Table 1 List of abbreviations
From: SMCP: a Secure Mobile Crowdsensing Protocol for fog-based applications
Abbreviation | Meaning |
|---|---|
CDC | Cloud Data Center |
ECC | Elliptic Curve Cryptography |
\(ED_i\) | the i-th edge device |
\(FD_i\) | the i-th fog device |
FIRF | Face Identification and Resolution Framework |
HAR | Human Activity Recognition |
KMS | Key Management Server |
RSA | Rivest-Shamir-Adleman |
SAKA | Secure key management and user authentication scheme |
SMCP | Secure Mobile Crowdsensing Protocol |
X3DHKA | Extended Triple Diffie–Hellman Key Agreement |
Notation | Meaning |
|---|---|
q | An integer specifying the finite field \({\mathbb {F}}_{q}\) |
FR | The basis used for representing the field elements |
\(\{a \text {,}\,b\}\) | Real numbers \(\in \)\({\mathbb {F}}_{q}\) defining the equation of the elliptic curve |
G | A distinguished point of order n in an elliptic curve group |
h | The cofactor of elliptic curve |
D | The set of elliptic curve domain parameters |
\(DH(\cdot )\) | Elliptic Curve Diffie–Hellman |
(\(EPU_i, EPR_i\)) | An ephemeral (public, private) key pair used by entity i |
(\(PU_i, PR_i\)) | A long-term (public, private) key pair used by entity i |
\(OPK_i\) | A set of one-time prekey used by i |
\(SPK_i\) | A momentary rekey signed by entity i |
\(KDF(\cdot )\) | A key derivation function |
\(K_S\) | The established session key |
\(Par_F\) | Set of parameters describing the characteristics of the fog device |
\(Cert_F\) | A Public-Key-Infrastructure certificate |
\(Info_F\) | A certificate containing the set \(Par_F\) |
\(FR_i\) | A message sent by entity i during the fog enrollment phase |
\(ER_i\) | A message sent by entity i during the edge enrollment phase |
\(K_{EC}\) | A symmetric key for early Edge-Cloud communications |
\(\Omega \) | The set of relevant micro-activities |
\(f_i\) | The i-th feature vector extracted by smart device’s embedded sensors |
\(C_i\) | The i-th cluster generated by K-Means |
\(E_{Ei}\) | The i-th message sent by edge device during the secure message exchange phase |
\(E_{Fi}\) | The i-th message sent by fog device during the secure message exchange phase |
\(N_i\) | The i-th nonce |