Patent ID: 8560832
Filing Date: 2013-10-15
Classification: H04L

Abstract:
1. An information processing apparatus comprising: a plurality of encryption/decryption and message authentication units which are configured to perform encryption/decryption processing and message authentication processing by switching therebetween in a predetermined block unit, and to be operable in parallel; a data transfer control unit which distributes processing target data associated with an encryption/decryption and message authentication processing request to said plurality of encryption/decryption and message authentication units; and a switching unit which switches an operation mode of said data transfer control unit in accordance with a circumstance in which the processing request arises, wherein said data transfer control unit has two modes: a first operation mode in which said data transfer control unit distributes the processing target data so that one of said plurality of encryption/decryption and message authentication units performs the encryption/decryption processing and at least one of the remainder of said plurality of encryption/decryption and message authentication units performs the message authentication processing, and a second operation mode in which said data transfer control unit distributes the processing target data so that each of said plurality of encryption/decryption and message authentication units exclusively performs the encryption/decryption processing and the message authentication processing in the predetermined block unit, and wherein said switching unit selects the first operation mode when one processing request arises, and selects the second operation mode when a plurality of processing requests arise.