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1. (WO2018141358) PROCESSING DEVICE, COMMUNICATION DEVICE AND METHODS THEREOF

Pub. No.:    WO/2018/141358    International Application No.:    PCT/EP2017/052015
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Feb 01 00:59:59 CET 2017
IPC: H04L 29/06
G06F 13/40
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
LUNDGREN, Thomas
Inventors: LUNDGREN, Thomas
UDEN, Johan
Title: PROCESSING DEVICE, COMMUNICATION DEVICE AND METHODS THEREOF
Abstract:
The invention relates to a processing device (100) comprising a buffer (102) coupled to a system bus (104), a ciphering device (106) coupled to the system bus (104), and a memory (108) coupled to the ciphering device (106). The processing device (100) is configured to operate in at least one of a deciphering mode and a ciphering mode. When the processing device (100) is configured to operate in the deciphering mode, the ciphering device (106) is configured to receive a ciphered data unit directly from the buffer (102) over the system bus (104), decipher the ciphered data unit so as to obtain a deciphered data unit, and transfer the deciphered data unit to the memory (108). When the processing device (100) is configured to operate in the ciphering mode, the ciphering device (106) is configured to receive a data unit from the memory (108), cipher the data unit so as to obtain a ciphered data unit, and transfer the ciphered data unit directly to the buffer (102) over the system bus (104). Furthermore, the invention also relates to corresponding methods, a computer program, and a computer program product.