English to Persian (Farsi) Other Computers (general) expresion

As introduced before, we consider in this work the resiliency of
symmetric key pre-distribution schemes against node capture. We
propose a resilient class of key pre-distribution protocols that we
denote by HC (x) for hash-chain (x), where x is an existing pool
based key pre-distribution protocol. This class of protocols enhances
the resilience of existing schemes through a lightweight
hash chaining technique that conceals the same keys pre-loaded
in different sensor nodes. A preliminary work and few discussions
on the network resiliency were presented in [22].