yes. the permission access is as strong as a shared_secret between Alpha and Beta. shared_secret AUTH_TOKEN=HASH(shared_secret + challenge_string) wh

yes. the permission access is as strong as a shared_secret between Alpha and Beta. shared_secret AUTH_TOKEN=HASH(shared_secret + challenge_string) when Gamma asks for access to Beta, Beta gives a unique challenge_string, and says "give me AUTH_TOKEN and I will let you in": Gamma -> Beta "let me in" Beta -> Gamma challenge_string = "dlkjaflkjaflkjflkjflfkjflkj" "give me AUTH_TOKEN and I will let you in" Gamma -> Alpha challenge_string = "dlkjaflkjaflkjflkjflfkjflkj" "can you give me AUTH_TOKEN?" Alpha -> Gamma AUTH_TOKEN= HASH(shared_secret + "dlkjaflkjaflkjflkjflfkjflkj") "here is AUTH_TOKEN" Gamma -> Beta "here is AUTH_TOKEN and challenge_string let me in" Beta -> Gamma if (AUTH_TOKEN == HASH(SHARED_SECRET+CHALLENGE_STRING) "you can come in" else "no"