Are any of the TCP congestion control algorithms dependent on a router's TCP receiving messages that are trusted by the router to be originating from upstream routers based on an authentication scheme that the router manufacturers trust to deliver anti-DDOS safety features?
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Are any of the TCP congestion control algorithms dependent on a router's TCP receiving messages that are trusted by the router to be originating from upstream routers based on an authentication scheme that the router manufacturers trust to deliver anti-DDOS safety features?
Much more likely to be UDP.
Would you say that such a UDP-based scheme is safer than TCP?
It's designed for such applications where timely delivery is more important than its confirmation and old data is useless.
Safer? In the timeliness sense yes, in the delivery of important info yes, in the reliability of each packet no.