Free online chat service "Cryptocat" to prevent eavesdropping by HTTPS, block cipher etc.

Chat contentsAESEncrypted withHTTPSThe chat service with high security which deletes log of unused chat in 1 hour is "Cryptocat"is. In the chat room you can exchange ZIP files and image files. Create chat rooms, chat methods, data transmission methods etc from the following.

Cryptocat
https://crypto.cat/

◆ How to use

I will access the above site.


Click "?" To automatically create a chat room name, so click "enter".


Click "I understand".


Enter "name in chat room" and click "chat". Here we set it to "puppy" which was automatically generated.


In order to create a key for encryption, we continue to enter deterrent alphanumeric characters by randomly hitting the keyboard until the display screen changes.


The chat room looks like this. To make a speech, enter "speech content" on the input form below and click "number" on the right.


Display of "name" and "speech content input"


When chatting with the other party, inform the person you want to chat about the URL of the chat room.


The person you want to chat with is access to the URL, enter "name in chat room", and click "chat".


When the other party enters the chat room, "The other's name has arrived" is displayed.


Display when there is a remark by the other party


In the chat room you can send ZIP files and image files. Click "Floppy Disk Icon" in the upper right, enter "Name of partner of chat room to send file", click "Select file", and decide the file to send. The size of the file is 600 KB.


By clicking "view encrypted image" you can check the file sent.


Even if the browser is minimized, if you want to check the other party's speech, click on the "balloon icon".


The speech content is displayed at the lower right of the screen.


Other, ON / OFF of sound effects · Invite chat from Facebook · Enlarge / reduce screen.