A Decentralized Privacy-Preserving Healthcare Blockchain for IoT

. 2019 Jan 15;19(2):326. doi: 10.3390/s19020326

P	Plaintext or $d a t a_f i l e$
C	Ciphertext or Encrypted $d a t a_f i l e$
$k_{s y m}$	Symmetric Key
$C_{k}$	Encrypted Symmetric Key
$s k_{s_{p u b}}$	Senders Public Key for Digital Signature
$s k_{s_{p r i v}}$	Senders Private Key for Digital Signature
$r k_{s_{p u b}}$	Receivers Public Key for Digital Signature
$r k_{s_{p r i v}}$	Receivers Private Key for Digital Signature
$s k_{p u b}$	Senders Public Key for Encryption/Decryption
$s k_{p r i v}$	Senders Private Key for Encryption/Decryption
$r k_{p u b}$	Receivers Public Key for Encryption/Decryption
$r k_{p r i v}$	Receivers Private Key for Encryption/Decryption
$h a s h_{c}$	Hash value of the data received at verifier side
$h a s h_{p}$	Hash value of the plaintext or data send
u	user accounts on blockchain