SMS	Smart Metering System
SWM	Smart Water Metering
LWE	Learning with Errors
RLWE	Ring Learning with Errors
HE	Homomorphic Encryption
FHE	Fully Homomorphic Encryption
MHE	Multi-Party Homomorphic Encryption
MPC	Multi-Party Computation
CPK	Collective Public Key
CEK	Collective Evaluation Key
TB	Trust Boundary
CA	Certificate Authority
PKI	Public Key Infrastructure
DoS	Denial of Service
MitM	Man-in-the-Middle
TLS	Transport Layer Security
DP	Differential Privacy
LDP	Local Differential Privacy
TEE	Trusted Execution Environment
AMI	Advanced Metering Infrastructure
DLT	Distributed Ledger Technology
KB	Kilobyte
IND-CPA	Indistinguishability under the Chosen Plaintext Attack
IBE	Identity-based Encryption
PKG	Private Key Generator