Looking beyond XTR

XTR Implementation on Reconfigurable Hardware

Recently, Lenstra and Verheul proposed an efficient cryptosystem called XTR. This system represents elements of F∗p6 with order dividing p−p+1 by their trace over Fp2 . Compared with the usual representation, this one achieves a ratio of three between security size and manipulated data. Consequently very promising performance compared with RSA and ECC are expected. In this paper, we are dealing...

Side Channel Cryptanalysis on XTR Public Key Cryptosystem

SUMMARY The XTR public key cryptosystem was introduced in 2000. XTR is suitable for a variety of environments including low-end smart cards, and is regarded as an excellent alternative to RSA and ECC. Moreover, it is remarked that XTR single exponentiation (XTR-SE) is less susceptible than usual exponentiation routines to environmental attacks such as the timing attack and the differential powe...

Looking Beyond FDA Warning Letters to Explore Unforeseen Trouble Spots in eDTCA: A Response to Recent Commentaries

On Security of XTR Public Key Cryptosystems Against Side Channel Attacks

The XTR public key system was introduced at Crypto 2000. Application of XTR in cryptographic protocols leads to substantial savings both in communication and computational overhead without compromising security. It is regarded that XTR is suitable for a variety of environments, including low-end smart cards, and XTR is the excellent alternative to either RSA or ECC. In [LV00a,SL01], authors rem...

Collision Attack on XTR and a Countermeasure with a Fixed Pattern

Public-key cryptosystem (PKC) is one of inevitable key technologies in order to accomplish fruitful security applications in ubiquitous computing systems. The ubiquitous computer only has scarce computational resources (like Smart cards, RFID, Sensor Network), however, so that the light weight PKC is necessary for those miniaturized low-power devices. Recently, XTR is considered as one of good ...