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Efficient Length Doubling From Tweakable Block Ciphers
length doubler LDT tweakable block ciphers
2017/9/7
We present a length doubler, LDT, that turns an n-bit tweakable block cipher into an efficient and secure cipher that can encrypt any bit string of length [n..2n-1]. The LDT mode is simple, uses only ...
Affine-malleable Extractors, Spectrum Doubling, and Application to Privacy Amplification
Affine-malleable Extractors Spectrum Doubling
2015/12/21
The study of seeded randomness extractors is a major line of research in theoretical computer
science. The goal is to construct deterministic algorithms which can take a “weak” random
source X with ...
Efficient Doubling on Genus 3 Curves over Binary Fields
Genus 3 Hyperelliptic Curve Explicit Doubling Formulae Fast Arithmetic
2009/2/18
The most important and expensive operation in a hyperelliptic curve cryptosystem
(HECC) is scalar multiplication by an integer k, i.e., computing an integer k times a divisor D on the Jacobian. Using...
Faster addition and doubling on elliptic curves
elliptic curves addition doubling explicit formulas
2008/8/14
Edwards recently introduced a new normal form for elliptic curves. Every elliptic curve over a non-binary field is birationally equivalent to a curve in Edwards form over an extension of the field, an...