The name “Bearer authentication” can be understood as “give access to the bearer of this token.” [1]

There are many types of authentication scheme [2]

Commonly used to distinguish between Basic (with userid/password) and Bearer (authorisation using a token).

[1] https://www.devopsschool.com/blog/what-is-bearer-token-and-h...

[2] https://www.iana.org/assignments/http-authschemes/http-auths...

its for identifying how the value is parsed. there other values are Basic and Digest which are sending the password to the server. basic is base64 encoded username:password, Digest is similar but the data is hashed with md5 and contains a nonce that can be used to prevent replay attacks.

This isn’t really that kind of forum, mate.