@inproceedings{BOS-FDTC:2005,
 AUTHOR    = {Johannes Bl{\"o}mer and Martin Otto and Jean-Pierre Seifert},
 TITLE     = {Sign Change Attacks On Elliptic Curve Cryptosystems},
 BOOKTITLE = {Fault Diagnosis and Tolerance in Cryptography --- FDTC 2005},
 EDITOR    = {L. Breveglieri and I. Koren},
 PAGES     = {25--40},
 ABSTRACT  = {
	We present a new type of fault attacks on elliptic curve scalar multiplications:
	Sign Change Attacks. These attacks exploit different number representations 
	as they are often employed in modern cryptographic applications. Previously,
	fault attacks on elliptic curves aimed to force a device to output points which
	are on a cryptographically weak curve. Such attacks can easily be defended
	against. Our attack produces points which do not leave the curve and are not
	easily detected. The paper also presents a revised scalar multiplication algorithm 
	that protects against Sign Change Attacks.},
}