Internet Protocol Security -LRB- IPsec -RRB- is a suite of protocols for securing Internet Protocol -LRB- IP -RRB- communications by authenticating -LRB- and optionally encrypting -RRB- each of a data stream.
Internet Protocol Security -LRB- IPsec -RRB- is a collection protocols for securing Internet Protocol -LRB- IP -RRB- communications by authenticating -LRB- and optionally encrypting -RRB- each of a data stream.