Air carrier Captain reported experiencing GPS jamming while flying across the Middle East and losing the Right GPS for the rest of the flight.

Narrative

We received heavy GPS jamming and spoofing while transiting the Sinai Peninsula and the Gulf of Aden that continued through Jordan and more than a 100 NM into Saudi. The obvious results were loss of ADS-B Out integrity and the total loss of the Right GPS for the remainder of the flight. During the period of spoofing; my EFB showed us over Cairo at 400 ft. and 0 kt. for around 1 hour. As a mitigation I turned off GPS update at the first sign of the jamming. We maintained a good DME/DME position with an ANP of 0.4nm.The routing of this flight seemed to be the primary issue. Every aircraft going through the area were reporting issues including total loss of all navigation. With only a slightly longer path we could take the older routing that goes further south and crosses the Red Sea and go straight into Saudi and skip the worst of the jamming across the Gulf of Aden.Treat the GPS jamming and spoofing as a legitimate operational risk to be mitigated. Currently there seems to be no recognition that it could affect our operations. Create a group to work on securing technology that can provide GPS anti-jamming and spoofing technology to the aircraft or at least to the pilots via their EFBs.