Oddbean new post about login | logout Can there not be time bound key access?
Isnt that already an issue with any info?
Yes, you are right, it is the issue with any info. So you can encrypt a message to a pubkey, or encrypt a message to a shared key, but you cannot revoke access to that data after. The only way around this is to link to some centralized service where the data is stored, and even then people can take photos and/or copy and paste the data.
So since thats never going to change, fuck it. Stay centralized with others controlling your data is your answer?
The answer is to use encryption and assume that the data will be decrypted by the people in possession of the keys and once that happens the data cannot be taken away. If you're trying to give someone a file, and then revoke access later, then you need to have a centralized system with a login. Even then you cannot stop them from copying the file via other means.
This sounds like the current system, which is terrible 😐
Yes, you are right, it is the issue with any info. So you can encrypt a message to a pubkey, or encrypt a message to a shared key, but you cannot revoke access to that data after. The only way around this is to link to some centralized service where the data is stored, and even then people can take photos and/or copy and paste the data.
So since thats never going to change, fuck it. Stay centralized with others controlling your data is your answer?
The answer is to use encryption and assume that the data will be decrypted by the people in possession of the keys and once that happens the data cannot be taken away. If you're trying to give someone a file, and then revoke access later, then you need to have a centralized system with a login. Even then you cannot stop them from copying the file via other means.
This sounds like the current system, which is terrible 😐
Ok I can understand this point