The Tor Project has never received a legal demand to place a backdoor in its programs or source code, nor have we received any requests to hand over cryptographic signing material. We stand with Apple to defend strong encryption and to oppose government pressure to weaken it. We are exploring further ways to eliminate single points of failure, such as a vulnerability-reporting reward program to encourage external software developers to look for and report any vulnerabilities that affect our primary software products. Several of our developers have already stated that they would rather resign than honor any request to introduce a backdoor.”]
Source: https://blog.torproject.org/statement-tor-project-software-integrity-and-apple