Survey of Authentication and Authorization for the Internet of Things

Table 1

Queries used for the search.

Indexer	Query
General query	("Internet of Things" OR "IoT") AND "Security" AND ("Authentication" OR "Authorization" OR "Identity" OR "Access control") AND NOT ("Network" OR "Hardware" OR "RFID" OR "Protocol" OR "Cryptography" OR "Survey" OR "Study")
IEEE Xplore	(("Abstract": "Internet of Things" OR "Abstract": "IoT") AND ("Abstract": "Authentication" OR "Abstract": "Authorization" OR "Abstract": "Identity" OR "Abstract":"Access Control") AND "Index Terms": "Security" AND NOT(Search_Index_Terms: "Network" OR "Abstract": "Hardware" OR "Abstract": "Cryptography" OR "Abstract": "Protocol" OR "Document Title": "Survey" OR "Abstract": "RFID" OR "Document Title":"Study"))
ACM DL	recordAbstract:(IoT "Internet Of Things") AND recordAbstract:(Authentication Authorization Identity "Access Control" -Hardware -Cryptography -Protocol -RFID) AND acmdlTitle:(-Study -Survey) AND keywords.author.keyword:(-Hardware -Physical -Network)
WoS	("internet of things" OR IoT) AND TOPIC: (Security) AND TOPIC: (Authentication OR Authorization OR Identity OR "Access Control") NOT TOPIC: (Hardware OR Cryptography OR Protocol OR RFID OR Physical OR Network) NOT TOPIC: (Study OR Survey)
SpringerLink	(Authentication OR Authorization OR Identity OR "Access Control") + title ("Internet of Things" OR IoT)
ScienceDirect	TITLE-ABSTR-KEY("Internet of Things" OR "IoT") AND TITLE-ABSTR-KEY(Authentication OR Authorization OR Identity OR "Access Control") AND KEY(Security) AND NOT (TITLE-ABSTR-KEY(Hardware OR Cryptography OR Protocol OR RFID) OR title(study OR survey) OR key(Physical OR Network))