the AIs

not help for this !!

TILogistic · Feb 23, 2024

?

Base64 and Encryption library

Here's a library that, for the moment, can perform Base64 encoding and decoding and symmetric algorithm encryption and decryption. Tested symmetric algorithms are DES, Triple DES and AES (Rijndael). As the Java encryption rountines are all byte array oriented you will need my ByteConverter...

www.b4x.com

ByteConverter library

It's occasionally useful to be able to poke around in things as arrays of bytes so this library lets you do it. It can transform arrays of primitive types to and from arrays of bytes with the "endian-ness" of the conversion specified. If you need endian-ness you will either know about it or...

www.b4x.com

optional

[B4X] BytesBuilder - simplifies working with arrays of bytes

Edit: BytesBuilder is included in B4XCollections library (named B4XBytesBuilder). BytesBuilder class, which is compatible with B4A, B4i and B4J, makes it easier to work with bytes. You can think of it as a combination of String and StringBuilder, but instead of holding characters it holds...

www.b4x.com

etc..
Search

Search Results

www.b4x.com

byz · Feb 23, 2024

Suggest switching to vb.net first, and then reading and understanding the code should be easier. This is an online tool。

Code Converter C# to VB and VB to C# – Telerik

Telerik Code Converter by Progress is free online code converter from C# to VB and from VB to C#. No registration required. Check it out.

converter.telerik.com

Mariano Ismael Castro · Feb 24, 2024

Hello, I give you a small preview, you continue with the rest, I hope it can help you. The first function seems to be ready but I don't know.
Good luck

Functions:

'libs = ByteConverter
Public Sub GenerateToken
    Dim text As String = Rnd(1, 1000000000)
    Dim Array1 As List = Array As Int(1382640238, 1684104556, 1701069673, 1885889906, 1299145829, 1298492783, 1920553844, 1919246701)
    Dim Array2 As List = Array As Int(825438784, 1935959604, 892749397, 1663718965) 'uint don'n exist in b4x

    Dim list, list2 As List
    list.Initialize
    list2.Initialize
    
    Dim b As ByteConverter
    Dim java As JavaObject
    For i = 0 To Array1.Size - 1
        Dim bytes As List = b.IntsToBytes(Array As Int(Array1.Get(i)))
        java.InitializeStatic("java.util.Collections").RunMethod("reverse", Array(bytes))
        list.AddAll(Array(bytes))
    Next
    
    For j = 0 To Array2.Size - 1
        Dim bytes2 As List = b.IntsToBytes(Array As Int(Array2.Get(j)))
'        Log(bytes2)
        java.InitializeStatic("java.util.Collections").RunMethod("reverse", Array(bytes2))
'        Log(bytes2)
        list2.AddAll(Array(bytes))
    Next
    Log(list2)
    
    Dim inArray() As Byte
    inArray = Encrypter(text, list, list2)
    Dim value As String = BytesToString(inArray, 0, inArray.Length, "UTF8")
    Log(value)
    '["s"] = text
    '["c"] = value
End Sub


Private Sub Encrypter(randomst As String, array1() As Byte, array2() As Byte) As Byte()
    If randomst = Null Or randomst.Length <= 0 Then
        Log("plainText")
        Return Null
    End If
    If array1 = Null Or array1.Length = 0 Then
        Log("Key")
        Return Null
    End If
    If array2 = Null Or array2.Length = 0 Then
        Log("IV")
        Return Null
    End If
    
'    Dim aes As AES
'    aes.Initialize("AES")
'    aes.Key = array1
'    aes.IV = array2
    
'    Dim transform As B4XCipher
'    transform.Initialize("AES", aes.Key, aes.IV, False)
    
    Dim memoryStream As OutputStream
    memoryStream.InitializeToBytesArray(0)
    Dim stream As OutputStream
    stream.InitializeToBytesArray(0)
    
    Dim array4() As Byte = memoryStream.ToBytesArray
    stream.WriteBytes(array4, 0, array4.Length)
    
    
    Dim streamWriter As TextWriter
    streamWriter.Initialize(stream)
    streamWriter.Write(randomst)
    streamWriter.Close
    stream.Close
    
    Return memoryStream.ToBytesArray
End Sub

B4J Question Need Help Convert C# code To B4j

behnam_tr

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