An academic paper introducing timing attack cryptanalysis. Many elements of timing attacks are relevant to DPA.
Abstract: By carefully measuring the amount of time required to perform private key operations, attackers may be able to find fixed Diffe-Hellman exponents, factor RSA keys, and break other cryptosystems. Against a vulnerable system, the attack is computationally inexpensive and often requires only known ciphertext. Actual systems are potentially at risk, including cryptographic tokens, network-based cryptosystems, and other applications where attackers can make reasonably accurate timing measurements. Techniques for preventing the attack for RSA and Die-Hellman are presented. Some cryptosystems will need to be revised to protect against the attack, and new protocols and algorithms may need to incorporate measures to prevent timing attacks.
Download “Timing Attacks on Implementations of Diffie-Hellman, RSA, DSS, and Other Systems”
