Explain three different authentication protocols in detail

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong"}],"text":" This article was originally published in devever.net Website , Authorized by the original author InfoQ Translate and share ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Now? , The number of authentication protocols is catching up with application protocols , result , It's easy to get confused in this area ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" The most confusing thing is , Few people have noticed the fact that ："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" There are many different kinds of authentication protocols , They also try to play completely different roles ."}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" As usual , First of all, remember , Authentication and authorization are different functions . Consider this , There are essentially three different types of authentication protocols ："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Client to application （ Client authentication protocol ）"}]}]},{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Application to authentication server （ Back end authentication protocol ）"}]}]},{"type":"listitem","attrs":{"listStyle":null},"content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" Single sign on （ Client to authentication server to multiple applications ）"}]}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" The client to application authentication protocol is sent by the client to the application server for authentication . This protocol does not reveal at all how the application server authenticates it behind the scenes using the information provided by the client ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":" The application to authentication server protocol is used by the application server to delegate client authentication to a server , The client has provided information using the client to application protocol , The authentication server can perform authentication decisions better . This protocol allows authentication processing to be outsourced to a dedicated authentication server , And there's no need for the authentication database to have open access to all application servers ."}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}}]}