An architecture for elliptic curve cryptograph computation

It is known that several public key cryptosystems such as RSAs, ElGamals and elliptic curve cryptosystems [1], and also elliptic curve cryptosystems require smaller keys and more efficient operation than RSAs and ElGamals for same security. For example, elliptic curve cryptosystems with 160 bits key have same security as RSAs and ElGamals with 1024 bits key have. We focus elliptic curve cryptosystems and propose an architecture of computation unit for an elliptic curve cryptosystem with small hardware.