In this paper we extend the ideas for differential fault attacks on the RSA cryptosystem (see [4]) to schemes using elliptic curves. We present three different types of attacks that can be used to derive information about
the secret key if bit errors can be inserted into the elliptic curve computations in a tamper-proof device. The effectiveness
of the attacks was proven in a software simulation of the described ideas.
Key words Elliptic Curve Cryptosystem - Differential Fault Attack