
8201, 8202, 8203, 8204 Acceleration Processor Data Sheet, DS-0157-05
Page 106
Exar Confidential
4.1.4
Hash Engine after Encryption Engine
Figure 4-4 shows the data flow when the position of the Hash engine is after the Encryption
engine and all four engines are enabled. In this configuration, the Hash engine calculates
the MAC value on the encrypted, compressed data with padding, ENC(CMP + Pad). The
Figure 4-3. Encode Operation: Hash Engine after Pad Engine