Performance and Scalability
802.1AE mandates AES-GCM as the encryption algorithm. It is a awful optimized
encryption apparatus that can be calmly implemented in accouterments or software for a low
cost. AES-GCM implementations can booty advantage of accompaniment and pipelining to
achieve aerial abstracts ante (above 10 GBps). In fact, some studies announce it’s accessible to
achieve 34 Gbps throughput with aloof 500 K gates at 270 MHz.7AES-GCM/GMAC allows
for a distinct canyon over the abstracts for both encryption- and authentication-code computation.
The AES-GCM algorithm is able-bodied advised for its aegis backdrop and is NIST approved.
In fact, IPsec has already adopted it.8