How can I convert this code from C# to java?

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1.00/5 (2 votes)

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C#

public static string AESDecryptData(string EncryptedText, string Encryptionkey)
        {
            RijndaelManaged objrij = new RijndaelManaged();
            objrij.Mode = CipherMode.CBC;
            objrij.Padding = PaddingMode.PKCS7;

            objrij.KeySize = 0x100;
            objrij.BlockSize = 0x100;
            byte[] encryptedTextByte = Convert.FromBase64String(EncryptedText);
            byte[] passBytes = Encoding.UTF8.GetBytes(Encryptionkey);
            byte[] EncryptionkeyBytes = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
            int len = passBytes.Length;
            if (len > EncryptionkeyBytes.Length)
            {
                len = EncryptionkeyBytes.Length;
            }
            Array.Copy(passBytes, EncryptionkeyBytes, len);
            objrij.Key = EncryptionkeyBytes;
            objrij.IV = EncryptionkeyBytes;
            byte[] TextByte = objrij.CreateDecryptor().TransformFinalBlock(encryptedTextByte, 0, encryptedTextByte.Length);
            return Encoding.UTF8.GetString(TextByte);   
        }

What I have tried:

No any idea from c# to Java, anyone can help me?

Posted 3-Sep-18 20:58pm

Member 13952203

Updated 3-Sep-18 22:00pm

Herman<T>.Instance

v3

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Herman<T>.Instance 4-Sep-18 3:18am

is Google banned in your country?

https://www.carlosag.net/tools/codetranslator/

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OriginalGriff · Answer 1 · 2018-09-03T21:19:00

Quote:</divHow can I convert this code from C# to java?

Simple: Learn C#, then learn Java. Once you have a good working knowledge of both, it should be pretty easy for you.

If on the other hand you want others to do your work for you, you have come to the wrong site ... I suggest you go to Freelancer.com and ask there.

But be aware: you get what you pay for. Pay peanuts, get monkeys.

The idea of "development" is as the word suggests: "The systematic use of scientific and technical knowledge to meet specific objectives or requirements." BusinessDictionary.com[^]
That's not the same thing as "have a quick google and give up if I can't find exactly the right code".
So either pay someone to do it, or learn how to write it yourself. We aren't here to do it for you.

Maciej Los · Answer 2 · 2018-09-03T22:00:00

Solution 2

I agree with OriginalGriff.

For starters, check this: Rijndael on C# and Java · GitHub[^]

Posted 3-Sep-18 22:00pm

Maciej Los