12May
Ensure that a file can only be decrypted after a specific date
Are there any cryptographic schemes/protocols that would allow me to encrypt a file, make it publicly available, but ensure that it can only be decrypted after specific date?
I assume it would be almost impossible without a trusted authority (notary). Or is there some way?
I was inspired by the idea of "secure triggers", which is a scheme to decrypt data after a specific event has happened. But this "trigger event" is only known to the author.
In contrast, I am interested in a cryptographic scheme that would enable decryption of data at (or after) a specific date which is publicly known.
