Hybrid MQ Signature for Embedded Device

The embedded security system is a special embedded system to perform secure authentication and communication with cryptographic technique, and it is one of the effective approaches to solve security problems of the embedded system at present. Multivariate public key cryptosystem has the potential to resist the attacks of quantum computers. And its operating efficiency is generally better than that of number theoretic-based system, so it is very suitable for the resource-limited device like embedded device. In view of this, this paper provides a secure multivariate signature scheme RGB respectively effectively implemented on S5PV210 and MT6582 microprocessors. RGB signature scheme of security levels at $$2^{64}$$, $$2^{80}$$, $$2^{96}$$, $$2^{118}$$ and $$2^{128}$$ have been respectively performed for convenient in practical use. Experimental data show that our implementations are highly efficient, meeting requirements of security level and real-time operation for high-end users and low-end users, and play a referential role in implementing other multivariate public key cryptographies on resource-limited devices.