This is achieved by optimizing the power of the core cipher on which 128-EEA2 is based, that is, the Advanced Encryption Standard (AES) in counter mode
. For that purpose, we introduce several power-efficient architectures and evaluate them in terms of area and power consumption.
The security engine in the 7956 accelerates a variety of IPsec and SSL/TLS protocols including DES, 3DES, AES (128, 192 and 256 bit with counter mode
support), MD5, SHA-1, true random number generator and public key.