I just wrote an opensource html/javascript page for encoding messages that can be read using only paper and a light. You can try it here:
http://rareventure.com/paper_otp/
The message is split up into two pages. Both are required to reveal the message. This can be used as a way to reveal important passwords, etc. for friends/family, in case something happens to you, by giving each of the two pages to two people you trust.
Messages are created locally on your machine and not transmitted anywhere. It uses the "one time pad" algorithm, which is provably uncrackable as long as the key used is random and never reused.
Pretty cool!
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit
Congratulations @floureel! You have received a personal award!
Click on the badge to view your own Board of Honnor on SteemitBoard.
For more information about this award, click here
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit
Congratulations @floureel! You received a personal award!
You can view your badges on your Steem Board and compare to others on the Steem Ranking
Do not miss the last post from @steemitboard:
Vote for @Steemitboard as a witness to get one more award and increased upvotes!
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit