C#•2y ago

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

    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;
    }

    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);

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

But that does not work

28 Replies

MrScautHDOP•2y ago

i Encrypt my text But it does not copy the lines because i wanna write that in a file but it goes all in 1 long line and not like before in more lines... i hope anyone can help me 🙂 Has no one a idea? :/

Anton•2y ago

idk what you're doing but I can point out two things about the code you should improve 1. use early returns 2. using has a second form that applies to the current scope use that form using var stream = new blah();

MrScautHDOP•2y ago

    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;
    }

    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;
    }

like that?

ero•2y ago

did you even change anything

MrScautHDOP•2y ago

i try to give me Encrypted string the same line brakes yes...

ero•2y ago

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());
}

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());
}

they mean like this

MrScautHDOP•2y ago

oh yea well thats cleaner thxx But do you know how i can give the EncryptString the same linke brakes

ero•2y ago

no clue, sorry

MrScautHDOP•2y ago

:/ ok

MrScautHDOP•2y ago

That is how it should look after a line

MrScautHDOP•2y ago

but it does just 1 very long line

MrScautHDOP•2y ago

MrScautHDOP•2y ago

i try to do the old line brakes before it get encrypted to the encrypted one any one a idea?

ero•2y ago

so just to clarify, you want to keep the line breaks from the original string? and somehow take those over to the encrypted one? or do you just want to add line breaks after a certain amount of characters cause i mean, Base64FormattingOptions.InsertLineBreaks exists

MrScautHDOP•2y ago

yes

ero•2y ago

but i don't know if that's what you want alright well, that can't work that can never work

MrScautHDOP•2y ago

thats not possbile?

ero•2y ago

the only way i see this happening is if you first .Split() the string on the line breaks and then encrypt each line individually

MrScautHDOP•2y ago

ouf is it possible to get the count of characters of a line? then i remove the spaces in it and then i split it with the encpyted one every time when a normal line should end would that not work? btw this code does not work... (EDIT: i fixed it) and return then a array?

ero•2y ago

and then .Join again with Environment.NewLine as the delimitor

MrScautHDOP•2y ago

hey question is it allowed to have just 1 character in a line? because {

ero•2y ago

sure

MrScautHDOP•2y ago

you sure?

ero•2y ago

of course

MrScautHDOP•2y ago

because my console print

 ---> 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.

 ---> 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.

ero•2y ago

don't really know, sorry

MrScautHDOP•2y ago

    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();
    }

    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();
    }

thats my Decrypter ouf

Accord•2y ago

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.

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