论文信息 - Detailed Cost Estimation of CNTW Attack against EMV Signature Scheme

Detailed Cost Estimation of CNTW Attack against EMV Signature Scheme

EMV signature is one of specifications for authenticating credit and debit card data, which is based on ISO/IEC 9796-2 signature scheme. At CRYPTO 2009, Coron, Naccache, Tibouchi, and Weinmann proposed a new forgery attack against the signature ISO/IEC 9796-2. They also briefly discussed the possibility when the attack is applied to the EMV signatures. They showed that the forging cost is $45,000 and concluded that the attack could not forge them for operational reason. However their results are derived from not fully analysis under only one condition. The condition they adopt is typical case. For security evaluation, fully analysis and an estimation in worst case are needed. This paper shows cost-estimation of CNTW attack against EMV signature in detail. We constitute an evaluate model and show cost-estimations under all conditions that Coron et al. do not estimate. As results, it has become clear that EMV signature can be forged with less than $2,000 according to a condition. This fact shows that CNTW attack might be a realistic threat.

[1] Michael Wiener,et al. Advances in Cryptology — CRYPTO’ 99 , 1999 .

[2] Jean-Sébastien Coron,et al. Practical Cryptanalysis of iso/iec 9796-2 and emv Signatures , 2009, CRYPTO.

[3] Yvo Desmedt,et al. A Chosen Text Attack on the RSA Cryptosystem and Some Discrete Logarithm Schemes , 1986, CRYPTO.

[4] Aggelos Kiayias,et al. BiTR: Built-in Tamper Resilience , 2011, IACR Cryptol. ePrint Arch..

[5] Jean-Sébastien Coron,et al. On the Security of RSA Padding , 1999, CRYPTO.

[6] László Lovász,et al. Factoring polynomials with rational coefficients , 1982 .

[7] Shai Halevi. Advances in Cryptology - CRYPTO 2009, 29th Annual International Cryptology Conference, Santa Barbara, CA, USA, August 16-20, 2009. Proceedings , 2009, CRYPTO.