Comment data forwarding rather than encryption backdoor? (Score 1) 51
Although I don't actually want this... surely there can be a "we can listen but you can't" based on data forwarding and asymmetric encryption. e.g. the FBI publish rotating public keys (perhaps a. indexing key, b. metadata key and c. content key) and tell all businesses what information they must encrypt and forward and with which keys. Storing, filtering, indexing and access controls are entirely the responsibility of the FBI and hopefully a court order and super safe data handling requirements are enforced, such as the indexing servers having access to only the indexing-data private-key.
Not an encryption backdoor, just a requirement to encrypt and forward piles of content. and yes, the encryption itself must be bulletproof otherwise all bets are off.