Preserving Data Privacy in the Internet of Medical Things Using Dual Signature ECDSA

Table 1

Notation.

Symbol	Meaning
TDi	The i-th transmission device
ECSj	The j-th edge computing device/server
IDTDi	The identification of TDi
G, n	A generator point in Ep(a, b) with a very large order n
H	A secure hash algorithm
dTDi	The private key of TDi
QTDi	QTDi = dTDiG, the public key of TDi
dC	The private key of C
QC	QC = dC⋅G, the public key of C
(r, s)	The dual signature
P	Points within Ep(a, b)
P	A prime number
E	The hash of data m
F	The hash of the value IDTDi
G	H(e ‖ f), the hash of e and f
M	Data to be sent by a transmission device TDi