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251	Smart card fault attacks on public key and elliptic curve cryptography Ling, Jie January 2014 (has links) Indiana University-Purdue University Indianapolis (IUPUI) / Blömmer, Otto, and Seifert presented a fault attack on elliptic curve scalar multiplication called the Sign Change Attack, which causes a fault that changes the sign of the accumulation point. As the use of a sign bit for an extended integer is highly unlikely, this appears to be a highly selective manipulation of the key stream. In this thesis we describe two plausible fault attacks on a smart card implementation of elliptic curve cryptography. King and Wang designed a new attack called counter fault attack by attacking the scalar multiple of discrete-log cryptosystem. They then successfully generalize this approach to a family of attacks. By implementing King and Wang's scheme on RSA, we successfully attacked RSA keys for a variety of sizes. Further, we generalized the attack model to an attack on any implementation that uses NAF and wNAF key. Smart Card RSA ECC Fault Attack Smart Card Security Public Key NAF wNAF Counter Fault Attack Bit Flip Attack Doubling Attack Attack Simulation Data encryption (Computer science) Curves, Elliptic -- Data processing Cryptography -- Mathematics Public key cryptography -- Research Data protection -- Research Computer engineering -- Research Coding theory Computer security Data structures (Computer science) Embedded computer systems Smart card industry Computer networks -- Security measures Computers -- Access control

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Smart card fault attacks on public key and elliptic curve cryptography