C#

help

❔ How to convert line endings from my not encypted string to my encypted string

MMrScautHD2/4/2023

    public string EncryptString(string text) {
        if (this._encrypt) {
            byte[] iv = new byte[16];
            byte[] array;

            using (Aes aes = Aes.Create()) {
                aes.Key = Encoding.UTF8.GetBytes(this._encryptKey);
                aes.IV = iv;

                ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);

                using (MemoryStream memoryStream = new MemoryStream()) {
                    using (CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write)) {
                        using (StreamWriter streamWriter = new StreamWriter(cryptoStream)) {
                            streamWriter.Write(text);
                        }

                        array = memoryStream.ToArray();
                    }
                }
            }

            return Convert.ToBase64String(array);
        }

        return text;
    }

I tried already

return Convert.ToBase64String(array).ReplaceLineEndings(text);

But that does not work

MMrScautHD2/4/2023

i Encrypt my text

MMrScautHD2/4/2023

But

MMrScautHD2/4/2023

it does not copy the lines

MMrScautHD2/4/2023

because i wanna write that in a file

MMrScautHD2/4/2023

but it goes all in 1 long line

MMrScautHD2/4/2023

and not like before in more lines...

MMrScautHD2/4/2023

i hope anyone can help me 🙂

MMrScautHD2/4/2023

Has no one a idea?

MMrScautHD2/4/2023

AAntonC2/4/2023

idk what you're doing but I can point out two things about the code you should improve

AAntonC2/4/2023

1. use early returns

AAntonC2/4/2023

2. using has a second form that applies to the current scope

AAntonC2/4/2023

use that form

AAntonC2/4/2023

using var stream = new blah();

MMrScautHD2/4/2023

    public string EncryptString(string text) {
        if (this._encrypt) {
            byte[] iv = new byte[16];

            using (Aes aes = Aes.Create()) {
                aes.Key = Encoding.UTF8.GetBytes(this._encryptKey);
                aes.IV = iv;

                ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
                
                using (var memoryStream = new MemoryStream()) {
                    using (var cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write)) {
                        using (var streamWriter = new StreamWriter(cryptoStream)) {
                            streamWriter.Write(text);
                        }
                        
                        return Convert.ToBase64String(memoryStream.ToArray());
                    }
                }
            }
        }

        return text;
    }

MMrScautHD2/4/2023

like that?

EEro2/4/2023

did you even change anything

MMrScautHD2/4/2023

i try to give me Encrypted string the same line brakes

MMrScautHD2/4/2023

yes...

EEro2/4/2023

public string EncryptString(string text) {
    if (!_encrypt) {
        return text;
    }

    byte[] iv = new byte[16];

    using Aes aes = Aes.Create();
    aes.Key = Encoding.UTF8.GetBytes(this._encryptKey);
    aes.IV = iv;

    ICryptoTransform encryptor = aes.CreateEncryptor(aes.Key, aes.IV);
    
    using var memoryStream = new MemoryStream();
    using var cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write);
    using var streamWriter = new StreamWriter(cryptoStream);
    streamWriter.Write(text);

    return Convert.ToBase64String(memoryStream.ToArray());
}

EEro2/4/2023

they mean like this

MMrScautHD2/4/2023

yea well thats cleaner

MMrScautHD2/4/2023

thxx

MMrScautHD2/4/2023

But do you know

MMrScautHD2/4/2023

how i can give the EncryptString the same linke brakes

EEro2/4/2023

no clue, sorry

MMrScautHD2/4/2023

:/ ok

MMrScautHD2/4/2023

That is how it should look after a line

MMrScautHD2/4/2023

but it does just 1 very long line

MMrScautHD2/4/2023

MMrScautHD2/4/2023

i try to do the old line brakes before it get encrypted to the encrypted one

MMrScautHD2/4/2023

any one a idea?

EEro2/4/2023

so just to clarify, you want to keep the line breaks from the original string? and somehow take those over to the encrypted one?

EEro2/4/2023

or do you just want to add line breaks after a certain amount of characters

EEro2/4/2023

cause i mean, Base64FormattingOptions.InsertLineBreaks exists

MMrScautHD2/4/2023

yes

EEro2/4/2023

but i don't know if that's what you want

EEro2/4/2023

alright well, that can't work

EEro2/4/2023

that can never work

MMrScautHD2/4/2023

thats not possbile?

EEro2/4/2023

the only way i see this happening is if you first .Split() the string on the line breaks

EEro2/4/2023

and then encrypt each line individually

MMrScautHD2/4/2023

ouf

MMrScautHD2/4/2023

is it possible to get the count of characters of a line?

MMrScautHD2/4/2023

then i remove the spaces in it

MMrScautHD2/4/2023

and then i split it with the encpyted one every time when a normal line should end
would that not work?

MMrScautHD2/4/2023

btw this code does not work... (EDIT: i fixed it)

MMrScautHD2/4/2023

and return then a array?

EEro2/4/2023

and then .Join again

EEro2/4/2023

with Environment.NewLine as the delimitor

MMrScautHD2/4/2023

hey question

MMrScautHD2/4/2023

is it allowed to have just 1 character in a line?

MMrScautHD2/4/2023

because {

EEro2/4/2023

sure

MMrScautHD2/4/2023

you sure?

EEro2/4/2023

of course

MMrScautHD2/4/2023

because my console print

MMrScautHD2/4/2023

 ---> System.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

EEro2/4/2023

don't really know, sorry

MMrScautHD2/4/2023

    public string DecryptString(string text) {
        if (!this._encrypt) {
            return text;
        }
        
        using var aes = Aes.Create();
        aes.Key = Encoding.UTF8.GetBytes(this._encryptKey);
        aes.IV = new byte[16];
                
        ICryptoTransform decryptor = aes.CreateDecryptor(aes.Key, aes.IV);

        using var memoryStream = new MemoryStream(Convert.FromBase64String(text));
        using var cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read);
        using var streamReader = new StreamReader(cryptoStream);
        
        return streamReader.ReadToEnd();
    }

MMrScautHD2/4/2023

thats my Decrypter

MMrScautHD2/4/2023

ouf

AAccord2/5/2023

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.