WARX: efficient white-box block cipher based on ARX primitives and random MDS matrix

White-box cryptography aims to provide secure cryptographic primitives and implementations for the white-box attack model, which assumes that an adversary has full access implementation of algorithms. Real-world applications require highly efficient schemes, whereas existing proposals cannot meet this demand. In paper, we design a new block cipher based on addition/rotation/XOR (ARX) random maximal distance separable (MDS) matrix, ARX (WARX), aiming in both black- models. The WARX black-box model is nine times faster than SPNbox-16 from ASI-ACRYPT’16, more WEM CT-RSA’17. Moreover, security models analyzed, ensures its practical applicability. shows linear layer can improve efficiency cipher. This article may inspire provably ciphers help narrow gap between schemes academia applicable great demand industry.