Additive complementary dual codes over F 4 *

International audienceA linear code is Linear Complementary Dual LCD if and only if it meets its dual trivially. LCD codes have been a hot topic recently due to Boolean masking application in the security of embarked electronics (Carlet, Guilley, 2014). Additive codes over F 4 are F 4-codes that are stable by codeword addition but not necessarily by scalar multiplication. The aim of this research is to study such codes which meet their dual trivially. All the techniques and problems used to study LCD codes are potentially relevant to ACD codes. Interesting constructions of ACD codes from binary codes are given with respect to the trace euclidean and trace hermitian inner product. The latter product is relevant to quantum codes