@article{amento2013efficient, author = {Amento, B. and Rötteler, M. and Steinwandt, R. and Roetteler, Martin}, title = {Efficient quantum circuits for binary elliptic curve arithmetic: reducing T-gate complexity}, year = {2013}, month = {January}, abstract = {Elliptic curves over finite fields GF(2n) play a prominent role in modern cryptography. Published quantum algorithms dealing with such curves build on a short Weierstrass form in combination with affine or projective coordinates. In this paper we show that changing the curve representation allows a substantial reduction in the number of T-gates needed to implement the curve arithmetic. As a tool, we present a quantum circuit for computing multiplicative inverses in GF(2n) in depth O(n log n) using a polynomial basis representation, which may be of independent interest.}, url = {http://approjects.co.za/?big=en-us/research/publication/efficient-quantum-circuits-for-binary-elliptic-curve-arithmetic-reducing-t-gate-complexity/}, pages = {631-644}, journal = {Quant. Inform. & Comp.}, volume = {13}, edition = {Quant. Inform. & Comp.}, }