a government agency can surely decrypt it if they truly wanted to
They can't. Not using any known technology. Even basic encryption like AES256 would take 10^50 years on a supercomputer. That's not even getting into quantum-resistant encryption.
a government agency can surely decrypt it if they truly wanted to
They can't. Not using any known technology. Even basic encryption like AES256 would take 10^50 years on a supercomputer. That's not even getting into quantum-resistant encryption.