SEED masking implementations against power analysis attacks

Electronics cryptographic devices can be attacked by monitoring physical characteristics released from their circuits, such as power consumption and electromagnetic emanation. These techniques are known as Side Channel Attacks (SCAs). The Differential Power Analysis (DPA) is one of the most effective SCAs, which can reveal the secret key from the dependency between power consumption of the device and the processed data. This paper presents the first masking countermeasure implementation on SEED encryption algorithm. Two masking schemes are applied to SEED in this work. The implementation results are compared.