Email is tied to domains. TLS is tied to domains. CORS is tied to domains. OAuth is tied to domains. Those are just four things I can think of while half asleep. Here’s one recent example of how screwing up a domain name is enough by itself to cause a security breach.
Cryptography is not security any more than domain names are; both are facets of how security is implemented but there’s no one system that makes the Internet secure.
Email is tied to domains. TLS is tied to domains. CORS is tied to domains. OAuth is tied to domains. Those are just four things I can think of while half asleep. Here’s one recent example of how screwing up a domain name is enough by itself to cause a security breach.
Cryptography is not security any more than domain names are; both are facets of how security is implemented but there’s no one system that makes the Internet secure.