06-HMAC

HMAC (Hash-based message authentication codes)

You can verify the intregrity and authenticity of a message. It uses a key to sign a message. The receiver verifies the hash using the same key.

Bearer Token

Defined by RFC6750. It uses authoration header and keyword "Bearer"

JWT Token

RFC 7519: JSON Web Token

https://tools.ietf.org/html/rfc7519