>>524072
Was reminded of Q=Alice when investigating Clock Encryption earlier.
Came across this article.
“Time-lock encryption. Alice has a document that she wants to make public in, say, a couple of days, but she is not willing to hand it out to anybody before this deadline. Therefore she puts the document into a box and attaches a time-lock. The lock keeps the box securely sealed, and thus the document confidential, for the determined period of time. It will unlock automatically when the deadline has passed, which makes it possible for everyone to access the document easily, without any further interaction with Alice. Time-lock encryption is a digital equivalent of such time-locked boxes. It allows to encrypt data for a period of time, up to a certain deadline, such that even a computationally powerful adversary is not able to learn any non-trivial information about the data before the deadline. However, when the time is over, even parties with relatively weak computational resources should immediately be able to decrypt easily.”
https:/ /eprint.iacr.org/2015/478.pdf