- Is this secure?
Yes, the encryption used is very secure.
- What kind of encryption is used?
- Is there a back door? Can you read my encrypted text?
No. No one without the key can read the encrypted text and I don't know how to make a good back door.
- Is this going to install bad stuff on my computer or break stuff? Is this adware crap? Is this a virus?
No. I don't know how to do that.
- I lost the key, can you help me decrypt the text?
No. You lose the key and there's pretty much no way to decrypt the text, that is, until we get quantum computers.
- Do you have a quantum computer?
Yes, but I don't know how to use it.
Disclaimer: Do not use this if encryption is illegal in your country or if you plan to use this for illegal purposes.
This software is provided by the copyright holders and contributors "as is" and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the copyright owner or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.