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Table 2 Symbolizations utilized in the suggested scheme

From: Securing communication by attribute-based authentication in HetNet used for medical applications

Notation

Description

BS

Base station

Msk

Master secret key

O

Data owner

R

Data requester

MBS

Macro base station

Ny

Nonce number

Kr, Ks

Public keys of BS and data requester

S

Credentials of user (attributes)

Rx

Packet received

Z

Attribute trust list

Sd

Packet sent

Si, Ki

Secret and public keys to i users