it does not. end to end encryption and point to point encryption are two ways of delivering an encrypted message to a destination. a point to point encrypted message has a message and header that are decrypted by every node in the network to determine where to route it next. an end to end encrypted message has its header and body encrypted separately such that only the sender and recipient see the body, but the nodes can read the header for routing. encrytion at rest just means that the message, once saved to disk, is encrypted